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Home Products Crystals, Oscillators, Resonators Oscillators~~SG-8018CE 4.0000M-TJHPA0~~

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SG-8018CE 4.0000M-TJHPA0 - EPSON

Name: EPSON SG-8018CE 4.0000M-TJHPA0
Brand: EPSON
SKU: SG-8018CE 4.0000M-TJHPA0
Price: 0.591 USD
Availability: InStock
Rating: 5 (10 reviews)

Manufacturer Part Number: SG-8018CE 4.0000M-TJHPA0

Manufacturer: Epson

Allelco Part Number: 98D-SG-8018CE 4.0000M-TJHPA0

Warranty: 1 Year Allelco Warranty - Find out more

Stock Status:: 36,713 pcs available, New & Original

Parts Description: XTAL OSC XO 4.0000MHZ CMOS SMD

Package: 4-SMD, No Lead

Data sheet: -

RoHs Status: ROHS3 Compliant

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Specifications

SG-8018CE 4.0000M-TJHPA0 Tech Specifications
EPSON - SG-8018CE 4.0000M-TJHPA0 technical specifications, attributes, parameters and parts with similar specifications to EPSON - SG-8018CE 4.0000M-TJHPA0

Product Attribute	Attribute Value
Manufacturer	Epson
Voltage - Supply	1.62V ~ 3.63V
Type	XO (Standard)
Spread Spectrum Bandwidth	-
Size / Dimension	0.126" L x 0.098" W (3.20mm x 2.50mm)
Series	SG-8018
Ratings	-
Package / Case	4-SMD, No Lead
Package	Tape & Reel (TR)
Output	CMOS

Product Attribute	Attribute Value
Operating Temperature	-40°C ~ 105°C
Mounting Type	Surface Mount
Height - Seated (Max)	0.047" (1.20mm)
Function	Enable/Disable
Frequency Stability	±50ppm
Frequency	4 MHz
Current - Supply (Max)	3.5mA
Current - Supply (Disable) (Max)	3.5mA
Base Resonator	Crystal
Absolute Pull Range (APR)	-

Environmental & Export Classifications

ATTRIBUTE	DESCRIPTION
RoHs Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8542.39.0001

Frequently Asked Questions(FAQ)

What are the key electrical and environmental specifications for the SG-8018CE 4.0000M-TJHPA0 oscillator, and how do they influence system-level power and thermal design?: The SG-8018CE 4.0000M-TJHPA0 operates at a nominal frequency of 4 MHz with a supply voltage range of 1.62V to 3.63V, which allows compatibility with low-power microcontrollers and battery-operated systems. Its maximum supply current is 3.5 mA under active operation and up to 3.5 mA when disabled, enabling dynamic power management strategies in energy-constrained applications. The device maintains frequency stability within ±50 ppm across an operating temperature range from -40°C to 105°C, ensuring reliable timing performance in automotive or industrial environments where thermal extremes are common. This wide temperature tolerance reduces the need for additional thermal compensation circuitry, simplifying board layout and lowering BOM cost. The CMOS output type provides clean digital signaling suitable for synchronous logic interfaces without requiring external buffering.

How does the enable/disable functionality of the SG-8018CE 4.0000M-TJHPA0 impact power savings in battery-powered embedded designs, and what timing considerations should be accounted for during state transitions?: The enable/disable control pin allows the SG-8018CE 4.0000M-TJHPA0 to transition between active and standby modes, reducing average power consumption by effectively cutting the 3.5 mA supply current during inactive periods. In a typical IoT sensor node that wakes periodically every 10 seconds, this feature can reduce overall power draw by over 90% compared to continuous oscillation. However, designers must account for startup latency—approximately 1 ms typical—when re-enabling the oscillator after disable. This delay affects real-time response requirements; for example, a system needing sub-millisecond wake-up timing may require alternative clocking strategies or buffer delays. Proper use of this function demands coordination with microcontroller sleep modes and interrupt handling to avoid missed events or timing inaccuracies.

When comparing the SG-8018CE 4.0000M-TJHPA0 to other 4 MHz oscillators, how does its frequency stability and supply voltage range affect long-term system reliability in mission-critical applications?: Compared to ceramic resonator-based alternatives, the SG-8018CE 4.0000M-TJHPA0 offers superior frequency stability (±50 ppm) due to its crystal-based resonator, resulting in tighter clock accuracy over time and temperature. Unlike some lower-cost oscillators that degrade beyond ±100 ppm, this device maintains consistent performance across its full operating range, which is critical in precision timing applications such as communication protocols or data logging systems. Its extended supply voltage tolerance (1.62V–3.63V) also surpasses many fixed-voltage oscillators limited to 3.3V or 5V, providing resilience against brownout conditions and voltage fluctuations in power-sensitive designs. These characteristics make it preferable in applications like medical devices or industrial controllers where long-term reliability outweighs initial cost.

What are the mechanical and packaging implications of selecting the SG-8018CE 4.0000M-TJHPA0 for high-density PCB assembly, and how does its MSL rating inform storage and handling procedures?: The SG-8018CE 4.0000M-TJHPA0 comes in a compact 4-SMD, no-lead package measuring 3.20 mm × 2.50 mm with a height of 1.20 mm, supporting fine-pitch surface mount technology (SMT) layouts ideal for space-constrained consumer electronics. This small footprint enables higher component density on multilayer PCBs without increasing board size. With a Moisture Sensitivity Level (MSL) of 1, the device has unlimited shelf life and requires no baking prior to reflow, simplifying inventory management and assembly logistics. MSL 1 compliance also means it can be stored indefinitely in standard ambient conditions, reducing risk of moisture-related defects during soldering. This makes the SG-8018CE particularly suitable for mass production environments where rapid turnarounds and minimal handling protocols are essential.

How does the operating temperature range of the SG-8018CE 4.0000M-TJHPA0 compare to standard commercial-grade oscillators, and what design accommodations might be necessary for automotive or industrial deployments?: While most commercial-grade oscillators operate only from 0°C to 70°C, the SG-8018CE 4.0000M-TJHPA0 supports a full industrial temperature range of -40°C to 105°C, making it inherently compatible with automotive ECU modules and outdoor instrumentation exposed to extreme climates. This extended range eliminates the need for custom thermal shielding or derating calculations in harsh environments. However, even within this range, PCB trace length matching and ground plane integrity remain critical to minimize parasitic capacitance and inductance that could affect signal integrity. Additionally, solder joint reliability at high temperatures should be verified through accelerated life testing if used in vibration-prone automotive assemblies. The combination of robust electrical performance and broad thermal tolerance reduces system-level qualification effort.

Can the SG-8018CE 4.0000M-TJHPA0 be used in applications requiring precise phase alignment with multiple clock domains, and how does its CMOS output support synchronization?: Yes, the SG-8018CE 4.0000M-TJHPA0’s CMOS output provides a clean digital waveform suitable for direct connection to microcontroller clocks, FPGA inputs, or communication peripherals without requiring level translation. Its rise and fall times are typically under 10 ns in most configurations, enabling reliable setup and hold margins in synchronous digital systems. For multi-clock domain designs, such as those involving USB or Ethernet MAC layers, the stable 4 MHz reference ensures predictable phase relationships when synchronized via PLLs or dividers. Because the output impedance is low and drive strength is sufficient for short traces (<15 cm), signal degradation is minimal, preserving timing margins even in cascaded logic paths. This simplifies clock tree synthesis in complex SoC-based platforms.

What factors should engineers evaluate when substituting the SG-8018CE 4.0000M-TJHPA0 with another oscillator model in an existing design, particularly regarding package compatibility and supply sensitivity?: Substitution requires careful comparison of both physical and electrical parameters. The SG-8018CE 4.0000M-TJHPA0 uses a 4-SMD no-lead package, so replacement candidates must match not only pinout but also footprint dimensions (3.20 mm × 2.50 mm). Voltage sensitivity is another concern: while the SG-8018CE tolerates 1.62V–3.63V, many oscillators are restricted to fixed rails like 3.3V. A drop to 1.8V could cause marginal noise immunity if the new part lacks adequate hysteresis. Similarly, frequency stability must remain within ±50 ppm to preserve timing budgets. Thermal drift, aging characteristics, and enable logic levels (active-high vs. active-low) must all be verified. Failure to align these parameters risks functional failure or increased EMI susceptibility in sensitive analog coexistence scenarios.

How does the RoHS and REACH compliance status of the SG-8018CE 4.0000M-TJHPA0 influence global regulatory approval processes for finished products, and what documentation is typically required?: The SG-8018CE 4.0000M-TJHPA0 is fully RoHS3 compliant and REACH unaffected, meaning it contains no restricted substances above threshold limits and does not introduce novel chemical risks. This accelerates certification for markets including EU, North America, and Japan, where hazardous substance regulations are strictly enforced. Manufacturers often include the manufacturer’s declaration of conformity (DoC) in their procurement records, referencing part number SG-8018CE 4.0000M-TJHPA0 along with test reports confirming halogen content below 0.1 wt%. For high-reliability sectors like aerospace or medical, additional screening may still apply, but basic compliance significantly reduces legal liability and import barriers. Inclusion in supply chain transparency platforms further supports ESG reporting initiatives.

In what scenarios would the disable feature of the SG-8018CE 4.0000M-TJHPA0 provide measurable benefits over always-on oscillators, and how does this affect system wake-up sequencing?: The disable capability becomes valuable in periodic sampling systems such as environmental monitors or security sensors that transmit data infrequently—once per hour or less. By disabling the oscillator during idle intervals, total power consumption drops dramatically, extending battery life from weeks to months. However, wake-up sequencing must account for the ~1 ms stabilization time after re-enabling the SG-8018CE 4.0000M-TJHPA0. If the microcontroller starts executing code before this period elapses, timing errors or missed interrupts may occur. Designers should therefore delay critical tasks until a software flag confirms stable clocking, or use an internal RC oscillator as a backup during wake-up transient phases. This trade-off between power savings and deterministic startup behavior is central to low-power firmware architecture decisions.

How does the choice between CMOS and TTL outputs affect integration with legacy versus modern digital ICs, and why might the SG-8018CE 4.0000M-TJHPA0’s CMOS output be advantageous in mixed-signal designs?: CMOS outputs operate at rail-to-rail voltages and have high input impedance, making them ideal for interfacing with modern low-voltage logic families such as ARM Cortex-M series or RISC-V processors running at 1.8V or 3.3V. In contrast, TTL outputs swing between fixed thresholds and consume more static power, complicating integration with ultra-low-power systems. The SG-8018CE 4.0000M-TJHPA0’s CMOS output ensures clean logic levels even near supply boundaries, reducing susceptibility to noise in mixed-signal environments containing ADCs or RF modules. Furthermore, its 3.5 mA drive capability supports fan-out up to six standard CMOS loads without buffering, simplifying layout in dense designs. This flexibility avoids the need for level shifters or additional logic gates, preserving board area and reducing component count.

What precautions should be taken during PCB layout to maintain signal integrity with the SG-8018CE 4.0000M-TJHPA0, especially in noisy industrial environments?: To preserve signal integrity, keep clock traces as short as possible and avoid routing parallel to switching power lines or motor control signals. The SG-8018CE 4.0000M-TJHPA0’s 4 MHz fundamental mode is susceptible to harmonic interference if adjacent traces carry high di/dt currents. A solid ground plane beneath the oscillator minimizes loop inductance and shields against capacitive coupling. Decoupling capacitors (e.g., 100 nF ceramic) placed within 5 mm of VDD pins suppress high-frequency supply noise that could modulate output jitter. In industrial settings, adding a small ferrite bead in series with the supply line can further attenuate conducted emissions. These practices help maintain phase noise performance and prevent false triggering in downstream sequential circuits.

How does the absence of spread spectrum modulation in the SG-8018CE 4.0000M-TJHPA0 affect EMI compliance in FCC or CE-marked products, and what mitigation techniques remain viable?: Unlike spread-spectrum oscillators designed to reduce peak emissions at specific frequencies, the SG-8018CE 4.0000M-TJHPA0 produces a narrowband 4 MHz tone that can contribute to radiated emission spikes if not properly managed. This increases the burden on PCB-level filtering or enclosure shielding during EMI certification. Mitigation includes using a π-filter network at the oscillator output, minimizing loop antenna effects through compact layout, and ensuring return paths align with reference planes. Alternatively, software techniques such as bit-banging non-critical peripherals on slightly offset frequencies may disperse spectral energy. Despite lacking native spread spectrum, the device’s stable amplitude and low phase noise still allow compliance with Class B limits when combined with good engineering practices.

What role does the base resonator type play in the long-term frequency accuracy of the SG-8018CE 4.0000M-TJHPA0, and how does it compare to MEMS-based alternatives?: The SG-8018CE 4.0000M-TJHPA0 uses a quartz crystal resonator, which exhibits superior long-term frequency accuracy and low aging rates—typically less than 1 ppm per year—compared to early MEMS oscillators that suffered from higher drift. While modern MEMS devices now approach similar stability, they often require warmer operating environments or compensation algorithms to match crystal performance. For applications demanding decade-long reliability without recalibration—such as metering systems or GPS timing references—the proven track record of quartz makes the SG-8018CE 4.0000M-TJHPA0 a safer choice. However, MEMS may offer advantages in shock resistance and smaller form factors, necessitating trade-off analysis based on application profile.

Why might a designer choose the SG-8018CE 4.0000M-TJHPA0 over a lower-cost RC oscillator despite its higher unit price, and what hidden costs does this decision avoid?: Although the SG-8018CE 4.0000M-TJHPA0 carries a premium over RC-based alternatives, its ±50 ppm stability and wide voltage tolerance eliminate the need for redundant timing validation, calibration routines, or watchdog resets caused by clock drift. In networked devices where packet collisions due to timing skew result in retransmissions, the extra cents per unit translate into significant throughput gains. Moreover, RC oscillators often require external tuning components or fail early in temperature extremes, increasing field returns and warranty claims. Over the product lifecycle, the SG-8018CE reduces support overhead and enhances brand reliability, making it economically justified in systems where availability and uptime outweigh capex savings.

How does the package height of the SG-8018CE 4.0000M-TJHPA0 influence placement in multi-layer PCBs with limited vertical clearance, and what assembly challenges arise?: At 1.20 mm seated height, the SG-8018CE 4.0000M-TJHPA0 fits within standard SMT assembly tolerances and is compatible with automated pick-and-place machines used in high-volume production. However, in ultra-thin wearable devices or stacked module designs, even this dimension may restrict component stacking. Assembly teams must ensure nozzle suction forces do not displace the delicate crystal structure during placement. Reflow profiles should follow JEDEC guidelines with peak temperatures below 260°C to prevent stress-induced frequency shift. Additionally, optical inspection is recommended post-reflow to detect tombstoning or skew, which could compromise electrical contact and long-term mechanical integrity.

What considerations apply when sourcing the SG-8018CE 4.0000M-TJHPA0 through different distributors, and how does lead time variability impact production planning?: Availability of the SG-8018CE 4.0000M-TJHPA0 varies across regional distributors due to EPSON’s manufacturing allocation policies, with some channels offering tape-and-reel packaging ideal for automated assembly while others stock loose parts for prototyping. Long lead times—sometimes exceeding 12 weeks—can disrupt just-in-time manufacturing schedules unless forecast commitments are made early. Engineers should verify minimum order quantities (MOQs) and negotiate supply agreements for critical programs. Dual-sourcing with functionally equivalent parts from other crystal oscillator vendors mitigates risk, though interchangeability must be validated for enable logic polarity and output slew rate. Proactive engagement with authorized distributors ensures visibility into future allocations and helps secure capacity during market shortages.

How does the enable/disable pin interact with microcontroller power management units, and what pitfalls exist in firmware implementation?: The enable/disable pin of the SG-8018CE 4.0000M-TJHPA0 accepts active-high or active-low logic depending on configuration, requiring firmware to assert the correct polarity during initialization. Misconfiguration leads to uncontrolled oscillation or complete silence. Additionally, toggling the enable line too rapidly can cause excessive inrush current or latch-up if not debounced in hardware (e.g., via RC filter). Firmware must also respect the 1 ms wake-up delay before relying on the clock signal for time-sensitive operations. Failure to do so results in missed deadlines, corrupted data, or system hangs. Best practice involves treating the oscillator as a shared resource with mutual exclusion in multithreaded environments to prevent race conditions during mode switches.

Parts with Similar Specifications

The three parts on the right have similar specifications to EPSON SG-8018CE 4.0000M-TJHPA0

Product Attribute
Part Number	SG-8018CE 4.0000M-TJHPA3	SG-8018CE 4.0070M-TJHPA0	SG-8018CE 4.0000M-TJHSA0	SG-8018CE 4.0096M-TJHPA0
Manufacturer	EPSON	EPSON	EPSON	EPSON
Current - Supply (Max)	-	-	-	-
Frequency Stability	-	-	-	-
Type	-	-	-	-
Package / Case	-	196-LFBGA	16-DIP (0.300', 7.62mm)	64-VFQFN Exposed Pad
Series	-	-	-	-
Base Resonator	-	-	-	-
Mounting Type	-	Surface Mount	Through Hole	Surface Mount
Size / Dimension	-	-	-	-
Ratings	-	-	-	-
Package	-	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Frequency	-	-	-	-
Operating Temperature	-	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C
Current - Supply (Disable) (Max)	-	-	-	-
Voltage - Supply	-	-	-	-
Height - Seated (Max)	-	-	-	-
Output	-	-	-	-
Absolute Pull Range (APR)	-	-	-	-
Function	-	-	-	-
Spread Spectrum Bandwidth	-	-	-	-

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The FPGA works properly and all functions operate as expected. Documentation required some additional research, but overall it is a usable device for smaller signal processing projects.
Nath***oleman

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Used this sensor component in an industrial automation setup. Detection accuracy was consistent and installation was straightforward.
Emil***rperTech

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Works exactly as described. I used it as a USB-to-SPI bridge in a small MCU development project and communication was stable from the first setup.
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America	United States	5
America	Brazil	7
Europe	Germany	5
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Oceania	Australia	6
Oceania	New Zealand	5
Asia	India	4
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Shipment charges(KG)	Reference DHL(USD$)
0.00kg-1.00kg	USD$30.00 - USD$60.00
1.00kg-2.00kg	USD$40.00 - USD$80.00
2.00kg-3.00kg	USD$50.00 - USD$100.00

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