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HomeProductsResistorsChip Resistor - Surface MountRCS1608F2154CS
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RCS1608F2154CS - Samsung Electro-Mechanics

Manufacturer Part Number
RCS1608F2154CS
Manufacturer
Samsung Electro-Mechanics
Allelco Part Number
98D-RCS1608F2154CS
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
37,135 pcs available, New & Original
Parts Description
RES 2.15M OHM 1% 1/10W 0603
Package
0603
Data sheet
RCS1608F2154CS.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 37135
  • Unit Price: $0.004
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.004 $0.00
200+ $0.001 $0.20
500+ $0.001 $0.50
1000+ $0.001 $1.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

RCS1608F2154CS Tech Specifications
Samsung Electro-Mechanics - RCS1608F2154CS technical specifications, attributes, parameters and parts with similar specifications to Samsung Electro-Mechanics - RCS1608F2154CS

Product Attribute Attribute Value
Manufacturer Samsung Electro-Mechanics
Tolerance ±1%
Temperature Coefficient ±100ppm/°C
Supplier Device Package 0603
Size / Dimension 0.063" L x 0.031" W (1.60mm x 0.80mm)
Series RCS
Resistance 2.15 MOhms
Power (Watts) 0.1W, 1/10W
Product Attribute Attribute Value
Package / Case 0603 (1608 Metric)
Package Tape & Reel (TR)
Operating Temperature -55°C ~ 155°C
Number of Terminations 2
Height - Seated (Max) 0.022" (0.55mm)
Features Anti-Sulfur, Moisture Resistant
Failure Rate -
Composition Thick Film

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8533.21.0030

Frequently Asked Questions(FAQ)

What makes the RCS1608F2154CS suitable for high-impedance measurement circuits compared to standard thin-film resistors?
The RCS1608F2154CS is a 2.15 MOhm thick-film resistor with ±1% tolerance and ±100ppm/°C temperature coefficient, making it well-suited for precision high-impedance applications where leakage and drift are concerns. Thick-film construction in the RCS1608F2154CS provides better frequency stability than thin-film alternatives in the megaohm range, while the ±1% tolerance ensures predictable impedance matching in transimpedance amplifier front-ends, photodiode readout circuits, and high-impedance sensor interfaces. The anti-sulfur and moisture-resistant coating on the RCS1608F2154CS reduces long-term impedance shift in corrosive or humid environments, critical for medical sensors and industrial monitoring where impedance stability over years of operation affects measurement accuracy.
How does the 0.1W power rating of the RCS1608F2154CS constrain circuit design for high-voltage applications?
The RCS1608F2154CS dissipates 0.1W maximum, which limits safe operating voltage through the relationship P = V²/R. At the rated 2.15 MOhm resistance, the RCS1608F2154CS can safely handle approximately 465V DC before thermal runaway, assuming ambient operation near 25°C. However, in real designs, derating is necessary: at 155°C upper operating temperature, the RCS1608F2154CS dissipation headroom decreases significantly. For high-voltage bias networks in medical ultrasound or industrial HVAC applications, engineers typically cascade multiple RCS1608F2154CS resistors in series rather than use a single unit, trading component count for predictable thermal behavior and safety margins. The 0.1W limit also means the RCS1608F2154CS is unsuitable for active current-limiting roles; its use is confined to passive biasing, voltage division, and impedance termination.
Can the RCS1608F2154CS maintain ±1% tolerance across the full -55°C to 155°C operating range without requiring trimming?
The RCS1608F2154CS nominal tolerance is ±1% at 25°C, but temperature coefficient of ±100ppm/°C means resistance shifts with thermal cycling. Over the -55°C to 155°C span (210°C range), the RCS1608F2154CS can drift approximately ±2.1%, pushing total tolerance stack to roughly ±3.1% in worst-case scenarios. For precision gain-setting resistors in instrumentation amplifiers or reference dividers, this drift is often acceptable, but designs requiring tighter tolerance bands must either use trimmer potentiometers alongside the RCS1608F2154CS, implement digital compensation in the signal chain, or select resistor networks with integrated temperature tracking. In low-temperature aerospace applications (-55°C), the RCS1608F2154CS exhibits maximum positive drift, which should be factored into bias network calculations for temperature-compensated Zener references or ratiometric dividers.
What is the practical difference between the RCS1608F2154CS anti-sulfur coating and standard thick-film resistors in sulfur-rich industrial environments?
Standard thick-film resistors without anti-sulfur treatment degrade rapidly in environments with hydrogen sulfide, mercaptan, or sulfur dioxide exposure—common in petrochemical plants, wastewater treatment, and geothermal applications. The RCS1608F2154CS anti-sulfur coating creates a barrier that significantly extends service life by preventing sulfur compounds from corroding the thick-film resistive element and termination pads. Without this protection, uncoated high-value resistors like a 2.15 MOhm unit experience accelerated impedance drift and occasional open-circuit failures within months. The RCS1608F2154CS moisture-resistant coating compounds this benefit, as humid sulfur-bearing environments accelerate both chemical corrosion and electrochemical migration. For downhole sensors, landfill monitoring systems, or chemical processing control boards, specifying the RCS1608F2154CS versus cost-optimized alternatives can extend field reliability by 5–10 years.
How should the RCS1608F2154CS be terminated in a PCB design to minimize parasitic capacitance in high-frequency impedance networks?
The RCS1608F2154CS 0603 package (1.60mm × 0.80mm) has pad spacing that creates inherent parasitic capacitance, typically 0.3–0.5pF between terminations. In transimpedance amplifier input networks or precision oscillator biasing circuits, this parasitic capacitance resonates with the RCS1608F2154CS 2.15 MOhm impedance, creating frequency-dependent behavior above 100kHz. To minimize this effect, the RCS1608F2154CS should be mounted with pads as close as possible to the op-amp input node (avoiding stub traces), and ground plane separation beneath the component kept tight. For extremely sensitive applications above 1MHz, designers sometimes parallel the RCS1608F2154CS with a small capacitor (10–100pF) to control the impedance trajectory rather than rely on the uncompensated parasitic network. PCB routing should avoid routing high-frequency signal traces perpendicular to the RCS1608F2154CS footprint to prevent coupling.
Is the RCS1608F2154CS suitable as a pullup resistor in digital logic circuits, and what are the trade-offs versus lower-value alternatives?
The RCS1608F2154CS 2.15 MOhm value is far too high for standard digital pullup roles, where 1–100 kOhm is conventional. However, the RCS1608F2154CS does serve specialized low-power applications: battery-backed systems where active current draw must be minimal (microcontroller standby modes), high-impedance sensor interfaces where leakage is a design priority, or analog multiplexer switches where crosstalk and charge injection are concerns. If a designer is considering the RCS1608F2154CS for logic pullup, the real requirement is likely different—perhaps ultra-low quiescent current or impedance matching in a biasing network rather than standard logic switching. The RCS1608F2154CS would create unacceptable propagation delays and noise margins in standard CMOS logic due to RC time constants in the millisecond range.
How does MSL 1 rating on the RCS1608F2154CS affect assembly and storage procedures?
The RCS1608F2154CS carries Moisture Sensitivity Level (MSL) 1, meaning unlimited shelf life without special moisture-barrier packaging. Unlike MSL 3–4 components that require bake-out after moisture exposure, the RCS1608F2154CS can be stored in standard warehouse conditions indefinitely. This simplifies supply chain logistics: distributors need not track reflow windows post-opening, and manufacturers can maintain higher inventory without obsolescence risk. The RCS1608F2154CS anti-sulfur and moisture-resistant coating contributes to this robust classification—the component tolerates moisture absorption without impedance degradation or solderability issues. For contract manufacturers managing high-volume builds with varying lead times, the RCS1608F2154CS avoids the compliance overhead of humidity controls and reflow-window tracking that plague lead-free, moisture-sensitive components.
What happens to the RCS1608F2154CS impedance if it experiences transient overvoltage, and is recovery possible?
Transient overvoltage (ESD, inductive spike, or lightning surge) applied to the RCS1608F2154CS can cause localized thermal damage within the thick-film resistive element, resulting in permanent impedance shift or catastrophic open-circuit failure. Unlike metal-film resistors, which fail more predictably, thick-film resistors like the RCS1608F2154CS exhibit non-linear breakdown: initial damage may appear as a small resistance increase (5–10%), but further overstress can cause sudden open circuits with no recovery. The RCS1608F2154CS 0603 package offers no inherent overvoltage protection, so designs requiring surge immunity must add external protection: transient suppressors, series inductors, or voltage clamps upstream of the RCS1608F2154CS. Once thermal damage occurs in the RCS1608F2154CS, the component cannot be reverse-engineered or repaired—replacement is required.
How does the RCS1608F2154CS compare to thin-film 0603 resistors in terms of frequency response and noise performance?
The RCS1608F2154CS thick-film construction has higher frequency-dependent impedance variation and broader noise spectrum than thin-film 0603 equivalents. Thin-film resistors maintain resistance flatness to GHz frequencies and exhibit lower 1/f noise, making them preferable for precision audio, RF, and low-noise analog circuits. However, the RCS1608F2154CS thick-film approach offers better surge handling, sulfur resistance, and cost advantages in megaohm values where thin-film manufacturing becomes economically disadvantageous. For a 2.15 MOhm divider in a precision data-acquisition front-end operating below 100kHz, the RCS1608F2154CS noise and stability are acceptable; if the circuit operates in the MHz range or requires audio-grade noise performance, thin-film alternatives should be evaluated despite higher cost and longer lead times.
Can the RCS1608F2154CS be used in direct-current biasing networks for analog-to-digital converter input termination?
Yes, the RCS1608F2154CS is well-suited for ADC input biasing networks where high impedance and low leakage are requirements. The RCS1608F2154CS 2.15 MOhm value appears in common transimpedance configurations, photodiode amplifiers, and ratiometric dividers that set ADC reference levels. The ±1% tolerance on the RCS1608F2154CS ensures predictable gain and offset in precision measurement systems. However, the ±100ppm/°C temperature coefficient means that biasing networks using the RCS1608F2154CS will exhibit temperature-dependent drift in ADC readings unless compensated. In medical and automotive applications, dual-resistor networks (both using RCS1608F2154CS with matched temperature coefficients) are often preferred over single reference designs to achieve ratiometric cancellation of thermal drift.
What surface-mounting challenges should a PCB assembly vendor expect when handling the RCS1608F2154CS in high-volume production?
The RCS1608F2154CS 0603 package is one of the smallest standard passive formats, requiring precise solder-paste stencil design and reflow profile tuning to avoid tombstoning (one end unsoldered) or solder bridging. The RCS1608F2154CS termination pads are nickel-plated, which can oxidize if storage humidity exceeds 80% without controlled desiccant conditions—though the MSL 1 rating mitigates this risk compared to lead-free components. Automated assembly equipment must be calibrated for light component mass; placement speeds for the RCS1608F2154CS are typically conservative to prevent vibration-induced misalignment. Inspection systems must distinguish the RCS1608F2154CS from visually similar components, and test continuity and resistance value post-assembly to catch placement errors early.
How should high-frequency leakage current of the RCS1608F2154CS be characterized in precision sensor interface design?
Although the RCS1608F2154CS is specified for DC leakage in standard datasheet tables, AC leakage becomes significant when the component operates in AC-coupled high-impedance networks or precision lock-in amplifier front-ends. The RCS1608F2154CS thick-film construction has inherent parallel capacitance (0.3–0.5pF) and dielectric absorption effects that modulate impedance at AC signal frequencies. In photodiode transimpedance amplifiers, the RCS1608F2154CS parallel impedance appears as frequency-dependent gain variation, potentially affecting measurement linearity above 100kHz. Designers can quantify this effect by measuring or modeling the RCS1608F2154CS parallel RC network and comparing it against expected amplifier noise and bandwidth requirements. For ultra-sensitive applications, thin-film or wire-wound alternatives with lower dielectric absorption may be necessary.
What RoHS and REACH compliance considerations apply to the RCS1608F2154CS for automotive and medical device qualification?
The RCS1608F2154CS is RoHS3 compliant and REACH unaffected, meeting automotive (AEC-Q200) and medical device (ISO 13485) supply-chain requirements without requiring restricted substance declarations or exemption requests. The ECCN classification (EAR99) means the RCS1608F2154CS is not export-controlled, simplifying global distribution and reducing administrative complexity for multinational manufacturers. For medical implants and long-term use devices, the RCS1608F2154CS compliance status is documented and stable—no future restrictions are anticipated based on current regulatory trajectories. However, manufacturers must still verify that PCB laminates, solder, and flux materials paired with the RCS1608F2154CS also meet RoHS and REACH thresholds to achieve full device certification.

Parts with Similar Specifications

The three parts on the right have similar specifications to Samsung Electro-Mechanics RCS1608F2154CS

Product Attribute RCS1608F2153CS RCS1608F2150CS RCS1608F2152CS RCS1608F2151CS
Part Number RCS1608F2153CS RCS1608F2150CS RCS1608F2152CS RCS1608F2151CS
Manufacturer Samsung Electro-Mechanics Samsung Electro-Mechanics Samsung Electro-Mechanics Samsung Electro-Mechanics
Resistance - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Size / Dimension - - - -
Power (Watts) - - - -
Temperature Coefficient - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Height - Seated (Max) - - - -
Features - - - Simultaneous Sampling
Series - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Tolerance - - - -
Number of Terminations - - - -
Composition - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Failure Rate - - - -

RCS1608F2154CS Datasheet PDF

Download RCS1608F2154CS pdf datasheets and Samsung Electro-Mechanics documentation for RCS1608F2154CS - Samsung Electro-Mechanics.

Datasheets
RCS Series Datasheet.pdf Thick-Film Chip Resistor Catalog.pdf

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Samsung Electro-Mechanics

RCS1608F2154CS

Samsung Electro-Mechanics
98D-RCS1608F2154CS

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