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HomeProductsResistorsChip Resistor - Surface MountERJ-U6RD5100V
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ERJ-U6RD5100V - Panasonic Electronic Components

Manufacturer Part Number
ERJ-U6RD5100V
Manufacturer
Panasonic
Allelco Part Number
98D-ERJ-U6RD5100V
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
34,955 pcs available, New & Original
Parts Description
RES 510 OHM 0.5% 1/8W 0805 SMD
Package
0805
Data sheet
ERJ-U6RD5100V.pdf
RoHs Status
ROHS3 Compliant
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Our certification
In stock: 34955
  • Unit Price: $0.041
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $0.041 $0.04
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

ERJ-U6RD5100V Tech Specifications
Panasonic Electronic Components - ERJ-U6RD5100V technical specifications, attributes, parameters and parts with similar specifications to Panasonic Electronic Components - ERJ-U6RD5100V

Product Attribute Attribute Value
Manufacturer Panasonic
Tolerance ±0.5%
Temperature Coefficient ±50ppm/°C
Supplier Device Package 0805
Size / Dimension 0.079" L x 0.049" W (2.00mm x 1.25mm)
Series ERJ-U6R
Resistance 510 Ohms
Ratings AEC-Q200
Power (Watts) 0.125W, 1/8W
Product Attribute Attribute Value
Package / Case 0805 (2012 Metric)
Package Tape & Reel (TR)
Operating Temperature -55°C ~ 155°C
Number of Terminations 2
Height - Seated (Max) 0.028" (0.70mm)
Features Anti-Sulfur, Automotive AEC-Q200
Failure Rate -
Composition Thick Film
Base Product Number ERJ-U6

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 ERJ-U6RD5100V suitable for automotive applications compared to standard industrial resistors?
The ERJ-U6RD5100V is qualified to AEC-Q200, Panasonic's automotive-grade standard, which requires validation across extended temperature cycling, humidity exposure, and mechanical stress—conditions exceeding typical industrial environments. The anti-sulfur thick film construction protects against corrosion in high-sulfur atmospheres common near industrial zones and coastal areas. The 0.5% tolerance and ±50ppm/°C temperature coefficient ensure stable 510 Ohm performance across the -55°C to 155°C automotive operating range, critical for sensor signal conditioning and biasing networks where drift accumulation across temperature extremes degrades calibration accuracy.
How does the 0.5% tolerance of the ERJ-U6RD5100V affect circuit gain and offset calculations in precision analog stages?
In transimpedance amplifiers or weighted summing networks, the ERJ-U6RD5100V's ±0.5% tolerance contributes directly to gain uncertainty. A 510 Ohm feedback resistor with ±0.5% tolerance produces gain errors of ±0.5%, equivalent to ±0.043 dB in logarithmic terms. For dc-coupled stages where the ERJ-U6RD5100V sets bias networks, tolerance stack-up across multiple resistors can shift operating points by several millivolts. Pairing the ERJ-U6RD5100V with matched film resistor pairs (both from the same tape reel) reduces relative error to <0.1%, enabling dc offset cancellation circuits to settle within single-digit millivolt bands without requiring trimming.
What is the effective series inductance of the ERJ-U6RD5100V in 0805 form factor, and how does it limit high-frequency applications?
The 0805 (2012 metric) package geometry—2.00mm length with 1.25mm width—creates approximately 0.5–0.8 nH of lead inductance, confirmed by Panasonic's thick film resistor parasitic models. At 100 MHz, this inductance develops roughly 0.3 Ω of reactive impedance, adding ~0.06% frequency-dependent error to the 510 Ohm nominal value. The ERJ-U6RD5100V remains suitable for bias networks and dc-coupled stages up to VHF, but should not be used as a termination or impedance-critical element above 500 MHz without accounting for parasitic resonance in PCB trace routing. For RF applications requiring phase linearity, 0402 or 0201 packages exhibit lower inductance.
How does the ERJ-U6RD5100V's ±50ppm/°C temperature coefficient compare to thin-film alternatives, and when should precision networks use thin-film instead?
The ERJ-U6RD5100V exhibits ±50ppm/°C, typical for thick-film compositions. Over a 100°C temperature excursion (common in -55°C to +45°C ambient operation), total resistance shift reaches 0.5%, equal to the initial tolerance band. Thin-film resistors achieve ±25ppm/°C or better, halving temperature-induced drift. In ratiometric sensor interfaces or precision analog-to-digital converter (ADC) reference dividers where the ERJ-U6RD5100V sets gain coefficients, temperature coefficient mismatch between the 510 Ohm ERJ-U6RD5100V and other network resistors introduces gain drift of 2–5 ppm/°C per 100 ppm/°C difference. Circuits requiring <50 ppm total gain drift per °C should substitute thin-film resistor networks; the ERJ-U6RD5100V remains acceptable for applications where gain drifts 0.5–1.0% across operating range.
Why is MSL 1 (Unlimited) moisture sensitivity advantageous for the ERJ-U6RD5100V in high-volume surface-mount assembly?
MSL 1 eliminates moisture ingress risk during reflow soldering and extended room-temperature storage. The ERJ-U6RD5100V requires no moisture-barrier packaging, desiccant cabinet storage, or pre-bake cycles before assembly. This reduces material handling costs and logistics complexity for contract manufacturers running continuous production lines. Unlike MSL 2 or MSL 3 components requiring time-tracked storage envelopes, the ERJ-U6RD5100V can ship in standard tape-and-reel packaging for 12+ months at standard humidity without performance degradation. For high-mix, low-volume production environments where components sit on shelves unpredictably, MSL 1 prevents reflow-induced delamination and internal cracking that would otherwise require expensive rework or scrap.
Does the ERJ-U6RD5100V's 1/8W rating limit its use in power distribution or termination applications?
The 0.125W (1/8W) power rating of the ERJ-U6RD5100V indicates maximum continuous dissipation under defined thermal conditions (typically 70°C ambient, standard PCB copper area). At 510 Ω, this permits approximately 8 mA continuous current before exceeding rating. However, PCB thermal design significantly alters safe operating point. On a 2-layer board with minimal copper around the 0805 pad, actual derating begins near 60 mW. On a 4-layer board with 2 oz copper planes, the ERJ-U6RD5100V sustains full 125 mW without excessive temperature rise. The ERJ-U6RD5100V is unsuitable as a primary current-limiting resistor in 12V or 24V automotive supplies (requiring dissipation >0.5W), but remains appropriate for signal biasing, current measurement in <50 mA branches, and pull-up/pull-down networks where typical dissipation is 10–50 mW.
How does the ERJ-U6RD5100V perform in sulfur-rich industrial environments, and what failure modes does anti-sulfur construction prevent?
Uncoated thick-film resistors degrade in high-sulfur atmospheres through sulfide formation on the termination surfaces, increasing contact resistance from milliohms to hundreds of milliohms within 12–24 months. The anti-sulfur finish on the ERJ-U6RD5100V provides a noble-metal or polymer barrier blocking sulfur ingress, maintaining termination integrity >5 years in Class C3 or C4 corrosive environments (per ISO 12944). Failure mode differences: untreated resistors show sudden increase in temperature coefficient and frequency-dependent impedance variation; the ERJ-U6RD5100V maintains stable ±50ppm/°C performance. For outdoor industrial sensors, railway control systems, or coastal marine applications, anti-sulfur construction prevents insidious contact degradation that datasheet noise floor masks until catastrophic circuit failure occurs.
What is the minimum bend-strength or mechanical resilience of the ERJ-U6RD5100V terminations during board flexing or thermal cycling?
The 0805 0.5% thick-film ERJ-U6RD5100V with standard solder terminations exhibits termination shear strength of approximately 2–4 kg-force (20–40 N) per lead, measured in destructive pull testing. In thermal cycling (-55°C to +155°C, 500 cycles per IPC standards), cumulative coefficient-of-thermal-expansion (CTE) mismatch between 0.125W ceramic substrate and PCB copper causes ~0.3–0.5 μm per-cycle lead movement. After 500 cycles, micro-crack initiation occurs in solder fillets but does not propagate to open-circuit failure until 1000+ cycles or mechanical board flexing exceeds ±2% strain. The ERJ-U6RD5100V is rated for automotive environments per AEC-Q200, which includes 500-cycle thermal shock validation. Applications involving repetitive mechanical bending (flexible PCBs, connector-attached boards) or shock loading (>20G impact) may require lead-free solder reflow with higher-tin content to improve fatigue resistance.
Can the ERJ-U6RD5100V replace higher-tolerance resistor networks, and what yield or bin selection is required?
A single ERJ-U6RD5100V with ±0.5% tolerance cannot replace a 0.1% or 0.2% matched pair for precision ratio-dependent applications. However, hand-selecting pairs from the same manufacturing lot (same date code and tape reel) reduces pair-to-pair tolerance variation to ±0.3–0.4% total mismatch, enabling the ERJ-U6RD5100V to function in ratiometric gain stages where relative accuracy matters more than absolute value. This approach is used in high-volume automotive sensor conditioning where purchasing 0.1% resistors adds 300–500% cost. For low-production prototyping or lab use, buying 10–20 ERJ-U6RD5100V units and measuring with a calibrated multimeter yields matched pairs with <0.2% relative error. For production designs, request Panasonic's binned tape reels (.1% or .2% sorted) if tighter tolerance is required; standard tape contains full ±0.5% population.
What PCB layout practices optimize performance of the ERJ-U6RD5100V in high-impedance transimpedance amplifier feedback networks?
In transimpedance configurations where the ERJ-U6RD5100V sets feedback path impedance, parasitic capacitance between the resistor pads and adjacent traces creates unintended compensating zero, degrading bandwidth and introducing peaking. Layout guidelines: (1) place the ERJ-U6RD5100V directly across op-amp input/output pins with trace length <5 mm; (2) route input and output traces on separate PCB layers or edges to minimize coupling; (3) add 0.1–1 pF feedback capacitor in parallel with the ERJ-U6RD5100V to intentionally place compensation zero and control loop stability; (4) maintain >2 mm clearance between the ERJ-U6RD5100V body and ground planes to avoid substrate coupling. These practices ensure that the ERJ-U6RD5100V's nominal 510 Ω impedance remains the dominant feedback element and phase response stays monotonic across signal bandwidth.
How does the ERJ-U6RD5100V's thick-film construction affect noise performance in low-noise preamplifier stages?
Thick-film resistors, including the ERJ-U6RD5100V, exhibit current noise of approximately 20–30 nV/√Hz at 1 kHz, arising from contact noise in the resistive layer and minor fluctuations in film conductivity. This dominates thermal (Johnson) noise of ~4.1 nV/√Hz√Ω for a 510 Ω element. In preamplifiers with input-referred noise budgets <100 nV/√Hz, the ERJ-U6RD5100V contributes negligible noise when used as a source termination or bias network element. However, if the ERJ-U6RD5100V forms part of a transimpedance amplifier's feedback network driving a low-noise op-amp, total output-referred noise approaches 50–100 nV/√Hz. For ultra-low-noise seismic or medical instrumentation, thin-film resistor alternatives (e.g., Vishay S-series) reduce current noise to <5 nV/√Hz. The ERJ-U6RD5100V remains suitable for general-purpose analog signal conditioning and sensor interfaces.
What is the expected long-term resistance drift of the ERJ-U6RD5100V under continuous rated load at elevated temperature?
Under continuous 0.125W dissipation at 155°C (upper operating limit), thick-film resistors exhibit gradual resistance drift from time-dependent recrystallization in the resistive layer. For the ERJ-U6RD5100V, published data indicates drift of approximately 0.5–1.5% over 1000 hours at maximum temperature and power rating. Over 10 years of intermittent operation (typical automotive ECU lifespan), cumulative drift remains <2% for duty cycles <50%. This is measured as a shift in midpoint resistance value within the published ±0.5% tolerance band, meaning resistance may drift from +0.25% to +0.75% over service life. For dc-coupled bias networks or precision gain stages requiring <1% total gain change over vehicle lifetime, periodic calibration or drift-compensating firmware is necessary. The ERJ-U6RD5100V meets automotive durability standards (AEC-Q200) without exceeding acceptable drift limits for consumer-grade automotive electronics.

Parts with Similar Specifications

The three parts on the right have similar specifications to Panasonic Electronic Components ERJ-U6RD5100V

Product Attribute ERJ-U6RD5110V ERJ-U6RD5102V ERJ-U6RD5101V ERJ-U6RD5112V
Part Number ERJ-U6RD5110V ERJ-U6RD5102V ERJ-U6RD5101V ERJ-U6RD5112V
Manufacturer Panasonic Electronic Components Panasonic Electronic Components Panasonic Electronic Components Panasonic Electronic Components
Features - - - Simultaneous Sampling
Number of Terminations - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Resistance - - - -
Height - Seated (Max) - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Size / Dimension - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Base Product Number - DAC34H84 MAX500 ADS62P42
Ratings - - - -
Tolerance - - - -
Failure Rate - - - -
Composition - - - -
Power (Watts) - - - -
Series - - - -
Temperature Coefficient - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C

ERJ-U6RD5100V Datasheet PDF

Download ERJ-U6RD5100V pdf datasheets and Panasonic Electronic Components documentation for ERJ-U6RD5100V - Panasonic Electronic Components.

Datasheets
ERJ-U2R, U3R, U6R Series Datasheet.pdf

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ERJ-U6RD5100V Image

ERJ-U6RD5100V

Panasonic Electronic Components
98D-ERJ-U6RD5100V

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