M55342E12B15B8RWS - 15.8kΩ 0.1% 0.1W MIL-PRF-55342 Chip Resistor
MPN: M55342E12B15B8RWS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.2 | $162.00 |
| 100 | $13.85 | $1,385.00 |
| 500 | $11.4 | $5,700.00 |
| 1,000 | $9.95 | $9,950.00 |
M55342E12B15B8RWS Overview
A thin film chip resistor is a passive component whose resistive element is a sputtered metal-alloy film (typically nickel-chromium with tantalum nitride variants) deposited onto a ceramic substrate and protected by a passivation layer, then laser- or photo-trimmed to a precise value. Within the resistor taxonomy, thin film parts sit above thick film chip resistors in precision and stability, and below precision wirewound and foil technologies in absolute noise and TCR. They are the dominant choice for surface-mount precision analog signal chains where 0.1% tolerance, low noise, and predictable temperature behavior are required.
Key differentiating specifications for this part include the ±0.1% absolute tolerance (vs the ±1% to ±5% typical of commodity thick-film 0603 resistors), the ±25 ppm/°C TCR that bounds resistance drift across -55 °C to +150 °C military operating range, and the wraparound sputtered terminations that provide excellent solder-joint adhesion and dimensional uniformity under thermal cycling. The non-inductive construction avoids parasitic reactance that can degrade performance at high frequencies or in fast-pulse applications.
Architecturally, the M55342E12B15B8RWS uses a nickel-chromium resistive film on an alumina substrate, laser-trimmed under test to land on the 15.8 kΩ value, with sputtered wraparound nickel-barrier and tin-lead (or lead-free matte-tin) outer terminations. The "T" level ER screening per MIL-PRF-55342 imposes 100% power conditioning, 100% thermal shock, group A and group B lot acceptance testing, which is why these parts carry "R" in the part number and command a significant price premium over commercial equivalents.
Typical applications include precision analog signal conditioning in avionics and military radio systems, military-grade power supply feedback networks, instrumentation amplifier gain-setting resistors, ADC and DAC reference dividers in defense electronics, and any high-reliability industrial or aerospace design requiring MIL-PRF-55342 QPL sourcing. When designing with this part, observe derating: at 70 °C the part is rated at full 0.1 W, but must be linearly derated to zero power at 150 °C per the military thermal model. Also verify that the soldering profile is compatible with the termination finish (W suffix indicates a specific packaging code; consult the datasheet for lead-free vs SnPb termination options).
Drop-in alternatives for M55342E12B15B8RWS — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
M55342E12B15B8RWI
✅ Drop-In📋 Reference alternative (not in catalog)
M55342E12B15B8RTS
✅ Drop-In📋 Reference alternative (not in catalog)
M55342E12B15B8R
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
M55342E12B15B8RT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
M55342E12B1501R
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
M55342E12B15B8RWS Maximum Ratings & Electrical Characteristics
| Resistance | 15.8 kOhms |
| Tolerance | ±0.1% |
| Power Rating | 0.1 W (1/10 W) |
| Temperature Coefficient (TCR) | ±25 ppm/°C |
| Package | 0603 (1608 Metric) |
| Mounting Type | Surface Mount |
| Resistor Technology | Thin Film, Non-Inductive |
| Military Specification | MIL-PRF-55342 "T" Level (Established Reliability) |
| Termination Style | Wraparound Sputtered |
| Operating Temperature Range | -55 °C to +150 °C |
| Construction | Non-Inductive |
| Series | RM0603 (MIL-PRF-55342 QPL) |
| Manufacturer | Vishay Dale Thin Film |
| Failure Rate Level | R (per MIL-PRF-55342, established reliability) |
| Compliance | RoHS - per Vishay product page; SnPb vs lead-free depends on termination finish |
M55342E12B15B8RWS Pin Configuration
| Pin 1 | Termination A — Sputtered wraparound termination (solder pad 1) |
| Pin 2 | Termination B — Sputtered wraparound termination (solder pad 2) |
Typical Applications
M55342E12B15B8RWS is suitable for 6 applications: Military Avionics Signal Conditioning, Precision ADC/DAC Reference Dividers, Defense Radio Receiver Front-Ends, Aerospace Flight Control Sensors, Industrial High-Reliability Process Control, Medical Diagnostic Imaging Equipment.
Military Avionics Signal Conditioning
The M55342E12B15B8RWS fits military avionics signal conditioning because it carries MIL-PRF-55342 "T" level established-reliability qualification with ±0.1% tolerance and ±25 ppm/°C TCR, meeting the precision and traceability requirements of MIL-HDBK-454 and MIL-STD-704 avionics environments. With 15.8 kΩ and 0.1 W power, it serves as a gain-setting or feedback resistor in instrumentation amplifiers and active filters operating across the -55 °C to +150 °C range. The non-inductive thin-film construction avoids parasitic reactance that could distort fast analog pulses from RF or radar front-ends. Designers can use it confidently in DoD and avionics programs that mandate QPL sourcing.
Recommended
Precision ADC/DAC Reference Dividers
In ADC and DAC reference voltage dividers, the M55342E12B15B8RWS provides the stable, traceable resistance needed to scale a 5 V or 10 V reference to the full-scale input of precision converters. Its ±25 ppm/°C TCR ensures the divider ratio does not drift with temperature, preserving converter linearity over the military operating range. The 0.1% tolerance eliminates the need for laser-trimming on the PCB, reducing manufacturing cost in defense electronics. Paired with a low-drift reference such as the AD588, this resistor enables 16-bit and higher converter systems in defense and aerospace signal chains.
Recommended
Defense Radio Receiver Front-Ends
Defense radio receiver front-ends demand precision thin-film resistors for matching networks, AGC loops, and IF amplifier gain blocks. The M55342E12B15B8RWS fits here because of its non-inductive construction (preserving signal integrity at HF/VHF) and its MIL-PRF-55342 traceability, which is required for radios built to MIL-STD-188 and similar military communications specs. The 15.8 kΩ value is commonly used in AGC detector loads and IF amplifier feedback networks. At 0.1 W the part handles typical IF signal levels without self-heating drift, and the ±0.1% tolerance keeps channel-to-channel gain matching tight in multi-channel receivers.
Recommended
Aerospace Flight Control Sensors
Aerospace flight control sensors — including inertial measurement units, pressure transducers, and rate gyros — use precision thin-film resistors in bridge completion and signal amplification paths. The M55342E12B15B8RWS fits these applications because its MIL-PRF-55342 "T" level qualification provides the documentation and lot traceability that aerospace DO-254/DO-178 design assurance programs require. With ±0.1% tolerance and ±25 ppm/°C TCR, it holds bridge balance and amplifier gain across the flight thermal envelope. The 0603 (1608 metric) package keeps board density high for compact sensor modules.
Recommended
Industrial High-Reliability Process Control
In industrial high-reliability process control — refinery DCS, nuclear plant I&C, and rail signaling — designers use MIL-PRF-55342 thin-film resistors where commercial parts do not meet long-term stability requirements. The M55342E12B15B8RWS provides 15.8 kΩ at ±0.1% tolerance with proven reliability via the "T" level screening. In 4-20 mA loop transmitters, isolation amplifiers, and safety-instrumented function (SIF) circuits, the resistor's tight tolerance supports IEC 61508 SIL-2/SIL-3 calibration budgets. Its wide -55 °C to +150 °C range tolerates unconditioned outdoor plant cabinets.
Recommended
Medical Diagnostic Imaging Equipment
Medical diagnostic imaging equipment such as CT scanners, MRI RF receivers, and ultrasound beamformers require precision resistors in low-noise analog signal paths. The M55342E12B15B8RWS fits MRI receiver pre-amplifier feedback and CT detector channel gain-setting positions because of its low noise (thin-film non-inductive) and ±0.1% tolerance. While not FDA-qualified, the MIL-PRF-55342 traceability is widely accepted in medical imaging designs where component lot history is required for FDA design history file (DHF) documentation. The 0603 package supports dense multi-element detector arrays.
Recommended
Recommended Products Summary
Engineering reference data for M55342E12B15B8RWS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | M55342E12B15B8RWI | M55342E12B15B8RTS | M55342E12B15B8R | M55342E12B15B8RT |
|---|---|---|---|---|---|
| Brand | Vishay Intertechnology | Vishay Intertechnology - same | Vishay Intertechnology - same | Vishay Intertechnology - same | Vishay Intertechnology - same |
| Package | 0603 (1608 Metric) | 0603 (1608 Metric) - same | 0603 (1608 Metric) - same | 0603 (1608 Metric) - same | 0603 (1608 Metric) - same |
| Resistance | 15.8 kOhms | 15.8 kOhms | 15.8 kOhms | 15.8 kOhms | 15.8 kOhms |
| Tolerance | ±0.1% | ±0.1% | ±0.1% | ±0.1% | ±0.1% |
| Power Rating | 0.1 W | 0.1 W | 0.1 W | 0.1 W | 0.1 W |
| TCR | ±25 ppm/°C | ±25 ppm/°C | ±25 ppm/°C | ±25 ppm/°C | ±25 ppm/°C |
| Operating Temperature | -55 °C to +150 °C | -55 °C to +150 °C | -55 °C to +150 °C | -55 °C to +150 °C | -55 °C to +150 °C |
| MIL-PRF-55342 Level | "T" Level ER | "T" Level ER | "T" Level ER | "T" Level ER | "T" Level ER |
| Packaging/Termination Finish Code | W (per MIL code) | I (alternate termination) | TS (alternate packaging) | Generic | T (tape-and-reel) |
Key Differentiators
- MIL-PRF-55342 "T" Level Established Reliability screening (vs Commercial 0603 1% thin-film chip resistors)
- ±0.1% absolute tolerance vs ±1% commercial (vs Standard 1% thin-film 0603 chip resistor)
- ±25 ppm/°C TCR over full -55 °C to +150 °C military range (vs Commercial 0603 with ±100 to ±200 ppm/°C TCR)
Design Notes
Derate the 0.1 W rating linearly from 100% at +70 °C to 0% at +150 °C per the MIL-PRF-55342 thermal model. In a sealed enclosure with no airflow, the 0603 part can reach +95 °C with only 50 mW dissipation, so budget thermal headroom accordingly. Avoid placing the resistor adjacent to power devices, transformers, or other heat sources.
Use a land pattern per IPC-7351 nominal 0603 footprint: 0.85 mm x 0.95 mm pads with 0.40 mm gap. Do not use excessive solder paste volume — the 0603 chip can float on a solder fillet during reflow, shifting it off the pads. For hand prototyping or rework, use a fine-tip iron and 0.020" wire solder to avoid thermal-shocking the ceramic substrate.
Verify the trailing letter designation (W, I, T, S) matches your assembly process — these encode termination finish (matte tin vs SnPb) and packaging orientation (tape-and-reel vs bulk). Substituting a lead-free finish on a SnPb process (or vice versa) violates your assembly's RoHS / solder compatibility. Also confirm the resistor's value code from the datasheet, since the "B15B8" segment decodes differently from generic resistor marking schemes.
The non-inductive construction makes this part suitable for fast-pulse and high-frequency analog circuits where parasitic inductance of conventional chip resistors (typically 1-5 nH) would distort edges or cause ringing. For pulse applications under 100 ns, the non-inductive claim should be verified in your specific layout, as land pattern and trace geometry still introduce parasitic inductance.
Compliance Information
RoHS and REACH compliant per Vishay product page. AEC-Q100 not applicable (this is a passive resistor, not a semiconductor). Termination finish options (W, I, T codes) may include SnPb variants for legacy military assemblies — verify the suffix code matches your process requirements. MIL-PRF-55342 "T" level qualification provides the lot traceability required by defense and aerospace programs.
