Ever Ohms 2512 High-Power Thick Film Chip Resistor with 2W Rated Power 1 MΩ Resistance and AEC-Q200 Qualification

CRH​ = High-power thick film series | 2512​ = 6.4 × 3.2 mm (Imperial 2512 / Metric 6432) | J​ = tolerance ±5%​ | 1M00​ = nominal 1 MΩ​ | E04Z​ = ±100 ppm/°C, tape & reel, RoHS​ compliant.

• Rated Power: 2 W @ 70 °C​ (derate above 70 °C)

• Resistance: 1 MΩ ±5%

• TCR: ±100 ppm/°C

• Operating Temp: -55 °C ~ +155 °C

• Max Working Voltage: 200 V​ | Overload Voltage: 400 V

• Insulation Resistance: ≥ 10 GΩ

• Compliance: AEC-Q200​ qualified, RoHS, MSL1

The construction uses an alumina (Al₂O₃) ceramic substrate, RuO₂-based thick film resistive layer (screen-printed & sintered), overglazed with protective glass, and three-layer terminations​ (Ag/Pd – Ni barrier – pure Sn plating) for reliability under thermal cycling and reflow.

Using P = I²R: full-power current ≈ 1.41 mA.

But the 200 V max working voltage​ caps it at I = V/R = 200 V / 1 MΩ = 0.2 mA.

→ Always verify the steady-state voltage across the resistor​ (especially in high-side divider or bleeder positions), not just the wattage.

• High-voltage divider / sense networks (inverter DC link, offline SMPS feedback)

• Bleeder / discharge resistors for bulk capacitors

• Gate bias / pull-up–pull-down paths where a robust 1 MΩ is needed

• Industrial controls & telecom gear requiring -55 ~ +155 °C​ endurance and AEC-Q200 pedigree

This part is positioned as a high-power-density workhorse: 2 W in a standard 2512 footprint, thick-film cost structure, tight enough TCR for industrial use, and the certification depth (AEC-Q200, RoHS) that makes it viable in automotive-adjacent and long-life equipment. It competes on reliability-per-dollar​ rather than ultra-precision.

For genuine stock and consistent traceability, go through official channels:

When a resistor sits in a high-voltage or high-temperature loop, "genuine + traceable + batch consistency" pays for itself quickly. Buying on spec alone isn't worth the risk—let the authorized partners carry that burden for you.