Ever Ohms CRH2512F5R10E04S 2512 Package 5.1Ω 2W High-Power Thick Film Chip Resistor
- CRH: High-power thick film series (Ever Ohms), distinct from standard CR line
- 2512: Imperial package 6.4×3.2×0.55mm (metric 6432)
- F: Tolerance ±1% (F=±1%, G=±2%, J=±5%)
- 5R10: Nominal resistance 5.1Ω ("R" = decimal point)
- E04S: E04 = 2W power grade + ±400ppm/℃ TCR; S = tape/customer code variant (E04Z is the alternate suffix)
| Item | Value |
|---|---|
| Brand | Ever Ohms (天二) |
| Package | 2512 (6.4×3.2mm) |
| Resistance | 5.1R (5.1Ω) |
| Tolerance | ±1% |
| Rated Power | 2W @70℃ |
| TCR | ±400ppm/℃ |
| Operating Temp | -55℃ ~ +155℃ |
| Rated Voltage | 200V |
| Compliance | RoHS 2.0 / REACH |
Source: Ever Ohms CRH Series datasheet S-10-12-16-01.
Standard 2512 thick film resistors typically cap at 1W. The CRH "up-rated" version doubles that to 2W in the same footprint, using:
- High-purity alumina ceramic substrate (~20 W/(m·K) thermal conductivity)
- Ruthenium-based thick film paste, 850℃ sintering
- Glass-overglaze protection (anti-sulfuration, moisture resistant)
- Ag-Ni-Sn triple-layer terminations, compatible with 260℃ reflow (3 cycles)
A note on TCR: ±400ppm/℃ is typical for low-ohmic thick film at 2W. If your application is BMS current sensing where TCR matters, this part fits better as a limiter/dummy load rather than precision sense; for sensing, consider alloy shunts or higher-res CRH grades (TCR can go down to ±100ppm in mid/high resistance range).
The 2512 5.1R 2W combo targets "high current + low ohmic + don't want to parallel" scenarios:
- SMPS secondary-side limiting, dummy loads, discharge paths
- Motor drives / industrial control (servo, VFD buffer)
- Appliance mainboards (AC, fridge, washer power sections)
- Fast-charger adapter output limiting
Replaces two paralleled 1206 1W parts with one 2512 5.1R 2W — saves PCB area and BOM lines.
Within Ever Ohms' portfolio, CRH sits between standard CR thick film (lower power) and alloy sense resistors (higher cost, lower TCR). The 2512 5.1R 2W variant occupies the low-ohmic power slot — limiters, buffers, snubbers, not precision sensing. As a domestic alternative to Vishay / Rohm / Yageo 2512 2W thick film parts, CRH trades on lead-time flexibility and cost for mid-to-high volume power designs.
Ever Ohms (天二科技) is a Taiwan-based passive component manufacturer with 30+ years in chip resistors. In-house thick film sintering and termination plating lines; CRH family is RoHS/REACH compliant, partial batches AEC-Q200 qualified, commonly seen on China domestic power supply and industrial BOMs.
For engineering samples or small batches of CRH2512F5R10E04S, contact Shenzhen Shunhai Technology Co., Ltd. (深圳顺海科技), an authorized Ever Ohms distributor — they can provide datasheets, lead time, and volume pricing. Spot buys are also available on Huanian Mall (华年商城); 2512 5.1R 2W is a common enough grade that stock usually moves. For production volumes, negotiate direct through Shunhai against original factory MOQ; confirm E04S vs E04Z suffix with your purchaser to match SMT loader config.
