Product Number Decoding
CRH2512F91R0E04Z is a standard model from EVER OHMS' CRH series of high-power thick film chip resistors. The coding breakdown is as follows:
- CRH: Chip Resistor High Power series, the core high-power resistor product line
- 2512: Imperial package size, corresponding to metric 6432 (approx. 6.35mm × 3.18mm)
- F: Tolerance code, indicating ±1% accuracy (J denotes ±5%)
- 91R0: Nominal resistance 91Ω
- E04Z: Internal code covering packaging specifications and environmental compliance, indicating RoHS and halogen-free compliance
Product Characteristics
Key electrical parameters of the CRH2512F91R0E04Z 2512 91R 2W resistor:
| Parameter | Specification |
|---|---|
| Package | 2512 (6.35mm × 3.18mm) |
| Resistance | 91Ω |
| Tolerance | ±1% |
| Rated Power | 2W (at 70℃) |
| TCR | ±100ppm/℃ |
| Max Working Voltage | 200V |
| Max Overload Voltage | 500V |
| Operating Temperature | -55℃ ~ +155℃ |
| Type | Thick Film |
This 2512 91R 2W resistor is manufactured using thick film technology on a high-purity alumina ceramic substrate. Its most notable feature is the "power-boost" design – standard 2512 package thick film resistors typically support only 1W, while this product achieves 2W rated power in the same physical footprint, effectively doubling power density. This breakthrough comes from optimized high thermal conductivity ceramic substrates and improved thick film paste formulations.
The product features multi-layer thickened electrodes with extended terminal design, enhancing heat dissipation and solder joint reliability. It is certified under ISO-9001, ISO-TS16949, and complies with AEC-Q200 automotive electronics standards.
Applications
The CRH2512F91R0E04Z 2512 91R 2W resistor finds wide application across multiple sectors:
Power Management is a primary application area – used as startup resistors and RC snubber circuit resistors in switching power supplies, with 2W power margin ensuring no thermal failure under surge current impacts. Also applicable in LED lighting drivers, power adapters, and server power supplies.
Industrial Control and Measurement – used as load resistors in PLC control circuits, standard loads in ATE test systems, and precision voltage divider components in meters and navigation equipment.
Automotive Electronics – with AEC-Q200 certification, suitable for battery management systems (BMS), engine control units, and other high-reliability applications. In onboard charging systems, the 91Ω resistance combined with 2W power effectively limits current and protects downstream circuits.
Consumer Electronics and Communication Equipment – used in power management circuits for mobile phones, fax machines, and computer motherboards.
Product Advantages
High Power Density is the most prominent advantage of this 2512 91R 2W resistor. Achieving 2W in a standard 2512 package allows engineers to implement higher power designs within limited PCB space, reducing the need for parallel resistors and simplifying PCB layout.
Wide Temperature Stability – the -55℃ to +155℃ operating range combined with ±100ppm/℃ low TCR ensures stable resistance values even in harsh environments.
High Reliability – AEC-Q200 certification signifies the product has passed rigorous tests including temperature cycling, humidity load life, and solvent resistance. Low resistance drift under long-term loading with outstanding moisture and thermal shock resistance.
Cost Advantage – EVER OHMS' scaled production delivers stable cost control, offering industrial-grade quality at prices significantly below international brand equivalents. Thick film technology inherently provides substantial cost advantages over thin film alternatives.
Standardized Package – the 2512 package is compatible with mainstream SMT processes, and tape-and-reel packaging (4,000 pieces/reel) supports automated placement.
Market Positioning
The CRH2512F91R0E04Z 2512 91R 2W resistor is positioned in the mid-to-high-end power chip resistor market. Within the 2512 package, 2W power resistor segment, it primarily competes with TE Connectivity's CRGH series and Yageo's RC series.
EVER OHMS has established a strong market reputation in industrial control, communication equipment, and automotive electronics through its differentiated "power-boost" design – doubling power within standard packaging. With growing demand for high-power resistors driven by new energy and 5G applications, the CRH series continues to strengthen its competitive position in industrial and automotive electronics through thick film cost advantages combined with automotive-grade reliability.
Brand Introduction
EVER OHMS was established in 1988 with in-house R&D and manufacturing capabilities for chip resistors and resistor arrays. The company holds ISO-9001, ISO-TS16949, and TTQS certifications, with products compliant with AEC-Q200 automotive electronics standards. With high-power, high-precision resistors as its core technological strength, the CRH series serves as the flagship high-power thick film product line, building strong brand reputation through stable electrical performance and batch-to-batch consistency.
Recommended Distributors:
Shenzhen Shunhai Technology Co., Ltd. is an authorized distributor of EVER OHMS, offering the full range of thick film and thin film chip resistors, metal plate and metal film current sensing resistors. Shunhai Technology provides complete datasheets and technical support for CRH2512F91R0E04Z.
Huanian Mall (www.hnstshop.com) is a quality spot supplier of EVER OHMS high-power thick film chip resistors, offering selection consulting and bulk procurement services for the CRH series.
