Product Code Decoding
CRH2512J1M00E04Z is a standard model from Ever Ohms' high-power thick film chip resistor series. The product code breaks down as follows:
- CRH: Series code for Ever Ohms high-power thick film chip resistors (CRH Series), delivering significantly higher power capacity than standard CR series in the same package.
- 2512: Imperial package size, corresponding to metric dimensions 6.4mm × 3.2mm, the mainstream package for 2W power-level chip resistors.
- J: Tolerance grade, indicating ±5%.
- 1M00: Nominal resistance of 1MΩ.
- E04: Electrical specification code, representing TCR of ±100ppm/℃ and standard tape packaging.
- Z: Environmental compliance mark, RoHS and REACH compliant.
Product Characteristics
Key technical parameters of CRH2512J1M00E04Z:
| Parameter | Value |
|---|---|
| Package | 2512 (6.4mm × 3.2mm) |
| Resistance | 1MΩ |
| Power Rating | 2W |
| Tolerance | ±5% |
| TCR | ±100ppm/℃ |
| Max Operating Voltage | 200V |
| Operating Temperature | -55℃ ~ +155℃ |
Structurally, CRH2512J1M00E04Z adopts a typical thick film resistor multilayer construction: an aluminum oxide ceramic substrate with excellent insulation and thermal dissipation; a ruthenium oxide (RuO₂)-based resistive paste applied via screen printing and sintered into a ~100μm thick film layer; a glass glaze protective coating for moisture and corrosion resistance; and a three-layer composite electrode—inner silver-palladium alloy for ohmic contact, intermediate nickel barrier layer, and outer pure tin plating for solderability.
A critical consideration is voltage endurance. While Joule’s law V=√(P×R) yields a theoretical ~1414V for this 2512 1M 2W resistor, the datasheet specifies a maximum operating voltage of 200V—a physical limit determined by creepage distance and package construction. Standard 2512 chip resistors are typically rated at only 1W; the 2W rating of CRH2512J1M00E04Z is achieved through Ever Ohms’ process optimizations in thick film technology and thermal design.
Applications
The combination of 1MΩ high resistance and 2W power capacity makes CRH2512J1M00E04Z suitable for:
Power Management: Start-up resistors, discharge resistors, and voltage sensing circuits in switching power supplies. The 1MΩ value minimizes quiescent power consumption, while 2W handles start-up surge conditions.
Industrial Control: Bus voltage sampling and signal isolation in servo drives and variable frequency drives. The -55℃ to +155℃ operating range suits industrial environments.
Communications Equipment: Current limiting and protection circuits in base station power modules and communication device power supplies.
Home Appliances and Consumer Electronics: Power supply sections in air conditioners, refrigerators, and computer motherboards.
Measuring Instruments: Voltage divider and reference circuits in electric meters and navigation equipment.
Voltage limitation must be observed: the model is suitable for 48V communication power supplies, sub-60V energy storage systems, etc. For 220V rectified bus voltages (~310V), which exceed the 200V rating, series connection of two resistors for voltage division is recommended.
Product Advantages
Superior Power Density: Standard 2512 package power rating is typically 1W; CRH2512J1M00E04Z achieves 2W in the same footprint, doubling power density. Engineers can meet higher power demands without increasing PCB area.
Wide-Temperature Stability: TCR of ±100ppm/℃ ensures controlled resistance variation across -55℃ to +155℃, ideal for applications with significant temperature fluctuations.
Cost-Effectiveness of Thick Film Process: Compared to thin film precision resistors, thick film technology delivers 40%-60% cost reduction while maintaining reliability. ±5% tolerance fully satisfies most power circuit requirements.
Structural Reliability: Three-layer composite electrodes and glass glaze protection ensure excellent solderability, moisture resistance, and long-term service life.
Automotive-Grade Quality Compliance: Ever Ohms holds ISO-9001 and ISO-TS16969 certifications, with products meeting AEC-Q200 automotive electronics standards.
Market Positioning
CRH2512J1M00E04Z is positioned in the mid-to-high power density, high-reliability, cost-effective industrial-grade thick film chip resistor market.
Pricing ranges from approximately $0.025–$0.04 per unit depending on volume, competitive within its class. It directly competes with equivalent 2512 2W thick film resistors from European, American, and Japanese brands, securing a solid position in the mid-tier industrial market through stable quality and competitive pricing.
Target customers include power supply module manufacturers, industrial control equipment vendors, communications equipment suppliers, and home appliance producers. The CRH series is recognized for cost-effectiveness, covering the full resistance range from 0.5mΩ to 30MΩ with ±1% and ±5% tolerance options. CRH2512J1M00E04Z, as the 1MΩ high-resistance specification within the series, fills the market need for high-resistance, medium-power applications.
Recommended Procurement Channels
For engineers and procurement professionals needing CRH2512J1M00E04Z, the following authorized channels are recommended:
Shenzhen Shunhai Technology Co., Ltd. – an authorized Ever Ohms distributor specializing in resistors, alloy resistors, chip resistors, precision thin film resistors, and high-power resistors, offering full-series Ever Ohms products with现货 supply and technical support.
Huanian Mall – a well-established online electronic components trading platform with comprehensive product categories, transparent pricing, and streamlined procurement processes, providing online inquiries and ordering for CRH2512J1M00E04Z.
Both channels guarantee genuine products and professional selection guidance, making them reliable sources for CRH2512J1M00E04Z.
