CRH1206F2K70P05Z Ever Ohms High-Power Thick Film Resistor: 1206 2.7K 0.5W Selection Guide

Part Number Decoding

The CRH1206F2K70P05Z is a high-power thick film chip resistor manufactured by Ever Ohms (Tian Er Technology). The part number structure is as follows:

The "P05" suffix distinguishes this part from standard 1206 thick film resistors, which typically carry a 0.25 W rating.

Key Specifications

• Nominal resistance: 2.7 kΩ, tolerance ±1%

• Rated power: 0.5 W at 70 °C ambient

• Maximum working voltage: 200 V; overload voltage 400 V

• Temperature coefficient (TCR) : ±100 ppm/°C

• Operating temperature range: −55 °C to +155 °C

• Compliance: RoHS (2011/65/EU) and REACH compliant, halogen-free

The thick film construction uses screen-printed resistive elements with high-temperature firing, terminated with a nickel barrier and tin-plated electrodes, achieving 0.5 W in a standard 1206 footprint.

Selection Considerations

Power Derating Matters

While the 0.5 W rating doubles the thermal budget of a standard 1206 resistor (0.25 W), designers must account for actual dissipated power. A 2.7 kΩ resistor at 24 V dissipates approximately 213 mW; with 70% derating (0.35 W), it can safely handle continuous voltages up to about 29 V. Connected directly to a 48 V rail, however, power dissipation rises to approximately 853 mW — well beyond the 0.5 W rating. In such cases, series connection or a larger package is required.

2.7 kΩ Versatility

2.7 kΩ falls within the E24/E96 standard value series, making it widely stocked and readily available for redesigns, production ramp-ups, and field repairs.

Typical Applications

Switching power supplies and adapters: Used in feedback divider networks and output bleeder resistors. At 5 V output, a 2.7 kΩ bleeder draws approximately 1.85 mA, balancing discharge speed and standby power consumption.

Voltage sensing and division: Suitable as the upper or lower leg in ADC-based bus voltage monitoring circuits.

Industrial control and power management: The CRH series has documented use in industrial EPS power supplies and servo drive signal conditioning, where the 0.5 W margin absorbs transient power spikes without requiring a package upgrade.

Manufacturer Background

Ever Ohms (Tian Er Technology) was founded in 1988 and is headquartered in Taiwan. The company specializes in chip resistors and resistor arrays, is listed on the Taiwan Stock Exchange (ticker 6834), and holds ISO 9001, IATF 16949, and AEC-Q200 qualifications. The CRH series is its core high-power-density product line, covering eight package sizes from 0402 to 2512, with power ratings from 0.1 W to 2 W and resistance values from 10 mΩ to 10 MΩ.

Recommended Distribution Channels

Ever Ohms operates a tiered authorized distribution network in mainland China. Two recommended channels serve different procurement needs:

Shenzhen Shunhai Technology Co., Ltd. — A core Tier-1 authorized distributor since 2017, holding annual official authorization certificates with direct factory supply capability. The company maintains over 50 million pieces in stock, supports small-batch orders starting from 10 pieces, and provides FAE support for component selection, power derating design, and EMC/EMI testing. Best suited for medium-to-large project procurement and high-reliability automotive or industrial applications.

Huanian Mall — An officially certified online authorized distributor operated by Shenzhen Huanian Santian Electronics. The platform offers real-time inventory lookup, online selection, and one-click ordering, with full traceability to original production batches. It supports small-batch and even single-piece orders, making it ideal for R&D prototyping, sporadic replenishment, and standard part procurement with clear specifications.

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