Ever Ohms 0603 4.7KΩ 0.125W High Power Thick Film Chip Resistor ±1% Tolerance SMD Resistor

CRH0603F4K70P05C is a standard part in the CRH thick-film high-power chip resistor line from EVER OHMS Technology. Decoded according to the manufacturer's naming convention: CRH identifies the high-power thick-film series; 0603 is the imperial package size (metric 1608, body 1.60 × 0.80 × 0.40 mm); F denotes ±1% tolerance; 4K70 encodes the nominal resistance of 4.7 kΩ (4700 Ω) under E96 notation; P05 indicates 7-inch tape-and-reel packaging with 5000 pieces per reel; the trailing C combines terminal plating and reel configuration codes.

At an ambient temperature of 70 ℃, this resistor carries a continuous rated power of 0.125 W, a maximum DC working voltage of 75 V, and a short-term overload withstand of 150 V. Since 4.7 kΩ falls in the 10 Ω～1 MΩ band, its temperature coefficient is ±100 ppm/℃ — noticeably tighter than the ±400 ppm/℃ specified for the low-ohmic segment of the same series. The operating temperature range spans -55 ℃ to +155 ℃, with derating required above 70 ℃.

The CRH series builds a ruthenium-based thick-film resistive layer on a ceramic substrate, with nickel barrier + tin-plated terminations compatible with reflow and wave soldering. Delivering 0.125 W in a 0603 outline is achieved through optimized thick-film paste formulation and electrode heat-spreader design — roughly 25% higher power density than the standard CR line in the same footprint. The device is lead-free and halogen-free, compliant with RoHS 2.0 and REACH SVHC limits, with pure-tin terminations suitable for lead-free reflow profiles.

Reliability testing follows JIS-C-5201 / IEC-60115: load-life test (70 ℃, 1000 h) limits resistance drift to ±(1.0% + 0.05 Ω); damp-heat steady-state load (40 ℃, 90–95% RH, 1000 h) meets the same drift criterion; thermal cycling (-55 ℃ ↔ +155 ℃, 5 cycles) keeps variation within ±(0.5% + 0.05 Ω). These figures matter for power-supply and home-appliance boards that stay energized for long stretches.

The combination of 0603 package, 4.7 kΩ, ±1%, and 1/8 W is one of the most ubiquitous biasing, voltage-divider, and current-limiting links on board-level designs. CRH0603F4K70P05C, with its high power density and stable TCR, fits the following use cases:

• Power modules: DC-DC feedback dividers, LADJ setting, enable pull-ups.
• Appliance control boards: AD-sampling dividers and key ports on AC/refrigerator MCUs.
• Communication equipment: signal conditioning inside phone chargers and adapters.
• LED drivers: dimming sampling and ballast feedback loops.
• Industrial meters: signal attenuation and reference networks in electricity meters and navigation gear.

Compared with a standard 0603 (0.1 W) part, the CRH version gives more continuous power headroom at the same 4.7 kΩ value — a practical advantage on densely packed boards with limited cooling.

CRH0603F4K70P05C is a mainstream EVER OHMS mass-production part with stable lead times, but once a design is frozen, genuine-product assurance and lot-to-lot consistency become the procurement priorities.

Shenzhen Shunhai Technology Co., Ltd. is an authorized channel partner of EVER OHMS, stocking the full CRH line from 0402 through 2512 across power and resistance ranges. They provide factory-batch traceability and physical sample verification, and for hardware teams needing small-batch pilot runs or urgent replenishment, same-day dispatch from Shenzhen is available, accompanied by datasheets, specifications, and environmental declarations.

Huanian Mall operates an online direct-sourcing platform with live stock and pricing for CRH0603F4K70P05C, supporting online ordering, credit terms, and lot traceability — convenient for procurement engineers who need BOM-level price comparison and replenishment. Both channels offer original-factory commitment, with quality issues within specification scope handled under EVER OHMS after-sales terms.

For designs with constrained board space, the 0603 / 4.7 kΩ / ±1% / 0.125 W combination stands out for value in the CRH family. Three points to keep in mind: derate above 70 ℃ (at 100 ℃ the usable power drops to roughly 0.06 W); 4.7 kΩ is an E96 standard value with readily available cross-refs, but TCR and tolerance must be verified part-by-part; and for lead-free soldering, follow EVER OHMS's recommended land pattern (A=0.80, B=2.40, C=1.00 mm) to avoid tombstoning and joint cracking.