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RMCS0805FT4K22 Equivalent & Substitute Parts
Part Overview
The RMCS0805FT4K22 is a 4.22 kOhms ±1% 0.125W thick film chip resistor in 0805 (2012 Metric) surface mount package manufactured by Stackpole Electronics Inc. This component is actively produced and widely used in general-purpose electronic applications requiring precision resistive elements with anti-sulfur protection. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity across manufacturing environments.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 4.22 kOhms |
| Tolerance | ±1% |
| Power Rating | 0.125W (1/8W) |
| Package / Case | 0805 (2012 Metric) |
| Composition | Thick Film |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C ~ 155°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the RMCS0805FT4K22 is determined by strict alignment of the following critical parameters:
- Resistance Value: Must be 4.22 kOhms
- Package / Case: Must be 0805 (2012 Metric)
- Power Rating: Must be 0.125W (1/8W)
- Composition: Must be Thick Film
- Temperature Coefficient: Must be ±100ppm/°C
- Operating Temperature Range: Must be -55°C ~ 155°C
- RoHS Compliance: Must be ROHS3 Compliant
- Moisture Sensitivity Level: Must be 1 (Unlimited)
All identified substitute parts meet these core electrical and mechanical parameters. Tolerance variations (±1% vs ±0.5%) and feature differences (anti-sulfur vs automotive AEC-Q200 vs moisture resistant) represent acceptable substitution criteria within the same functional category.
Parameter Comparison
| Parameter | RMCS0805FT4K22 (Stackpole) | CRCW08054K22FKEA (Vishay Dale) | ERJ-6ENF4221V (Panasonic) | RC0805DR-074K22L (YAGEO) | RC0805FR-074K22L (YAGEO) |
|---|---|---|---|---|---|
| Resistance | 4.22 kOhms | 4.22 kOhms | 4.22 kOhms | 4.22 kOhms | 4.22 kOhms |
| Tolerance | ±1% | ±1% | ±1% | ±0.5% | ±1% |
| Power Rating | 0.125W | 0.125W | 0.125W | 0.125W | 0.125W |
| Package / Case | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) | 0805 (2012 Metric) |
| Composition | Thick Film | Thick Film | Thick Film | Thick Film | Thick Film |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C | -55°C ~ 155°C |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Height - Seated (Max) | 0.024" (0.60mm) | 0.020" (0.50mm) | 0.028" (0.70mm) | 0.024" (0.60mm) | 0.024" (0.60mm) |
| Product Status | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
All identified substitute parts are actively produced and ROHS3 compliant, meeting regulatory requirements for current manufacturing environments.
CRCW08054K22FKEA (Vishay Dale) carries automotive AEC-Q200 qualification, suitable for applications requiring automotive-grade reliability standards.
ERJ-6ENF4221V (Panasonic Electronic Components) also carries automotive AEC-Q200 qualification and offers the highest inventory availability (70,282 pcs), supporting high-volume procurement requirements.
RC0805DR-074K22L (YAGEO) provides enhanced tolerance specification at ±0.5%, offering tighter resistance accuracy compared to the ±1% primary specification. This part is suitable for applications requiring improved precision.
RC0805FR-074K22L (YAGEO) matches the primary part's ±1% tolerance specification and offers the largest inventory stock (169,734 pcs), providing optimal availability for standard applications.
All substitute parts maintain identical electrical performance within the specified operating temperature range and power dissipation envelope.
Frequently Asked Questions (FAQ)
Q: Can CRCW08054K22FKEA replace RMCS0805FT4K22 in non-automotive applications?
A: Yes. CRCW08054K22FKEA meets all core electrical and mechanical parameters. Automotive AEC-Q200 qualification represents an additional quality assurance level and does not restrict use in general-purpose applications.
Q: What is the significance of the ±0.5% tolerance in RC0805DR-074K22L?
A: RC0805DR-074K22L provides tighter tolerance than the primary part's ±1% specification. This enhanced accuracy is suitable for precision circuit applications where tighter resistance values are required. The ±0.5% tolerance is a superset of ±1% performance.
Q: Are there physical mounting differences between these parts?
A: All parts use the 0805 (2012 Metric) package. Height variations exist: CRCW08054K22FKEA (0.020" max), RMCS0805FT4K22 and RC0805 series (0.024" max), and ERJ-6ENF4221V (0.028" max). These variations are within standard PCB assembly tolerances for 0805 components.
Q: Which substitute part offers the best inventory availability?
A: RC0805FR-074K22L provides the highest stock level at 169,734 pcs, followed by ERJ-6ENF4221V at 70,282 pcs. Both support high-volume procurement without lead time constraints.
Q: Are all substitute parts RoHS compliant?
A: Yes. All identified substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.
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