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RMCF1206FT105K Equivalent & Substitute Parts
Part Overview
The RMCF1206FT105K is a 105 kOhms ±1% 0.25W chip resistor in 1206 (3216 Metric) package manufactured by Stackpole Electronics Inc. This thick film resistor is qualified to automotive AEC-Q200 standards and operates across -55°C to 155°C. The part is currently active in production with 1035 units in stock.
Substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility permits component sourcing from alternative qualified manufacturers while maintaining electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 105 kOhms |
| Tolerance | ±1% |
| Power Rating | 0.25W (1/4W) |
| Package / Case | 1206 (3216 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 is determined by strict equivalence across the following parameters:
- Resistance value: 105 kOhms
- Tolerance: ±1%
- Power rating: 0.25W (1/4W)
- Package: 1206 (3216 Metric)
- Composition: Thick Film
- Temperature coefficient: ±100ppm/°C
- Operating temperature range: -55°C ~ 155°C
- RoHS compliance: ROHS3 Compliant
- Moisture sensitivity: MSL 1 (Unlimited)
All listed substitute parts meet these core electrical and mechanical specifications. Variations in physical dimensions (height, length, width) within the 1206 package envelope and differences in product features (automotive AEC-Q200 qualification, moisture resistance) do not affect functional substitutability for this resistance value and power rating.
Parameter Comparison
| Manufacturer | Part Number | Resistance | Tolerance | Power (W) | Package | Temp Coeff (ppm/°C) | Op. Temp (°C) | Features | Product Status | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|---|
| Stackpole Electronics Inc | RMCF1206FT105K | 105 kOhms | ±1% | 0.25 | 1206 | ±100 | -55 ~ 155 | Automotive AEC-Q200 | Active | 1035 |
| Stackpole Electronics Inc | RMCF1206FG105K | 105 kOhms | ±1% | 0.25 | 1206 | ±100 | -55 ~ 155 | Automotive AEC-Q200 | Active | 10726 |
| Bourns Inc. | CR1206-FX-1053ELF | 105 kOhms | ±1% | 0.25 | 1206 | ±100 | -55 ~ 155 | Moisture Resistant | Active | 886 |
| Vishay Dale | CRCW1206105KFKEA | 105 kOhms | ±1% | 0.25 | 1206 | ±100 | -55 ~ 155 | Automotive AEC-Q200 | Active | 26087 |
| Panasonic Electronic Components | ERJ-8ENF1053V | 105 kOhms | ±1% | 0.25 | 1206 | ±100 | -55 ~ 155 | Automotive AEC-Q200 | Not For New Designs | 53077 |
| Rohm Semiconductor | KTR18EZPF1053 | 105 kOhms | ±1% | 0.25 | 1206 | ±100 | -55 ~ 155 | Automotive AEC-Q200, High Voltage | Active | 5252 |
| Rohm Semiconductor | MCR18ERTF1053 | 105 kOhms | ±1% | 0.25 | 1206 | ±100 | -55 ~ 155 | — | Discontinued at DiGi Electronics | 1076 |
| YAGEO | RC1206FR-07105KL | 105 kOhms | ±1% | 0.25 | 1206 | ±100 | -55 ~ 155 | Moisture Resistant | Active | 27930 |
Engineering Selection Recommendations
For active production designs, prioritize parts with Active product status: RMCF1206FG105K (Stackpole), CRCW1206105KFKEA (Vishay Dale), KTR18EZPF1053 (Rohm), and RC1206FR-07105KL (YAGEO). All maintain ROHS3 compliance and MSL 1 moisture sensitivity rating.
For automotive applications requiring AEC-Q200 qualification, select from RMCF1206FT105K, RMCF1206FG105K, CRCW1206105KFKEA, ERJ-8ENF1053V, or KTR18EZPF1053.
Avoid ERJ-8ENF1053V and MCR18ERTF1053 for new designs. ERJ-8ENF1053V carries "Not For New Designs" status, and MCR18ERTF1053 is discontinued at DiGi Electronics.
For applications with no automotive requirement, CR1206-FX-1053ELF (Bourns) and RC1206FR-07105KL (YAGEO) offer moisture-resistant thick film construction as alternatives.
Frequently Asked Questions (FAQ)
Q: Can RMCF1206FT105K be replaced with RMCF1206FG105K?
A: Yes. Both are Stackpole RMCF series resistors with identical electrical specifications (105 kOhms ±1%, 0.25W, ±100ppm/°C, -55°C to 155°C) and automotive AEC-Q200 qualification. RMCF1206FG105K has higher inventory availability (10726 units vs. 1035 units).
Q: Are there non-automotive qualified substitutes?
A: Yes. CR1206-FX-1053ELF (Bourns) and RC1206FR-07105KL (YAGEO) meet all electrical and mechanical specifications but lack automotive AEC-Q200 qualification. These are suitable for non-automotive applications requiring moisture-resistant thick film construction.
Q: Why is ERJ-8ENF1053V marked "Not For New Designs"?
A: This designation indicates the part is in mature/end-of-life phase. While electrically equivalent and currently in stock (53077 units), Panasonic recommends alternative sources for new design implementations.
Q: Do all substitutes fit the same PCB footprint?
A: Yes. All parts use the 1206 (3216 Metric) package. Physical dimensions vary slightly (height ranges 0.024" to 0.030"), but all remain within standard 1206 package envelope specifications and are compatible with existing PCB layouts.
Q: Which substitute has the best availability?
A: CRCW1206105KFKEA (Vishay Dale) has the highest inventory at 26087 units, followed by RC1206FR-07105KL (YAGEO) at 27930 units.
Q: Can MCR18ERTF1053 be used as a substitute?
A: MCR18ERTF1053 is electrically equivalent but is discontinued at DiGi Electronics. Use only if existing inventory is available and supply chain continuity is not a concern.
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