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MF1/4DCT52R4640F Equivalent & Substitute Parts
Part Overview
The MF1/4DCT52R4640F is a 464 Ohms ±1% 0.25W through-hole resistor manufactured by KOA Speer Electronics, Inc. This metal film axial resistor is designed for automotive applications and meets AEC-Q200 qualification standards. The component is currently in active production status with 894 pieces available in new original inventory. Substitute parts are identified when equivalent electrical and mechanical specifications are required for design flexibility, supply chain continuity, or inventory optimization.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 464 Ohms |
| Tolerance | ±1% |
| Power Rating | 0.25W (1/4W) |
| Composition | Metal Film |
| Package Type | Axial |
| Temperature Coefficient | ±100ppm/°C |
| Operating Temperature Range | -55°C to 155°C |
| RoHS Status | ROHS3 Compliant |
| Number of Terminations | 2 |
Substitute Part Grouping Explanation
Substitute parts for the MF1/4DCT52R4640F are identified based on strict equivalence of the following critical parameters:
- Resistance value: 464 Ohms
- Tolerance: ±1%
- Power rating: 0.25W (1/4W)
- Composition: Metal Film
- Package configuration: Axial through-hole
- Temperature coefficient: ±100ppm/°C
- Operating temperature range: -55°C to 155°C
- RoHS compliance: ROHS3 Compliant
Parts meeting all these criteria are classified as direct electrical and mechanical equivalents. Physical dimensions may vary within acceptable tolerances for axial package geometry without affecting circuit performance or board-level compatibility.
Parameter Comparison
| Parameter | MF1/4DCT52R4640F (KOA Speer) | MFR-25FBF52-464R (YAGEO) |
|---|---|---|
| Resistance | 464 Ohms | 464 Ohms |
| Tolerance | ±1% | ±1% |
| Power Rating | 0.25W (1/4W) | 0.25W (1/4W) |
| Composition | Metal Film | Metal Film |
| Package Type | Axial | Axial |
| Temperature Coefficient | ±100ppm/°C | ±100ppm/°C |
| Operating Temperature Range | -55°C to 155°C | -55°C to 155°C |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Number of Terminations | 2 | 2 |
| Diameter | 0.091" (2.30mm) | 0.094" (2.40mm) |
| Length | 0.248" (6.30mm) | 0.248" (6.30mm) |
Engineering Selection Recommendations
Both the MF1/4DCT52R4640F and MFR-25FBF52-464R meet identical electrical specifications and compliance requirements. Selection between these parts should be based on:
- Availability and lead time requirements
- Packaging format preference (Cut Tape versus Bulk)
- Inventory management strategy
- Supplier qualification and quality agreements
The MFR-25FBF52-464R from YAGEO provides equivalent performance with 6831 pieces available in bulk packaging, offering an alternative supply source for the same electrical and mechanical function.
Frequently Asked Questions (FAQ)
Q: Can MFR-25FBF52-464R be used as a direct replacement for MF1/4DCT52R4640F?
A: Yes. Both parts share identical electrical specifications (464 Ohms ±1%, 0.25W, metal film composition, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range) and package configuration (axial through-hole). Physical dimensions differ by 0.003" in diameter, which does not affect circuit performance or board-level compatibility.
Q: Are there any compliance differences between these parts?
A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified under the same HTSUS code (8533.21.0090). Compliance status is equivalent.
Q: What is the significance of the packaging difference?
A: The MF1/4DCT52R4640F is supplied in Cut Tape (CT) packaging, while the MFR-25FBF52-464R is supplied in Bulk packaging. This affects handling, storage, and automated assembly processes but does not impact electrical or mechanical performance.
Q: Are these parts suitable for automotive applications?
A: The MF1/4DCT52R4640F carries AEC-Q200 automotive qualification. The MFR-25FBF52-464R does not list automotive qualification in the provided specifications. Automotive application requirements should be confirmed with the component supplier before substitution.
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