MF1/4DC1002F Equivalent & Substitute Parts

Part Overview

The MF1/4DC1002F is a 10 kOhms ±1% 0.25W through-hole axial resistor manufactured by KOA Speer Electronics, Inc. This metal film resistor is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently in active production status with 1117 units available in bulk packaging. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to packaging availability, inventory constraints, or supply chain considerations.

Key Parameters

Parameter	Value
Resistance	10 kOhms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Composition	Metal Film
Temperature Coefficient	±100ppm/°C
Operating Temperature Range	-55°C to 155°C
Package Type	Axial
Automotive Qualification	AEC-Q200
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the MF1/4DC1002F are classified into two categories based on electrical and mechanical parameter alignment:

Parametric Equivalents maintain identical electrical specifications and physical dimensions while differing only in packaging format. These parts share the same resistance value (10 kOhms), tolerance (±1%), power rating (0.25W), composition (metal film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and axial package configuration. The MF1/4DCT52R1002F and MF1/4DCVTR1002F are supplied in cut tape packaging rather than bulk, making them suitable for automated assembly processes.

Similar Equivalents maintain all critical electrical parameters and physical dimensions within acceptable tolerances for the application. The MFR-25FRF52-10K from YAGEO meets the same resistance, tolerance, power rating, composition, temperature coefficient, and operating temperature specifications. The dimensional variance (0.094" diameter versus 0.091") represents a minor mechanical difference that does not affect electrical performance or circuit board layout compatibility for standard through-hole applications.

Parameter Comparison

Parameter	MF1/4DC1002F (Main)	MF1/4DCT52R1002F	MF1/4DCVTR1002F	MFR-25FRF52-10K
Manufacturer	KOA Speer Electronics	KOA Speer Electronics	KOA Speer Electronics	YAGEO
Resistance	10 kOhms	10 kOhms	10 kOhms	10 kOhms
Tolerance	±1%	±1%	±1%	±1%
Power Rating	0.25W	0.25W	0.25W	0.25W
Composition	Metal Film	Metal Film	Metal Film	Metal Film
Temperature Coefficient	±100ppm/°C	±100ppm/°C	±100ppm/°C	±100ppm/°C
Operating Temperature	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C
Package Type	Axial	Axial	Axial	Axial
Packaging Format	Bulk	Cut Tape (CT)	Cut Tape (CT)	Cut Tape (CT)
Size / Dimension	0.091" Dia x 0.248" L (2.30mm x 6.30mm)	0.091" Dia x 0.248" L (2.30mm x 6.30mm)	0.091" Dia x 0.248" L (2.30mm x 6.30mm)	0.094" Dia x 0.248" L (2.40mm x 6.30mm)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active
Inventory Availability	1117 Pcs	2760 Pcs	3527 Pcs	5100 Pcs

Engineering Selection Recommendations

All listed substitute parts maintain active product status and ROHS3 compliance, ensuring long-term availability and regulatory conformance. Selection between the MF1/4DC1002F and its parametric equivalents (MF1/4DCT52R1002F and MF1/4DCVTR1002F) depends on assembly process requirements. The bulk-packaged main part suits manual assembly or kit-based applications, while cut tape variants support automated pick-and-place operations.

The MFR-25FRF52-10K from YAGEO provides an alternative from a different manufacturer while maintaining identical electrical performance. The minor dimensional variance (0.003" diameter increase) does not impact circuit board layout or electrical function for standard through-hole applications. Selection of this part may be driven by supply chain diversification or regional availability.

All parts are REACH unaffected and carry EAR99 export classification, maintaining consistent compliance across substitution options.

Frequently Asked Questions (FAQ)

Q: Can MF1/4DCT52R1002F and MF1/4DCVTR1002F be used interchangeably with MF1/4DC1002F?

A: Yes. These parts are parametric equivalents with identical electrical specifications and physical dimensions. The only difference is packaging format (cut tape versus bulk). They are suitable for direct substitution in any circuit application where the main part is specified.

Q: What is the difference between cut tape and bulk packaging?

A: Bulk packaging supplies loose components suitable for manual assembly or kit distribution. Cut tape packaging supplies components on continuous tape, designed for automated assembly equipment. Electrical and mechanical specifications are identical between formats.

Q: Is the MFR-25FRF52-10K from YAGEO a direct substitute?

A: The MFR-25FRF52-10K is a functional equivalent with identical electrical parameters. The diameter dimension is 0.094" compared to 0.091" for the KOA part, representing a 0.003" increase. This minor variance does not affect standard through-hole circuit board layouts or electrical performance.

Q: Are all substitute parts automotive qualified?

A: The KOA Speer parts (MF1/4DC1002F, MF1/4DCT52R1002F, and MF1/4DCVTR1002F) carry AEC-Q200 automotive qualification. The YAGEO MFR-25FRF52-10K does not list automotive qualification in the provided specifications. Selection should account for automotive requirement compliance if mandated by application standards.

Q: What determines substitution eligibility for this resistor?

A: Substitution is based on matching resistance value (10 kOhms), tolerance (±1%), power rating (0.25W), composition (metal film), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and axial package type. All listed parts meet these criteria.

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