KOA Speer Electronics MF1/4DCT52A2002F 20 kOhms ±1% 0.25W Through Hole Resistor Equivalent & Substitute Parts

Part Overview

The MF1/4DCT52A2002F is a 20 kOhms ±1% 0.25W through hole resistor manufactured by KOA Speer Electronics, Inc. in the MF series. This metal film axial resistor is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently active in production with 5733 units in stock. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits cross-manufacturer sourcing while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Resistance	20 kOhms
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
Automotive Qualification	AEC-Q200
RoHS Status	ROHS3 Compliant
Size/Dimension	0.091" Dia x 0.248" L (2.30mm x 6.30mm)

Substitute Part Grouping Explanation

Substitute parts for the MF1/4DCT52A2002F are classified based on strict electrical and mechanical parameter matching:

Parametric Equivalents maintain identical specifications across all critical parameters: 20 kOhms resistance, ±1% tolerance, 0.25W power rating, metal film composition, axial package, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, and AEC-Q200 automotive qualification. These parts are direct functional replacements with no performance trade-offs.

Similar Substitutes match all critical electrical parameters (resistance, tolerance, power rating, composition, temperature coefficient, operating range) and mechanical form factor (axial package) but may differ in non-critical attributes such as packaging format (bulk versus cut tape) or minor dimensional variations within acceptable tolerances. These parts are suitable for applications where the specific packaging or minor dimensional differences do not impact circuit performance or board assembly.

The key parameters determining substitutability are: resistance value, tolerance, power rating, composition type, package form factor, temperature coefficient, operating temperature range, and automotive qualification status.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Composition	Temp Coeff	Operating Temp	Package	AEC-Q200	RoHS3	Inventory
MF1/4DCT52A2002F	KOA Speer	20 kOhms	±1%	0.25	Metal Film	±100ppm/°C	-55°C ~ 155°C	Axial	Yes	Yes	5733 Pcs
MF1/4DCT52R2002F	KOA Speer	20 kOhms	±1%	0.25	Metal Film	±100ppm/°C	-55°C ~ 155°C	Axial	Yes	Yes	5396 Pcs
MF1/4DCVTR2002F	KOA Speer	20 kOhms	±1%	0.25	Metal Film	±100ppm/°C	-55°C ~ 155°C	Axial	Yes	Yes	3642 Pcs
MFR-25FBF52-20K	YAGEO	20 kOhms	±1%	0.25	Metal Film	±100ppm/°C	-55°C ~ 155°C	Axial	No	Yes	17244 Pcs

Engineering Selection Recommendations

Parametric Equivalent Selection: MF1/4DCT52R2002F and MF1/4DCVTR2002F are parametric equivalents of MF1/4DCT52A2002F. Both parts are manufactured by KOA Speer Electronics, maintain identical electrical specifications, and carry AEC-Q200 automotive qualification. Selection between these KOA Speer variants depends on packaging requirements and inventory availability.

Similar Substitute Selection: MFR-25FBF52-20K manufactured by YAGEO is a similar substitute that matches all critical electrical parameters and mechanical form factor. This part is ROHS3 compliant and maintains the required operating temperature range and temperature coefficient. However, this part does not carry AEC-Q200 automotive qualification. Use of this substitute is appropriate for non-automotive applications or where automotive qualification is not a design requirement.

Compliance Considerations: All listed parts are ROHS3 compliant. The KOA Speer variants (MF1/4DCT52A2002F, MF1/4DCT52R2002F, MF1/4DCVTR2002F) carry AEC-Q200 qualification, making them suitable for automotive circuit applications. The YAGEO MFR-25FBF52-20K substitute is suitable for general industrial and consumer applications where automotive qualification is not required.

Frequently Asked Questions (FAQ)

Q: Can MF1/4DCT52R2002F be used as a direct replacement for MF1/4DCT52A2002F?

A: Yes. MF1/4DCT52R2002F is a parametric equivalent with identical resistance, tolerance, power rating, composition, temperature coefficient, operating temperature range, and AEC-Q200 automotive qualification. No circuit performance differences exist between these parts.

Q: What is the difference between MF1/4DCVTR2002F and MF1/4DCT52A2002F?

A: Both parts are parametric equivalents manufactured by KOA Speer with identical electrical and mechanical specifications. The difference lies in internal construction or manufacturing process designation indicated by the part number suffix. Both are suitable for direct substitution.

Q: Is MFR-25FBF52-20K suitable for automotive applications?

A: MFR-25FBF52-20K does not carry AEC-Q200 automotive qualification. This part is suitable for general industrial and consumer applications. For automotive circuit designs requiring AEC-Q200 qualification, use KOA Speer variants (MF1/4DCT52A2002F, MF1/4DCT52R2002F, or MF1/4DCVTR2002F).

Q: Are there dimensional differences between these parts?

A: MF1/4DCT52A2002F, MF1/4DCT52R2002F, and MF1/4DCVTR2002F share identical dimensions of 0.091" Dia x 0.248" L (2.30mm x 6.30mm). MFR-25FBF52-20K has a slightly larger diameter of 0.094" Dia x 0.248" L (2.40mm x 6.30mm). Both dimensions are within standard axial resistor tolerances and compatible with standard PCB layouts.

Q: What packaging formats are available?

A: MF1/4DCT52A2002F, MF1/4DCT52R2002F, and MF1/4DCVTR2002F are supplied in Cut Tape (CT) packaging. MFR-25FBF52-20K is supplied in Bulk packaging. Select based on assembly process requirements and inventory management practices.

Q: Do all parts meet ROHS3 compliance?

A: Yes. All listed parts (MF1/4DCT52A2002F, MF1/4DCT52R2002F, MF1/4DCVTR2002F, and MFR-25FBF52-20K) are ROHS3 compliant.

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