CFP1/4CT52R2R2J Equivalent & Substitute Parts

Part Overview

The CFP1/4CT52R2R2J is a 2.2 Ohms ±5% 0.25W through-hole axial resistor manufactured by KOA Speer Electronics, Inc. in the CF series. This carbon film resistor features flame-proof and safety characteristics, designed for applications requiring reliable fixed resistance in through-hole configurations. The part is currently active in production with ROHS3 compliance and is available in Cut Tape packaging with 5860 pieces in stock.

Substitute parts are identified when they maintain identical electrical specifications and mechanical compatibility while potentially differing in packaging format or inventory availability.

Key Parameters

Parameter	Value
Resistance	2.2 Ohms
Tolerance	±5%
Power Rating	0.25W (1/4W)
Composition	Carbon Film
Package Type	Axial Through-Hole
Temperature Coefficient	-450/+350 ppm/°C
Operating Temperature Range	-55°C to 155°C
Physical Dimensions	0.091" Dia × 0.240" L (2.30mm × 6.10mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the CFP1/4CT52R2R2J is determined by strict equivalence across the following critical parameters:

Resistance value: 2.2 Ohms
Tolerance: ±5%
Power rating: 0.25W (1/4W)
Composition: Carbon Film
Package configuration: Axial Through-Hole
Temperature coefficient: -450/+350 ppm/°C
Operating temperature range: -55°C to 155°C
Physical dimensions: 0.091" Dia × 0.240" L (2.30mm × 6.10mm)

Parts meeting all these criteria are classified as parametric equivalents. Packaging format (Cut Tape versus Bulk) does not affect electrical or mechanical compatibility and represents a supply chain variable only.

Parameter Comparison

Parameter	CFP1/4CT52R2R2J (Main)	CF1/4C2R2J (Substitute)	CF1/4CT52R2R2J (Substitute)
Manufacturer	KOA Speer Electronics, Inc.	KOA Speer Electronics, Inc.	KOA Speer Electronics, Inc.
Series	CF	CF	CF
Resistance	2.2 Ohms	2.2 Ohms	2.2 Ohms
Tolerance	±5%	±5%	±5%
Power Rating	0.25W (1/4W)	0.25W (1/4W)	0.25W (1/4W)
Composition	Carbon Film	Carbon Film	Carbon Film
Temperature Coefficient	-450/+350 ppm/°C	-450/+350 ppm/°C	-450/+350 ppm/°C
Operating Temperature	-55°C to 155°C	-55°C to 155°C	-55°C to 155°C
Package Type	Axial	Axial	Axial
Physical Dimensions	0.091" Dia × 0.240" L (2.30mm × 6.10mm)	0.091" Dia × 0.240" L (2.30mm × 6.10mm)	0.091" Dia × 0.240" L (2.30mm × 6.10mm)
Packaging Format	Cut Tape (CT)	Bulk	Cut Tape (CT)
Product Status	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All three parts—CFP1/4CT52R2R2J, CF1/4C2R2J, and CF1/4CT52R2R2J—are active products from KOA Speer Electronics, Inc. with identical electrical and mechanical specifications. Selection between them is based on packaging and inventory requirements:

CFP1/4CT52R2R2J: Cut Tape packaging, 5860 pieces in stock. Suitable for automated assembly processes requiring tape-and-reel format.
CF1/4C2R2J: Bulk packaging, 1910 pieces in stock. Suitable for manual assembly or applications where tape packaging is not required.
CF1/4CT52R2R2J: Cut Tape packaging, 96294 pieces in stock. Highest inventory availability in Cut Tape format.

All parts maintain ROHS3 compliance and REACH unaffected status. No electrical performance differences exist between these equivalents.

Frequently Asked Questions (FAQ)

Q: Can CF1/4C2R2J be used as a direct replacement for CFP1/4CT52R2R2J?

A: Yes. Both parts have identical electrical specifications (2.2 Ohms ±5%, 0.25W, -450/+350 ppm/°C, -55°C to 155°C operating range) and mechanical dimensions (0.091" Dia × 0.240" L). The difference is packaging format: CF1/4C2R2J is supplied in Bulk, while CFP1/4CT52R2R2J is supplied in Cut Tape. Selection depends on assembly process requirements.

Q: What is the difference between Cut Tape and Bulk packaging?

A: Cut Tape packaging provides resistors on continuous tape suitable for automated pick-and-place assembly equipment. Bulk packaging provides loose components suitable for manual assembly or applications where tape format is not required. Electrical and mechanical performance are identical.

Q: Are all three parts ROHS3 compliant?

A: Yes. CFP1/4CT52R2R2J, CF1/4C2R2J, and CF1/4CT52R2R2J are all ROHS3 compliant and REACH unaffected.

Q: Can these resistors be used interchangeably in PCB designs?

A: Yes, provided the PCB assembly process accommodates the packaging format. Cut Tape parts (CFP1/4CT52R2R2J and CF1/4CT52R2R2J) are compatible with automated assembly. Bulk parts (CF1/4C2R2J) are compatible with manual or semi-automated assembly. All three have identical through-hole footprints and electrical performance.

Q: Which part should be selected for highest inventory availability?

A: CF1/4CT52R2R2J offers the highest inventory with 96294 pieces in stock, compared to 5860 pieces for CFP1/4CT52R2R2J and 1910 pieces for CF1/4C2R2J.

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