CFS1/2CT52R201J Equivalent & Substitute Parts

Part Overview

The CFS1/2CT52R201J is a 200 Ohm, 5% tolerance, 0.5W (1/2W) through-hole resistor manufactured by KOA Speer Electronics, Inc. in axial carbon film composition. This component is classified as Active product status with full RoHS3 compliance and REACH unaffected certification. Equivalent and substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across alternative manufacturers or packaging configurations.

Key Parameters

Parameter	Value
Resistance	200 Ohms
Tolerance	±5%
Power Rating	0.5W (1/2W)
Composition	Carbon Film
Package Type	Axial
Operating Temperature Range	-55°C to 155°C
Number of Terminations	2
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the CFS1/2CT52R201J is determined by strict equivalence across the following electrical and mechanical parameters:

Resistance Value: 200 Ohms (exact match required)
Tolerance: ±5% (exact match required)
Power Rating: 0.5W / 1/2W (exact match required)
Composition: Carbon Film (exact match required)
Package Configuration: Axial through-hole (exact match required)
Operating Temperature Range: -55°C to 155°C (minimum requirement)
Termination Count: 2 (exact match required)
Regulatory Compliance: RoHS3 Compliant, REACH Unaffected (minimum requirement)

The substitute part CF12JT200R manufactured by Stackpole Electronics Inc. meets all mandatory electrical and mechanical criteria for direct substitution. Packaging format differences (Tape & Reel versus Cut Tape) do not affect electrical or mechanical compatibility and represent logistics-level variations only.

Parameter Comparison

Parameter	CFS1/2CT52R201J (KOA Speer)	CF12JT200R (Stackpole)	Match Status
Resistance	200 Ohms	200 Ohms	Equivalent
Tolerance	±5%	±5%	Equivalent
Power Rating	0.5W (1/2W)	0.5W (1/2W)	Equivalent
Composition	Carbon Film	Carbon Film	Equivalent
Package Type	Axial	Axial	Equivalent
Operating Temperature	-55°C to 155°C	-55°C to 155°C	Equivalent
Number of Terminations	2	2	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent
Temperature Coefficient	-450/+350 ppm/°C	0/-400 ppm/°C	Different
Physical Dimensions (Diameter)	0.112" (2.85mm)	0.106" (2.70mm)	Similar
Physical Dimensions (Length)	0.248" (6.30mm)	0.335" (8.50mm)	Different
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)	Different

Engineering Selection Recommendations

Both the CFS1/2CT52R201J and CF12JT200R are Active product status components with full RoHS3 compliance and REACH unaffected certification, meeting all regulatory requirements for equivalent substitution.

The CF12JT200R substitute part maintains electrical equivalence across all critical parameters: 200 Ohm resistance, ±5% tolerance, 0.5W power rating, carbon film composition, and axial package configuration. Both components operate across the identical -55°C to 155°C temperature range and feature two terminations for through-hole mounting.

Physical dimension variations exist between the two parts. The CF12JT200R exhibits a slightly smaller diameter (0.106" versus 0.112") and greater length (0.335" versus 0.248"). These dimensional differences are within typical axial resistor manufacturing tolerances and do not affect electrical performance or standard PCB mounting practices.

Temperature coefficient specifications differ between manufacturers. The CFS1/2CT52R201J specifies -450/+350 ppm/°C while the CF12JT200R specifies 0/-400 ppm/°C. Both values fall within acceptable carbon film resistor performance ranges for general-purpose applications.

Packaging format represents a logistics distinction only. Tape & Reel (TR) and Cut Tape (CT) formats contain identical components with different presentation methods for automated or manual assembly processes.

Frequently Asked Questions (FAQ)

Q: Can CF12JT200R be used as a direct replacement for CFS1/2CT52R201J in circuit applications?

A: Yes. Both components meet identical electrical specifications: 200 Ohm resistance, ±5% tolerance, 0.5W power rating, carbon film composition, and axial through-hole configuration. Regulatory compliance (RoHS3, REACH) is equivalent across both parts.

Q: What are the physical dimension differences between these parts?

A: The CFS1/2CT52R201J measures 0.112" diameter × 0.248" length. The CF12JT200R measures 0.106" diameter × 0.335" length. Both dimensions remain within standard axial resistor specifications and accommodate typical PCB hole spacing and mounting practices.

Q: Do the different temperature coefficients affect substitution compatibility?

A: Temperature coefficient differences (-450/+350 ppm/°C versus 0/-400 ppm/°C) represent manufacturer-specific performance characteristics within carbon film resistor standards. Both specifications are acceptable for general-purpose applications operating within the -55°C to 155°C range. Application-specific thermal stability requirements should be evaluated independently.

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

A: Tape & Reel (TR) packaging presents components on continuous carrier tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) packaging presents components on cut sections of carrier tape, suitable for lower-volume or manual assembly processes. Electrical and mechanical properties of the components are identical.

Q: Are both parts RoHS3 compliant?

A: Yes. Both CFS1/2CT52R201J and CF12JT200R carry ROHS3 Compliant certification and REACH Unaffected status, meeting all applicable environmental and regulatory requirements.

Q: Can inventory availability influence substitution decisions?

A: Inventory levels represent supply chain considerations independent of electrical or mechanical equivalence. The CFS1/2CT52R201J maintains 692 pieces in stock while CF12JT200R maintains 11,893 pieces in stock. Component selection should prioritize electrical and mechanical compatibility as primary criteria.

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