CPF0603F23K7C1 Equivalent & Substitute Parts

Part Overview

The CPF0603F23K7C1 is a 23.7 kOhms ±1% thin film chip resistor manufactured by TE Connectivity Passive Product in the 0603 (1608 Metric) package format. This surface-mount device is rated for 0.063W (1/16W) power dissipation and operates across the temperature range of -55°C to 155°C. The component is classified as Active product status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts are necessary when the original component becomes unavailable, when design requirements demand enhanced specifications such as improved tolerance or higher power ratings, or when supply chain optimization requires alternative qualified sources from different manufacturers.

Key Parameters

Parameter	Value	Criticality for Substitution
Resistance Value	23.7 kOhms	Critical - Must match exactly
Tolerance	±1%	Critical - Determines circuit accuracy
Power Rating	0.063W (1/16W)	Critical - Minimum thermal requirement
Package / Case	0603 (1608 Metric)	Critical - PCB footprint compatibility
Composition	Thin Film	Important - Affects stability and temperature coefficient
Temperature Coefficient	±50ppm/°C	Important - Affects performance across temperature range
Operating Temperature Range	-55°C to 155°C	Important - Application environment compatibility
RoHS Status	RoHS3 Compliant	Important - Regulatory compliance requirement

Substitute Part Grouping Explanation

Substitution logic for the CPF0603F23K7C1 is based on maintaining electrical and mechanical compatibility within the following parameters:

Critical Matching Parameters:

Resistance value: 23.7 kOhms (exact match required)
Package format: 0603 (1608 Metric) with 2 terminations
Composition: Thin film construction
RoHS3 compliance status

Acceptable Variation Parameters:

Tolerance: ±1% or better (tighter tolerance acceptable)
Power rating: 0.063W minimum (higher ratings acceptable)
Temperature coefficient: ±50ppm/°C or better (lower values acceptable)
Operating temperature range: -55°C to 155°C minimum (extended ranges acceptable)

Substitute parts are grouped into two categories:

Direct Equivalents (Same Specifications): Parts matching the original ±1% tolerance and 0.063W power rating with identical or superior temperature coefficients.

Upgraded Substitutes (Enhanced Specifications): Parts with improved tolerance (±0.1% or ±0.5%), higher power ratings (0.1W), or superior temperature coefficients (±25ppm/°C), which provide enhanced performance while maintaining full backward compatibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Temp Range (°C)	Package	RoHS3
CPF0603F23K7C1	TE Connectivity	23.7 kΩ	±1%	0.063	±50	-55 to 155	0603	Yes
ERA-3AEB2372V	Panasonic	23.7 kΩ	±0.1%	0.1	±25	-55 to 155	0603	Yes
MCT06030C2372FP500	Vishay Beyschlag	23.7 kΩ	±1%	0.1	±50	-55 to 155	0603	Yes
RG1608P-2372-B-T5	Susumu	23.7 kΩ	±0.1%	0.1	±25	-55 to 155	0603	Yes
RR0816P-2372-D-37C	Susumu	23.7 kΩ	±0.5%	0.063	±25	-55 to 125	0603	Yes
RT0603BRD0723K7L	YAGEO	23.7 kΩ	±0.1%	0.1	±25	-55 to 155	0603	Yes
RT0603BRE0723K7L	YAGEO	23.7 kΩ	±0.1%	0.1	±50	-55 to 155	0603	Yes
RT0603DRD0723K7L	YAGEO	23.7 kΩ	±0.5%	0.1	±25	-55 to 155	0603	Yes
RT0603DRE0723K7L	YAGEO	23.7 kΩ	±0.5%	0.1	±50	-55 to 155	0603	Yes
RT0603FRE0723K7L	YAGEO	23.7 kΩ	±1%	0.1	±50	-55 to 155	0603	Yes

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications):

RT0603FRE0723K7L (YAGEO) serves as the primary direct equivalent, matching the original ±1% tolerance and 0.063W power rating while providing 0.1W capability. This part maintains identical electrical specifications with superior inventory availability (10,458 units in stock) and full RoHS3 compliance.

MCT06030C2372FP500 (Vishay Beyschlag) provides an alternative direct replacement with identical tolerance and temperature coefficient, offering anti-sulfur construction and higher power rating (0.1W) for enhanced thermal margin.

For Upgraded Performance (Enhanced Specifications):

ERA-3AEB2372V (Panasonic) offers ±0.1% tolerance with automotive AEC-Q200 qualification, superior temperature coefficient (±25ppm/°C), and 0.1W power rating. This part is suitable for applications requiring tighter tolerance control and automotive-grade reliability.

RG1608P-2372-B-T5 (Susumu) combines ±0.1% tolerance, AEC-Q200 automotive qualification, anti-sulfur construction, and ±25ppm/°C temperature coefficient. This part is appropriate for automotive and high-reliability applications.

RT0603BRD0723K7L (YAGEO) provides ±0.1% tolerance with ±25ppm/°C temperature coefficient and 0.1W power rating, suitable for precision circuit applications requiring improved accuracy.

For Cost-Optimized Selection (Relaxed Tolerance):

RT0603DRD0723K7L or RT0603DRE0723K7L (YAGEO) offer ±0.5% tolerance with 0.1W power rating. These parts are suitable for non-critical applications where tolerance relaxation is acceptable.

RR0816P-2372-D-37C (Susumu) matches the original 0.063W power rating with ±0.5% tolerance and superior ±25ppm/°C temperature coefficient, though operating temperature range is limited to -55°C to 125°C.

Compliance and Certification:

All substitute parts maintain RoHS3 compliance and MSL 1 (unlimited moisture sensitivity level) status. ERA-3AEB2372V and RG1608P-2372-B-T5 carry AEC-Q200 automotive qualification, appropriate for automotive and mission-critical applications.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher power rating than the original?

A: Yes. A substitute with higher power rating (0.1W instead of 0.063W) is fully compatible and provides improved thermal margin. The higher power rating does not affect circuit operation and allows the component to dissipate more heat without degradation.

Q: What is the difference between ±1%, ±0.5%, and ±0.1% tolerance?

A: Tolerance specifies the maximum deviation from the nominal 23.7 kOhms value. ±1% allows ±237 ohms deviation, ±0.5% allows ±118.5 ohms deviation, and ±0.1% allows ±23.7 ohms deviation. Tighter tolerance (lower percentage) provides greater circuit accuracy and is suitable for precision applications. All tolerances are acceptable substitutes for the original ±1% specification.

Q: Does temperature coefficient affect my circuit?

A: Temperature coefficient (ppm/°C) indicates how much the resistance changes per degree Celsius. The original part has ±50ppm/°C; substitute parts with ±25ppm/°C or ±50ppm/°C are both acceptable. Lower temperature coefficient values provide better stability across temperature variations. Selection depends on application sensitivity to resistance drift over temperature.

Q: Are all substitute parts in the same 0603 package?

A: Yes. All substitute parts listed use the 0603 (1608 Metric) package format with identical footprint dimensions (0.063" L x 0.031" W, 1.60mm x 0.80mm) and 2 terminations. Physical compatibility with PCB layouts is maintained across all substitutes.

Q: What does AEC-Q200 qualification mean?

A: AEC-Q200 is an automotive industry standard qualification for passive components. Parts carrying this certification (ERA-3AEB2372V and RG1608P-2372-B-T5) have undergone rigorous testing for automotive applications and are suitable for use in automotive and high-reliability environments.

Q: Can I substitute a part with lower operating temperature range?

A: The original part operates from -55°C to 155°C. RR0816P-2372-D-37C operates from -55°C to 125°C, which is a reduced upper temperature limit. This substitute is acceptable only if your application does not require operation above 125°C. All other substitutes maintain the full -55°C to 155°C range.

Q: What does anti-sulfur construction mean?

A: Anti-sulfur construction (featured in MCT06030C2372FP500 and RG1608P-2372-B-T5) provides enhanced resistance to sulfur contamination in industrial environments. This feature is beneficial for applications exposed to sulfur-containing atmospheres but is not required for standard applications.

Q: Are all parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance status, meeting environmental and regulatory requirements for lead-free and restricted substance compliance.

Q: What inventory levels should I consider?

A: Current inventory availability ranges from 5,635 to 23,769 units across substitute parts. RT0603BRD0723K7L (23,260 units), ERA-3AEB2372V (23,769 units), and RT0603FRE0723K7L (10,458 units) offer the highest availability for immediate procurement.

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