RNF14BTC20K0 Equivalent & Substitute Parts

Part Overview

The RNF14BTC20K0 is a 20 kOhms ±0.1% metal film axial resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This through-hole component features flame retardant coating and safety construction, designed for precision applications requiring tight tolerance specifications. The part is currently active in production with 777 units in stock inventory.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same resistance value, tolerance class, and axial package format, while accommodating variations in power rating, packaging type, and temperature coefficient within acceptable engineering parameters.

Key Parameters

Parameter	Value
Resistance	20 kOhms
Tolerance	±0.1%
Power Rating	0.25W (1/4W)
Composition	Metal Film
Package Type	Axial
Operating Temperature Range	-55°C ~ 155°C
Temperature Coefficient	±50ppm/°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the RNF14BTC20K0 are qualified based on the following criteria:

Mandatory Matching Parameters:

Resistance value: 20 kOhms
Tolerance: ±0.1%
Composition: Metal Film
Package: Axial through-hole
RoHS compliance: ROHS3 Compliant

Allowable Variations:

Power rating: Upgrades from 0.25W to 0.5W are acceptable as they provide increased thermal capacity without reducing performance
Packaging format: Cut Tape (CT) and Bulk packaging are functionally equivalent to Tape & Reel (TR) for component selection
Temperature coefficient: Variations between ±25ppm/°C and ±50ppm/°C are acceptable within the precision tolerance class
Operating temperature upper limit: Extension from 155°C to 175°C provides enhanced thermal margin

All substitute parts are manufactured by Vishay Dale under the CMF series designation and maintain active product status.

Parameter Comparison

Parameter	RNF14BTC20K0 (Main)	CMF5520K000BEEB	CMF5520K000BEEK	CMF5520K000BHEB
Manufacturer	Stackpole Electronics Inc	Vishay Dale	Vishay Dale	Vishay Dale
Resistance	20 kOhms	20 kOhms	20 kOhms	20 kOhms
Tolerance	±0.1%	±0.1%	±0.1%	±0.1%
Power Rating	0.25W	0.5W	0.5W	0.5W
Composition	Metal Film	Metal Film	Metal Film	Metal Film
Temperature Coefficient	±50ppm/°C	±25ppm/°C	±25ppm/°C	±50ppm/°C
Operating Temperature	-55°C ~ 155°C	-55°C ~ 175°C	-55°C ~ 175°C	-55°C ~ 175°C
Package	Axial	Axial	Axial	Axial
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)	Bulk	Cut Tape (CT)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Inventory Status	777 Pcs	6460 Pcs	783 Pcs	2331 Pcs

Engineering Selection Recommendations

All three substitute parts maintain ROHS3 compliance and active product status equivalent to the RNF14BTC20K0. Selection between substitute options depends on packaging and delivery requirements:

CMF5520K000BEEB provides the highest inventory availability at 6460 units and is supplied in Cut Tape format, suitable for automated assembly processes.

CMF5520K000BEEK is supplied in Bulk packaging with 783 units available, appropriate for manual assembly or custom kit configurations.

CMF5520K000BHEB offers intermediate inventory at 2331 units in Cut Tape format with temperature coefficient matching the original specification at ±50ppm/°C.

The 0.5W power rating upgrade across all substitutes provides thermal margin improvement without electrical performance degradation. Extended operating temperature to 175°C enhances reliability in elevated ambient conditions.

Frequently Asked Questions (FAQ)

Q: Can CMF5520K000BEEB, CMF5520K000BEEK, and CMF5520K000BHEB be used interchangeably with RNF14BTC20K0?

A: Yes. All three parts share identical resistance (20 kOhms), tolerance (±0.1%), composition (metal film), and axial package configuration. The 0.5W power rating represents an upgrade that maintains circuit compatibility while providing increased thermal capacity.

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

A: Cut Tape (CT) packaging is pre-cut and typically used for automated pick-and-place assembly. Bulk packaging contains loose components suitable for manual assembly or custom kit preparation. Both formats contain identical components; packaging format selection depends on assembly methodology.

Q: Does the higher power rating affect circuit performance?

A: No. The 0.5W rating indicates increased thermal dissipation capability. In circuits designed for 0.25W operation, the substitute parts will operate at lower stress levels, improving reliability without altering electrical characteristics.

Q: Are there dimensional compatibility concerns?

A: The substitute parts maintain axial package format with comparable dimensions (0.090" Dia x 0.240" L versus 0.093" Dia x 0.250" L). These minor variations are within standard PCB footprint tolerances for axial through-hole components.

Q: What is the significance of temperature coefficient differences?

A: CMF5520K000BEEB and CMF5520K000BEEK feature ±25ppm/°C, providing superior temperature stability compared to the original ±50ppm/°C specification. CMF5520K000BHEB maintains the original ±50ppm/°C coefficient. Both are acceptable within the ±0.1% tolerance class.

Q: Are all parts RoHS compliant?

A: Yes. The RNF14BTC20K0 and all three substitute parts are ROHS3 compliant, meeting current environmental and regulatory requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message