RNF14FAC2K00 Equivalent & Substitute Parts

Part Overview

The RNF14FAC2K00 is a 2 kOhms ±1% 0.25W axial through-hole resistor manufactured by Stackpole Electronics Inc. This metal film resistor features flame retardant coating and safety construction, designed for general-purpose applications requiring precision resistance values. The part is active and in production with ROHS3 compliance. Substitute parts are identified when original stock is unavailable, when packaging format changes are acceptable, or when upgraded electrical specifications meet application requirements without circuit redesign.

Key Parameters

Parameter	Value
Resistance	2 kOhms
Tolerance	±1%
Power Rating	0.25W (1/4W)
Composition	Metal Film
Package Type	Axial
Temperature Coefficient	±50ppm/°C
Operating Temperature Range	-55°C to 155°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Direct Substitutes (Same Electrical Specifications):

Resistance value: 2 kOhms (exact match required)
Tolerance: ±1% (exact match required)
Power rating: 0.25W minimum (equal or higher acceptable)
Composition: Metal film (required for performance consistency)
Package: Axial through-hole (required for mechanical compatibility)

Upgrade Substitutes (Enhanced Specifications):

Higher power rating (0.5W vs. 0.25W) with same resistance and tolerance
Improved tolerance (±0.1% vs. ±1%) with same resistance and power rating
Better temperature coefficient (±25ppm/°C vs. ±50ppm/°C)
Extended operating temperature range (-55°C to 175°C vs. -55°C to 155°C)
Enhanced moisture resistance features

All substitute parts maintain axial package format, metal film composition, flame retardant coating, and ROHS3 compliance.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Operating Temp (°C)	Size (mm)	Packaging	Stock (Pcs)
RNF14FAC2K00	Stackpole Electronics Inc	2 kOhms	±1%	0.25	±50	-55 to 155	2.35 x 6.35	Tape & Box	706
RNMF14FTC2K00	Stackpole Electronics Inc	2 kOhms	±1%	0.25	±50	-55 to 155	1.78 x 3.30	Cut Tape	68963
CMF502K0000FHEB	Vishay Dale	2 kOhms	±1%	0.25	±50	-55 to 175	1.65 x 3.81	Cut Tape	4705
CMF552K0000FHEB	Vishay Dale	2 kOhms	±1%	0.5	±50	-55 to 175	2.29 x 6.10	Cut Tape	13537
CMF552K0000BEEB	Vishay Dale	2 kOhms	±0.1%	0.5	±25	-55 to 175	2.29 x 6.10	Cut Tape	7780
CMF552K0000BHEB	Vishay Dale	2 kOhms	±0.1%	0.5	±50	-55 to 175	2.29 x 6.10	Cut Tape	22774

Engineering Selection Recommendations

Direct Replacement (Identical Specifications): RNMF14FTC2K00 from Stackpole Electronics Inc is the manufacturer-recommended direct substitute. It maintains all electrical specifications of the RNF14FAC2K00 while offering significantly higher stock availability (68,963 pcs vs. 706 pcs). The primary difference is packaging format (Cut Tape vs. Tape & Box) and physical dimensions (smaller form factor). Both parts are ROHS3 compliant and active products.

Same-Specification Alternative (Different Manufacturer): CMF502K0000FHEB from Vishay Dale provides identical electrical specifications (2 kOhms ±1% 0.25W) with extended operating temperature range (-55°C to 175°C vs. -55°C to 155°C). This part is ROHS3 compliant and active. Physical dimensions differ slightly (1.65 x 3.81mm vs. 2.35 x 6.35mm).

Upgraded Specifications (Higher Power Rating): CMF552K0000FHEB from Vishay Dale offers doubled power rating (0.5W vs. 0.25W) while maintaining 2 kOhms ±1% resistance and ±50ppm/°C temperature coefficient. Extended operating temperature range to 175°C. ROHS3 compliant and active. Suitable for applications requiring higher power dissipation capability.

Upgraded Specifications (Improved Tolerance & Temperature Coefficient): CMF552K0000BEEB and CMF552K0000BHEB from Vishay Dale both provide 0.5W power rating with improved tolerance (±0.1% vs. ±1%). CMF552K0000BEEB additionally offers superior temperature coefficient (±25ppm/°C vs. ±50ppm/°C). Both extend operating temperature to 175°C and are ROHS3 compliant. These parts support applications requiring tighter resistance tolerances and improved thermal stability.

All substitute parts maintain metal film composition, axial package format, flame retardant coating, and safety construction consistent with the original specification.

Frequently Asked Questions (FAQ)

Q: Can RNMF14FTC2K00 replace RNF14FAC2K00 directly in my circuit? A: Yes. RNMF14FTC2K00 is the manufacturer-recommended direct substitute with identical electrical specifications (2 kOhms ±1% 0.25W). The only differences are packaging format and physical size. Verify that the smaller form factor (1.78 x 3.30mm vs. 2.35 x 6.35mm) fits your PCB layout.

Q: What is the difference between the Stackpole and Vishay Dale substitutes? A: Stackpole RNF and RNMF series are direct equivalents. Vishay Dale CMF series offers the same resistance and tolerance but with enhanced features including moisture resistance, extended temperature range to 175°C, and higher stock availability. All maintain ROHS3 compliance and metal film construction.

Q: Can I use CMF552K0000FHEB (0.5W) instead of RNF14FAC2K00 (0.25W)? A: Yes. The 0.5W rating is a higher specification that maintains all other electrical parameters (2 kOhms ±1% resistance, ±50ppm/°C temperature coefficient). Higher power rating does not negatively affect circuit performance. Physical dimensions differ slightly (2.29 x 6.10mm vs. 2.35 x 6.35mm).

Q: What does ±0.1% tolerance mean compared to ±1%? A: ±0.1% tolerance (CMF552K0000BEEB and CMF552K0000BHEB) provides tighter resistance accuracy than ±1%. For a 2 kOhm resistor, ±0.1% tolerance allows ±2 ohms variation versus ±20 ohms with ±1% tolerance. Use upgraded tolerance parts only if your circuit design requires this precision.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts (RNMF14FTC2K00, CMF502K0000FHEB, CMF552K0000FHEB, CMF552K0000BEEB, CMF552K0000BHEB) are ROHS3 compliant and active products.

Q: What is the impact of different packaging formats (Tape & Box vs. Cut Tape)? A: Tape & Box packaging is suitable for manual assembly and small-volume production. Cut Tape packaging is optimized for automated pick-and-place equipment. Electrical performance is identical. Select based on your assembly process requirements.

Q: Can I mix different substitute parts in the same design? A: Yes, provided all parts meet your circuit's minimum specifications. Mixing parts with different tolerances (±1% vs. ±0.1%) or power ratings (0.25W vs. 0.5W) is acceptable if the circuit design accommodates the widest tolerance and lowest power rating used.

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