RNF14CTC3K32 Equivalent & Substitute Parts

Part Overview

The RNF14CTC3K32 is a 3.32 kOhms ±0.25% metal film axial through-hole resistor rated at 0.25W (1/4W) manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety-grade construction, designed for applications requiring precision resistance values in compact axial packages. The part maintains Active product status with 1068 units in current inventory. Substitute parts are identified when equivalent resistance values, compatible package formats, and acceptable tolerance specifications are required for design flexibility, supply chain optimization, or performance enhancement.

Substiute Parts

RNF14CTC3K32

Stackpole Electronics IncIn Stock: 1106RNF14CTC3K32 Datasheet

Current PartRFQ

CMF553K3200BEEB

Vishay DaleIn Stock: 2605CMF553K3200BEEB Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF14CTC3K32 is determined by the following critical parameters:

Primary Substitution Criteria:

• Resistance value must equal 3.32 kOhms
• Package format must be Axial (through-hole compatible)
• Composition must be Metal Film
• Tolerance must be equal to or tighter than ±0.25%
• Power rating must be equal to or greater than 0.25W
• Operating temperature range must encompass or exceed -55°C to 155°C
• RoHS3 compliance required

The CMF553K3200BEEB from Vishay Dale meets all substitution criteria with enhanced specifications in power rating (0.5W vs 0.25W), tolerance (±0.1% vs ±0.25%), and temperature coefficient (±25ppm/°C vs ±50ppm/°C).

Parameter Comparison

Engineering Selection Recommendations

The CMF553K3200BEEB qualifies as a direct substitute for the RNF14CTC3K32 based on matching resistance value, identical package format, and superior electrical specifications. Both components maintain ROHS3 compliance and Active product status. The substitute part offers enhanced performance characteristics: higher power dissipation capability (0.5W vs 0.25W), tighter tolerance (±0.1% vs ±0.25%), improved temperature stability (±25ppm/°C vs ±50ppm/°C), and extended operating temperature range (-55°C to 175°C vs -55°C to 155°C). Physical dimensions are compatible with standard axial through-hole PCB layouts. Selection between these parts depends on application requirements for power handling, tolerance precision, and thermal performance rather than functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can CMF553K3200BEEB replace RNF14CTC3K32 in existing designs? A: Yes. Both components share identical resistance value (3.32 kOhms), metal film composition, and axial package format. The substitute meets or exceeds all electrical specifications of the original part.

Q: What are the physical compatibility considerations? A: The CMF553K3200BEEB is slightly smaller (0.090" Dia x 0.240" L vs 0.093" Dia x 0.250" L). Both fit standard axial through-hole PCB footprints without modification. Verify PCB hole spacing accommodates the axial lead configuration.

Q: Does the higher power rating of CMF553K3200BEEB affect circuit operation? A: No. A higher power rating (0.5W vs 0.25W) indicates greater thermal capacity and does not alter electrical behavior. The component will operate identically in circuits designed for 0.25W resistors.

Q: Are tolerance differences significant for circuit function? A: The CMF553K3200BEEB tolerance (±0.1%) is tighter than the RNF14CTC3K32 (±0.25%). This provides improved precision but does not prevent substitution. Applications requiring the original ±0.25% tolerance will function with the tighter tolerance substitute.

Q: What is the impact of different temperature coefficients? A: The CMF553K3200BEEB exhibits superior temperature stability (±25ppm/°C vs ±50ppm/°C). This means resistance value changes less with temperature variations, beneficial for precision circuits. Circuits designed for ±50ppm/°C will operate within specification with the improved substitute.

Q: Are packaging formats compatible? A: Both parts use Axial through-hole packages. Packaging differs in delivery format (Tape & Reel vs Cut Tape) but does not affect component compatibility or PCB assembly.

Q: Do both parts meet the same compliance standards? A: Yes. Both RNF14CTC3K32 and CMF553K3200BEEB are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export purposes.