RNF12FTC33K2 Equivalent & Substitute Parts

Part Overview

The RNF12FTC33K2 is a 33.2 kOhms ±1% metal film axial through-hole resistor rated at 0.5W (1/2W) manufactured by Stackpole Electronics Inc. This component features flame retardant coating and safety-grade construction, designed for applications requiring precision resistance values with reliable performance across industrial temperature ranges. The part maintains Active product status with robust inventory availability. Substitute parts are identified to provide design flexibility, alternative sourcing options, and compatibility with equivalent electrical and mechanical specifications.

Substiute Parts

RNF12FTC33K2

Stackpole Electronics IncIn Stock: 1115RNF12FTC33K2 Datasheet

Current PartRFQ

CMF5533K200FHEB

Vishay DaleIn Stock: 2268CMF5533K200FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RNF12FTC33K2 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

• Resistance value: 33.2 kOhms (exact match required)
• Tolerance: ±1% (precision grade equivalence)
• Power rating: 0.5W / 1/2W (thermal handling capacity)
• Composition: Metal film (electrical performance characteristics)
• Package: Axial through-hole (mechanical fit and PCB compatibility)
• Temperature coefficient: ±50ppm/°C (stability specification)
• Regulatory compliance: ROHS3 Compliant, REACH Unaffected (environmental standards)

The CMF5533K200FHEB from Vishay Dale meets all substitution criteria with identical electrical specifications and equivalent mechanical form factor, enabling direct functional replacement in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC33K2 and CMF5533K200FHEB maintain Active product status with full ROHS3 compliance and REACH unaffected certification, confirming regulatory alignment for current and future applications. The CMF5533K200FHEB provides an extended operating temperature range (-55°C ~ 175°C versus -55°C ~ 155°C) and includes moisture-resistant features, offering enhanced environmental protection in applications subject to humidity exposure. Physical dimensions differ slightly, with the Vishay Dale component featuring a more compact profile (0.090" diameter versus 0.108" diameter). Both components are suitable for direct substitution in circuits where the RNF12FTC33K2 is specified, provided PCB layout accommodates the dimensional variance and packaging format (Cut Tape versus Tape & Reel) aligns with procurement and assembly workflows.

Frequently Asked Questions (FAQ)

Q: Can the CMF5533K200FHEB replace the RNF12FTC33K2 in existing designs?

A: Yes. Both components share identical electrical specifications (33.2 kOhms ±1%, 0.5W, ±50ppm/°C, metal film construction). The substitute meets all functional requirements for direct circuit replacement. Physical dimensions differ slightly; verify PCB hole spacing and component clearance accommodate the 0.090" diameter (versus 0.108" diameter) of the substitute.

Q: What is the significance of the extended temperature range in the CMF5533K200FHEB?

A: The CMF5533K200FHEB operates to 175°C maximum, compared to 155°C for the RNF12FTC33K2. This extended range provides additional thermal margin in high-temperature applications. Both components maintain ±50ppm/°C temperature coefficient stability within their respective operating ranges.

Q: How do packaging formats affect component selection?

A: The RNF12FTC33K2 is supplied in Tape & Reel (TR) format; the CMF5533K200FHEB is supplied in Cut Tape (CT) format. Tape & Reel packaging is optimized for high-volume automated assembly; Cut Tape is suitable for lower-volume or manual assembly workflows. Electrical performance is identical; selection depends on procurement volume and assembly process requirements.

Q: Are both components compliant with current environmental regulations?

A: Yes. Both the RNF12FTC33K2 and CMF5533K200FHEB are ROHS3 Compliant and REACH Unaffected, meeting current environmental and hazardous substance restrictions for commercial and industrial applications.

Q: What is the practical difference in physical size between these components?

A: The RNF12FTC33K2 measures 0.108" diameter × 0.344" length; the CMF5533K200FHEB measures 0.090" diameter × 0.240" length. The substitute is more compact in both dimensions. Verify PCB layout accommodates the smaller profile and confirm lead spacing remains compatible with existing hole patterns.