RNF12BTC1K00 Equivalent & Substitute Parts

Part Overview

The RNF12BTC1K00 is a 1 kOhms ±0.1% 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 construction, designed for precision applications requiring tight tolerance specifications. The part is currently active in production with 778 units in stock. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance can be maintained across alternative manufacturers.

Substiute Parts

RNF12BTC1K00

Stackpole Electronics IncIn Stock: 813RNF12BTC1K00 Datasheet

Current PartRFQ

CMF551K0000BHEB

Vishay DaleIn Stock: 3207CMF551K0000BHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF12BTC1K00 is determined by the following critical parameters:

• Resistance value: 1 kOhms (exact match required)
• Tolerance: ±0.1% (exact match required)
• Power rating: 0.5W minimum (equal or higher acceptable)
• Composition: Metal film (required for performance characteristics)
• Package: Axial through-hole (mechanical compatibility)
• Temperature coefficient: ±50ppm/°C or better
• Operating temperature range: Must support -55°C minimum
• Regulatory compliance: ROHS3 and REACH status alignment

The CMF551K0000BHEB from Vishay Dale meets all substitution criteria with identical electrical specifications and enhanced operating temperature range capability.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12BTC1K00 and CMF551K0000BHEB are active production components with full ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications.

The CMF551K0000BHEB provides an extended operating temperature range to 175°C compared to the RNF12BTC1K00's 155°C maximum, with the addition of moisture resistant construction. These characteristics make the Vishay Dale component suitable for applications requiring enhanced environmental performance while maintaining identical electrical specifications.

Physical dimensions differ between the two parts: the RNF12BTC1K00 measures 0.108" diameter × 0.344" length, while the CMF551K0000BHEB measures 0.090" diameter × 0.240" length. Both are axial through-hole packages compatible with standard PCB layouts, though the smaller profile of the Vishay component may provide space advantages in compact designs.

Frequently Asked Questions (FAQ)

Q: Can the CMF551K0000BHEB directly replace the RNF12BTC1K00 in existing designs?

A: Yes. Both components share identical resistance (1 kOhms), tolerance (±0.1%), power rating (0.5W), temperature coefficient (±50ppm/°C), and axial package configuration. The CMF551K0000BHEB's extended temperature range and moisture resistance provide equal or superior performance in equivalent applications.

Q: What are the physical dimension differences between these parts?

A: The RNF12BTC1K00 is 0.108" diameter × 0.344" length. The CMF551K0000BHEB is 0.090" diameter × 0.240" length. The smaller Vishay component may fit more compactly on PCBs with tighter spacing constraints.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the RNF12BTC1K00 and CMF551K0000BHEB are ROHS3 compliant and REACH unaffected, meeting current environmental and safety regulations for electronic component distribution and use.

Q: What is the significance of the moisture resistant feature on the CMF551K0000BHEB?

A: Moisture resistant construction provides enhanced protection in humid or high-moisture environments. This feature is not present on the RNF12BTC1K00 but does not prevent substitution in standard applications where moisture exposure is not a primary design concern.

Q: Do packaging format differences affect substitution?

A: The RNF12BTC1K00 is supplied in Tape & Reel (TR) format, while the CMF551K0000BHEB is supplied in Cut Tape (CT) format. Both are standard axial through-hole packages suitable for automated and manual assembly processes. Packaging format does not affect electrical or mechanical compatibility.