RNF12FTC1K69 Equivalent & Substitute Parts

Part Overview

The RNF12FTC1K69 is a 1.69 kOhms ±1% 0.5W through-hole axial resistor manufactured by Stackpole Electronics Inc. This metal film resistor features flame retardant coating and safety construction, designed for applications requiring precision resistance values with tight tolerance specifications. The part is currently active in production with 1087 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same resistance value, tolerance, power rating, and package type.

Substiute Parts

RNF12FTC1K69

Stackpole Electronics IncIn Stock: 1126RNF12FTC1K69 Datasheet

Current PartRFQ

CMF551K6900FHEB

Vishay DaleIn Stock: 1738CMF551K6900FHEB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RNF12FTC1K69 is determined by strict equivalence across the following critical parameters:

• Resistance value: 1.69 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Composition: Metal Film (exact match required)
• Package: Axial through-hole (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)
• RoHS compliance: ROHS3 Compliant (minimum requirement)

The CMF551K6900FHEB from Vishay Dale meets all substitution criteria. Both parts share identical electrical specifications and axial package configuration, enabling direct functional replacement in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the RNF12FTC1K69 and CMF551K6900FHEB are active production parts with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The CMF551K6900FHEB provides an extended operating temperature range to 175°C compared to 155°C for the RNF12FTC1K69, and includes moisture resistant construction. Physical dimensions differ, with the CMF part being more compact. Selection between these parts should account for available board space and thermal environment requirements, as both maintain identical electrical performance specifications.

Frequently Asked Questions (FAQ)

Q: Can the CMF551K6900FHEB replace the RNF12FTC1K69 in existing designs?

A: Yes. Both parts share identical resistance (1.69 kOhms), tolerance (±1%), power rating (0.5W), composition (metal film), temperature coefficient (±50ppm/°C), and axial package configuration. The primary consideration is physical size, as the CMF part is more compact.

Q: What are the key differences between these substitute parts?

A: The CMF551K6900FHEB operates to 175°C versus 155°C for the RNF12FTC1K69, includes moisture resistant construction, and has smaller physical dimensions (0.090" Dia x 0.240" L versus 0.108" Dia x 0.344" L).

Q: Are both parts RoHS compliant?

A: Yes. Both the RNF12FTC1K69 and CMF551K6900FHEB are ROHS3 compliant and REACH unaffected.

Q: Does the size difference affect circuit board compatibility?

A: The CMF551K6900FHEB is physically smaller, which may provide layout advantages in space-constrained designs. Existing footprints designed for the larger RNF12FTC1K69 will accommodate the smaller CMF part, though the reverse may not apply depending on specific board layout constraints.

Q: What is the temperature coefficient significance?

A: Both parts maintain ±50ppm/°C temperature coefficient, ensuring equivalent resistance stability across temperature variations. This specification is critical for precision circuit applications.