RC6432F1691CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F1691CS is a 1.69 kOhms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This thick film resistor features moisture resistance and operates across the temperature range of -55°C to 155°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained. The primary reasons for identifying alternatives include inventory availability, supply chain optimization, and design flexibility across qualified manufacturers.

Substiute Parts

RC6432F1691CS

Samsung Electro-MechanicsIn Stock: 710RC6432F1691CS Datasheet

Current PartRFQ

CRCW25121K69FKEG

Vishay DaleIn Stock: 2728CRCW25121K69FKEG Datasheet

SimilarRFQ

ERJ-1TNF1691U

Panasonic Electronic ComponentsIn Stock: 3413ERJ-1TNF1691U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F1691CS is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 1.69 kOhms (exact match)
• Tolerance: ±1% (exact match)
• Power rating: 1W (exact match)
• Temperature coefficient: ±100ppm/°C (exact match)
• Operating temperature range: -55°C to 155°C (minimum requirement)

Mechanical Compatibility Requirements:

• Package type: 2512 (6432 Metric) (exact match)
• Composition: Thick Film (exact match)
• Number of terminations: 2 (exact match)

Compliance Requirements:

• RoHS3 compliance (mandatory)
• Moisture Sensitivity Level 1 (unlimited) (mandatory)

The identified substitute parts CRCW25121K69FKEG (Vishay Dale) and ERJ-1TNF1691U (Panasonic Electronic Components) meet all electrical, mechanical, and compliance criteria. Both parts maintain identical resistance, tolerance, power rating, temperature coefficient, and operating temperature specifications. Physical dimensions remain within acceptable tolerances for PCB assembly compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: CRCW25121K69FKEG (Vishay Dale)

The CRCW25121K69FKEG is recommended as the primary substitute for new designs and ongoing production. This part maintains active product status with full electrical and mechanical equivalence to the RC6432F1691CS. The Vishay Dale CRCW series includes automotive AEC-Q200 qualification, providing additional reliability assurance for demanding applications. Inventory availability of 2716 pieces supports production continuity.

Secondary Selection: ERJ-1TNF1691U (Panasonic Electronic Components)

The ERJ-1TNF1691U provides complete electrical and mechanical compatibility with identical specifications. However, this part carries a "Not For New Designs" product status designation. The ERJ-1TNF1691U is suitable for legacy system support, field replacements, and maintenance applications where design freeze conditions apply. Current inventory of 3314 pieces is available.

Primary Part Retention: RC6432F1691CS (Samsung Electro-Mechanics)

The RC6432F1691CS remains in active production status with 682 pieces in current inventory. Continued use is appropriate for existing designs and applications where Samsung qualification is specified.

Frequently Asked Questions (FAQ)

Q: Can CRCW25121K69FKEG be used as a direct replacement for RC6432F1691CS in existing designs?

A: Yes. Both parts share identical electrical specifications (1.69 kOhms ±1%, 1W, ±100ppm/°C, -55°C to 155°C), identical package type (2512/6432 Metric), and equivalent compliance certifications (ROHS3, MSL 1). Physical dimensions are within acceptable PCB assembly tolerances.

Q: What is the significance of the "Not For New Designs" status on ERJ-1TNF1691U?

A: This designation indicates that Panasonic has classified the ERJ-1TNF1691U as a legacy product. While the part remains functionally equivalent and available in inventory, it is not recommended for incorporation into new product designs. The part is suitable for field service, repair, and maintenance of existing systems.

Q: Are there packaging differences between these substitute parts?

A: The RC6432F1691CS is supplied in standard packaging, while both CRCW25121K69FKEG and ERJ-1TNF1691U are supplied in Tape & Reel (TR) format. This difference affects handling and assembly processes but does not impact electrical or mechanical performance.

Q: Do all three parts meet automotive qualification requirements?

A: The CRCW25121K69FKEG and ERJ-1TNF1691U both carry AEC-Q200 automotive qualification. The RC6432F1691CS specifications do not explicitly reference automotive qualification in the provided data. For applications requiring automotive-grade components, CRCW25121K69FKEG is the appropriate selection.

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

A: All three parts conform to the 2512 (6432 Metric) package standard. Dimensional variations are minor: RC6432F1691CS measures 6.30mm L × 3.20mm W with 0.66mm max height; CRCW25121K69FKEG measures 6.30mm L × 3.15mm W with 0.70mm max height; ERJ-1TNF1691U measures 6.40mm L × 3.20mm W with 0.70mm max height. These variations remain within standard PCB assembly tolerances.

Q: Can these parts be intermixed in the same production batch?

A: Yes, provided the application design does not specify a single manufacturer requirement. All three parts meet identical electrical and environmental specifications. However, supply chain documentation and traceability records should clearly identify which manufacturer's part is used in each production unit.