RC6432F5491CS Equivalent & Substitute Parts

Part Overview

The RC6432F5491CS is a 5.49 kOhm ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package format. This thick film, moisture-resistant component operates across a temperature range of -55°C to 155°C and is ROHS3 compliant. The part is currently in active production status with 1101 pieces available in inventory.

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit alternative qualified sources. The ERJ-1TNF5491U from Panasonic Electronic Components serves as a direct functional equivalent, though it carries a "Not For New Designs" status and includes automotive AEC-Q200 qualification.

Substiute Parts

RC6432F5491CS

Samsung Electro-MechanicsIn Stock: 1175RC6432F5491CS Datasheet

Current PartRFQ

ERJ-1TNF5491U

Panasonic Electronic ComponentsIn Stock: 24008ERJ-1TNF5491U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F5491CS is determined by strict alignment with the following electrical and mechanical parameters:

Electrical Parameters (Non-Negotiable):

• Resistance value of exactly 5.49 kOhms
• Tolerance of ±1%
• Power rating of 1W minimum
• Temperature coefficient of ±100ppm/°C
• Operating temperature range of -55°C to 155°C

Mechanical Parameters (Non-Negotiable):

• Package format: 2512 (6432 Metric)
• Thick film composition
• Two terminations
• Moisture Sensitivity Level MSL 1

Compliance Parameters (Required):

• ROHS3 compliance
• REACH unaffected status

The ERJ-1TNF5491U from Panasonic meets all electrical and mechanical substitution criteria. Physical dimensions show minor variations (length 6.40mm vs. 6.30mm; height 0.70mm vs. 0.66mm) within acceptable tolerances for 2512 package specifications. The primary distinction is the automotive AEC-Q200 qualification present in the Panasonic part, which represents an additional feature rather than a limiting factor for general applications.

Parameter Comparison

Engineering Selection Recommendations

For Active Production Applications: The RC6432F5491CS is the preferred selection due to its active product status and current availability of 1101 pieces in inventory. This part is suitable for new designs and ongoing production requirements.

For Existing Designs or Legacy Support: The ERJ-1TNF5491U from Panasonic Electronic Components is a functionally equivalent substitute. Although designated "Not For New Designs," this part meets all electrical and mechanical specifications required for the 5.49 kOhm 1W 2512 resistor function. The automotive AEC-Q200 qualification provides additional reliability assurance for applications requiring enhanced quality standards. Panasonic inventory availability of 23,980 pieces supports high-volume requirements.

Compliance Considerations: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current manufacturing standards. The MSL 1 rating for both components eliminates moisture sensitivity concerns during standard handling and storage procedures.

Physical Compatibility: Minor dimensional variations between the two parts (length difference of 0.10mm, height difference of 0.04mm) fall within standard 2512 package tolerances and do not affect PCB footprint compatibility or assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-1TNF5491U replace the RC6432F5491CS in existing circuit designs?

A: Yes. The ERJ-1TNF5491U meets all critical electrical parameters: 5.49 kOhm resistance, ±1% tolerance, 1W power rating, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Physical dimensions are compatible with 2512 package specifications. Both parts are ROHS3 compliant and MSL 1 rated.

Q: What is the significance of the "Not For New Designs" status on the Panasonic part?

A: This designation indicates that Panasonic has classified the ERJ-1TNF5491U as a legacy or mature product not recommended for incorporation into new circuit designs. However, the part remains functionally qualified and available for replacement, repair, and legacy system support applications.

Q: Are there dimensional differences that affect PCB assembly?

A: The ERJ-1TNF5491U is 0.10mm longer (6.40mm vs. 6.30mm) and 0.04mm taller (0.70mm vs. 0.66mm) than the RC6432F5491CS. These variations are within standard 2512 package tolerances and do not require PCB footprint modifications or assembly process changes.

Q: Do both parts require the same handling procedures?

A: Yes. Both components carry MSL 1 (Unlimited) moisture sensitivity ratings, eliminating special moisture control requirements during storage, handling, and assembly. Standard ESD precautions apply to both parts.

Q: What is the automotive AEC-Q200 qualification on the Panasonic part?

A: AEC-Q200 is an automotive industry standard qualification that certifies component reliability under automotive operating conditions. This qualification is present on the ERJ-1TNF5491U but not specified for the RC6432F5491CS. The presence of this qualification does not restrict use in non-automotive applications.

Q: Can I use either part interchangeably in my design?

A: Electrical and mechanical interchangeability is confirmed. Selection between the two parts should be based on availability, supply chain requirements, and product status considerations. The RC6432F5491CS is preferred for new designs due to active status. The ERJ-1TNF5491U is suitable for existing designs and applications where supply of the primary part is constrained.

Q: Are there any compliance or regulatory differences between the two parts?

A: No. Both parts are ROHS3 compliant and REACH unaffected. Regulatory compliance is equivalent for both components in current manufacturing standards.