RC6432F5493CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F5493CS is a 549 kOhms ±1% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package format. This thick film, moisture-resistant component is designed for general-purpose applications requiring precision resistive elements with moderate power dissipation. The part is currently in Active product status with 851 pieces available in inventory.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package category. The RC6432F5493CS has one documented substitute: the ERJ-1TNF5493U from Panasonic Electronic Components, which shares identical resistance, tolerance, power rating, and package dimensions while offering automotive-grade qualification.

Substiute Parts

RC6432F5493CS

Samsung Electro-MechanicsIn Stock: 881RC6432F5493CS Datasheet

Current PartRFQ

ERJ-1TNF5493U

Panasonic Electronic ComponentsIn Stock: 2881ERJ-1TNF5493U Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F5493CS is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 549 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 1W (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match required)

Mechanical Compatibility Requirements:

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

Compliance Requirements:

• RoHS3 Compliant status
• Moisture Sensitivity Level 1 (Unlimited)

The ERJ-1TNF5493U from Panasonic Electronic Components satisfies all electrical and mechanical equivalence criteria. Physical dimensions show minor variations within acceptable tolerances for the 2512 package category (length 6.40mm vs. 6.30mm; height 0.70mm vs. 0.66mm), which do not affect functional interchangeability in standard PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (RC6432F5493CS): The RC6432F5493CS from Samsung Electro-Mechanics is recommended for new designs and applications where component availability and active product status are priorities. This part maintains Active product status with 851 pieces in current inventory, ensuring supply chain continuity. It is ROHS3 Compliant and REACH Unaffected, meeting standard environmental and regulatory requirements for general industrial and commercial applications.

Substitute Selection (ERJ-1TNF5493U): The ERJ-1TNF5493U from Panasonic Electronic Components is electrically and mechanically equivalent and may be selected as a substitute when the RC6432F5493CS is unavailable. This part carries AEC-Q200 automotive qualification, making it suitable for automotive-grade applications requiring enhanced reliability standards. However, the ERJ-1TNF5493U is designated "Not For New Designs," indicating it is maintained for legacy system support and replacement purposes only. Selection of this substitute should be limited to applications where automotive qualification is required or where existing designs already specify this component.

Compliance Considerations: Both parts are ROHS3 Compliant with MSL Rating 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling. Both carry EAR99 ECCN classification and HTSUS code 8533.21.0030, confirming equivalent regulatory treatment.

Frequently Asked Questions (FAQ)

Q: Can the ERJ-1TNF5493U be used as a direct replacement for the RC6432F5493CS in existing designs?

A: Yes. The ERJ-1TNF5493U is electrically and mechanically equivalent across all critical parameters: 549 kOhms resistance, ±1% tolerance, 1W power rating, ±100ppm/°C temperature coefficient, -55°C to 155°C operating range, and 2512 package format. Physical dimensions vary within acceptable tolerances for the 2512 package category and do not affect PCB layout compatibility.

Q: What is the significance of the "Not For New Designs" status on the ERJ-1TNF5493U?

A: This designation indicates the ERJ-1TNF5493U is in mature or declining production phase. Panasonic maintains this part for legacy system support and component replacement in existing applications. For new product development, the RC6432F5493CS (Active status) is the preferred selection to ensure long-term supply availability.

Q: Are there any performance differences between these two parts?

A: No performance differences exist within the specified operating parameters. Both parts deliver identical electrical performance: 549 kOhms ±1% resistance, 1W power dissipation, ±100ppm/°C temperature stability, and -55°C to 155°C operating range. The ERJ-1TNF5493U includes additional AEC-Q200 automotive qualification, which represents enhanced reliability screening rather than a performance difference.

Q: What is the difference between the packaging formats listed?

A: The RC6432F5493CS is supplied in standard packaging format (not specified as Tape & Reel). The ERJ-1TNF5493U is supplied in Tape & Reel (TR) format, which is standard for automated assembly processes. Both parts use identical 2512 (6432 Metric) package dimensions and are compatible with standard pick-and-place equipment.

Q: Can these parts be used interchangeably in automotive applications?

A: The ERJ-1TNF5493U carries AEC-Q200 automotive qualification and is suitable for automotive applications. The RC6432F5493CS does not specify automotive qualification. For automotive applications, the ERJ-1TNF5493U is the appropriate selection. For non-automotive applications, both parts are functionally equivalent.

Q: What are the moisture sensitivity considerations for these parts?

A: Both parts carry MSL Rating 1 (Unlimited), indicating no moisture sensitivity restrictions. These components do not require special moisture control during storage, handling, or assembly. Standard warehouse and manufacturing conditions are acceptable.

Q: How do the physical dimensions affect PCB layout compatibility?

A: The RC6432F5493CS measures 6.30mm length × 3.20mm width × 0.66mm height (seated). The ERJ-1TNF5493U measures 6.40mm length × 3.20mm width × 0.70mm height (seated). These variations (0.10mm length, 0.04mm height) are within standard 2512 package tolerances and do not require PCB footprint modifications. Both parts use identical 2-termination configurations and are compatible with standard 2512 land patterns.