RC6432J301CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432J301CS is a 300 Ohms ±5% 1W thick film chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This component is classified as Active product status with moisture-resistant properties, operating across the temperature range of -55°C to 155°C. The part is ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Equivalent and substitute parts are identified based on matching or exceeding the electrical and mechanical specifications of the main part. Substitutes are necessary when the primary part experiences supply constraints, inventory limitations, or when design requirements permit tolerance or power rating upgrades.

Substiute Parts

RC6432J301CS

Samsung Electro-MechanicsIn Stock: 900RC6432J301CS Datasheet

Current PartRFQ

3521300RFT

TE Connectivity Passive ProductIn Stock: 1126593521300RFT Datasheet

DirectRFQ

RC2512JK-07300RL

YAGEOIn Stock: 12873RC2512JK-07300RL Datasheet

DirectRFQ

AC2512FK-07300RL

YAGEOIn Stock: 1122AC2512FK-07300RL Datasheet

UpgradeRFQ

ERJ-1TNF3000U

Panasonic Electronic ComponentsIn Stock: 21081ERJ-1TNF3000U Datasheet

UpgradeRFQ

RC2512FK-07300RL

YAGEOIn Stock: 5285RC2512FK-07300RL Datasheet

UpgradeRFQ

RMCF2512FT300R

Stackpole Electronics IncIn Stock: 28790RMCF2512FT300R Datasheet

UpgradeRFQ

AC2512JK-07300RL

YAGEOIn Stock: 8278AC2512JK-07300RL Datasheet

SimilarRFQ

CRCW2512300RFKEG

Vishay DaleIn Stock: 8216CRCW2512300RFKEG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution logic for the RC6432J301CS is based on the following criteria:

Direct Equivalents maintain identical electrical specifications: 300 Ohms resistance, ±5% tolerance, 1W power rating, and 2512 package format. These parts are interchangeable without circuit redesign.

Upgrade Substitutes improve upon the main part specifications while maintaining package compatibility and operating temperature range. Upgrades include:

• Tolerance improvement from ±5% to ±1%
• Power rating increase from 1W to 2W
• Addition of automotive AEC-Q200 certification

Similar Substitutes match the core electrical specifications (300 Ohms, 1W, 2512 package) but introduce additional features such as automotive qualification or enhanced tolerance, suitable for applications where these enhancements are beneficial but not mandatory.

All substitute parts maintain:

• 2512 (6432 Metric) package compatibility
• ±100ppm/°C temperature coefficient
• -55°C to 155°C operating temperature range
• ROHS3 compliance
• MSL 1 (Unlimited) moisture sensitivity rating
• 2 terminations

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No Circuit Modification Required):

RC2512JK-07300RL (YAGEO) is the primary direct equivalent, offering identical electrical specifications to the RC6432J301CS with higher inventory availability (12,853 pcs). Both parts maintain ±5% tolerance, 1W power rating, moisture-resistant thick film composition, and 2512 package format. This part is suitable for immediate substitution in active production designs.

For Tolerance-Improved Applications:

RC2512FK-07300RL (YAGEO) and RMCF2512FT300R (Stackpole Electronics Inc) upgrade tolerance from ±5% to ±1% while maintaining 1W power rating and 2512 package compatibility. RMCF2512FT300R provides the highest inventory level (28,723 pcs) among 1% tolerance options and carries Active product status with AEC-Q200 automotive qualification.

For Automotive-Qualified Applications:

AC2512JK-07300RL (YAGEO) maintains the original ±5% tolerance and 1W rating while adding AEC-Q200 automotive certification and moisture-resistant properties. This part is suitable for automotive or harsh-environment applications requiring qualification standards.

AC2512FK-07300RL (YAGEO) combines ±1% tolerance improvement with AEC-Q200 automotive qualification and moisture resistance, though inventory is limited (1,026 pcs).

For Power Rating Upgrade:

3521300RFT (TE Connectivity Passive Product) provides a 2W power rating upgrade with ±1% tolerance and AEC-Q200 automotive qualification. This part is suitable for applications requiring increased power dissipation capability. Inventory availability is substantial (112,560 pcs).

Parts to Avoid for New Designs:

ERJ-1TNF3000U (Panasonic Electronic Components) carries "Not For New Designs" product status despite adequate inventory. This designation indicates the manufacturer is discontinuing the product line. Use only for legacy system maintenance or repair applications.

Frequently Asked Questions (FAQ)

Q: Can RC2512JK-07300RL directly replace RC6432J301CS without circuit modification?

A: Yes. RC2512JK-07300RL is a direct equivalent with identical resistance (300 Ohms), tolerance (±5%), power rating (1W), and package format (2512). Both parts are thick film, moisture-resistant, and operate across -55°C to 155°C. No circuit redesign is required.

Q: What is the difference between ±5% and ±1% tolerance substitutes?

A: Tolerance defines the acceptable resistance variation from the nominal 300 Ohm value. ±5% tolerance allows variation between 285 and 315 Ohms, while ±1% tolerance restricts variation to 297 and 303 Ohms. Applications requiring tighter resistance control should use ±1% parts such as RC2512FK-07300RL or RMCF2512FT300R.

Q: Are all substitute parts compatible with the 2512 package footprint?

A: Yes. All listed substitute parts use the 2512 (6432 Metric) package format with identical termination count (2) and compatible physical dimensions. Dimensional variations (length 6.30-6.40mm, width 3.10-3.20mm, height 0.65-0.70mm) fall within standard PCB pad tolerances and do not affect placement or soldering.

Q: What does AEC-Q200 certification mean?

A: AEC-Q200 is an automotive electronics qualification standard. Parts carrying this certification have undergone stress testing and reliability validation for automotive applications. AEC-Q200 qualified substitutes (AC2512JK-07300RL, AC2512FK-07300RL, RMCF2512FT300R, CRCW2512300RFKEG, 3521300RFT) are suitable for automotive or mission-critical applications requiring enhanced reliability documentation.

Q: Can I use the 2W-rated 3521300RFT in place of the 1W RC6432J301CS?

A: Yes, from an electrical and thermal perspective. The 3521300RFT provides higher power dissipation capability (2W vs 1W) and improved tolerance (±1% vs ±5%). The 2512 package remains identical. However, verify that the circuit design does not depend on the specific 1W thermal characteristics of the original part. Higher power rating typically indicates lower thermal resistance, which may affect circuit behavior in thermally sensitive applications.

Q: Why is ERJ-1TNF3000U listed if it is "Not For New Designs"?

A: ERJ-1TNF3000U is included for reference and legacy system support only. The "Not For New Designs" status indicates Panasonic is discontinuing this product line. For new designs, select from Active-status alternatives such as RMCF2512FT300R, RC2512FK-07300RL, or CRCW2512300RFKEG, which offer equivalent or superior specifications with ongoing manufacturer support.

Q: What is MSL 1 (Unlimited) moisture sensitivity?

A: MSL (Moisture Sensitivity Level) 1 indicates the component has unlimited shelf life without special moisture-control storage requirements. All listed parts carry MSL 1 rating, meaning they do not require dry-pack storage or baking before soldering. Standard warehouse storage conditions are acceptable.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, confirming absence of restricted substances (lead, cadmium, hexavalent chromium, PBBs, PBDEs, and phthalates). This compliance is maintained across all manufacturers and product variants.