RC6432J683CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432J683CS is a 68 kOhms ±5% 1W chip resistor manufactured by Samsung Electro-Mechanics in the 2512 (6432 Metric) package. This thick film, moisture-resistant component operates across -55°C to 155°C and maintains ROHS3 compliance with MSL 1 rating. The part is currently in active production status with 885 pieces available in inventory. Equivalent and substitute parts are identified based on matching electrical specifications (resistance value, power rating, tolerance, temperature coefficient) and mechanical compatibility (package dimensions, termination count, composition type).

Substiute Parts

RC6432J683CS

Samsung Electro-MechanicsIn Stock: 980RC6432J683CS Datasheet

Current PartRFQ

RC2512JK-0768KL

YAGEOIn Stock: 6104RC2512JK-0768KL Datasheet

DirectRFQ

RC2512FK-0768KL

YAGEOIn Stock: 15576RC2512FK-0768KL Datasheet

UpgradeRFQ

RHC2512FT68K0

Stackpole Electronics IncIn Stock: 22516RHC2512FT68K0 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RC6432J683CS are classified into two categories based on electrical and mechanical compatibility:

Direct Equivalent (Same Electrical Specifications): The RC2512JK-0768KL from YAGEO maintains identical electrical parameters: 68 kOhms resistance, ±5% tolerance, 1W power rating, ±100ppm/°C temperature coefficient, and -55°C to 155°C operating range. Package dimensions are mechanically compatible within standard PCB assembly tolerances. This part qualifies as a direct substitute for applications requiring no performance upgrade.

Upgrade Substitutes (Enhanced Specifications): Two parts offer improved electrical performance while maintaining mechanical compatibility:

1. RC2512FK-0768KL (YAGEO): Upgrades tolerance from ±5% to ±1% while maintaining 1W power rating, identical resistance value, and package compatibility.

2. RHC2512FT68K0 (Stackpole Electronics Inc): Upgrades both tolerance to ±1% and power rating to 2W, providing enhanced thermal headroom and precision, while maintaining package compatibility and identical resistance value.

All substitutes share the following critical parameters with the main part:

• Resistance: 68 kOhms
• Package: 2512 (6432 Metric)
• Composition: Thick Film
• Features: Moisture Resistant
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature: -55°C ~ 155°C
• Terminations: 2
• RoHS Status: ROHS3 Compliant
• MSL: 1 (Unlimited)

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (No Performance Change): The RC2512JK-0768KL from YAGEO serves as a direct equivalent when component substitution is required due to supply constraints or manufacturing discontinuation. This part maintains all electrical and mechanical specifications of the RC6432J683CS, including ±5% tolerance and 1W power rating. Both parts are ROHS3 compliant with MSL 1 rating, ensuring compatibility in moisture-sensitive applications. Higher inventory availability (6035 pieces) supports production continuity.

For Tolerance Upgrade (±5% to ±1%): The RC2512FK-0768KL from YAGEO upgrades tolerance specification to ±1% while preserving the 1W power rating and all other electrical parameters. This substitution is applicable in circuits requiring tighter resistance accuracy. The part maintains ROHS3 compliance and MSL 1 rating. Significantly higher inventory (15476 pieces) ensures supply reliability.

For Power Rating and Tolerance Upgrade (1W to 2W, ±5% to ±1%): The RHC2512FT68K0 from Stackpole Electronics Inc provides dual upgrades: increased power dissipation capacity (2W) and improved tolerance (±1%). This substitution is suitable for applications experiencing higher thermal stress or requiring enhanced precision. The part is ROHS3 compliant with MSL 1 rating. Maximum seated height increases from 0.66mm to 0.70mm; verify PCB clearance in space-constrained layouts. Highest inventory availability (22416 pieces) supports large-scale deployments.

All substitutes maintain active product status and full regulatory compliance (ROHS3, REACH Unaffected, EAR99 classification).

Frequently Asked Questions (FAQ)

Q: Can RC2512JK-0768KL replace RC6432J683CS in any application? A: Yes, RC2512JK-0768KL is a direct equivalent. Both parts share identical electrical specifications (68 kOhms, ±5%, 1W) and mechanical compatibility (2512 package, 2 terminations). Dimensional variations (length 0.250" vs 0.248", width 0.122" vs 0.126") fall within standard PCB assembly tolerances and do not affect functionality.

Q: What is the advantage of upgrading to RC2512FK-0768KL? A: RC2512FK-0768KL improves tolerance from ±5% to ±1%, providing tighter resistance accuracy. Power rating remains 1W. This upgrade is beneficial in precision analog circuits, measurement equipment, or applications where resistance drift affects performance. All other specifications remain identical to the main part.

Q: When should RHC2512FT68K0 be selected instead of the main part? A: RHC2512FT68K0 is selected when applications require both improved tolerance (±1%) and higher power dissipation (2W). This dual upgrade reduces thermal stress and improves measurement precision. Verify that the increased seated height (0.028" vs 0.026") does not conflict with PCB layout constraints or component clearances.

Q: Are all substitute parts ROHS3 compliant? A: Yes. RC2512JK-0768KL, RC2512FK-0768KL, and RHC2512FT68K0 are all ROHS3 compliant with MSL 1 (Unlimited) rating, matching the compliance profile of RC6432J683CS. All parts are REACH Unaffected and classified as EAR99.

Q: Do dimensional differences between substitutes affect PCB assembly? A: Dimensional variations are minimal and within standard PCB assembly tolerances. RC2512JK-0768KL and RC2512FK-0768KL (both YAGEO) have slightly different length and width (0.250" x 0.122" vs 0.248" x 0.126") but identical height (0.026"). RHC2512FT68K0 matches the main part's length and width but has increased height (0.028" vs 0.026"). Verify clearance in space-constrained designs, particularly for RHC2512FT68K0.

Q: What is the temperature coefficient significance? A: All parts, including substitutes, maintain ±100ppm/°C temperature coefficient across the -55°C to 155°C operating range. This specification ensures consistent resistance stability across temperature variations and is identical across all options.

Q: Which substitute offers the best supply availability? A: RHC2512FT68K0 from Stackpole Electronics Inc has the highest inventory (22416 pieces), followed by RC2512FK-0768KL (15476 pieces) and RC2512JK-0768KL (6035 pieces). Supply availability should be evaluated against specific performance requirements for each application.