RC6432F18R2CS Equivalent & Substitute Parts Reference

Part Overview

The RC6432F18R2CS is an 18.2 Ohms ±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 667 pieces available in new original inventory. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and compliance certifications align with the original component, enabling direct replacement in applications where the main part becomes unavailable or when design requirements necessitate alternative sourcing.

Substiute Parts

RC6432F18R2CS

Samsung Electro-MechanicsIn Stock: 708RC6432F18R2CS Datasheet

Current PartRFQ

CRCW251218R2FKEG

Vishay DaleIn Stock: 6105CRCW251218R2FKEG Datasheet

SimilarRFQ

CRCW251218R2FKEGHP

Vishay DaleIn Stock: 2706CRCW251218R2FKEGHP Datasheet

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ERJ-1TNF18R2U

Panasonic Electronic ComponentsIn Stock: 2597ERJ-1TNF18R2U Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RC6432F18R2CS is determined by strict alignment of the following parameters:

Primary Substitution Criteria:

• Resistance value: 18.2 Ohms
• Tolerance: ±1%
• Package / Case: 2512 (6432 Metric)
• Composition: Thick Film
• Temperature Coefficient: ±100ppm/°C
• Operating Temperature Range: -55°C to 155°C
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Secondary Consideration:

• Power Rating: 1W (minimum requirement for direct substitution)

Parts meeting all primary criteria with equal or greater power rating are classified as equivalent substitutes. The CRCW251218R2FKEG and ERJ-1TNF18R2U meet all primary criteria at the 1W power level. The CRCW251218R2FKEGHP exceeds the power rating at 1.5W while maintaining all other specifications, making it suitable for applications requiring enhanced pulse withstanding capability.

Parameter Comparison

Engineering Selection Recommendations

CRCW251218R2FKEG (Vishay Dale): This substitute maintains active product status and provides AEC-Q200 automotive qualification. All electrical and mechanical parameters align with the RC6432F18R2CS. The 1W power rating matches the original specification. This part is suitable for direct replacement in applications requiring equivalent performance characteristics.

CRCW251218R2FKEGHP (Vishay Dale): This variant offers enhanced capability through increased power rating (1.5W) and pulse withstanding features while maintaining all other electrical and mechanical specifications. The AEC-Q200 rating and active product status support continued use. Selection of this part is appropriate when applications require additional thermal margin or pulse handling capability beyond the original 1W specification.

ERJ-1TNF18R2U (Panasonic Electronic Components): This part meets all electrical and mechanical substitution criteria with AEC-Q200 qualification. However, the product status is designated as "Not For New Designs," indicating this part is in mature or declining production phase. Use of this substitute is limited to legacy system support or maintenance applications where existing inventory exists.

Frequently Asked Questions (FAQ)

Q: Can CRCW251218R2FKEG be used as a direct replacement for RC6432F18R2CS?

A: Yes. Both parts share identical resistance (18.2 Ohms), tolerance (±1%), power rating (1W), package (2512), temperature coefficient (±100ppm/°C), operating temperature range (-55°C to 155°C), and compliance certifications (ROHS3, MSL 1). The parts are mechanically and electrically interchangeable.

Q: What is the difference between CRCW251218R2FKEG and CRCW251218R2FKEGHP?

A: The primary difference is power rating. CRCW251218R2FKEG is rated at 1W, matching the original RC6432F18R2CS specification. CRCW251218R2FKEGHP is rated at 1.5W and includes pulse withstanding capability. All other parameters remain identical. Selection depends on whether the application requires the enhanced power handling of the -HP variant.

Q: Why is ERJ-1TNF18R2U marked "Not For New Designs"?

A: This designation indicates the part is in mature production phase and may have limited availability or planned discontinuation. While the part meets all technical substitution criteria, it is recommended for legacy system maintenance only. For new designs, CRCW251218R2FKEG or CRCW251218R2FKEGHP are preferred due to active product status.

Q: Are there dimensional differences between these substitute parts?

A: Minor dimensional variations exist within tolerance. RC6432F18R2CS specifies 0.248" L x 0.126" W (6.30mm x 3.20mm) with 0.026" max height. CRCW251218R2FKEG and CRCW251218R2FKEGHP specify 0.248" L x 0.124" W (6.30mm x 3.15mm) with 0.028" max height. ERJ-1TNF18R2U specifies 0.252" L x 0.126" W (6.40mm x 3.20mm) with 0.028" max height. These variations remain within standard PCB layout tolerances for 2512 package footprints.

Q: Do all substitute parts carry the same compliance certifications?

A: All substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original part. CRCW251218R2FKEG, CRCW251218R2FKEGHP, and ERJ-1TNF18R2U all carry AEC-Q200 automotive qualification, which the original RC6432F18R2CS does not specify. This additional qualification does not prevent substitution and may provide additional assurance for automotive applications.