RCP2512B50R0JS3 Equivalent & Substitute Parts

Part Overview

The RCP2512B50R0JS3 is a 50 Ohm ±5% 4.6W chip resistor in 2512 (6432 Metric) package manufactured by Vishay Dale. This thick film, moisture-resistant component operates across -65°C to 155°C and is currently in active production status. Finding equivalent or substitute parts may be necessary due to inventory availability, compliance requirements, or design optimization needs.

Substiute Parts

RCP2512B50R0JS3

Vishay DaleIn Stock: 1158RCP2512B50R0JS3 Datasheet

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RCP2512W50R0GEB

Vishay DaleIn Stock: 1860RCP2512W50R0GEB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RCP2512B50R0JS3 is determined by strict equivalence in the following critical parameters:

• Resistance value: 50 Ohms (exact match required)
• Power rating: 4.6W (exact match required)
• Package / Case: 2512 (6432 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±150ppm/°C (exact match required)
• Operating Temperature Range: -65°C ~ 155°C (exact match required)
• Moisture Resistance: Required feature (exact match required)

Tolerance may vary within acceptable design margins. RoHS compliance status and inventory availability are secondary considerations that do not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The RCP2512W50R0GEB serves as a direct electrical and mechanical substitute for the RCP2512B50R0JS3. Both components share identical resistance, power rating, package dimensions, thermal characteristics, and moisture resistance properties.

The primary distinction is tolerance specification: RCP2512W50R0GEB provides ±2% tolerance compared to the ±5% tolerance of the main part. This represents improved precision and is compatible with applications requiring tighter resistance tolerances.

RCP2512W50R0GEB additionally carries ROHS3 compliance certification, whereas RCP2512B50R0JS3 is RoHS non-compliant. Selection between these parts should be based on regulatory requirements and design specifications applicable to the end application.

Frequently Asked Questions (FAQ)

Q: Can RCP2512W50R0GEB replace RCP2512B50R0JS3 in existing designs?

A: Yes. Both components are electrically and mechanically equivalent. They share identical resistance value, power rating, package dimensions, operating temperature range, and thermal characteristics. PCB layout and footprint compatibility are assured.

Q: What is the difference in tolerance between these parts?

A: RCP2512B50R0JS3 has ±5% tolerance, while RCP2512W50R0GEB has ±2% tolerance. The substitute part offers tighter resistance accuracy. Both tolerances are within the same resistance value band and are interchangeable unless design specifications mandate the tighter tolerance of the substitute.

Q: Are there package or footprint differences?

A: No. Both parts use the 2512 (6432 Metric) package with identical dimensions: 0.250" L x 0.124" W (6.35mm x 3.15mm) and maximum seated height of 0.025" (0.64mm). Footprints are identical.

Q: What is the significance of RoHS compliance difference?

A: RCP2512W50R0GEB is ROHS3 compliant while RCP2512B50R0JS3 is RoHS non-compliant. RoHS compliance is a regulatory requirement in certain markets and applications. Selection depends on end-use regulatory requirements and customer specifications.

Q: Are the thermal and moisture characteristics identical?

A: Yes. Both parts have identical temperature coefficient (±150ppm/°C), operating temperature range (-65°C ~ 155°C), moisture resistance features, and Moisture Sensitivity Level 1 (Unlimited). Thermal and environmental performance are equivalent.