RER75F7R50PCSL Equivalent & Substitute Parts

Part Overview

The RER75F7R50PCSL is a 7.5 Ohms ±1% 30W wirewound chassis mount resistor manufactured by Vishay Dale, qualified to military standard MIL-PRF-39009. This component is designed for high-power applications requiring precision resistance with military-grade reliability. The part is currently active in production with 928 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product series, enabling procurement flexibility while preserving circuit performance and compliance requirements.

Substiute Parts

RER75F7R50PCSL

Vishay DaleIn Stock: 982RER75F7R50PCSL Datasheet

Current PartRFQ

RER75F7R50RC02

Vishay DaleIn Stock: 1109RER75F7R50RC02 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RER75F7R50PCSL is determined by strict equivalence across the following critical parameters:

• Resistance value: 7.5 Ohms
• Tolerance: ±1%
• Power rating: 30W
• Composition: Wirewound
• Temperature coefficient: ±50ppm/°C
• Operating temperature range: -55°C ~ 250°C
• Housing type: Aluminum
• Mounting feature: Flanges
• Lead style: Solder Lugs
• Package type: Axial, Box
• Military qualification: MIL-PRF-39009 series

The RER75F7R50RC02 meets all substitution criteria as a parametric equivalent within the RER75 military series. Both parts maintain identical electrical specifications and mechanical form factors, differing only in failure rate classification and packaging designation codes.

Parameter Comparison

Engineering Selection Recommendations

Both the RER75F7R50PCSL and RER75F7R50RC02 are active production components within the Vishay Dale military RER75 series, qualified to MIL-PRF-39009. Selection between these parts is based on failure rate requirements and inventory availability. The RER75F7R50PCSL carries a failure rate of P (0.1%), while the RER75F7R50RC02 provides an improved failure rate of R (0.01%). Both parts maintain identical electrical performance, mechanical dimensions, and environmental operating specifications. Neither part is RoHS compliant, and both carry unlimited moisture sensitivity classification. Component selection should align with system reliability requirements and procurement lead times.

Frequently Asked Questions (FAQ)

Q: Can RER75F7R50RC02 be used as a direct replacement for RER75F7R50PCSL?

A: Yes. Both parts are parametric equivalents with identical resistance, tolerance, power rating, temperature coefficient, operating temperature range, housing type, mounting features, and lead style. The parts differ only in failure rate classification and packaging designation.

Q: What is the difference between failure rate P (0.1%) and R (0.01%)?

A: Failure rate classification indicates the expected percentage of component failures per 1000 hours of operation under specified conditions. R (0.01%) represents a lower failure rate than P (0.1%), indicating improved reliability performance.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts share identical dimensions of 1.968" L x 1.140" W (49.99mm x 28.96mm) with a maximum seated height of 0.625" (15.87mm).

Q: Do both parts meet the same military qualification standard?

A: Yes. Both RER75F7R50PCSL and RER75F7R50RC02 are qualified to MIL-PRF-39009 and belong to the RER75 military series.

Q: What is the moisture sensitivity level for these components?

A: Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Are these parts RoHS compliant?

A: No. Both the RER75F7R50PCSL and RER75F7R50RC02 are RoHS non-compliant components.