RER75F7R50PC02 Equivalent & Substitute Parts

Part Overview

The RER75F7R50PC02 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 and environmental protection. The part is currently active in production with 1155 units in stock. Substitute parts are identified when inventory constraints, lead time requirements, or specific failure rate specifications necessitate alternative sourcing while maintaining full electrical and mechanical compatibility.

Substiute Parts

RER75F7R50PC02

Vishay DaleIn Stock: 1180RER75F7R50PC02 Datasheet

Current PartRFQ

RER75F7R50RC02

Vishay DaleIn Stock: 1109RER75F7R50RC02 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RER75F7R50PC02 is determined by strict equivalence across the following parameters:

• Resistance value: 7.5 Ohms
• Tolerance: ±1%
• Power rating: 30W
• Composition: Wirewound
• Temperature coefficient: ±50ppm/°C
• Operating temperature range: -55°C to 250°C
• Housing material: Aluminum
• Mounting configuration: Flanges with solder lugs
• Package classification: Axial, Box
• Military qualification: MIL-PRF-39009 series

The RER75F7R50RC02 meets all substitution criteria as a parametric equivalent within the RER75 military resistor series. Both parts share identical electrical specifications, physical dimensions, and environmental ratings. The primary distinction lies in the failure rate classification, which does not affect functional interchangeability in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the RER75F7R50PC02 and RER75F7R50RC02 are active production components qualified to MIL-PRF-39009 military standards. Selection between these parts should be based on:

• Inventory availability and lead time requirements
• Failure rate specifications for the application (P-grade at 0.1% versus R-grade at 0.01%)
• Supply chain continuity and procurement strategy

Both parts carry identical RoHS non-compliance status and EAR99 export classification. Moisture sensitivity level 1 indicates unlimited shelf life under standard storage conditions for both variants. The RER75F7R50RC02 offers a lower failure rate specification, which may be advantageous for high-reliability applications, while the RER75F7R50PC02 provides equivalent electrical performance with standard military-grade reliability.

Frequently Asked Questions (FAQ)

Q: Can RER75F7R50RC02 be used as a direct replacement for RER75F7R50PC02?

A: Yes. Both parts are parametric equivalents with identical electrical specifications (7.5 Ohms ±1%, 30W), mechanical dimensions, and environmental ratings. The difference in failure rate classification does not affect functional interchangeability.

Q: What is the significance of the failure rate difference between P and R grades?

A: Failure rate P (0.1%) and R (0.01%) represent different reliability classifications within MIL-PRF-39009. The R-grade component has a lower predicted failure rate. Selection depends on application reliability requirements.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both components have 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). They use identical flanged mounting with solder lugs and fit the same circuit board layouts.

Q: Do both parts meet the same environmental specifications?

A: Yes. Both operate across -55°C to 250°C with ±50ppm/°C temperature coefficient, identical aluminum housing construction, and moisture sensitivity level 1 (unlimited shelf life).

Q: What is the packaging format for these resistors?

A: Both parts are supplied in Axial, Box package configuration with solder lug terminations for chassis mount applications.