25JR75 Equivalent & Substitute Parts

Part Overview

The Ohmite 25JR75 is a 750 mOhms ±5% 5W through-hole axial wirewound resistor with flame retardant coating and safety features. This component is classified as Active product status and is currently in stock with 1104 units available. Equivalent and substitute parts are identified to provide procurement flexibility, support supply chain continuity, and accommodate specific packaging or compliance requirements.

Substiute Parts

25JR75

OhmiteIn Stock: 118725JR75 Datasheet

Current PartRFQ

25JR75E

OhmiteIn Stock: 99725JR75E Datasheet

DirectRFQ

ALSR05R7500JE12

Vishay DaleIn Stock: 729ALSR05R7500JE12 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 25JR75 are qualified based on the following critical parameters:

• Resistance value: 750 mOhms
• Tolerance: ±5%
• Power rating: 5W
• Composition: Wirewound
• Package configuration: Axial
• Number of terminations: 2

Substitutes are grouped into two categories: direct equivalents from the same manufacturer (Ohmite) and cross-manufacturer alternatives (Vishay Dale). All qualified substitutes maintain identical electrical specifications and compatible physical dimensions for direct board-level replacement.

Parameter Comparison

Engineering Selection Recommendations

25JR75E (Ohmite): Direct equivalent from the original manufacturer with identical electrical and physical specifications. This part achieves ROHS3 compliance, addressing regulatory requirements where the primary 25JR75 does not. Packaging is available in Bulk format. Inventory availability is 948 units.

ALSR05R7500JE12 (Vishay Dale): Cross-manufacturer substitute meeting all core electrical specifications. This part is manufacturer-recommended and provides ROHS3 compliance. Physical dimensions differ slightly (0.312" Dia x 0.875" L versus 0.276" Dia x 1.016" L), requiring board layout verification for space-constrained applications. Temperature coefficient specification (±90ppm/°C) and extended operating temperature range (-65°C ~ 250°C) are provided. Inventory availability is 638 units.

Frequently Asked Questions (FAQ)

Q: Can the 25JR75E be used as a direct replacement for the 25JR75?

A: Yes. The 25JR75E maintains identical resistance (750 mOhms), tolerance (±5%), power rating (5W), composition (wirewound), package type (axial), and physical dimensions. The primary difference is RoHS compliance status (ROHS3 Compliant versus non-compliant).

Q: What are the physical dimension differences between the Ohmite and Vishay Dale parts?

A: The 25JR75 and 25JR75E measure 0.276" Dia x 1.016" L (7.00mm x 25.80mm). The ALSR05R7500JE12 measures 0.312" Dia x 0.875" L (7.92mm x 22.23mm). The Vishay Dale part is slightly larger in diameter and shorter in length. Board layout verification is required for applications with space constraints.

Q: Are all substitute parts wirewound composition?

A: Yes. All three parts—25JR75, 25JR75E, and ALSR05R7500JE12—are wirewound resistors with axial package configuration.

Q: What is the difference in RoHS compliance between these parts?

A: The 25JR75 is RoHS non-compliant. Both the 25JR75E and ALSR05R7500JE12 are ROHS3 compliant, meeting current regulatory requirements for restricted substances.

Q: Can the ALSR05R7500JE12 be used in space-constrained PCB layouts?

A: The ALSR05R7500JE12 has different physical dimensions than the Ohmite parts. Board layout verification is necessary to confirm fit within available space before substitution.