45FR13 Equivalent & Substitute Parts

Part Overview

The Ohmite 45FR13 is a 130 mOhms ±1% 5W axial wirewound through-hole resistor from the Ohmicone® 40 series. This component is designed for applications requiring low-resistance, high-power dissipation in a compact axial package. The part maintains active product status with 1027 units in current inventory. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and application-specific requirements where alternative manufacturers' components meet the same electrical and mechanical specifications.

Substiute Parts

45FR13

OhmiteIn Stock: 108545FR13 Datasheet

Current PartRFQ

ALSR05R1300FE12

Vishay DaleIn Stock: 10193ALSR05R1300FE12 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 45FR13 are qualified based on the following critical parameters:

• Resistance Value: 130 mOhms (exact match required)
• Tolerance: ±1% (ensures equivalent precision)
• Power Rating: 5W (maintains thermal performance capability)
• Composition: Wirewound (preserves electrical characteristics)
• Package Type: Axial (ensures mechanical and board-level compatibility)
• Termination Count: 2 (maintains circuit interface compatibility)

The Vishay Dale ALSR05R1300FE12 meets all these core parameters and qualifies as a direct substitute. Both components are active products with established supply availability.

Parameter Comparison

Engineering Selection Recommendations

Both the 45FR13 and ALSR05R1300FE12 are active products suitable for 130 mOhms ±1% 5W axial wirewound applications. Selection between these components should be based on the following criteria:

45FR13 (Ohmite): Select when the original design specification or existing inventory management requires the Ohmicone® 40 series component. This part is currently in stock with 1027 units available.

ALSR05R1300FE12 (Vishay Dale): Select when ROHS3 compliance is required for the end application or when the moisture-resistant feature of the ALSR series provides additional environmental protection. This part offers a defined operating temperature range of -65°C to 250°C and is available in higher inventory (10093 units).

Both components are classified under ECCN EAR99 and HTSUS 8533.21.0080, with identical electrical specifications. Physical dimensions differ slightly; verify PCB layout clearances if space constraints exist.

Frequently Asked Questions (FAQ)

Q: Can the ALSR05R1300FE12 be used as a direct replacement for the 45FR13 in existing designs?

A: Yes. Both components share identical electrical specifications (130 mOhms ±1%, 5W, ±1% tolerance, wirewound composition, axial package, 2 terminations). Minor physical dimension differences (0.312" vs 0.343" diameter; 0.875" vs 0.937" length) require verification of PCB layout and mechanical clearances.

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

A: The 45FR13 is RoHS non-compliant, while the ALSR05R1300FE12 is ROHS3 compliant. Selection depends on end-product regulatory requirements.

Q: Are there operating temperature differences between these substitutes?

A: The ALSR05R1300FE12 specifies an operating range of -65°C to 250°C. The 45FR13 does not provide an operating temperature specification in available documentation. Verify application temperature requirements before selection.

Q: What does the moisture-resistant feature of the ALSR series provide?

A: The ALSR05R1300FE12 includes moisture-resistant construction with MSL rating of 1 (Unlimited), indicating enhanced environmental protection. The 45FR13 lists MSL as Not Applicable. Select the ALSR variant for applications with elevated humidity or moisture exposure requirements.

Q: Are inventory levels a consideration for part selection?

A: The ALSR05R1300FE12 has significantly higher inventory availability (10093 units) compared to the 45FR13 (1027 units). For high-volume production or long-term supply assurance, the Vishay Dale component may offer procurement advantages.