Ohmite 45F470 Equivalent & Substitute Parts

Part Overview

The Ohmite 45F470 is a 470 Ohm ±1% 5W through-hole resistor with axial wirewound construction from the Ohmicone® 40 series. This component is currently active in production and widely used in applications requiring precision power resistors with tight tolerance specifications. Substitute parts are identified when original stock is unavailable, when alternative compliance certifications are required, or when design flexibility permits equivalent electrical and mechanical performance.

Substiute Parts

45F470

OhmiteIn Stock: 83345F470 Datasheet

Current PartRFQ

ALSR05470R0FE12

Vishay DaleIn Stock: 1055ALSR05470R0FE12 Datasheet

DirectRFQ

RS005470R0FS73

Vishay DaleIn Stock: 1135RS005470R0FS73 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Ohmite 45F470 is determined by the following core parameters:

• Resistance Value: Must be 470 Ohms
• Tolerance: Must be ±1%
• Power Rating: Must be 5W
• Composition: Must be Wirewound
• Package: Must be Axial
• Termination Count: Must be 2

The identified substitute parts (ALSR05470R0FE12 and RS005470R0FS73) meet all mandatory electrical and mechanical parameters. Both are manufactured by Vishay Dale and maintain identical resistance, tolerance, power rating, composition, and package specifications. Dimensional compatibility is confirmed with both substitutes measuring 0.312" Dia x 0.875" L (7.92mm x 22.23mm), compared to the main part's 0.343" Dia x 0.937" L (8.70mm x 23.80mm).

Parameter Comparison

Engineering Selection Recommendations

Primary Selection - Ohmite 45F470: Select when original part specification is required and stock availability permits. This part maintains the original design intent and is the reference component for this application.

First Substitute - Vishay Dale ALSR05470R0FE12: Select when ROHS3 compliance is required. This part offers improved environmental protection through moisture-resistant construction and meets current RoHS3 standards. The temperature coefficient of ±30ppm/°C is within acceptable variance for most applications requiring ±1% tolerance resistors. Higher inventory availability (1003 Pcs) supports supply chain continuity.

Second Substitute - Vishay Dale RS005470R0FS73: Select when temperature coefficient matching the original specification (±20ppm/°C) is critical and moisture-resistant construction is beneficial. This part is supplied in Cut Tape format, suitable for automated assembly processes. Highest inventory availability (1090 Pcs) ensures supply security. Note that RoHS compliance status differs from the primary part.

All three parts share identical electrical performance in resistance, tolerance, and power rating. Selection between substitutes depends on compliance requirements, packaging format needs, and temperature coefficient precision requirements for the specific application.

Frequently Asked Questions (FAQ)

Q: Can ALSR05470R0FE12 be used as a direct replacement for 45F470?

A: Yes. Both parts meet the core electrical specifications: 470 Ohms ±1% at 5W with wirewound axial construction. The ALSR05470R0FE12 offers additional moisture resistance and ROHS3 compliance. The temperature coefficient differs by 10ppm/°C (±30ppm/°C vs ±20ppm/°C), which remains within acceptable tolerance for ±1% resistor applications.

Q: What is the difference between ALSR05470R0FE12 and RS005470R0FS73?

A: Both are Vishay Dale 470 Ohm 5W axial wirewound resistors with identical electrical specifications. Key differences are: ALSR05470R0FE12 has ±30ppm/°C temperature coefficient and ROHS3 compliance; RS005470R0FS73 has ±20ppm/°C temperature coefficient matching the original part and is supplied in Cut Tape format. Both include moisture-resistant construction.

Q: Are the physical dimensions compatible?

A: The substitute parts (0.312" Dia x 0.875" L) are slightly smaller than the original 45F470 (0.343" Dia x 0.937" L). Both fit standard axial component footprints and PCB layouts designed for 5W wirewound resistors. Verify mechanical clearance in space-constrained applications.

Q: Which substitute should I select for new designs?

A: Selection depends on compliance and performance requirements. For ROHS3-compliant designs, use ALSR05470R0FE12. For applications requiring exact temperature coefficient matching, use RS005470R0FS73. Both are active production parts with strong inventory availability.

Q: What is the packaging difference between the substitutes?

A: ALSR05470R0FE12 is supplied in Bulk packaging. RS005470R0FS73 is supplied in Cut Tape (CT) format, optimized for automated pick-and-place assembly. Select based on your manufacturing process requirements.