Ohmite 43F6K0 Equivalent & Substitute Parts

Part Overview

The Ohmite 43F6K0 is a 6 kOhms ±1% 3W axial wirewound through-hole resistor from the Ohmicone® 40 series. This component is designed for applications requiring precision resistance with moderate power dissipation in a compact axial package. The part maintains Active product status with 744 units currently in stock. Substitute parts are identified when the primary part becomes unavailable or when design requirements necessitate alternative sourcing options that maintain equivalent electrical and mechanical specifications.

Substiute Parts

43F6K0

OhmiteIn Stock: 82443F6K0 Datasheet

Current PartRFQ

ALSR036K000FE12

Vishay DaleIn Stock: 1145ALSR036K000FE12 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Ohmite 43F6K0 are qualified based on the following critical parameters that determine functional equivalence:

• Resistance value: 6 kOhms (exact match required)
• Tolerance: ±1% (precision class equivalence)
• Power rating: 3W (thermal capability match)
• Composition: Wirewound (construction type match)
• Package: Axial (form factor and termination compatibility)
• Number of terminations: 2 (circuit interface compatibility)

The Vishay Dale ALSR036K000FE12 meets all these core substitution criteria, providing electrical and mechanical compatibility for direct replacement applications.

Parameter Comparison

Engineering Selection Recommendations

Both the Ohmite 43F6K0 and Vishay Dale ALSR036K000FE12 are Active products suitable for direct substitution based on electrical equivalence. The Vishay Dale ALSR036K000FE12 offers ROHS3 compliance, whereas the Ohmite 43F6K0 is RoHS non-compliant. Selection between these parts should be based on regulatory requirements and compliance mandates applicable to the end application. The Vishay Dale part features a smaller physical footprint (0.180" Dia x 0.500" L versus 0.220" Dia x 0.594" L), which may provide advantages in space-constrained designs. The temperature coefficient difference (±30ppm/°C versus ±20ppm/°C) and specified operating temperature range (-65°C ~ 250°C for Vishay Dale) should be evaluated against application thermal requirements.

Frequently Asked Questions (FAQ)

Q: Can the Vishay Dale ALSR036K000FE12 be used as a direct replacement for the Ohmite 43F6K0?

A: Yes. Both parts share identical resistance (6 kOhms), tolerance (±1%), power rating (3W), composition (wirewound), and axial package configuration with two terminations. These parameters establish functional equivalence for circuit-level substitution.

Q: What are the physical dimension differences between these parts?

A: The Ohmite 43F6K0 measures 0.220" Dia x 0.594" L (5.60mm x 15.10mm), while the Vishay Dale ALSR036K000FE12 measures 0.180" Dia x 0.500" L (4.57mm x 12.70mm). The Vishay Dale part is smaller in both diameter and length. PCB layout and mechanical clearance must be verified before substitution in space-constrained applications.

Q: How do the temperature coefficients compare?

A: The Ohmite 43F6K0 has a temperature coefficient of ±20ppm/°C, while the Vishay Dale ALSR036K000FE12 has ±30ppm/°C. For applications requiring tighter temperature stability, the Ohmite part offers superior performance. The Vishay Dale part specifies an operating temperature range of -65°C ~ 250°C.

Q: What is the compliance difference between these parts?

A: The Ohmite 43F6K0 is RoHS non-compliant, while the Vishay Dale ALSR036K000FE12 is ROHS3 compliant. Applications subject to RoHS regulations must use the Vishay Dale part.

Q: Are both parts currently available?

A: Yes. The Ohmite 43F6K0 has 744 units in stock, and the Vishay Dale ALSR036K000FE12 has 1040 units in stock as new original inventory.