WHA1K0FE Equivalent & Substitute Parts

Part Overview

The WHA1K0FE is a 1 kOhms ±1% 0.5W through-hole resistor manufactured by Ohmite in axial wirewound composition. This component is classified as Active product status and is suitable for applications requiring precision resistance with stable temperature characteristics across industrial temperature ranges. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within the specified parameter tolerances.

Substiute Parts

WHA1K0FE

OhmiteIn Stock: 799WHA1K0FE Datasheet

Current PartRFQ

WHA1K0FET

OhmiteIn Stock: 4090WHA1K0FET Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WHA1K0FE is determined by strict equivalence across the following critical parameters:

• Resistance value: 1 kOhms
• Tolerance: ±1%
• Power rating: 0.5W (1/2W)
• Composition: Wirewound
• Temperature coefficient: ±20ppm/°C
• Operating temperature range: -55°C to 150°C
• Package configuration: Axial
• Physical dimensions: 0.100" Dia x 0.200" L (2.54mm x 5.08mm)
• Number of terminations: 2

The WHA1K0FET qualifies as a direct substitute based on complete alignment with all electrical specifications and mechanical dimensions. Packaging format differences (bulk versus tape & reel) do not affect functional compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both WHA1K0FE and WHA1K0FET are Active status components manufactured by Ohmite with full RoHS compliance. Selection between these parts is determined by procurement and assembly requirements rather than electrical performance:

• WHA1K0FE: Suitable for applications requiring bulk component packaging and manual assembly workflows.
• WHA1K0FET: Suitable for automated assembly processes utilizing tape & reel packaging formats.

Both parts satisfy identical electrical specifications and mechanical compatibility requirements for circuit integration.

Frequently Asked Questions (FAQ)

Q: Can WHA1K0FET replace WHA1K0FE in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent across all specified parameters including resistance, tolerance, power rating, temperature coefficient, and operating temperature range. The difference is packaging format only.

Q: What is the difference between WHA1K0FE and WHA1K0FET?

A: The primary difference is packaging. WHA1K0FE is supplied in bulk format, while WHA1K0FET is supplied in tape & reel format. Electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns with axial wirewound resistors in PCB assembly?

A: No compatibility concerns exist provided the PCB layout accommodates the specified physical dimensions of 0.100" diameter by 0.200" length. Both parts use identical axial lead configuration with 2 terminations.

Q: Do these parts meet RoHS requirements?

A: Yes. WHA1K0FE is ROHS3 Compliant and WHA1K0FET is RoHS Compliant. Both parts satisfy regulatory requirements for restricted substance compliance.

Q: What is the temperature stability of these resistors?

A: Both parts maintain a temperature coefficient of ±20ppm/°C across the operating range of -55°C to 150°C, providing stable resistance values under thermal variation.