FPA2K 50R K Equivalent & Substitute Parts

Part Overview

The FPA2K 50R K is a thick film power resistor manufactured by Ohmite, rated for 2000W at 50 Ohms with ±10% tolerance. This chassis mount resistor is designed for high-power applications requiring thermal dissipation through flanged mounting. The part is Active status and RoHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility exist but power ratings differ, allowing selection based on application thermal requirements.

Substiute Parts

FPA2K 50R K

OhmiteIn Stock: 1088FPA2K 50R K Datasheet

Current PartRFQ

TAP600K50RE

OhmiteIn Stock: 1417TAP600K50RE Datasheet

Parametric EquivalentRFQ

TAP800K50RE

OhmiteIn Stock: 1196TAP800K50RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FPA2K 50R K are identified based on the following criteria:

Matching Parameters (Required for Substitution):

• Resistance value: 50 Ohms
• Tolerance: ±10%
• Composition: Thick Film
• Temperature Coefficient: ±150ppm/°C
• Operating Temperature Range: -55°C ~ 150°C
• Mounting Feature: Flanges with M5 Threaded Lead
• Physical Dimensions: 2.559" L x 2.362" W x 1.280" H
• Compliance: RoHS3 Compliant, REACH Unaffected

Variable Parameter (Substitution Basis):

• Power Rating: Differs between main part and substitutes

The TAP600K50RE and TAP800K50RE are classified as parametric equivalents because they maintain identical electrical and mechanical specifications while offering reduced power ratings of 600W and 800W respectively. These parts are suitable for applications where the full 2000W capacity is not required.

Parameter Comparison

Engineering Selection Recommendations

Selection between the FPA2K 50R K and its substitute parts is determined by application power dissipation requirements:

FPA2K 50R K (2000W): Select this part for applications requiring the maximum power dissipation capacity. All three parts share identical electrical characteristics, mechanical mounting interfaces, and compliance certifications.

TAP800K50RE (800W): Select this part for applications with moderate power dissipation requirements. This part maintains full electrical and mechanical compatibility with identical dimensions, lead configuration, and operating temperature range.

TAP600K50RE (600W): Select this part for applications with lower power dissipation requirements. This part maintains full electrical and mechanical compatibility with identical dimensions, lead configuration, and operating temperature range.

All three parts are Active status products manufactured by Ohmite, RoHS3 compliant, and REACH unaffected. Mechanical interchangeability is confirmed through identical flange mounting, M5 threaded lead style, and physical dimensions.

Frequently Asked Questions (FAQ)

Q: Can TAP800K50RE or TAP600K50RE be used as direct replacements for FPA2K 50R K?

A: These parts are mechanically and electrically interchangeable in terms of resistance value, tolerance, temperature coefficient, operating temperature range, and physical dimensions. Selection depends on whether the application power dissipation requirement is 800W, 600W, or requires the full 2000W capacity.

Q: Are the mounting interfaces identical between all three parts?

A: Yes. All three parts feature flanged chassis mount design with M5 threaded leads and identical physical dimensions of 2.559" L x 2.362" W x 1.280" H (65.00mm x 60.00mm x 32.50mm).

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. FPA2K 50R K, TAP800K50RE, and TAP600K50RE are all RoHS3 compliant and REACH unaffected.

Q: What is the primary difference between these parts?

A: The primary difference is power rating. FPA2K 50R K is rated for 2000W, TAP800K50RE for 800W, and TAP600K50RE for 600W. All other electrical and mechanical specifications are identical.

Q: Are there any coating or housing differences?

A: FPA2K 50R K does not specify a coating type. TAP800K50RE and TAP600K50RE are both epoxy coated. This does not affect electrical interchangeability.

Q: What temperature range do these resistors operate within?

A: All three parts operate within -55°C to 150°C with a temperature coefficient of ±150ppm/°C.