LTO050FR2000FTE3 Equivalent & Substitute Parts

Part Overview

The LTO050FR2000FTE3 is a 200 mOhms ±1% 50W through-hole resistor manufactured by Vishay Sfernice in the LTO 50 series. This thick film, non-inductive resistor is housed in a TO-220-2 Full Pack configuration and is rated for operation across -55°C to 150°C. The part is currently obsolete, making identification of suitable substitutes necessary for ongoing design support and component procurement.

Substiute Parts

LTO050FR2000FTE3

Vishay SferniceIn Stock: 683LTO050FR2000FTE3 Datasheet

Current PartRFQ

LTO050FR2000JTE3

Vishay SferniceIn Stock: 886LTO050FR2000JTE3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LTO050FR2000FTE3 is determined by the following critical parameters:

• Resistance value: 200 mOhms (exact match required)
• Power rating: 50W (exact match required)
• Package type: TO-220-2 Full Pack (exact match required)
• Operating temperature range: -55°C to 150°C (exact match required)
• Composition: Thick film, non-inductive (exact match required)
• Temperature coefficient: ±250ppm/°C (exact match required)

The LTO050FR2000JTE3 qualifies as a substitute because it maintains identical electrical specifications, thermal characteristics, and mechanical packaging. The primary difference is tolerance specification (±5% versus ±1%) and product status (active versus obsolete).

Parameter Comparison

Engineering Selection Recommendations

The LTO050FR2000JTE3 is the direct substitute for the obsolete LTO050FR2000FTE3. Both parts maintain identical mechanical fit, thermal performance, and electrical characteristics across all critical parameters. The LTO050FR2000JTE3 is currently in active production status with confirmed inventory availability.

The tolerance difference (±5% versus ±1%) is the only specification variance. Applications requiring the tighter ±1% tolerance of the original part must evaluate whether the ±5% tolerance of the substitute is acceptable for the circuit design. Both parts carry ROHS3 compliance and are suitable for the same operating environment.

Frequently Asked Questions (FAQ)

Q: Can the LTO050FR2000JTE3 be used as a direct replacement for the LTO050FR2000FTE3?

A: Yes. The LTO050FR2000JTE3 is mechanically and electrically compatible. Both parts share identical resistance value, power rating, package configuration, and operating temperature range. The substitute is available in active production status.

Q: What is the difference between these two parts?

A: The primary differences are tolerance specification and product status. The LTO050FR2000FTE3 specifies ±1% tolerance and is obsolete. The LTO050FR2000JTE3 specifies ±5% tolerance and is in active production. All other electrical and mechanical parameters are identical.

Q: Does tolerance affect circuit performance?

A: Tolerance affects the initial resistance value accuracy. The ±1% tolerance of the original part provides tighter initial value control compared to the ±5% tolerance of the substitute. Circuit designs must be evaluated to determine if the wider tolerance is acceptable for the application.

Q: Are the packages identical?

A: Yes. Both parts use the TO-220-2 Full Pack configuration with identical dimensions: 0.409" L x 0.126" W (10.40mm x 3.20mm) and maximum seated height of 0.799" (20.30mm). PCB layout and thermal management considerations remain unchanged.

Q: Are both parts RoHS compliant?

A: Yes. Both the LTO050FR2000FTE3 and LTO050FR2000JTE3 are ROHS3 compliant.