FT-63ETH203 Equivalent & Substitute Parts

Part Overview

The FT-63ETH203 is a 20 kOhm, 0.5W through-hole trimmer potentiometer manufactured by Nidec Components Corporation. This cermet-based component features side adjustment with PC pin termination and is designed for applications requiring precision variable resistance in compact form factors. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when electrical specifications, mechanical mounting characteristics, and regulatory compliance align with the original component requirements.

Substiute Parts

FT-63ETH203

Nidec Components CorporationIn Stock: 941FT-63ETH203 Datasheet

Current PartRFQ

72XR20KLF

TT Electronics / BI TechnologiesIn Stock: 390072XR20KLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the FT-63ETH203 is determined by strict alignment of the following electrical and mechanical parameters:

• Resistance value: 20 kOhms (exact match required)
• Power rating: 0.5W / 1/2W (exact match required)
• Tolerance: ±10% (exact match required)
• Temperature coefficient: ±100ppm/°C (exact match required)
• Number of turns: 1 (exact match required)
• Adjustment type: Side Adjustment (exact match required)
• Resistive material: Cermet (exact match required)
• Mounting type: Through Hole (exact match required)
• Termination style: PC Pins (exact match required)
• Regulatory compliance: ROHS3 Compliant (minimum requirement)

The 72XR20KLF from TT Electronics / BI Technologies meets all electrical specifications and regulatory requirements. Physical dimensions differ (square 0.375" x 0.375" versus rectangular 0.323" x 0.276"), which may affect PCB layout compatibility depending on available board space.

Parameter Comparison

Engineering Selection Recommendations

Both the FT-63ETH203 and 72XR20KLF are active production components with ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

• PCB layout constraints: The FT-63ETH203 occupies a smaller rectangular footprint (8.20mm x 7.00mm), while the 72XR20KLF requires a larger square footprint (9.53mm x 9.53mm). Verify available board space before substitution.
• Supply chain availability: The 72XR20KLF currently has higher inventory (3852 pcs) compared to the FT-63ETH203 (841 pcs).
• Packaging format: The FT-63ETH203 is supplied in Tape & Box format, while the 72XR20KLF is supplied in Bulk format. Confirm packaging compatibility with assembly processes.

All electrical and regulatory parameters are equivalent between the two parts.

Frequently Asked Questions (FAQ)

Q: Can the 72XR20KLF directly replace the FT-63ETH203 in my circuit?

A: Yes, from an electrical standpoint. Both components have identical resistance (20 kOhms), power rating (0.5W), tolerance (±10%), temperature coefficient (±100ppm/°C), and adjustment characteristics. However, verify that the larger physical dimensions of the 72XR20KLF (0.375" x 0.375" square versus 0.323" x 0.276" rectangular) fit within your PCB layout.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry the same ECCN (EAR99) and HTSUS (8533.40.8050) classifications.

Q: What is the significance of the different packaging formats?

A: The FT-63ETH203 is supplied in Tape & Box format, suitable for automated pick-and-place assembly. The 72XR20KLF is supplied in Bulk format, which may require manual handling or reeling for automated processes. Confirm compatibility with your assembly equipment before substitution.

Q: Do these parts have different moisture sensitivity levels?

A: The FT-63ETH203 has an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. The 72XR20KLF lists MSL as Not Applicable. Both parts can be stored and handled under standard conditions without moisture-related constraints.

Q: Are the adjustment mechanisms identical?

A: Yes. Both components feature side adjustment with 1 turn of rotation and cermet resistive material, providing equivalent tuning characteristics and mechanical feel.