67PR50KLF Trimmer Potentiometer - Equivalent & Substitute Parts

Part Overview

The 67PR50KLF is a 50 kOhm, 0.5W through-hole trimmer potentiometer manufactured by TT Electronics/BI. This cermet-based component features top adjustment via PC pins and is designed for applications requiring precision resistance tuning in compact form factors. The part maintains Active product status with full RoHS3 compliance and REACH unaffected classification, making it suitable for current production environments.

Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit alternative adjustment mechanisms or package configurations while maintaining core electrical specifications.

Substiute Parts

67PR50KLF

TT Electronics/BIIn Stock: 110967PR50KLF Datasheet

Current PartRFQ

T93XA503KT20

Vishay SferniceIn Stock: 970T93XA503KT20 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 67PR50KLF is determined by strict alignment of core electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 50 kOhms (exact match required)
• Power rating: 0.5W minimum
• Tolerance: ±10% or better
• Temperature coefficient: ±100ppm/°C or better
• Resistive material: Cermet
• Mounting type: Through Hole
• Termination style: PC Pins
• Compliance: RoHS3 Compliant minimum

Allowable Variations:

• Adjustment type (Top vs. Side)
• Number of turns (within ±5% operational range)
• Physical dimensions (within PCB layout constraints)
• Packaging format (Bulk vs. Tube)
• Manufacturer identity

The T93XA503KT20 qualifies as a direct substitute based on matching all critical electrical parameters and compliance requirements. Variation in adjustment mechanism (Side vs. Top) and turn count (21 vs. 20) remain within acceptable engineering tolerances for trimmer potentiometer applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 67PR50KLF and T93XA503KT20 maintain Active product status with full RoHS3 compliance, ensuring regulatory alignment for current and future production requirements. Selection between these parts should be based on:

67PR50KLF Selection Criteria:

• Designs requiring top-mounted adjustment access
• Applications where larger footprint (11.10mm x 9.53mm) accommodates existing PCB layouts
• Preference for 20-turn configuration
• Bulk packaging requirements

T93XA503KT20 Selection Criteria:

• Designs requiring side-mounted adjustment access
• Space-constrained applications benefiting from smaller footprint (9.70mm x 5.00mm)
• Acceptance of 21-turn configuration
• Tube packaging compatibility
• Supply availability prioritization

Both parts satisfy identical electrical specifications and compliance certifications. Physical dimension differences and adjustment mechanism variation represent the primary design considerations for substitution decisions.

Frequently Asked Questions (FAQ)

Q: Can T93XA503KT20 replace 67PR50KLF in existing designs without circuit modification?

A: Yes, provided the PCB layout accommodates the smaller footprint (9.70mm x 5.00mm vs. 11.10mm x 9.53mm) and the side adjustment mechanism is accessible in the application. Electrical performance remains identical across all specified parameters.

Q: What is the significance of the 1-turn difference (20 vs. 21 turns)?

A: The turn count difference represents a 5% variation in adjustment resolution. Both configurations deliver the same resistance range and tuning capability within the ±10% tolerance specification. This variation is standard across equivalent trimmer potentiometer families.

Q: Are there compliance or certification differences between these parts?

A: Both parts maintain RoHS3 compliance and Active product status. The T93XA503KT20 carries REACH Affected classification, while the 67PR50KLF is REACH Unaffected. Both meet current regulatory requirements for electronic component applications.

Q: How do adjustment mechanisms (Top vs. Side) affect circuit performance?

A: Adjustment mechanism type affects physical access and PCB layout only. Electrical performance, resistance accuracy, temperature stability, and power handling remain identical between top and side adjustment configurations.

Q: What packaging considerations apply to substitution?

A: The 67PR50KLF ships in Bulk packaging; the T93XA503KT20 ships in Tube packaging. Packaging format does not affect component performance or compatibility. Selection depends on inventory management and handling requirements.