SM-3TA104 Equivalent & Substitute Parts

Part Overview

The SM-3TA104 is a surface mount trimmer potentiometer manufactured by Nidec Components Corporation. It provides 100 kOhms resistance at 0.125W (1/8W) power rating with 11-turn side adjustment capability. The component uses cermet resistive material and J lead termination for reliable performance in precision adjustment applications. This part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts may be required due to inventory availability, supply chain considerations, or design flexibility across qualified alternatives.

Substiute Parts

SM-3TA104

Nidec Components CorporationIn Stock: 837SM-3TA104 Datasheet

Current PartRFQ

3223J-1-104E

Bourns Inc.In Stock: 12163223J-1-104E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The SM-3TA104 and its substitute 3223J-1-104E are functionally equivalent based on the following critical parameters:

• Resistance value: 100 kOhms (identical)
• Power rating: 0.125W, 1/8W (identical)
• Tolerance: ±20% (identical)
• Temperature coefficient: ±100ppm/°C (identical)
• Number of turns: 11 (identical)
• Adjustment type: Side Adjustment (identical)
• Resistive material: Cermet (identical)
• Mounting type: Surface Mount (identical)
• Termination style: J Lead (identical)
• Moisture sensitivity level: 1 (Unlimited) (identical)
• RoHS3 compliance: Both compliant

These parameters define the substitution criteria for this product category. Both parts meet the same electrical and mechanical specifications required for direct replacement in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both the SM-3TA104 and 3223J-1-104E are active production components with full RoHS3 compliance and unlimited moisture sensitivity ratings. Selection between these parts should be based on:

• PCB layout constraints: The SM-3TA104 features a square footprint (0.154" x 0.154"), while the 3223J-1-104E has a rectangular footprint (0.154" x 0.125"). Verify PCB design accommodates the selected geometry.
• Supply chain availability: Both manufacturers maintain active inventory. Choose based on current stock levels and lead time requirements.
• Regulatory compliance: Both parts meet ROHS3 requirements. The 3223J-1-104E carries REACH Affected status, while the SM-3TA104 is REACH Unaffected. Verify compliance requirements for your application region.
• Manufacturer qualification: Confirm your design has qualified either Nidec or Bourns components for this application.

Frequently Asked Questions (FAQ)

Q: Can the 3223J-1-104E replace the SM-3TA104 in my circuit?

A: Yes, the 3223J-1-104E is electrically equivalent to the SM-3TA104. Both components share identical resistance, power rating, tolerance, temperature coefficient, number of turns, adjustment type, and resistive material. Verify that your PCB layout accommodates the rectangular footprint of the 3223J-1-104E (0.154" x 0.125") versus the square footprint of the SM-3TA104 (0.154" x 0.154").

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: resistance value (100 kOhms), power rating (0.125W), tolerance (±20%), temperature coefficient (±100ppm/°C), number of turns (11), adjustment type (Side Adjustment), resistive material (Cermet), mounting type (Surface Mount), termination style (J Lead), and moisture sensitivity level (1 - Unlimited).

Q: Are there any compliance differences between these parts?

A: Both parts are ROHS3 compliant with unlimited moisture sensitivity. The SM-3TA104 is REACH Unaffected, while the 3223J-1-104E is REACH Affected. Verify your application's regulatory requirements before selection.

Q: What is the primary dimensional difference between these parts?

A: The SM-3TA104 has a square face dimension of 0.154" x 0.154" (3.90mm x 3.90mm), while the 3223J-1-104E has a rectangular face dimension of 0.154" x 0.125" (3.90mm x 3.18mm). Both use J lead termination and surface mount technology.

Q: Can I use these parts interchangeably in production?

A: Electrical interchangeability is confirmed. Mechanical interchangeability depends on PCB layout design. Verify footprint compatibility and confirm both manufacturers are qualified suppliers in your design documentation before implementing production changes.