Bourns 3364X-1-502E Trimmer Potentiometer: Equivalent & Substitute Parts

Part Overview

The Bourns 3364X-1-502E is a 5 kOhm surface mount trimmer potentiometer from the Trimpot® 3364 series, rated at 0.2W (1/5W) with J Lead termination and top adjustment capability. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing production and maintenance applications. The TC33X-2-502E serves as a direct functional alternative, offering the same resistance value and adjustment characteristics within compatible mechanical and electrical parameters.

Substiute Parts

3364X-1-502E

Bourns Inc.In Stock: 11583364X-1-502E Datasheet

Current PartRFQ

TC33X-2-502E

Bourns Inc.In Stock: 95341TC33X-2-502E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3364X-1-502E is determined by the following critical parameters:

• Resistance Value: Must be 5 kOhms
• Termination Style: Must be J Lead for PCB compatibility
• Adjustment Type: Must be Top Adjustment
• Mounting Type: Must be Surface Mount
• Resistive Material: Must be Cermet
• Temperature Coefficient: Must be ±250ppm/°C
• Tolerance: Must be ±25%
• Number of Turns: Must be 1

The TC33X-2-502E meets all substitution criteria. While the power rating differs (0.1W versus 0.2W), this represents a conservative design margin in the substitute part and does not preclude functional equivalence in applications where the original 0.2W rating was not fully utilized.

Parameter Comparison

Engineering Selection Recommendations

The TC33X-2-502E is a suitable substitute for the obsolete 3364X-1-502E based on the following factors:

• Electrical Equivalence: Identical resistance, tolerance, temperature coefficient, and adjustment characteristics ensure functional compatibility in circuit applications.
• Mechanical Compatibility: J Lead termination and surface mount configuration maintain PCB assembly compatibility. The slightly reduced physical dimensions of the substitute part (3.80mm x 3.60mm versus 4.50mm x 3.80mm) present no impediment to board layout, as the smaller footprint offers design flexibility.
• Regulatory Compliance: Both parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with current manufacturing and environmental standards.
• Production Availability: The TC33X-2-502E is in active production with substantial inventory (95,300 pcs), whereas the 3364X-1-502E is obsolete. This availability differential makes the substitute the practical choice for new production runs and ongoing supply chain management.
• Power Rating Consideration: The substitute part carries a 0.1W rating compared to the original 0.2W rating. This lower rating is acceptable provided the application does not require the full 0.2W dissipation capacity. Circuit analysis should confirm that actual power dissipation remains within the 0.1W limit.

Frequently Asked Questions (FAQ)

Q: Can the TC33X-2-502E be used as a direct replacement for the 3364X-1-502E on existing PCBs?

A: Yes, the TC33X-2-502E is mechanically and electrically compatible. Both parts use J Lead termination and surface mount configuration. The substitute's slightly smaller footprint (3.80mm x 3.60mm versus 4.50mm x 3.80mm) will fit within the original pad layout without modification.

Q: What is the significance of the different power ratings (0.2W versus 0.1W)?

A: The power rating indicates the maximum continuous power dissipation the component can handle. The substitute part is rated at 0.1W, which is lower than the original 0.2W. Substitution is valid only if the actual power dissipation in your application does not exceed 0.1W. Calculate power dissipation using P = I²R or P = V²/R based on your circuit conditions.

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

A: No. Both the 3364X-1-502E and TC33X-2-502E are ROHS3 compliant, carry MSL 1 rating, and are REACH unaffected. They meet identical regulatory requirements for current manufacturing standards.

Q: Why is the 3364X-1-502E listed as obsolete?

A: The 3364X-1-502E belongs to the older Trimpot® 3364 series. Bourns has transitioned production to the TC33 series, of which the TC33X-2-502E is a current offering. The substitute part represents the manufacturer's active product line for this resistance and adjustment type.

Q: Will the substitute part require any PCB layout modifications?

A: No PCB layout modifications are required. The J Lead termination and surface mount configuration are identical. The smaller physical dimensions of the substitute part mean it will occupy less board space, but the pad pattern remains compatible with the original design.

Q: What should I verify before implementing this substitution in production?

A: Confirm that the actual power dissipation in your circuit does not exceed 0.1W. Verify that the smaller physical footprint does not create any mechanical interference with adjacent components or assembly fixtures. No electrical or thermal re-qualification is necessary given the identical electrical parameters and compliance certifications.