EVM-MSGA01B55 Equivalent & Substitute Parts

Part Overview

The EVM-MSGA01B55 is a 500 kOhms 0.5W trimmer potentiometer manufactured by Panasonic Electronic Components. This through-hole component features PC pin termination, cermet resistive material, and top adjustment capability in a square form factor. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, repair, and redesign applications.

Substiute Parts

EVM-MSGA01B55

Panasonic Electronic ComponentsIn Stock: 1035EVM-MSGA01B55 Datasheet

Current PartRFQ

3329H-1-504

Bourns Inc.In Stock: 10773329H-1-504 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EVM-MSGA01B55 is determined by the following critical parameters:

• Resistance Value: 500 kOhms (exact match required)
• Power Rating: 0.5W minimum (1/2W)
• Number of Turns: 1 turn (single-turn adjustment)
• Adjustment Type: Top Adjustment (screw access from component top)
• Resistive Material: Cermet (ceramic-metal composition)
• Mounting Type: Through Hole (PCB insertion)
• Termination Style: PC Pins (printed circuit board connection)

The Bourns 3329H-1-504 meets all mandatory electrical and mechanical parameters. While dimensional differences exist (round vs. square form factor), both components maintain identical electrical specifications, mounting methodology, and functional performance within the specified tolerance and power constraints.

Parameter Comparison

Engineering Selection Recommendations

The 3329H-1-504 serves as a direct functional equivalent for the obsolete EVM-MSGA01B55. Selection should be based on the following factors:

Product Status: The EVM-MSGA01B55 is obsolete with no ongoing manufacturing. The 3329H-1-504 maintains active production status, ensuring long-term availability and supply chain continuity.

Electrical Equivalence: Both components share identical resistance (500 kOhms), power rating (0.5W), turn count (1), and adjustment methodology (top adjustment). The 3329H-1-504 provides superior tolerance (±10% vs. ±20%), offering improved initial accuracy.

Compliance: Both components are RoHS non-compliant and share identical ECCN (EAR99) and HTSUS (8533.40.8050) classifications.

Physical Considerations: The primary difference is form factor geometry. The EVM-MSGA01B55 uses a square body (5.80mm x 5.80mm), while the 3329H-1-504 employs a round body (6.35mm diameter). PCB layout modifications may be required to accommodate the dimensional change.

Frequently Asked Questions (FAQ)

Q: Can the 3329H-1-504 directly replace the EVM-MSGA01B55 without circuit modification?

A: Electrical substitution is direct. The components are functionally equivalent across all specified parameters. Physical PCB layout may require adjustment due to form factor differences (square vs. round body).

Q: What is the tolerance difference between these components?

A: The EVM-MSGA01B55 specifies ±20% tolerance, while the 3329H-1-504 specifies ±10% tolerance. The Bourns component provides tighter initial accuracy.

Q: Are there any compliance or certification differences?

A: Both components share identical RoHS status (non-compliant), ECCN classification (EAR99), and HTSUS code (8533.40.8050). No compliance barriers exist for substitution.

Q: Why is the EVM-MSGA01B55 listed as obsolete?

A: Panasonic has discontinued this product line. The 3329H-1-504 from Bourns remains in active production and is the recommended alternative for new designs and ongoing support.

Q: Does the temperature coefficient specification affect substitution suitability?

A: The EVM-MSGA01B55 does not specify a temperature coefficient. The 3329H-1-504 specifies ±100ppm/°C. This additional specification in the substitute part provides documented thermal stability information for applications requiring temperature compensation analysis.

Q: What packaging format is available for the 3329H-1-504?

A: The 3329H-1-504 is supplied in tube packaging, compared to the EVM-MSGA01B55 standard packaging format.