PS12018-A Equivalent & Substitute Parts

Part Overview

The PS12018-A is an IGBT power driver module manufactured by Powerex Inc., designed for 3-phase applications with a rated voltage of 1.2 kV and current capacity of 25 A. The module features a 36-PowerDIP package with through-hole mounting and provides 2500Vrms isolation voltage. This part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

PS12018-A

Powerex Inc.In Stock: 935PS12018-A Datasheet

Current PartRFQ

PS22A76

Powerex Inc.In Stock: 1241PS22A76 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PS12018-A is determined by the following critical electrical and mechanical parameters:

• Voltage Rating: 1.2 kV (exact match required)
• Current Rating: 25 A (exact match required)
• Configuration: 3 Phase (exact match required)
• Isolation Voltage: 2500V minimum (2500Vrms or 2500VDC acceptable)
• Type: IGBT power driver module
• Mounting Type: Through Hole (required for PCB compatibility)

The PS22A76 qualifies as a substitute based on matching all critical electrical parameters. While the package differs in physical dimensions (42-PowerDip vs. 36-PowerDIP), both are through-hole mounted IGBT modules with identical voltage, current, and isolation specifications. The PS22A76 represents an active product with improved compliance status.

Parameter Comparison

Engineering Selection Recommendations

The PS22A76 is the qualified substitute for the PS12018-A based on the following factors:

Electrical Compatibility: Both parts maintain identical voltage (1.2 kV), current (25 A), and isolation specifications (2500V), ensuring functional equivalence in circuit operation.

Product Status: The PS22A76 is an active product, providing long-term availability and supply chain stability compared to the obsolete PS12018-A.

Compliance Improvement: The PS22A76 achieves RoHS compliance, whereas the PS12018-A is RoHS non-compliant. This distinction is significant for applications subject to environmental regulations.

Package Consideration: The PS22A76 uses a 42-PowerDip package (1.404", 35.67mm) versus the 36-PowerDIP package (2.480", 63.00mm) of the PS12018-A. Both are through-hole mounted modules; however, PCB layout modifications may be required to accommodate the different footprint dimensions.

Frequently Asked Questions (FAQ)

Q: Can PS22A76 directly replace PS12018-A without circuit modifications?

A: Electrical parameters are fully compatible. However, the different package dimensions (42-PowerDip vs. 36-PowerDIP) require PCB footprint verification and potential layout adjustments. Pin configuration and signal routing must be confirmed against manufacturer datasheets.

Q: What is the significance of the isolation voltage difference (2500Vrms vs. 2500VDC)?

A: Both specifications provide equivalent isolation performance at 2500V. The difference in notation (RMS vs. DC) reflects measurement methodology but does not affect functional substitution for applications requiring 2500V isolation.

Q: Is RoHS compliance a mandatory requirement for substitution?

A: RoHS compliance is a regulatory consideration dependent on application and market requirements. The PS22A76's RoHS compliance provides an advantage for regulated applications, while the PS12018-A's non-compliance may be acceptable for legacy systems or non-regulated markets.

Q: Are there any current inventory considerations?

A: The PS12018-A has 833 units in stock (obsolete status), while the PS22A76 has 1210 units available (active product). For new designs or long-term support, the PS22A76 offers superior supply chain continuity.

Q: What mounting compatibility should be verified?

A: Both parts use through-hole mounting, ensuring compatibility with standard PCB assembly processes. Verify hole spacing, diameter, and pad layout against the specific package dimensions of each module before finalizing board design.