PS21964-4S Power Driver Module IGBT 3 Phase 600V for PSU

PS21964-4S 3-Phase IGBT Power Driver Module | 600V 15A in 25-PowerDIP for PSU Repair

The PS21964-4S is a 3-phase IGBT power driver module in the 25-PowerDIP through-hole package (33.30mm body) — an integrated three-phase IGBT bridge with built-in gate driver, designed for power management on industrial PSUs, inverters, motor drives, and high-power switching circuits. The module combines 6 IGBTs (3 high-side + 3 low-side) with their drivers in a single component.

Headline specs: 600V VCES, 15A continuous IC, 1500VDC isolation voltage, 25-PowerDIP through-hole mounting. The integrated driver simplifies the bill of materials vs discrete IGBT + driver designs.

When to Replace the PS21964-4S

• 3-phase inverter dead — one or more bridges failed open or short.
• Asymmetric phase output on motor drive or 3-phase PSU — one of the 6 IGBTs degraded.
• Visible damage on the 25-PowerDIP package — burnt or cracked.
• Isolation breakdown — 1500VDC barrier compromised, primary-to-secondary leakage.

PS21964-4S Specifications

FAQ — PS21964-4S IGBT Module

Q: How do I test the module before installation?
A: Use a multimeter in diode-test mode to check each IGBT's collector-emitter junction. Healthy IGBT shows OL one way and ~0.5V body-diode drop in reverse. Repeat for all 6 IGBTs (3 high-side + 3 low-side). Any shorted or open junction means replace the whole module — individual IGBT replacement isn't possible.

Q: 1500VDC isolation — when does it matter?
A: The isolation barrier separates the high-voltage power section (600V rails) from the low-voltage control logic. 1500VDC test rating ensures the barrier holds against transients and prevents control-side damage from primary-side faults.

Q: Rework profile?
A: Through-hole replacement — 25 pins to desolder. Use a hot air station to gently warm the bottom of the PCB while pulling the module from the top with even pressure. Re-install fresh module with correct pin-1 orientation, verify all 25 pins are properly soldered before power-up.

Q: Bulk pricing?
A: Yes — email contact@lys-sz.com for tray-quantity pricing.

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3-phase PSU repair benches stocking PS21964-4S modules in volume? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.