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$40.00
| Voltage | AH/kVA | Length | Width | Height | Weight |
|---|---|---|---|---|---|
| 600 V | 400 A | N/A | N/A | N/A | โ 600 – 700 g |
| Voltage | 600 V |
| Amp/H | 400 A |
| Length | N/A |
| Width | N/A |
| Height | N/A |
| Weight | โ 600 – 700 g |
600ย V, 400ย A dual Darlington power transistor module (SanRex SQD series) for high-current converters,
VVVF motor control, UPS front ends, and industrial power supplies. Each transistor includes a reverse-parallel
fast-recovery diode; the mounting base is electrically insulated for straightforward heatsink design.
| Parameter | Value |
| Manufacturer | SanRex (Sansha Electric) |
| Part Number | SQD400A60S |
| Device Type | Dual Darlington transistor module with reverse-parallel FRDs |
| Collector-Base Voltage (VCBO) | 600ย V |
| Collector-Emitter Sustaining (VCEX) | 600ย V (VBE=โ2ย V) |
| Emitter-Base Voltage (VEBO) | 10ย V |
| Continuous Collector Current (IC) | 400ย A (DC) |
| Peak Collector Current (IC(pulse)) | 800ย A (โคย 1ย ms) |
| Reverse Collector Current (โIC) | 400ย A |
| Base Current (IB) | 24ย A (cont.) |
| Total Power Dissipation (PT) | โย 1.8ย kW @ TC=25ย ยฐC |
| VCE(sat) / VBE(sat) | โคย 2.0ย V / โคย 2.5ย V @ IC=400ย A, IB=5ย A |
| DC Current Gain (hFE) | โฅย 75 @ VCE=2ย V; โฅย 100 @ VCE=5ย V (IC=400ย A) |
| Switching Times (typ.) | ton โย 2.5ย ยตs; ts โย 12ย ยตs; tf โย 3.0ย ยตs (VCC=300ย V, rated I) |
| Diode (per element) | IF=400ย A; IFSM โย 3000ย A; VFM โย 1.9ย V; fast recovery |
| Thermal Resistance | RฮธJC(Tr) โย 0.09ย ยฐC/W; RฮธJC(Diode) โย 0.30ย ยฐC/W; RฮธCS โย 0.03ย ยฐC/W |
| Isolation (baseplate) | 2.5ย kVRMS / 1ย min (terminalsโbase) |
| Operating / Storage | Tj โ40โฆ+150ย ยฐC; Tstg โ40โฆ+125ย ยฐC |
| Package / Footprint | Screw terminals; isolated copper base; standard SQD outline (~108ร62ร30ย mm) |
| Configuration | Dual Darlington transistors with reverse-parallel FRDs |
| Module | Applications | Notes |
| SQD400A60S | VVVF motor drives; UPS/inverters; high-current DC supplies | Observe base-drive and thermal limits; maintain 2.5ย kV isolation and proper torque. |
