Powerex Inc. CD431490B

Mfr. Part

CD431490B

Manufacturer

Powerex, Inc. — Y-IC is a quality distributor for Powerex. We deliver genuine products, fast service, and expert support.

Detailed Description

Dual SCR power module in an isolated POW-R-BLOK package. 1400 V blocking voltage, 90 A class (95 A average on-state), high surge capability up to 2000/2100 A. Designed for chassis mounting and heavy-duty industrial power control. RoHS compliant.

Key Features

Two SCRs integrated in one isolated module

Series connection structure for higher voltage handling

1.4 kV off-state voltage (VDRM/VRRM)

95 A max average on-state current (It(AV))

150 A max RMS on-state current (It(RMS))

2000 A (50 Hz), 2100 A (60 Hz) non-repetitive surge current (Itsm)

Gate trigger: 3 V (max), 150 mA (max)

Holding current: 250 mA (max)

-40°C to +125°C junction temperature range

Chassis mount with isolated base for easy heatsink attachment

Bulk packaging

RoHS compliant

Key Advantages

Robust industrial design with high surge tolerance for demanding loads

Isolated baseplate simplifies mounting and improves safety at high voltage

Integrated dual SCRs reduce wiring and assembly time

Stable triggering and holding characteristics for reliable control

Wide operating temperature range suitable for harsh environments

Proven Powerex reliability and long field history

Packaging

Type: POW-R-BLOK isolated base power module, chassis mount

Material: Molded high-temperature plastic case with an isolated metal baseplate (copper-based) for heatsink attachment

Size: Industry-standard power module form factor (see datasheet for exact outline and hole pattern)

Pin/Terminal Configuration: Screw-type main power terminals; dedicated gate and cathode terminals for each SCR (refer to datasheet for exact labeling and terminal layout)

Thermal Characteristics: Low case-to-heatsink thermal resistance via metal baseplate; use thermal grease or pad and proper mounting torque; junction temperature up to 125°C; requires suitable heatsink for rated current

Electrical Properties: 1.4 kV off-state, 3 V/150 mA gate trigger (max), 250 mA holding (max), 95 A It(AV), 150 A It(RMS), 2000/2100 A surge capability; series-connected dual SCR topology

Lifecycle

Current status: No public end-of-life notice found; commonly supplied in industrial markets

Nearing discontinuation: Not indicated at this time

Equivalent or alternative models: Exact drop-in equivalents are applicationand outline-specific. Comparable options may exist within Powerex POW-R-BLOK ISO Dual SCR families and from other major brands (e.g., Littelfuse/IXYS, Semikron, Infineon). Because mounting patterns, terminal layouts, and gate parameters vary, please contact our sales team for a verified cross and the best fit for your design.

For definitive lifecycle and alternatives: Visit our website and reach out to Y-IC sales for current status, factory lead times, and cross-reference support.

Key Application Areas

AC motor soft starters and contactor replacement

Industrial heater control and phase-angle controllers

High-power AC switches for machine tools and process equipment

UPS bypass and static transfer switches

Welding equipment and power controllers

Power distribution, reactive power control, and high-voltage switching

Battery chargers and rectifier front ends (controlled rectification)

Elevator, HVAC, and pump drives requiring rugged AC control

Datasheet

Y-IC hosts the most authoritative datasheet for CD431490B. For full electrical curves, mechanical outline, terminal layout, and thermal recommendations, download the datasheet from this page now.

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