STMicroelectronics STPS30H100CW

Overview

STPS30H100CW from STMicroelectronics is a dual common-cathode Schottky rectifier in TO-247 package, rated for 100 V repetitive peak reverse voltage, 30 A total average forward current (15 A per diode), and 175 °C maximum junction temperature. It delivers low forward voltage drop (0.64 V typ. at 15 A, 125 °C) with negligible switching losses, optimized for high-frequency DC/DC converters and LED lighting power stages.

For engineers reviewing the STPS30H100CW datasheet, STPS30H100CW pinout, STPS30H100CW application, or STPS30H100CW equivalent, key selection criteria include avalanche rating (778 W, 10 µs), thermal resistance (0.9 °C/W total junction-to-case), leakage current (≤6 mA at 125 °C), and dual-diode thermal coupling behavior under simultaneous conduction.

Technical Context

This dual Schottky rectifier integrates two independent anodes sharing a common cathode terminal, enabling synchronous half-bridge or dual-output configurations. Its low VF–IR trade-off is achieved via platinum-doped silicon and optimized metal–semiconductor interface, supporting operation up to 175 °C without thermal runaway under proper heatsinking (Rth(j-a) ≤ 15 °C/W).

The device is avalanche-rated for unclamped inductive switching events, with specified repetitive peak avalanche power of 778 W at Tj = 125 °C and tp = 10 µs. Thermal coupling between diodes is quantified by Rth(c) = 0.10 °C/W, allowing accurate junction temperature estimation when both diodes conduct simultaneously.

Key Specifications

Pinout & Package

STPS30H100CW is housed in a TO-247 package with three terminals: two anodes (A1, A2) and one common cathode (K). The case is electrically isolated and thermally connected to the cathode tab, requiring insulated mounting hardware. Package dimensions comply with JEDEC TO-247 standard (L = 14.2–14.8 mm, D = 19.85–20.15 mm, e = 5.30–5.60 mm).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual Schottky rectifier applications.

Compared with VS-30CPH01-M3 and MUR3020CT, STPS30H100CW offers superior thermal performance (0.9 °C/W vs. ≥1.2 °C/W), lower conduction loss (0.64 V vs. ≥0.72 V), and certified avalanche ruggedness-critical for compact, high-power-density DC/DC and LED systems.

Availability

STPS30H100CW is available at Aetrix Electronics and suitable for LED lighting drivers, server point-of-load converters, and industrial AC/DC adapters requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for STPS30H100CW includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing analog, digital, and mixed-signal ICs for automotive, industrial, and power applications.

The STPS series targets high-efficiency power conversion, with STPS30H100CW specifically engineered for high-frequency, high-current Schottky rectification in space-constrained and thermally demanding environments.

FAQ

What is the maximum allowable case temperature for continuous operation?

The datasheet specifies IF(AV) = 30 A at TC = 150 °C for the full device. Operation above 150 °C case temperature requires derating per Figure 2; sustained TC > 155 °C risks exceeding 175 °C junction limit unless thermal resistance is below 0.67 °C/W, which exceeds the device's 0.9 °C/W rating.

Can STPS30H100CW be used in parallel with another unit for 60 A total current?

No-parallel operation is not recommended. The device lacks matched VF characteristics between units, and thermal coupling is internal (between A1/A2), not inter-device. Uneven current sharing would occur, risking thermal runaway in one unit even with identical heatsinking.

Is the cathode terminal electrically isolated from the TO-247 metal tab?

Yes-the cathode (K) is directly bonded to the metal tab, making the tab electrically live at cathode potential. Electrical isolation (e.g., mica washer or silicone pad) is mandatory when mounting to a grounded heatsink, otherwise short-circuit or safety hazard will result.

Does STPS30H100CW require a minimum reverse voltage to achieve rated IR performance?

No-reverse leakage current is characterized at VR = VRRM (100 V). The curve in Figure 5 shows IR rises gradually with VR; at 50 V, IR is <0.5 mA (typ, 125 °C), well below the 6 mA max at full 100 V. No minimum VR is needed to stabilize IR.