STMicroelectronics STPS30H100CTN

Overview

STPS30H100CTN from STMicroelectronics is a dual common-cathode Schottky rectifier optimized for high-frequency switch-mode power supplies, featuring 100 V repetitive peak reverse voltage, 2 × 15 A average forward current per diode at TC = 155 °C, 0.64 V typical forward voltage drop at 15 A and 125 °C, avalanche rating up to 778 W (tp = 10 µs), and TO-220AB package with UL94 V0 epoxy.

For engineers reviewing the STPS30H100CTN datasheet, STPS30H100CTN pinout, STPS30H100CTN application, or STPS30H100CTN equivalent, key selection factors include conduction loss modeling (P = 0.54 × IF(AV) + 0.0086 × IF²(RMS)), thermal coupling between diodes (Rth(c) = 0.10 °C/W), and junction-to-case thermal resistance of 1.6 °C/W per diode - critical for SMPS thermal design and DC/DC converter reliability validation.

Technical Context

This dual Schottky rectifier integrates two independent anodes sharing a common cathode terminal, enabling synchronous half-bridge or dual-output configurations in isolated DC/DC converters. Its low VF and negligible switching losses stem from metal–semiconductor junction physics rather than PN junction recovery, eliminating minority-carrier storage delay.

The device is rated for 175 °C maximum junction temperature and features avalanche energy capability validated under 10 µs pulses at 125 °C. Thermal derating accounts for mutual heating: ΔTj(diode 1) = P(diode1) × 1.6 + P(diode 2) × 0.10 °C/W, requiring careful layout separation or shared heatsink design.

Key Specifications

Pinout & Package

STPS30H100CTN is housed in a TO-220AB package with three leads: two anodes (A1, A2) and one common cathode (K). The case is electrically isolated and serves as a thermal path only; no internal connection to K or A terminals. Mounting requires 0.55 N·m recommended torque (max 0.70 N·m) onto a heatsink.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-30CPH01-M3 and MBR30H100CT, STPS30H100CTN uniquely balances TO-220AB footprint compatibility, verified 778 W avalanche capability, and 0.64 V VF at elevated temperature - making it optimal for thermally constrained, reliability-critical 15 A DC/DC outputs.

Availability

STPS30H100CTN is available at Aetrix Electronics and suitable for AC-DC adapters, industrial DC/DC converters, and LED driver power supplies requiring stable component supply, long-term lifecycle support, and traceable ECOPACK®2-compliant sourcing.

Supply support for STPS30H100CTN 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, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.

STPS30H100CTN belongs to ST's high-voltage Schottky rectifier product line, engineered specifically for high-frequency, high-efficiency power conversion in space-constrained adapters and distributed power architectures.

FAQ

What is the maximum allowable case temperature for continuous operation?

The device supports continuous operation up to TC = 155 °C per diode, as specified in the absolute ratings table. At this temperature, each diode delivers 15 A average forward current. Exceeding 155 °C requires derating per Figure 2, which shows linear decline to zero current at 175 °C ambient with Rth(j-a) = 15 °C/W.

How is thermal coupling between the two diodes modeled in layout?

Thermal coupling is quantified by Rth(c) = 0.10 °C/W: power dissipated in Diode 2 raises Diode 1's junction temperature by 0.10 × P₂. Layout must allocate ≥10 mm copper clearance between anode pads or use separate thermal vias to minimize this effect in high-power dual-rail designs.

Does STPS30H100CTN support paralleling for higher current?

No - the dual-diode structure shares a single cathode and case, preventing independent current sharing. For >15 A per leg, use discrete TO-220 Schottky diodes (e.g., STPS20H100CG) with matched VF and separate thermal paths to avoid thermal runaway.

Is the TO-220AB package lead-free and RoHS compliant?

Yes - STPS30H100CTN carries ECOPACK®2 certification, confirming full compliance with EU RoHS Directive 2011/65/EU, including lead-free terminations and halogen-free epoxy. The "N" suffix in the part number explicitly denotes RoHS-compliant packaging.