STMicroelectronics STPS30M60D

Overview

STPS30M60D from STMicroelectronics is a single silicon Schottky power rectifier in TO-220AC package, designed for high-frequency switch-mode power supplies. It delivers 30 A average forward current at 130 °C case temperature, features 60 V repetitive peak reverse voltage, and achieves typ. 0.385 V forward voltage drop at 125 °C and 10 A-enabling high-efficiency operation in notebook, desktop, and game station AC/DC adapters.

For engineers reviewing the STPS30M60D datasheet, STPS30M60D pinout, STPS30M60D application, or STPS30M60D equivalent, key selection criteria include avalanche energy rating (34.4 kW pulse), thermal resistance (0.9 °C/W junction-to-case), low VF at elevated temperature, reverse leakage stability up to 125 °C, and TO-220AC mechanical compatibility with standard heatsink mounting.

Technical Context

This Schottky rectifier operates without minority-carrier storage delay, enabling zero-recovery switching essential for >100 kHz SMPS topologies. Its low forward voltage (0.385–0.550 V across 10–20 A and 25–125 °C) directly reduces conduction loss, while its 80 V maximum repetitive avalanche voltage supports transient robustness during inductive turn-off events.

The device is rated for 450 A non-repetitive surge current (10 ms sine), exhibits 165 µA reverse leakage at 25 °C/VRRM, and maintains stable junction capacitance (~1000 pF at 30 mV, 1 MHz) - critical for EMI control in high-dV/dt environments.

Key Specifications

Pinout & Package

TO-220AC package with isolated tab (no internal connection to cathode), 3-pin outline: anode (pin 1), cathode (pin 2), metal tab (electrically connected to cathode). Mounting torque: 0.4–0.6 N·m. UL94 V0 epoxy, lead-free and RoHS-compliant per ECOPACK® specifications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-30CPH06-M3 and MBR3060CT, STPS30M60D provides superior thermal efficiency (0.9 °C/W), lower VF at high temperature, and guaranteed avalanche ruggedness - making it optimal for compact, high-reliability 30 A single-rail adapters where thermal headroom and transient immunity are critical.

Availability

STPS30M60D is available at Aetrix Electronics and suitable for desktop PC power adapters, notebook AC/DC adapters, game console PSUs, and industrial 24 V SMPS requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.

Supply support for STPS30M60D 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.

The STPS series targets high-efficiency AC/DC and DC/DC conversion, with STPS30M60D specifically engineered for cost-sensitive, thermally constrained 30–90 W adapter applications demanding reliability beyond standard Schottky specifications.

FAQ

Is STPS30M60D pin-compatible with standard TO-220AC rectifiers?

Yes. STPS30M60D uses the industry-standard TO-220AC footprint with anode on pin 1, cathode on pin 2, and cathode-connected metal tab. Mechanical dimensions match JEDEC TO-220AC spec (L6 = 15.25–15.75 mm, ØI = 3.75–3.85 mm), enabling direct replacement in existing layouts without pad or hole modification.

What is the maximum allowable case temperature for continuous 30 A operation?

The datasheet specifies IF(AV) = 30 A at Tc = 130 °C. Exceeding this temperature requires derating: at Tc = 100 °C, IF(AV) drops to ~22 A; at Tc = 75 °C, it falls to ~15 A. Thermal design must ensure case temperature stays ≤130 °C under worst-case ambient and airflow conditions.

Does STPS30M60D require a thermal pad or insulator when mounted to a heatsink?

Yes - the metal tab is electrically connected to the cathode. If the heatsink is grounded or at a different potential, a UL94 V0-certified insulating washer (e.g., mica or ceramic) and thermal grease must be used. Mounting torque must remain within 0.4–0.6 N·m to avoid cracking the epoxy body or compromising thermal contact.

How does the avalanche rating impact real-world reliability in SMPS designs?

The 80 V VARM rating (tp < 1 µs) allows STPS30M60D to safely absorb inductive energy from MOSFET turn-off without failure. In flyback converters, this prevents secondary-side voltage overshoot exceeding 65 V - eliminating need for external snubbers and improving MTBF by >3× versus non-avalanche Schottkys under mismatched transformer leakage conditions.