STMicroelectronics STPS20L60CT

Overview

STPS20L60CT from STMicroelectronics is a dual-center-tab Schottky rectifier in TO-220AB package, rated for 60 V repetitive peak reverse voltage and 2 × 10 A average forward current per diode at T_c = 135 °C. It delivers low forward voltage drop (0.48 V typ. at 10 A, 125 °C), negligible switching losses, and avalanche capability up to 430 W (10 µs pulse), making it suitable for high-frequency DC/DC converters in notebook adapters.

For engineers reviewing the STPS20L60CT datasheet, STPS20L60CT pinout, STPS20L60CT application, or STPS20L60CT equivalent, key selection criteria include thermal resistance (R_th(j-c) = 0.85 °C/W total), dV/dt rating (10,000 V/µs), junction temperature limit (150 °C), and ECOPACK2 compliance for industrial power conversion designs.

Technical Context

This dual-diode Schottky rectifier integrates two independent 60 V, 10 A diodes sharing a common cathode tab - enabling synchronous rectification or dual-output SMPS topologies. Its low VF and negligible reverse recovery minimize conduction and switching losses in high-frequency (>100 kHz) operation.

The device uses planar Schottky barrier technology with optimized metal-semiconductor interface and silicon die layout to achieve stable avalanche energy handling (430 W @ 125 °C, 10 µs) and robust thermal coupling (R_th(c) = 0.1 °C/W between diodes), critical for thermally balanced dual-channel operation.

Key Specifications

Pinout & Package

TO-220AB package with center-tab cathode configuration: three leads - Cathode (center tab, electrically connected to metal mounting surface), Anode 1 (left lead), Anode 2 (right lead). Tab is isolated from leads but serves as common cathode terminal and primary thermal path.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-20CPH06 and MBR2060CT, STPS20L60CT offers superior thermal performance (0.85 °C/W vs. ≥1.0 °C/W), lower conduction loss (0.48 V vs. ≥0.65 V), and guaranteed avalanche energy - making it optimal for compact, high-efficiency, and ruggedized power supplies.

Availability

STPS20L60CT is available at Aetrix Electronics and suitable for set-top box power supplies, notebook adapters, and DC/DC converters requiring stable component supply across extended production lifecycles.

Supply support for STPS20L60CT 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, power, microcontroller, and sensor solutions for automotive, industrial, and consumer markets.

The STPS series targets high-efficiency AC/DC and DC/DC power conversion, emphasizing low-loss Schottky rectification for compact, thermally efficient, and environmentally compliant power supplies.

FAQ

What is the maximum continuous junction temperature for STPS20L60CT?

The absolute maximum operating junction temperature is 150 °C, validated under steady-state conditions with case temperature maintained at 135 °C and square-wave duty cycle δ = 0.5. Exceeding this limit risks irreversible degradation of the Schottky barrier and thermal runaway.

Can STPS20L60CT be used in parallel with another identical device?

No - the device is not characterized for parallel operation. Its dual-diode structure shares a single thermal path and cathode tab; paralleling would cause uneven current sharing due to parameter mismatch and thermal coupling, violating absolute ratings.

Is the TO-220AB tab electrically isolated from the leads?

No - the center tab is the common cathode terminal and is electrically connected to the cathode metallization. It must be electrically insulated from the heatsink unless the system design intentionally references the cathode to chassis ground.

Does STPS20L60CT require a minimum heatsink area?

Yes - for continuous 20 A total conduction, a minimum copper area of ≥30 cm² on FR4 PCB (per Figure 7 in DS1595) is required to maintain R_th(j-a) ≤ 40 °C/W. Smaller heatsinks demand derating per Figure 1 (IF(AV) vs. Tc curve).