STMicroelectronics STPS40M60CR

Overview

STPS40M60CR from STMicroelectronics is a dual high-efficiency 60 V Schottky rectifier in I2PAK package, rated for 2 × 20 A average forward current per diode, 60 V repetitive peak reverse voltage, and 150 °C maximum junction temperature. It delivers low forward voltage drop (0.385 V typ. at 5 A, 25 °C) and low leakage current (25 µA max. at 60 V, 25 °C), enabling high-efficiency operation in notebook and desktop AC/DC adapters.

For engineers reviewing the STPS40M60CR datasheet, STPS40M60CR pinout, STPS40M60CR application, or STPS40M60CR equivalent, key selection criteria include dual-diode thermal coupling behavior, avalanche energy rating (23 kW peak, 1 µs), junction-to-case thermal resistance (1.40 °C/W per diode), and I2PAK mechanical footprint compatibility with high-power SMPS layouts.

Technical Context

This dual common-cathode Schottky rectifier integrates two independent diodes sharing a single cathode terminal (K), optimized for synchronous or interleaved high-frequency switch-mode power supplies. Its low VF and fast recovery eliminate minority-carrier storage delay, supporting >100 kHz operation without snubbers.

Thermal design relies on conduction cooling via the exposed drain tab; per-diode junction-to-case resistance is 1.40 °C/W, while inter-diode thermal coupling (Rth(c) = 0.50 °C/W) enables accurate loss distribution modeling when both diodes conduct simultaneously under δ = 0.5 duty cycle.

Key Specifications

Pinout & Package

Package: I2PAK (TO-263), surface-mount with isolated mounting tab, ECOPACK® compliant, recommended torque 0.4–0.6 N·m.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-40CPH06 and MBR4060CT, STPS40M60CR offers superior thermal density (1.40 °C/W), lower conduction loss (0.385 V typ.), and verified avalanche robustness-making it optimal for compact, high-frequency, high-reliability adapter designs where board space and thermal management are constrained.

Availability

STPS40M60CR is available at Aetrix Electronics and suitable for notebook AC/DC adapters, game console power supplies, and USB-C PD fast chargers requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial and consumer OEM programs.

Supply support for STPS40M60CR 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.

STPS40M60CR belongs to ST's high-efficiency Schottky rectifier product line, engineered specifically for high-frequency, high-density AC/DC and DC/DC converters where low VF, thermal coupling control, and avalanche ruggedness are critical.

FAQ

What is the maximum continuous power dissipation per diode at Tc = 130 °C?

At Tc = 130 °C, the maximum average forward current per diode is 20 A. Using the conduction loss equation P = 0.395 × IF(AV) + 0.007 × IF²(RMS), and assuming IF(RMS) ≈ 1.57 × IF(AV) for δ = 0.5, power dissipation is approximately 12.6 W per diode. This aligns with Figure 2, which shows ~13 W at 20 A.

Can STPS40M60CR be used in parallel with another identical device?

No-parallel operation is not recommended. The device uses a common cathode configuration with internal thermal coupling; paralleling two STPS40M60CR units would cause unbalanced current sharing due to VF mismatch and unequal thermal paths, risking thermal runaway. Use a single higher-current part like STPS60M60CG instead.

Is the I2PAK package electrically insulated?

No-the I2PAK package has an electrically conductive mounting tab connected to the cathode (K) terminal. Electrical isolation requires a thermally conductive but electrically insulating pad (e.g., ceramic or polyimide) between the tab and heatsink, with appropriate creepage/clearance verification per IEC 62368-1.

Does STPS40M60CR support reflow soldering per JEDEC J-STD-020?

Yes-ST specifies the I2PAK package for lead-free reflow per JEDEC J-STD-020D, with peak temperature ≤ 260 °C, 60-second duration above 217 °C, and ramp rate ≤ 3 °C/s. The ECOPACK® designation confirms halogen-free, RoHS-compliant materials compatible with standard Pb-free assembly lines.