STMicroelectronics STPS30SM60CR

Overview

STPS30SM60CR from STMicroelectronics is a dual common-cathode Schottky rectifier in I2PAK package, rated for 60 V repetitive peak reverse voltage and 2 × 15 A average forward current per diode at Tc = 130 °C, with typical forward voltage of 0.405 V at 125 °C and 7.5 A - optimized for high-frequency SMPS in notebook and desktop adapters.

For engineers reviewing the STPS30SM60CR datasheet, STPS30SM60CR pinout, STPS30SM60CR application, or STPS30SM60CR equivalent, key selection criteria include avalanche energy rating (14.4 kW pulse), thermal resistance (Rth(j–c) = 1.5 °C/W per diode), low VF stability over temperature, and dual-diode layout for interleaved or parallel output rectification.

Technical Context

This dual Schottky rectifier integrates two independent anodes sharing a common cathode terminal, enabling synchronous or split-output configurations in DC–DC converters. Its avalanche-rated structure supports transient surge handling up to 300 A non-repetitive, while the low VF and fast recovery (<100 ns) minimize conduction and switching losses in 100–500 kHz SMPS topologies.

The device operates with maximum junction temperature of 150 °C and uses conduction cooling via the exposed tab. Thermal coupling between diodes is quantified by Rth(c) = 0.2 °C/W, allowing accurate loss summation when both diodes conduct simultaneously under shared heatsink conditions.

Key Specifications

Pinout & Package

Package: I2PAK (TO-263), surface-mount with isolated tab, epoxy body compliant with UL94 V0. Mounting 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 MBR3060CT and VS-30CPH06-M3, STPS30SM60CR uniquely combines I2PAK surface-mount compatibility, sub-0.41 V VF at elevated temperature, and validated 14.4 kW avalanche capability - making it optimal for space-constrained, high-reliability 45–65 W adapters.

Availability

STPS30SM60CR is available at Aetrix Electronics and suitable for notebook adapters, desktop PC SMPS units, game console power supplies, and USB-C PD fast chargers requiring stable component supply and consistent thermal performance across production batches.

Supply support for STPS30SM60CR 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 industrial, automotive, and consumer markets.

The STPS30SM60CR belongs to ST's high-efficiency Schottky rectifier product line, engineered specifically for high-frequency, high-density AC–DC and DC–DC power conversion in portable and computing applications.

FAQ

What is the maximum allowable case temperature for continuous operation?

The STPS30SM60CR is rated for 15 A average forward current per diode at Tc = 130 °C. Exceeding this case temperature requires derating per Figure 3 in the datasheet; sustained operation above 130 °C risks thermal runaway due to VF negative temperature coefficient. Designers must maintain Tc ≤ 130 °C using verified heatsink and PCB copper area.

Can STPS30SM60CR be used in parallel with another unit for higher current?

No - the STPS30SM60CR is not characterized for paralleling. Its VF mismatch between units (±0.065 V at 15 A/25 °C) causes current imbalance exceeding 25%, risking thermal runaway in one device. For >30 A, use a single higher-rated part such as STPS40SM60CG or redesign with interleaved topology.

Is the common cathode internally bonded or externally accessible?

The common cathode (K) is a single external terminal - physically and electrically shared between both diodes. It appears as one metal tab on the I2PAK package bottom and is soldered directly to the PCB thermal pad. No internal isolation exists; both anodes feed into this unified output node.

Does the avalanche rating apply to both diodes simultaneously?

Yes - the 14.4 kW PARM rating applies per diode, but testing assumes only one diode is subjected to avalanche stress at a time. Simultaneous avalanche on both diodes is not characterized; system design must ensure fault conditions activate only one diode's avalanche path, typically via transformer coupling or circuit asymmetry.