STMicroelectronics STPS30L60CFP

Overview

STPS30L60CFP from STMicroelectronics is a dual-center-tap Schottky rectifier in TO-220FPAB package, rated for 60 V repetitive peak reverse voltage and 15 A average forward current per diode (30 A total), with maximum forward voltage of 0.56 V at 15 A and 125 °C, designed for high-frequency DC–DC converters and SMPS secondary-side synchronous rectification.

For engineers reviewing the STPS30L60CFP datasheet, STPS30L60CFP pinout, STPS30L60CFP application, or STPS30L60CFP equivalent, this device delivers low conduction loss, negligible switching loss, avalanche-rated ruggedness (80 V VARM), and thermal resistance of 4.7 °C/W (junction-to-case per diode) - critical for compact, high-efficiency power supplies operating up to 150 °C junction temperature.

Technical Context

This dual-diode Schottky rectifier integrates two independent anode-cathode paths sharing a common cathode terminal (center-tap configuration), enabling synchronous rectification in full-bridge or center-tapped transformer topologies. Its low dV/dt rating (10,000 V/µs) supports fast-switching operation without parasitic turn-on.

The device features specified avalanche capability (7800 W peak, 80 V VARM), validated per AN1768/AN2025, and thermal design support via junction-to-case resistance (4.7 °C/W per diode in TO-220FPAB) and coupling resistance (3.2 °C/W), allowing accurate thermal modeling under pulsed or continuous conduction modes.

Key Specifications

Pinout & Package

Package: TO-220FPAB - insulated plastic housing with metal tab for heatsinking, UL94 V0 epoxy, recommended torque 0.4–0.6 N·m, footprint per Figure 13 (Doc ID 6479 Rev 10, p.9).

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, STPS30L60CFP uniquely combines TO-220FPAB insulation, 0.56 V VF at 125 °C, and 80 V avalanche voltage - making it optimal for space-constrained, high-reliability industrial and telecom power supplies requiring self-protected rectification without external isolation.

Availability

STPS30L60CFP is available at Aetrix Electronics and suitable for server VRMs, industrial DC–DC converters, and telecom rectifier modules requiring stable component supply, long-term lifecycle support, and traceable sourcing for production ramp-up.

Supply support for STPS30L60CFP 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 industrial, automotive, and consumer markets.

STPS30L60CFP belongs to ST's Power Schottky Rectifier product line, engineered specifically for high-frequency, high-efficiency secondary-side rectification in switched-mode power supplies where low VF, rugged avalanche behavior, and thermal reliability are mandatory.

FAQ

What is the maximum junction temperature and how does it affect thermal design?

The absolute maximum junction temperature is 150 °C. At Tc = 110 °C, the device delivers 15 A per diode continuously. Thermal design must ensure that power dissipation (calculated as P = 0.42 × IF(AV) + 0.009 × IF²(RMS)) multiplied by Rth(j-c) = 4.7 °C/W plus ambient temperature stays below 150 °C. Derating curves in Figure 3 confirm usable current drops to ~12 A at 70 °C ambient with natural convection.

Is STPS30L60CFP suitable for synchronous rectification replacement in existing designs?

Yes - its dual-center-tap configuration (A1/A2/K) matches standard synchronous rectifier controller outputs, and its 0.56 V VF at 125 °C provides lower conduction loss than most discrete MOSFET-based solutions above 10 A. However, unlike active FETs, it lacks gate control, so it functions only as a passive rectifier - ideal where simplicity and ruggedness outweigh dynamic control needs.

Does the TO-220FPAB package provide electrical isolation between tab and die?

Yes - TO-220FPAB features an insulated plastic body with electrically isolated metal tab. The tab is not internally connected to any semiconductor terminal, enabling direct mounting to grounded heatsinks without additional insulating hardware. This differs from TO-220AB, where the tab is electrically tied to the cathode (K).

How is avalanche capability validated and what real-world stress does it protect against?

Avalanche capability is validated per ST application notes AN1768 and AN2025 using controlled 1 µs pulses up to 80 V VARM and 29 A IAR. It protects against transformer leakage inductance spikes, MOSFET turn-off overshoot, and line transients in offline SMPS and isolated DC–DC converters - eliminating need for TVS diodes or RCD snubbers in many designs.