Diodes Incorporated STPR560D

Overview

STPR560D from Diodes Incorporated is a superfast glass passivated rectifier diode rated for 600 V reverse voltage and 5.0 A average forward current at TC = 100°C, with 50 ns reverse recovery time and 1.5 V forward voltage at 5.0 A and 25°C, used in high-efficiency AC/DC front-end rectification for industrial power supplies.

For engineers reviewing the STPR560D datasheet, STPR560D pinout, STPR560D application, or STPR560D equivalent, key selection criteria include reverse recovery time (50 ns), thermal resistance (4.0 °C/W), surge rating (55 A), low leakage (10 µA @ 25°C), and TO-220AC package compatibility with heatsink mounting.

Technical Context

This device is a single-die, unidirectional silicon rectifier optimized for high-frequency switching operation. Its superfast recovery (50 ns) and low QRR support reduced switching losses in PFC and SMPS boost stages, while the glass passivation ensures stable surface characteristics under thermal cycling.

The TO-220AC package provides direct metal-to-heatsink thermal path with RΘJC = 4.0 °C/W, enabling reliable 5 A continuous conduction at TC = 100°C. Reverse leakage remains below 500 µA up to 125°C junction temperature, supporting operation in thermally demanding environments.

Key Specifications

Pinout & Package

Package: TO-220AC molded plastic, single-diode configuration with anode and cathode terminals on leads; polarity marked on body; lead-free, RoHS-compliant finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH5L06 and ES5J, the STPR560D offers optimal balance of 50 ns TRR, 1.5 V VF, and TO-220AC thermal performance-making it preferred for thermally constrained, medium-power industrial rectifiers where both switching and conduction losses matter.

Availability

STPR560D is available at Aetrix Electronics and suitable for industrial switch-mode power supplies, LED driver front-end rectification, UPS input stages, and motor drive auxiliary power supplies requiring stable component supply and long-lifecycle support.

Supply support for STPR560D 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability power management, signal integrity, and protection solutions for industrial, computing, and consumer markets.

The STPR series targets high-efficiency AC/DC rectification, emphasizing superfast recovery, rugged surge capability, and thermally robust packaging for demanding power conversion applications.

FAQ

Is the STPR560D pin-compatible with standard TO-220AC rectifiers?

Yes - STPR560D uses the industry-standard TO-220AC footprint with anode (lead 1), cathode (lead 2), and electrically connected metal tab (lead 3). Mounting hole spacing, lead pitch, and outline match JEDEC TO-220AC specifications, enabling direct mechanical and thermal replacement in existing layouts.

What is the maximum recommended case temperature for continuous operation?

The datasheet specifies I(AV) = 5.0 A at TC = 100°C. Operation above this temperature requires derating per the I(AV) vs. TC curve; at TC = 115°C, maximum average current drops to ~4.2 A. Sustained operation beyond 150°C junction temperature violates absolute maximum ratings and risks permanent failure.

Does the metal tab require electrical isolation from the heatsink?

Yes - the metal tab is internally connected to the cathode, making it electrically active. Unless the cathode node is referenced to chassis ground, isolation via mica washer or silicone pad is mandatory to prevent short circuits. Creepage and clearance must comply with end-equipment safety standards (e.g., IEC 62368-1).

Can STPR560D replace slower rectifiers like 1N5408 in existing designs?

Yes, but only if the circuit operates within its 600 V and 5 A limits and benefits from faster recovery. Replacing a 1N5408 (TRR > 2 µs) with STPR560D (TRR = 50 ns) may reduce EMI and improve efficiency, but requires verifying snubber network adjustments and ensuring no voltage overshoot due to reduced stored charge.