Diodes Incorporated STPF1020CTSW

Overview

STPF1020CTSW from Diodes Incorporated is a superfast glass passivated dual common-cathode rectifier diode rated for 200 V reverse voltage and 10 A average forward current at T_C = 110°C, with 30 ns reverse recovery time and 0.76 V typical forward voltage at 10 A/25°C, used in high-frequency DC-DC converters and switched-mode power supplies.

For engineers reviewing the STPF1020CTSW datasheet, STPF1020CTSW pinout, STPF1020CTSW application, or STPF1020CTSW equivalent, key selection criteria include reverse recovery time (≤30 ns), thermal resistance (R_thJC = 5°C/W), junction capacitance (45 pF), AEC-Q101 qualification, and TO-220ABFP package compatibility with heatsink mounting.

Technical Context

This dual common-cathode rectifier integrates two independent superfast switching diodes sharing a single cathode terminal (Pin 2), enabling synchronous or interleaved rectification topologies. Its 30 ns t_rr and low Q_rr minimize switching losses in high-frequency (>100 kHz) power conversion stages.

The device operates across –55°C to +150°C junction temperature range, with 80 A non-repetitive surge rating and <0.47 µA leakage at 200 V/25°C, supporting robust performance in automotive-grade power supplies where thermal cycling and transient immunity are critical.

Key Specifications

Pinout & Package

Package: ITO-220(S)AB (JEDEC TO-220ABFP variant), green molding compound, RoHS-compliant lead finish, 1.558 g weight, marked "STPF1020CTSW".

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar superfast dual common-cathode rectifier applications.

Compared with STTH10L06CW and DF10S06, STPF1020CTSW uniquely balances 200 V rating, 30 ns speed, and dual common-cathode integration-making it optimal for compact, high-efficiency 200 V-class DC-DC converters where layout area and thermal resistance are constrained.

Availability

STPF1020CTSW is available at Aetrix Electronics and suitable for switched-mode power supplies, high-frequency DC-DC converters, and automotive power modules requiring stable component supply and AEC-Q101 compliance.

Supply support for STPF1020CTSW 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, headquartered in Plano, Texas, serving industrial, computing, communications, and automotive markets with high-reliability components.

STPF1020CTSW belongs to Diodes' Superfast Rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in automotive and industrial applications where low t_rr, low V_F, and AEC-Q101 qualification are mandatory.

FAQ

What is the maximum case temperature for continuous 10 A operation?

The STPF1020CTSW delivers its rated 10 A average forward current only when the case temperature (T_C) is maintained at ≤110°C, as defined in the derating curve (Figure 1). Exceeding this temperature requires linear current reduction; at 125°C case, maximum I_(AV) drops to approximately 7.5 A.

Is STPF1020CTSW pin-compatible with standard TO-220AB devices?

Yes - STPF1020CTSW uses the ITO-220(S)AB package, a JEDEC TO-220ABFP variant with identical footprint, hole spacing, and mounting dimensions as standard TO-220AB. Pin 1 (Anode 1), Pin 2 (Common Cathode), and Pin 3 (Anode 2) follow industry-standard dual-diode orientation.

Does the device require a heatsink for 10 A operation?

Yes - full 10 A average current rating assumes mounting on a 100 mm × 100 mm × 1.9 mm copper heatsink, per thermal test condition Note 7. Without such heatsinking, junction temperature will exceed 150°C even at moderate loads; R_thJC = 5°C/W mandates active thermal management.

How does AEC-Q101 qualification impact design validation?

AEC-Q101 qualification confirms STPF1020CTSW has passed accelerated stress tests including HTOL (1000 hrs @ 150°C), temperature cycling (–55°C to +150°C, 1000 cycles), and unbiased HAST. This eliminates need for requalification in automotive power modules, reducing time-to-market and validation cost.