Diodes Incorporated 1N5392S-T

Overview

1N5392S-T from Diodes Incorporated is a 100 V PIV, 1.5 A average forward current general-purpose silicon rectifier diode in DO-41 package with fast switching capability, 1.1 V forward voltage drop at 1.5 A, and 5 µA reverse leakage at 25°C, used in AC/DC power supplies and DC-DC converter input stages.

For engineers reviewing the 1N5392S-T datasheet, 1N5392S-T pinout, 1N5392S-T application, or 1N5392S-T equivalent, key selection criteria include peak repetitive reverse voltage (100 V), thermal resistance junction-to-lead (25 °C/W), surge rating (50 A), low forward voltage for efficiency, and DO-41 mechanical compatibility in space-constrained designs.

Technical Context

This device operates as a single-phase, half-wave rectifier under 60 Hz resistive or inductive loads, with derating required for capacitive loads (−20% current). It exhibits typical total capacitance of 20 pF at 1 MHz and 4 V reverse bias, supporting moderate-frequency switching applications up to ~100 kHz.

Thermal performance is defined by R_θJL = 25 °C/W (junction-to-lead) and R_θJA = 55 °C/W (junction-to-ambient, leads at ambient, 9.5 mm from case), enabling reliable operation from −65°C to +150°C with appropriate PCB copper area and airflow.

Key Specifications

Pinout & Package

DO-41 molded plastic package (UL 94V-0), axial-leaded, cathode band marked. Dimensions: A = 25.40 mm max length, B = 4.06–5.21 mm body diameter, C = 0.71–0.864 mm lead diameter, D = 2.00–2.72 mm lead spacing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 1N4002-T, the 1N5392S-T delivers 50% higher current capacity and superior surge tolerance in the same footprint; versus 1N5392-T, it offers identical performance in a smaller DO-41 outline, easing high-density layout while maintaining thermal path integrity via shorter leads.

Availability

1N5392S-T is available at Aetrix Electronics and suitable for AC/DC power supplies, industrial sensor interfaces, and LED driver bulk rectification requiring stable component supply and long-term manufacturability support.

Supply support for 1N5392S-T 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 1N539x/S series belongs to Diodes' general-purpose rectifier product line, engineered for cost-effective, thermally robust AC/DC conversion in space- and efficiency-constrained applications where DO-41 packaging and fast recovery are essential.

FAQ

What is the maximum allowable ambient temperature for continuous 1.5 A operation?

The 1N5392S-T supports 1.5 A average forward current only when leads are maintained at 70°C ambient temperature at 9.5 mm from the case. At higher ambient temperatures, current must be derated per Figure 1 - e.g., 1.0 A at 100°C ambient. Thermal design must account for R_θJA = 55 °C/W and PCB copper area.

Is the 1N5392S-T suitable for use in high-frequency switching power supplies?

Yes - its fast switching behavior and 20 pF junction capacitance enable use in offline SMPS front-ends up to 100 kHz. However, it is not optimized for >200 kHz operation like Schottky or ultrafast diodes; for such cases, consider the B1100 or SB1100 series.

Does the "S" suffix indicate RoHS compliance?

Yes - the "S" suffix denotes DO-41 packaging and confirms RoHS compliance per EU Directive Annex Notes 5 and 7, including exemptions for glass and high-temperature solder. The device uses lead-free tin-plated leads and meets MIL-STD-202 solderability requirements.

Can the 1N5392S-T replace a 1N4002 in an existing design?

Yes - it is a direct physical and electrical upgrade: same DO-41 footprint, higher 1.5 A current rating (vs. 1 A), identical 100 V PIV, and equal 1.1 V forward drop. No layout change is needed, and system reliability improves due to enhanced surge tolerance (50 A vs. 30 A).