Diodes Incorporated 1N5398-T

Overview

1N5398-T from Diodes Incorporated is a 1.5A, 800V peak repetitive reverse voltage general-purpose silicon rectifier diode in DO-15 package, with 1.1V forward voltage drop at 1.5A, 50A non-repetitive surge rating, and 5.0μA reverse leakage at 25°C. It is used in AC/DC power supplies, input rectification stages, and offline switch-mode power supply front-ends.

For engineers reviewing the 1N5398-T datasheet, 1N5398-T pinout, 1N5398-T application, or 1N5398-T equivalent, key selection criteria include V_RRM = 800V, I_O = 1.5A @ T_A = 70°C, V_F = 1.1V @ 1.5A, I_FSM = 50A, and DO-15 mechanical compatibility for through-hole PCB layouts.

Technical Context

This device operates as a single-phase, half-wave rectifier under 60Hz resistive or inductive loads. Its thermal resistance junction-to-ambient is 55°C/W (with leads held at ambient at 9.5mm from case), and junction-to-lead is 25°C/W, enabling reliable operation up to +150°C junction temperature.

Capacitance is 20pF typical at 1MHz and 4V reverse bias; reverse leakage rises to 50μA at 100°C. Derating curves confirm usable average forward current down to ~0.9A at 125°C ambient, supporting industrial-grade power conversion designs.

Key Specifications

Pinout & Package

DO-15 molded plastic package (UL 94V-0), axial leaded, cathode band marked. Dimensions: A = 25.40 mm max, B = 5.50–7.62 mm, C = 0.686–0.889 mm, D = 2.60–3.60 mm. Weight ≈ 0.40 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 1N4007-T and UF5408-T, the 1N5398-T uniquely balances 800V blocking, 1.5A continuous rating, and DO-15 footprint-making it optimal for cost-sensitive, thermally constrained 20–30W offline supplies where fast recovery is unnecessary.

Availability

1N5398-T is available at Aetrix Electronics and suitable for AC/DC adapter input rectification, industrial power supply front-ends, and UPS battery charging circuits requiring stable component supply and legacy DO-15 footprint compatibility.

Supply support for 1N5398-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, headquartered in Plano, Texas, with design and manufacturing operations across Asia and the Americas.

The 1N539x series belongs to Diodes' general-purpose rectifier product line, engineered for cost-effective, robust AC/DC conversion in consumer, industrial, and computing power supplies.

FAQ

Is the 1N5398-T RoHS compliant?

Yes. The 1N5398-T features a lead-free finish and complies with RoHS Directive 2002/95/EC (as revised 13.2.2003), including exemptions for glass and high-temperature solder per EU Annex Notes 5 and 7.

What is the maximum operating temperature for the 1N5398-T?

The 1N5398-T has an operating and storage temperature range of –65°C to +150°C. Its junction temperature must not exceed +150°C under steady-state conditions, with derating applied above 70°C ambient per Figure 1.

Can the 1N5398-T replace the 1N4007 in existing designs?

Only if the design requires ≥1.5A average current and fits the DO-15 footprint. The 1N5398-T offers higher current than the 1N4007 (1.0A), but lower V_RRM (800V vs. 1000V); verify voltage stress margins before substitution.

Does the 1N5398-T have a specified reverse recovery time?

No. The datasheet does not specify t_rr; the device is characterized as a general-purpose rectifier-not an ultrafast or soft-recovery type-making it suitable for 50/60Hz line-frequency applications only.