Diodes Incorporated S1GT-04LC-F

Overview

S1GT-04LC-F from Diodes Incorporated is a surface-mount glass-passivated silicon rectifier diode rated for 400 V peak repetitive reverse voltage (V_RRM), 1.0 A average forward current (I_O), and 30 A non-repetitive surge current (I_FSM). It operates across –65 °C to +150 °C, features 1.1 V max forward voltage at 1.0 A, and is packaged in the SMB (DO-214AA) case for high-reliability power conversion in AC/DC adapters and industrial power supplies.

For engineers reviewing the S1GT-04LC-F datasheet, S1GT-04LC-F pinout, S1GT-04LC-F application, or S1GT-04LC-F equivalent, this device serves as a general-purpose, RoHS-compliant, halogen-free rectifier with validated thermal resistance (30 °C/W), reverse recovery time (1.8–3.0 µs), and low leakage (<5 µA @ 25 °C) - critical for input-stage rectification in compact, thermally constrained designs.

Technical Context

This SMB-packaged rectifier uses a glass-passivated PN junction to achieve robust surge immunity (30 A, 8.3 ms half-sine) and stable DC blocking up to 400 V. Its 10 pF typical junction capacitance and 1.8–3.0 µs reverse recovery time support operation in line-frequency and moderate-switching applications without excessive switching loss or EMI.

The device is optimized for automated SMT assembly with matte tin-plated terminals, J-STD-020 Level 1 moisture sensitivity, and UL 94V-0 molded plastic housing. Thermal performance relies on PCB copper pad heat sinking (5.0 mm², 0.013 mm thick), enabling full 1.0 A current at terminal temperature ≤100 °C per derating curve.

Key Specifications

Pinout & Package

Package: SMB (DO-214AA), molded plastic case with cathode band marking; dimensions: 3.30–3.94 mm (L) × 4.06–4.57 mm (W) × 1.96–2.21 mm (H); weight ≈ 0.093 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MUR140 and VS-1N4007-M3/54, S1GT-04LC-F delivers optimal balance of surge robustness, low forward drop, and SMT manufacturability - making it preferred for cost-sensitive, high-volume AC/DC front-ends where 3 µs recovery suffices and thermal management relies on PCB copper.

Availability

S1GT-04LC-F is available at Aetrix Electronics and suitable for AC/DC power adapters, industrial control power supplies, and LED driver input stages requiring stable component supply, consistent parametric performance, and RoHS-compliant sourcing.

Supply support for S1GT-04LC-F 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, application-optimized components for power management, signal integrity, and protection.

S1GT-04LC-F belongs to the S1x/B series of surface-mount rectifiers designed specifically for cost-effective, high-yield AC/DC conversion in consumer, industrial, and lighting applications - emphasizing surge resilience, thermal stability, and green manufacturing compliance.

FAQ

What is the maximum allowable junction temperature for S1GT-04LC-F?

The absolute maximum junction temperature is +150 °C, but continuous operation requires limiting terminal temperature to ≤100 °C per the forward current derating curve. At T_T = 100 °C, the device delivers its full 1.0 A I_O rating; above that, current must be reduced linearly to maintain safe junction temperatures.

Is S1GT-04LC-F suitable for use in a bridge rectifier configuration?

Yes - S1GT-04LC-F is a single diode rated for 400 V V_RRM and 30 A I_FSM, making it appropriate for discrete full-wave bridge implementations. Four units can form a 400 V, 1.0 A bridge; however, thermal coupling and layout symmetry must be considered to ensure balanced current sharing and thermal dissipation.

Does S1GT-04LC-F require a heatsink in standard PCB mounting?

No external heatsink is required. The device achieves its 1.0 A rating using only 5.0 mm² of 0.013 mm-thick copper pad as a thermal path, per Diodes Incorporated's test condition. Larger copper areas further improve thermal performance, but standard SMT land patterns per AP02001 are sufficient for nominal operation.

How does the "LC" suffix in S1GT-04LC-F relate to packaging or specifications?

The "LC" suffix denotes tape-and-reel packaging: "L" indicates 3,000-piece reel quantity, and "C" specifies the SMB (DO-214AA) case variant. This matches Diodes' ordering convention where S1xB-13-F = SMB package; "S1GT-04LC-F" confirms 400 V rating (G), SMB case (B), and commercial-grade tape-and-reel (LC-F).