Taiwan Semiconductor Corporation TSDGLW RVG

Overview

TSDGLW from Taiwan Semiconductor is a 1 A, 400 V repetitive peak reverse voltage glass-passivated SOD-123W surface-mount rectifier with ≥8 kV HBM ESD immunity, 40 A surge rating, and 175 °C max junction temperature-designed for DC-DC converter primary-side rectification under high-reliability industrial power supplies.

For engineers reviewing the TSDGLW datasheet, TSDGLW pinout, TSDGLW application, or TSDGLW equivalent, key selection criteria include its 0.90 V forward voltage at 1 A/25 °C, 25 °C/W junction-to-lead thermal resistance, J-STD-020 Level 1 moisture sensitivity, and RoHS/halogen-free compliance for automated assembly in space-constrained power stages.

Technical Context

The TSDGLW integrates a single-die silicon PN junction with glass passivation to sustain 400 V reverse blocking while maintaining low conduction loss across -55 °C to +175 °C operating range. Its SOD-123W package features matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.

ESD robustness meets AEC-Q101-001 H3B (≥8 kV HBM), IEC 61000-4-2 Level 4 (≥15 kV air discharge), and ISO 10605 L4 (≥25 kV air discharge), enabling use in unshielded industrial environments without external protection circuitry.

Key Specifications

Pinout & Package

SOD-123W surface-mount package: 2.7 mm × 1.6 mm × 1.1 mm body, cathode band marking, matte tin-plated gull-wing leads, UL 94V-0 molding compound, 0.019 g weight.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STPS1H40S and ES1J, the TSDGLW uniquely balances 400 V blocking, 0.90 V forward drop, 175 °C operation, and certified 25 kV ESD immunity-making it optimal for thermally constrained, unshielded industrial power stages where reliability trumps marginal efficiency gain.

Availability

TSDGLW is available at Aetrix Electronics and suitable for DC-DC converters, AC-DC adapters, and LED lighting applications requiring stable component supply, long-term lifecycle support, and full compliance documentation including RoHS, REACH, and halogen-free declarations.

Supply support for TSDGLW 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated Taiwanese semiconductor manufacturer specializing in discrete power devices, ESD protection, and analog ICs since 1979.

The TSDGLW belongs to TSC's high-reliability rectifier product line, engineered specifically for industrial-grade power conversion where ESD resilience, thermal stability, and automated assembly compatibility are non-negotiable.

FAQ

What is the maximum junction temperature rating for the TSDGLW?

The TSDGLW has a maximum junction temperature (T_JMAX) of +175 °C, verified per absolute maximum ratings table. This allows reliable operation in high-ambient environments such as enclosed LED drivers or industrial motor controllers. The TSDGLW maintains parametric stability up to this limit, with reverse leakage remaining below 50 µA at 125 °C junction temperature. Thermal design must ensure R_θJA ≤ 84 °C/W under actual PCB layout conditions to avoid exceeding T_JMAX.

Does the TSDGLW meet automotive qualification standards?

The TSDGLW is qualified to AEC-Q101-001 for human-body-model ESD (H3B class, ≥8 kV), but it is not fully AEC-Q101 qualified as a complete device-no temperature cycling, humidity bias, or mechanical shock data is published. Taiwan Semiconductor explicitly states these products are "not designed for use in medical, life-saving, or life-sustaining applications." For automotive use, the TSDGLW may serve in infotainment or body-control auxiliary power rails where full AEC-Q101 compliance is not mandated.

What is the forward voltage specification of the TSDGLW at 1 A and 125 °C?

Per electrical specifications, the TSDGLW exhibits a typical forward voltage of 0.77 V and a maximum of 1.00 V at I_F = 1.0 A and T_J = 125 °C. This represents a 0.13 V increase over its 25 °C rating (0.90 V max), confirming low thermal coefficient behavior. The measurement uses pulse test conditions (PW = 0.3 ms) to avoid self-heating artifacts, ensuring accuracy for real-world switching applications.

Is the TSDGLW compatible with lead-free reflow profiles?

Yes-the TSDGLW's matte tin-plated leads are solderable per J-STD-002 and rated for lead-free reflow with peak temperatures up to 260 °C. Its MSL Level 1 classification means it can be stored indefinitely at ≤30 °C/60% RH without baking prior to reflow. The SOD-123W package's UL 94V-0 molding compound remains dimensionally stable through JEDEC-standard lead-free thermal profiles, supporting high-yield automated placement.

How does the TSDGLW's ESD performance compare to standard rectifiers?

The TSDGLW delivers ≥25 kV air-discharge ESD immunity per ISO 10605 L4-over 3× higher than typical industrial rectifiers (<8 kV). This is achieved via proprietary junction passivation and terminal geometry, validated across contact and air modes. Unlike standard rectifiers requiring external TVS diodes, the TSDGLW eliminates that BOM item in lighting drivers and sensor interfaces, reducing cost and board area while improving system-level ESD robustness.