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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

Taiwan Semiconductor Corporation SGLWH

Name: SGLWH
Brand: Taiwan Semiconductor Corporation
SKU: SGLWH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SGLWH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-123W

Datasheet:: SGLWH.pdf

Description:: 0.8A, 400V, STANDARD RECOVERY RE

Quantity:: RFQ Add To RFQ list

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Inventory:20,000

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Product details

Overview

SGLWH from Taiwan Semiconductor is a 400 V, 0.8 A standard surface-mount silicon rectifier diode in SOD-123W package, glass passivated for reliability, AEC-Q101 qualified, and used in automotive lighting and DC-DC snubber circuits.

For engineers reviewing the SGLWH datasheet, SGLWH pinout, SGLWH application, or SGLWH equivalent, key selection criteria include peak reverse voltage (400 V), forward current rating (0.8 A), thermal resistance (R_θJA = 84 °C/W), junction temperature range (–55 to +150 °C), and AEC-Q101 qualification for automotive use.

Technical Context

The SGLWH is a single-die, unidirectional standard recovery rectifier with glass-passivated PN junction, optimized for low forward voltage drop and stable reverse leakage across temperature. Its SOD-123W package supports automated placement and meets J-STD-020 Level 1 moisture sensitivity.

Thermal performance is characterized with R_θJL = 30 °C/W and R_θJC = 31 °C/W on a 5 mm × 5 mm copper pad PCB, enabling reliable operation up to 150 °C junction temperature under sustained 0.8 A DC load.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Maximum repetitive reverse voltage before breakdown; defines safe operating limit in snubber and flyback clamp circuits.
I_F	0.8 A - Continuous average forward current; determines steady-state power handling in automotive LED drivers.
I_FSM	20 A - Non-repetitive surge current (8.3 ms half-sine); supports inrush tolerance during system startup.
V_F @ 0.8 A, 25°C	0.94–1.10 V - Forward voltage range; directly impacts conduction loss and thermal design in compact DC-DC converters.
R_θJA	84 °C/W - Junction-to-ambient thermal resistance on standard test board; used to calculate temperature rise under real PCB layout conditions.
T_J Range	–55 to +150 °C - Full operational junction temperature range; enables deployment in under-hood automotive environments.

Pinout & Package

Package: SOD-123W - Surface-mount plastic case with matte tin-plated leads, UL 94V-0 rated molding compound, cathode polarity indicated by band, weight ≈ 0.016 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of circuit; must be routed with adequate copper area for thermal dissipation.
Cathode	Forward current exit / reverse blocking terminal	Marked by band; ties to higher-potential node; reverse voltage applied here during off-state.

Key Features

Feature	Design Value
AEC-Q101 qualification	Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress requirements.
Glass passivated junction	Enhances long-term stability and moisture resistance versus epoxy-passivated alternatives, critical for under-hood longevity.
SOD-123W mechanical form	Enables high-density automated assembly and meets IPC-7351B footprint standards for consistent reflow yield.
Level 1 moisture sensitivity	Eliminates need for dry-packaging or baking prior to SMT reflow, reducing manufacturing overhead.

Applications

Automotive LED Lighting	DC-DC Converter Snubber
Use Scenario: Reverse polarity protection and freewheeling path in 12 V/24 V automotive LED headlamp modules. IC Role / Device Role / Timing Role: Standard rectifier providing unidirectional current flow and clamping transient energy during MOSFET switching. Use Value: AEC-Q101 qualification and 150 °C T_J rating ensure robustness in thermally constrained lamp housings.	Use Scenario: Energy-absorbing clamp across transformer primary in isolated flyback converters for infotainment power supplies. IC Role / Device Role / Timing Role: Passive snubber diode dissipating leakage inductance spikes during MOSFET turn-off. Use Value: 400 V V_RRM and 20 A I_FSM support reliable suppression of >300 V transients without avalanche degradation.
Industrial Sensor Power Supply	General-Purpose AC/DC Front-End
Use Scenario: Input rectification stage in compact 5 V/100 mA isolated sensor interface power supplies mounted on PCBs with limited airflow. IC Role / Device Role / Timing Role: Single-phase bridge half-leg rectifier converting transformer secondary AC to DC bus. Use Value: Low R_θJA (84 °C/W) and 0.8 A rating allow full-load operation without heatsink at ambient ≤ 70 °C.	Use Scenario: Low-cost, space-constrained AC adapter front-end for consumer electronics requiring <1 W standby power. IC Role / Device Role / Timing Role: General-purpose rectifier in voltage doubler or half-wave configuration for low-current auxiliary rails. Use Value: Halogen-free and RoHS-compliant construction meets global environmental compliance mandates without performance trade-offs.

Automotive LED Lighting

DC-DC Converter Snubber

Use Scenario: Reverse polarity protection and freewheeling path in 12 V/24 V automotive LED headlamp modules.

IC Role / Device Role / Timing Role: Standard rectifier providing unidirectional current flow and clamping transient energy during MOSFET switching.

Use Value: AEC-Q101 qualification and 150 °C T_J rating ensure robustness in thermally constrained lamp housings.

Use Scenario: Energy-absorbing clamp across transformer primary in isolated flyback converters for infotainment power supplies.

IC Role / Device Role / Timing Role: Passive snubber diode dissipating leakage inductance spikes during MOSFET turn-off.

Use Value: 400 V V_RRM and 20 A I_FSM support reliable suppression of >300 V transients without avalanche degradation.

Industrial Sensor Power Supply

General-Purpose AC/DC Front-End

Use Scenario: Input rectification stage in compact 5 V/100 mA isolated sensor interface power supplies mounted on PCBs with limited airflow.

IC Role / Device Role / Timing Role: Single-phase bridge half-leg rectifier converting transformer secondary AC to DC bus.

Use Value: Low R_θJA (84 °C/W) and 0.8 A rating allow full-load operation without heatsink at ambient ≤ 70 °C.

Use Scenario: Low-cost, space-constrained AC adapter front-end for consumer electronics requiring <1 W standby power.

IC Role / Device Role / Timing Role: General-purpose rectifier in voltage doubler or half-wave configuration for low-current auxiliary rails.

Use Value: Halogen-free and RoHS-compliant construction meets global environmental compliance mandates without performance trade-offs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH08L04W	400 V, 0.8 A, TO-277A package; VF ≈ 0.95 V @ 0.8 A, but R_θJA ≈ 110 °C/W (higher thermal resistance)	Requires larger PCB pad or heatsinking for same power level; not AEC-Q101 qualified	Prefer SGLWH where automotive qualification or tighter thermal budget is required.
ES1D	200 V, 1 A, SMA package; VF ≈ 0.92 V @ 0.8 A, but V_RRM insufficient for 400 V snubber use	Limited to ≤200 V circuits; unsuitable for flyback clamp or 24 V automotive systems with load dump	Select SGLWH when 400 V blocking and AEC-Q101 compliance are mandatory.

Compared with STTH08L04W and ES1D, the SGLWH delivers superior thermal performance in a smaller footprint, AEC-Q101 validation for automotive deployment, and precise 400 V V_RRM alignment-making it optimal for space- and reliability-critical snubber and lighting rectification roles.

Availability

SGLWH is available at Aetrix Electronics and suitable for automotive LED lighting, DC-DC converter snubbers, and industrial sensor power supplies requiring stable component supply and long-term production continuity.

Supply support for SGLWH 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power devices, rectifiers, and protection components.

The SGLWH belongs to TSC's SxLWH family of AEC-Q101-qualified standard rectifiers, engineered specifically for automotive and industrial power conversion where reliability, thermal efficiency, and standardized SMD packaging are essential.

FAQ

What is the peak repetitive reverse voltage rating of the SGLWH?

The SGLWH has a peak repetitive reverse voltage (V_RRM) rating of 400 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version A2103). It defines the maximum reverse-biased voltage the device can withstand repeatedly without breakdown, making the SGLWH suitable for 24 V automotive systems with load-dump transients and 400 V-class snubber applications. Exceeding this rating risks irreversible junction failure.

Is the SGLWH qualified for automotive applications?

Yes, the SGLWH is AEC-Q101 qualified, as explicitly stated in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), ensuring reliability in automotive under-hood and interior environments. The SGLWH's –55 to +150 °C junction temperature range and SOD-123W package construction further support its use in automotive LED lighting and power modules.

What is the forward voltage of the SGLWH at 0.8 A and 25°C?

The forward voltage (V_F) of the SGLWH at 0.8 A and 25°C is specified as 0.94 V (typical) to 1.10 V (maximum) in the Electrical Specifications table. This range reflects process variation and ensures design margin for conduction loss calculation. At elevated temperatures (e.g., 125°C), V_F drops to 0.84–1.01 V, which must be considered for thermal modeling in high-ambient applications like automotive engine control units.

What package type does the SGLWH use, and what are its key mechanical attributes?

The SGLWH uses the SOD-123W surface-mount package. Key mechanical attributes include matte tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 flammability-rated molding compound, cathode polarity indicated by a visible band, and a weight of approximately 0.016 g. Its dimensions and suggested pad layout align with IPC-7351B standards, supporting high-yield automated placement and reflow.

Does the SGLWH have halogen-free and RoHS-compliant construction?

Yes, the SGLWH is both RoHS compliant and halogen-free per IEC 61249-2-21, as documented in the FEATURES section of the Taiwan Semiconductor datasheet. These environmental attributes are verified for the SOD-123W package variant and apply to all units marked "SGLWH". This compliance enables global market access, including EU and China RoHS-regulated products, without requiring material declaration waivers.

SGLWH Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: SOD-123W

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 400 V

Current - Average Rectified (Io):: 800mA

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 800 mA

Speed:: Standard Recovery >500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 1 µA @ 400 V

Capacitance @ Vr, F:: 7pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-123W

Operating Temperature - Junction:: -55°C ~ 150°C

SGLWH FAQ

1.How can I place an order for SGLWH through Aetrix?

Please submit a Request for Quotation (RFQ) for SGLWH on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SGLWH reliable?

The price and inventory of SGLWH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SGLWH is usually 5 days.

3.What payment methods are accepted for SGLWH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SGLWH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SGLWH?

SGLWH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SGLWH order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SGLWH?

For technical support, including SGLWH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SGLWH requirements.

6.How does Aetrix verify that SGLWH is sourced from the original manufacturer or authorized distributors?

All SGLWH products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SGLWH meets industry standards.

7.What is the process for return or replacement of SGLWH?

All SGLWH units undergo pre-shipment inspection (PSI). If there is an issue with SGLWH, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SGLWH part is unused and in its original packaging.

Return procedure for SGLWH:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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