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

Taiwan Semiconductor Corporation S1GLH

Name: S1GLH
Brand: Taiwan Semiconductor Corporation
SKU: S1GLH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S1GLH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-219AB

Datasheet:: S1GLH.pdf

Description:: DIODE GEN PURP 400V 1A SUB SMA

Quantity:: RFQ Add To RFQ list

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Product details

Overview

S1GLH from Taiwan Semiconductor is a 1A, 400V repetitive peak reverse voltage (V_RRM) standard surface-mount silicon rectifier diode in Sub SMA package, featuring glass-passivated junction, 1.1V max forward voltage at 1A, and AEC-Q101 qualification for automotive-grade reliability-used in DC-DC converter output stages and snubber networks.

For engineers reviewing the S1GLH datasheet, S1GLH pinout, S1GLH application, or S1GLH equivalent, key selection criteria include its 400V V_RRM, 30A I_FSM surge rating, 175°C maximum junction temperature, J-STD-020 Level 1 moisture sensitivity, and Sub SMA thermal performance (R_θJL = 25°C/W).

Technical Context

The S1GLH is a single-die, unidirectional standard recovery rectifier with a 1800ns reverse recovery time (trr) under IF = 0.5A / IR = 1.0A conditions, optimized for general-purpose and moderate-switching applications-not intended for high-frequency SMPS primary-side rectification. Its glass-passivated junction ensures stable leakage behavior across temperature.

Thermal design leverages low-profile Sub SMA packaging with matte tin-plated leads compliant to J-STD-002 solderability and JESD201 Class 2 whisker resistance. Polarity is marked by cathode band; device weight is 0.019g.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	400 V - Maximum non-repetitive reverse voltage the diode blocks without breakdown; defines use in 28V–48V DC-DC secondary or 300VAC line-derived circuits.
I_F	1 A continuous - Rated average forward current at TA = 75°C; derates linearly above 75°C per forward current derating curve.
V_F max	1.1 V @ 1A, 25°C - Directly impacts conduction loss (1.1W dissipation at 1A), critical for thermal budget in compact layouts.
I_FSM	30 A @ 8.3ms half-sine - Supports transient overload handling in automotive load-dump or inductive kick scenarios.
T_J max	+175°C - Enables operation in under-hood environments and high-ambient industrial settings without derating penalty.
R_θJL	25 °C/W - Junction-to-lead thermal resistance for S1ALH–S1JLH group; enables direct PCB copper pour heatsinking via cathode pad.
C_J	9 pF @ 1MHz, 4V - Limits high-frequency displacement current in snubber or EMI filter applications.

Pinout & Package

Package: Sub SMA - Low-profile surface-mount package with cathode-indicating band; molded compound meets UL 94V-0; matte tin-plated leads; polarity marked on body.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of circuit; requires adequate trace width to sustain 1A continuous and 30A surge.
Cathode	Forward current exit / reverse voltage blocking terminal	Marked by band; serves as primary thermal path to PCB; must be routed to large copper area for R_θJL = 25°C/W performance.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive electronics per stress test requirements-enables use in lighting modules and body control units without additional qualification.
Glass-passivated junction	Eliminates need for hermetic sealing while maintaining <5µA IR at 25°C and <50µA at 125°C-improves long-term reliability in humid environments.
Sub SMA package	0.019g weight and low profile support automated pick-and-place and high-density board assembly; compatible with standard SMA reflow profiles.
J-STD-020 Level 1 MSL	No floor life limitation or baking requirement before assembly-reduces manufacturing overhead and avoids moisture-induced popcorning.
Halogen-free (IEC 61249-2-21)	Complies with RoHS and automotive material declarations-supports sustainability reporting and end-of-life recycling compliance.

Applications

DC-DC Converter Output Rectification	Automotive LED Lighting Driver
Use Scenario: Secondary-side rectification in isolated 12V/24V buck-boost converters powering infotainment displays. IC Role / Device Role / Timing Role: Unidirectional current steering and AC-to-DC conversion; operates in forward conduction mode only. Use Value: 1.1V V_F minimizes power loss at 1A load; 175°C T_J max supports operation near heat-generating SoCs.	Use Scenario: Constant-current LED string supply in headlamp or DRL modules with PWM dimming. IC Role / Device Role / Timing Role: Freewheeling path during MOSFET turn-off; clamps inductive kick from boost inductor. Use Value: 30A I_FSM safely absorbs energy from 100µH/2A inductors; 400V V_RRM accommodates 350V transients.
Snubber Network Diode	General-Purpose AC Line Protection
Use Scenario: RCD snubber across flyback transformer primary in 24V industrial power supplies. IC Role / Device Role / Timing Role: Fast recovery path for snubber capacitor discharge; conducts briefly during each switching cycle. Use Value: 1800ns trr balances switching loss vs. voltage overshoot; 9pF C_J limits capacitive coupling into gate drive loop.	Use Scenario: Bridge rectifier input stage in auxiliary 5V/12V wall adapters for smart sensors. IC Role / Device Role / Timing Role: Half-wave or full-wave rectification of 50/60Hz AC mains-derived signals. Use Value: Glass passivation ensures stable IR <5µA over 10-year field life; Sub SMA footprint simplifies replacement in legacy designs.

DC-DC Converter Output Rectification

Automotive LED Lighting Driver

Use Scenario: Secondary-side rectification in isolated 12V/24V buck-boost converters powering infotainment displays.

IC Role / Device Role / Timing Role: Unidirectional current steering and AC-to-DC conversion; operates in forward conduction mode only.

Use Value: 1.1V V_F minimizes power loss at 1A load; 175°C T_J max supports operation near heat-generating SoCs.

Use Scenario: Constant-current LED string supply in headlamp or DRL modules with PWM dimming.

IC Role / Device Role / Timing Role: Freewheeling path during MOSFET turn-off; clamps inductive kick from boost inductor.

Use Value: 30A I_FSM safely absorbs energy from 100µH/2A inductors; 400V V_RRM accommodates 350V transients.

Snubber Network Diode

General-Purpose AC Line Protection

Use Scenario: RCD snubber across flyback transformer primary in 24V industrial power supplies.

IC Role / Device Role / Timing Role: Fast recovery path for snubber capacitor discharge; conducts briefly during each switching cycle.

Use Value: 1800ns trr balances switching loss vs. voltage overshoot; 9pF C_J limits capacitive coupling into gate drive loop.

Use Scenario: Bridge rectifier input stage in auxiliary 5V/12V wall adapters for smart sensors.

IC Role / Device Role / Timing Role: Half-wave or full-wave rectification of 50/60Hz AC mains-derived signals.

Use Value: Glass passivation ensures stable IR <5µA over 10-year field life; Sub SMA footprint simplifies replacement in legacy designs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1L06U	1A, 600V V_RRM, 1.7V V_F max, 150ns trr, TO-277 package	Higher V_RRM, faster recovery, higher V_F, larger footprint	Select when >400V blocking or <200ns trr required; not drop-in due to different package and pinout.
ON Semi MUR105	1A, 50V V_RRM, 1.0V V_F max, 75ns trr, DO-41 through-hole	Lower voltage rating, faster recovery, through-hole mounting	Choose for cost-sensitive prototyping or legacy through-hole boards; incompatible with S1GLH's surface-mount layout.

Compared with STTH1L06U and MUR105, the S1GLH offers optimal balance of 400V capability, AEC-Q101 qualification, and Sub SMA manufacturability-making it preferred for automotive and space-constrained industrial DC-DC outputs where 1800ns trr is acceptable.

Availability

S1GLH is available at Aetrix Electronics and suitable for DC-DC converter output rectification, automotive LED lighting drivers, and snubber network implementations requiring stable component supply, automotive-grade qualification, and surface-mount assembly compatibility.

Supply support for S1GLH 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, serving automotive, industrial, and consumer markets since 1979.

The S1GLH belongs to TSC's S1xLH standard rectifier family-designed specifically for AEC-Q101-compliant, cost-effective, and thermally efficient surface-mount rectification in automotive lighting, power conversion, and protection circuits.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for the S1GLH?

The S1GLH has a V_RRM of 400 V, as confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version B2108). This rating defines the highest reverse voltage the diode can block repeatedly without breakdown and is validated across temperature and lifetime testing per AEC-Q101 requirements. The S1GLH is part of the S1ALH–S1MLH series where 'G' denotes the 400V grade.

Is the S1GLH suitable for automotive applications?

Yes, the S1GLH is AEC-Q101 qualified and explicitly listed for automotive applications in its official documentation. It meets stress test requirements including temperature cycling, high-temperature operating life, and mechanical shock-making it appropriate for under-hood lighting modules, body control units, and DC-DC converters in vehicles. The S1GLH's 175°C T_J max and glass-passivated junction further support automotive reliability needs.

What is the forward voltage (V_F) specification for the S1GLH at rated current?

The S1GLH has a maximum forward voltage of 1.1 V at 1 A forward current and 25°C junction temperature, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating effects. At higher temperatures or continuous DC, V_F decreases slightly due to negative temperature coefficient-verified in the Typical Forward Characteristics curve (Figure 4) of the S1GLH datasheet.

Does the S1GLH have a defined reverse recovery time (t_rr)?

Yes, the S1GLH has a typical reverse recovery time (t_rr) of 1800 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions. This value is specified in the Electrical Specifications section and reflects its classification as a standard (not fast or ultrafast) recovery rectifier. The t_rr is consistent across the S1ALH–S1JLH subgroup and impacts switching loss in snubber and moderate-frequency rectifier applications.

What package type does the S1GLH use, and is it RoHS compliant?

The S1GLH uses the Sub SMA surface-mount package, with matte tin-plated leads compliant to J-STD-002 solderability and JESD201 Class 2 whisker resistance. It is RoHS compliant and halogen-free per IEC 61249-2-21, as stated in the Features section of the official datasheet. The Sub SMA outline and suggested pad layout are documented in Version B2108, page 4.

S1GLH Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-219AB

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Technology:: Standard

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

Current - Average Rectified (Io):: 1A

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 1 A

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

Reverse Recovery Time (trr):: 1.8 µs

Current - Reverse Leakage @ Vr:: 5 µA @ 400 V

Capacitance @ Vr, F:: 9pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: Sub SMA

Operating Temperature - Junction:: -55°C ~ 175°C

S1GLH FAQ

1.How can I place an order for S1GLH through Aetrix?

Please submit a Request for Quotation (RFQ) for S1GLH 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 S1GLH reliable?

The price and inventory of S1GLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1GLH is usually 5 days.

3.What payment methods are accepted for S1GLH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1GLH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S1GLH?

S1GLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S1GLH 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 S1GLH?

For technical support, including S1GLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1GLH requirements.

6.How does Aetrix verify that S1GLH is sourced from the original manufacturer or authorized distributors?

All S1GLH 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 S1GLH meets industry standards.

7.What is the process for return or replacement of S1GLH?

All S1GLH units undergo pre-shipment inspection (PSI). If there is an issue with S1GLH, 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 S1GLH part is unused and in its original packaging.

Return procedure for S1GLH:

1.Submit a request within 90 days.

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

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