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

Taiwan Semiconductor Corporation S1BLH

Name: S1BLH
Brand: Taiwan Semiconductor Corporation
SKU: S1BLH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S1BLH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-123

Datasheet:: S1BLH.pdf

Description:: 1A, 100V, STANDARD RECOVERY RECT

Quantity:: RFQ Add To RFQ list

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Inventory:5,149

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Product details

Overview

S1BLH from Taiwan Semiconductor is a 1A, 100V standard surface-mount silicon rectifier diode in Sub SMA package, featuring glass-passivated junction, AEC-Q101 qualification, 30A peak surge rating, and 1.1V max forward voltage at 1A. It serves as a primary AC/DC input rectifier in automotive power supplies and DC-DC converters where reliability under thermal stress is critical.

For engineers reviewing the S1BLH datasheet, S1BLH pinout, S1BLH application, or S1BLH equivalent, key selection criteria include repetitive peak reverse voltage (100V), junction temperature range (–55°C to +175°C), moisture sensitivity level (MSL 1), thermal resistance (R_θJL = 25°C/W), and compliance with AEC-Q101 for automotive-grade deployment.

Technical Context

The S1BLH is a single-die, unidirectional standard recovery rectifier optimized for general-purpose and automotive power conversion. Its glass-passivated junction ensures stable leakage performance up to 125°C, while the Sub SMA package enables automated placement and supports high-density PCB layouts.

With a typical reverse recovery time of 1800 ns and junction capacitance of 9 pF at 4V, the S1BLH balances switching speed and low conduction loss-suited for non-critical-frequency applications such as snubbers, auxiliary supplies, and lighting drivers where EMI constraints are moderate.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum repetitive reverse voltage the device blocks without breakdown; defines safe operating limit in bridge or half-wave rectifier configurations.
I_F	1 A - Continuous average forward current rating at T_L = 75°C; determines steady-state power handling in linear or low-frequency switching topologies.
I_FSM	30 A - Peak non-repetitive surge current (8.3 ms half-sine); supports inrush current tolerance during cold-start in automotive modules.
V_F (max)	1.1 V @ 1 A, 25°C - Forward voltage drop directly impacts conduction loss and thermal rise in compact power stages.
T_J (max)	+175°C - Maximum junction temperature enables operation in under-hood environments without derating penalties beyond ambient limits.
R_θJL	25 °C/W - Junction-to-lead thermal resistance confirms efficient heat transfer to PCB copper; critical for thermal design in sealed enclosures.

Pinout & Package

Package: Sub SMA - Low-profile, surface-mount plastic package with matte tin-plated leads, UL 94V-0 molding compound, and cathode band polarity marking. Weight: 0.019 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry terminal	Connected to AC input or transformer secondary; must be routed with adequate copper area for thermal dissipation.
Cathode	Forward current exit terminal	Marked by visible band; ties to output capacitor or ground return path; polarity error causes open-circuit failure.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive electronics per stress test requirements including HTOL, TC, and HAST-enables use in engine control, lighting, and body modules.
Glass-passivated junction	Eliminates need for hermetic sealing while maintaining <5 µA reverse leakage at 25°C and <50 µA at 125°C under rated V_R.
MSL Level 1	No floor life limitation before reflow; supports unlimited storage and standard SMT assembly without baking or dry pack.
Sub SMA footprint	Compatible with industry-standard SMA land pattern (JEDEC DO-214AC), enabling drop-in replacement in existing designs using similar-rated rectifiers.

Applications

Automotive DC-DC Converter	LED Headlamp Driver
Use Scenario: Primary rectification stage in 12V-to-5V/3.3V buck-derived auxiliary supply within headlamp ECU. IC Role / Device Role / Timing Role: Standard recovery rectifier converting transformer secondary AC to unregulated DC bus prior to synchronous buck regulation. Use Value: AEC-Q101 qualification and 175°C T_J(max) ensure uninterrupted operation during under-hood thermal cycling (–40°C to +125°C ambient).	Use Scenario: Snubber diode across MOSFET switch in constant-current LED driver for adaptive front lighting systems. IC Role / Device Role / Timing Role: Clamp diode absorbing inductive kickback energy during MOSFET turn-off to protect gate driver and reduce EMI. Use Value: 30A I_FSM withstands transient surges from inductive load discharge; low C_J (9 pF) minimizes capacitive coupling into gate node.
Car Interior Lighting Supply	Industrial Sensor Power Module
Use Scenario: Output rectifier in isolated flyback converter powering CAN/LIN interface ICs and RGB LED controllers in door modules. IC Role / Device Role / Timing Role: Secondary-side freewheeling rectifier delivering regulated 5V/3.3V to mixed-signal loads. Use Value: MSL Level 1 and halogen-free construction meet automotive manufacturing and environmental compliance (RoHS, IEC 61249-2-21).	Use Scenario: Input rectifier in DIN-rail mounted 24V AC-to-DC power module for factory automation sensors. IC Role / Device Role / Timing Role: General-purpose bridge leg component in compact, convection-cooled power supply. Use Value: Sub SMA package allows high-density layout on thermally constrained PCBs; R_θJL = 25°C/W enables direct thermal coupling to internal copper planes.

Automotive DC-DC Converter

LED Headlamp Driver

Use Scenario: Primary rectification stage in 12V-to-5V/3.3V buck-derived auxiliary supply within headlamp ECU.

IC Role / Device Role / Timing Role: Standard recovery rectifier converting transformer secondary AC to unregulated DC bus prior to synchronous buck regulation.

Use Value: AEC-Q101 qualification and 175°C T_J(max) ensure uninterrupted operation during under-hood thermal cycling (–40°C to +125°C ambient).

Use Scenario: Snubber diode across MOSFET switch in constant-current LED driver for adaptive front lighting systems.

IC Role / Device Role / Timing Role: Clamp diode absorbing inductive kickback energy during MOSFET turn-off to protect gate driver and reduce EMI.

Use Value: 30A I_FSM withstands transient surges from inductive load discharge; low C_J (9 pF) minimizes capacitive coupling into gate node.

Car Interior Lighting Supply

Industrial Sensor Power Module

Use Scenario: Output rectifier in isolated flyback converter powering CAN/LIN interface ICs and RGB LED controllers in door modules.

IC Role / Device Role / Timing Role: Secondary-side freewheeling rectifier delivering regulated 5V/3.3V to mixed-signal loads.

Use Value: MSL Level 1 and halogen-free construction meet automotive manufacturing and environmental compliance (RoHS, IEC 61249-2-21).

Use Scenario: Input rectifier in DIN-rail mounted 24V AC-to-DC power module for factory automation sensors.

IC Role / Device Role / Timing Role: General-purpose bridge leg component in compact, convection-cooled power supply.

Use Value: Sub SMA package allows high-density layout on thermally constrained PCBs; R_θJL = 25°C/W enables direct thermal coupling to internal copper planes.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STPS1H100S	1A, 100V Schottky; VF ≈ 0.75V @ 1A; no reverse recovery (trr = N/A); TJ max = 150°C	Better efficiency in low-voltage, high-frequency SMPS; unsuitable for >125°C ambient due to lower T_J(max)	Select when minimizing conduction loss is prioritized over high-temp operation or cost-sensitive automotive qualification.
ON Semi MUR110E	1A, 100V ultrafast recovery; trr = 75 ns; VF = 1.25V @ 1A; AEC-Q101 not claimed	Enables higher switching frequencies in PFC or resonant converters; lacks automotive qualification documentation	Choose for industrial SMPS requiring faster recovery, provided AEC-Q101 is not mandated and thermal margin permits higher V_F.

Compared with STPS1H100S and MUR110E, the S1BLH trades higher V_F and slower trr for guaranteed AEC-Q101 compliance, extended junction temperature capability (+175°C), and MSL Level 1 handling-making it the preferred choice for thermally demanding, safety-conscious automotive subsystems where qualification traceability is required.

Availability

S1BLH is available at Aetrix Electronics and suitable for automotive lighting, DC-DC converter design, and industrial sensor power modules requiring stable component supply across multi-year production cycles.

Supply support for S1BLH 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 S1BLH belongs to TSC's AEC-Q101-qualified S1xLH standard rectifier family, engineered specifically for robust, cost-effective AC/DC and DC/DC power conversion in harsh-environment automotive electronics.

FAQ

What is the maximum junction temperature rating for the S1BLH?

The S1BLH has a maximum junction temperature (T_J(max)) of +175°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet revision B2108. This rating allows reliable operation in under-hood automotive environments and high-ambient industrial settings without additional derating beyond standard thermal design practices. The S1BLH maintains specified electrical parameters up to this limit when proper PCB thermal management is implemented.

Is the S1BLH pin-compatible with other devices in the S1xLH series?

Yes-the S1BLH shares identical Sub SMA package dimensions, lead configuration, and polarity marking (cathode band) with all members of the S1xLH family (e.g., S1ALH, S1DLH, S1MLH). Pinout is strictly anode–cathode dual-terminal; no functional or mechanical differences exist between variants aside from V_RRM and associated electrical parameters. The S1BLH can be substituted within the same footprint when voltage rating aligns with circuit requirements.

Does the S1BLH meet automotive qualification standards?

Yes-the S1BLH is explicitly qualified to AEC-Q101 Rev D for stress testing including high-temperature operating life, temperature cycling, and humidity bias HAST. This qualification is documented in the official Taiwan Semiconductor product brief and supported by test reports referenced in version B2108 of the datasheet. The S1BLH is approved for use in automotive powertrain, body, and lighting control modules.

What is the reverse recovery time (trr) specification for the S1BLH?

The S1BLH has a typical reverse recovery time (t_rr) of 1800 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A, per the electrical specifications table in the Taiwan Semiconductor datasheet. As a standard recovery rectifier, the S1BLH is intended for line-frequency and low-switching-frequency applications-not high-frequency SMPS where ultrafast or Schottky alternatives would be preferred.

What packaging and moisture sensitivity level does the S1BLH have?

The S1BLH is supplied in tape-and-reel packaging (10,000 units per reel) and carries Moisture Sensitivity Level (MSL) 1 per J-STD-020, meaning it has unlimited floor life and requires no baking prior to surface-mount reflow. This is confirmed in the "Features" section and "Mechanical Data" of the official Taiwan Semiconductor documentation for the S1BLH.

S1BLH Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: SOD-123

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 100 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 @ 100 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

S1BLH FAQ

1.How can I place an order for S1BLH through Aetrix?

Please submit a Request for Quotation (RFQ) for S1BLH 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 S1BLH reliable?

The price and inventory of S1BLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1BLH is usually 5 days.

3.What payment methods are accepted for S1BLH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1BLH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S1BLH?

S1BLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S1BLH 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 S1BLH?

For technical support, including S1BLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1BLH requirements.

6.How does Aetrix verify that S1BLH is sourced from the original manufacturer or authorized distributors?

All S1BLH 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 S1BLH meets industry standards.

7.What is the process for return or replacement of S1BLH?

All S1BLH units undergo pre-shipment inspection (PSI). If there is an issue with S1BLH, 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 S1BLH part is unused and in its original packaging.

Return procedure for S1BLH:

1.Submit a request within 90 days.

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

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