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

Taiwan Semiconductor Corporation S3BHR7G

Name: S3BHR7G
Brand: Taiwan Semiconductor Corporation
SKU: S3BHR7G
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S3BHR7G

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: DO-214AB, SMC

Datasheet:: S3BHR7G.pdf

Description:: DIODE GEN PURP 100V 3A DO214AB

Quantity:: RFQ Add To RFQ list

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Product details

Overview

S3BHR7G from Taiwan Semiconductor is a surface-mount silicon rectifier diode with 100 V repetitive peak reverse voltage (V_RRM), 3 A average forward current (I_F), and 100 A non-repetitive surge capability (I_FSM), housed in a DO-214AB (SMC) package; it delivers low forward voltage drop (≤1.15 V at 3 A, 25°C) and is used in AC/DC front-end rectification for switching mode power supplies and LED lighting drivers.

For engineers reviewing the S3BHR7G datasheet, S3BHR7G pinout, S3BHR7G application, or S3BHR7G equivalent, key selection criteria include its 100 V V_RRM, 13 °C/W junction-to-lead thermal resistance, 1500 ns reverse recovery time, moisture sensitivity level 1 compliance, and suitability for automated SMT assembly in high-volume industrial power converters.

Technical Context

This device is a single-die, standard recovery silicon rectifier optimized for cost-sensitive, medium-voltage AC/DC conversion where fast recovery is not required. Its 1500 ns reverse recovery time (trr) and 60 pF junction capacitance reflect standard PN-junction behavior under 0.5 A forward / 1.0 A reverse test conditions.

Thermally, it features a DO-214AB (SMC) package with 13 °C/W junction-to-lead (R_θJL) and 47 °C/W junction-to-ambient (R_θJA) thermal resistance, enabling reliable operation up to 150 °C junction temperature when mounted on adequate copper area.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	100 V - Maximum repetitive reverse voltage before breakdown; defines safe operating range in bridge or single-diode rectifier configurations.
I_F	3 A - Continuous average forward current at 75 °C case temperature; determines heatsinking requirements in steady-state operation.
I_FSM	100 A - Peak non-repetitive surge current (8.3 ms half-sine); supports inrush current handling during power-up in SMPS inputs.
V_F	≤1.15 V @ 3 A, 25°C - Forward voltage drop directly impacts conduction loss and thermal design in high-current rectification stages.
trr	1500 ns - Reverse recovery time affects switching losses and EMI in higher-frequency converters; indicates standard recovery performance.
R_θJL	13 °C/W - Junction-to-lead thermal resistance enables direct thermal coupling to PCB copper; critical for estimating die temperature rise under load.
MSL	Level 1 (per J-STD-020) - No floor life limitation; can be stored indefinitely at ≤30 °C/60% RH and placed without baking prior to reflow.

Pinout & Package

Package: DO-214AB (SMC), molded plastic case with matte tin-plated leads, cathode indicated by band, weight ≈ 0.210 g.

Pin/Terminal	Circuit Role	Design Meaning
Anode (unbanded end)	Forward current entry point	Connected to AC input or transformer secondary side; must handle full I_F and I_FSM current density.
Cathode (banded end)	Forward current exit point / reverse voltage reference	Connected to output capacitor or DC bus; polarity marking ensures correct orientation in bridge or single-diode layouts.

Key Features

Feature	Design Value
Glass passivated chip junction	Enhances long-term reliability and humidity resistance in industrial environments without requiring conformal coating.
Moisture sensitivity level 1	Eliminates pre-reflow baking steps, reducing manufacturing cycle time and cost in high-volume SMT lines.
UL 94V-0 compliant molding compound	Meets flammability safety requirements for end equipment in power adapters and lighting fixtures.
RoHS and halogen-free compliance	Supports global environmental regulations and enables use in consumer electronics and EU-marketed industrial products.
High surge current capability (100 A)	Withstands repeated cold-start surges in offline SMPS without degradation, extending system lifetime under real-world stress.

Applications

AC/DC Power Adapters	LED Lighting Drivers
Use Scenario: Rectifying 50/60 Hz or quasi-resonant AC input in compact wall-wart and desktop power adapters rated 15–65 W. IC Role / Device Role / Timing Role: Primary-side unidirectional current switch converting AC line to pulsating DC; operates as part of a 4-diode bridge or single-diode output stage. Use Value: Low V_F (≤1.15 V) reduces conduction loss at 3 A, improving efficiency and easing thermal management in space-constrained enclosures.	Use Scenario: Input rectification in constant-current LED drivers for commercial downlights and streetlight modules. IC Role / Device Role / Timing Role: Front-end rectifier in isolated flyback or non-isolated buck-derived topologies; handles continuous 3 A output current with high reliability. Use Value: 150 °C maximum junction temperature and MSL Level 1 enable stable operation in thermally demanding LED housings without derating.
Industrial SMPS	DC-DC Converter Inputs
Use Scenario: Bulk rectification in 24–48 V industrial switch-mode power supplies powering PLCs, sensors, and motor controllers. IC Role / Device Role / Timing Role: High-current path component in full-wave bridge configuration; subjected to frequent load transients and ambient temperatures up to 85 °C. Use Value: 100 A I_FSM rating ensures robustness against line surges and short-circuit events common in factory-floor electrical environments.	Use Scenario: Input-stage rectification in isolated DC-DC modules converting 48 V telecom or PoE-derived rails to lower voltages. IC Role / Device Role / Timing Role: Secondary-side or auxiliary supply rectifier; provides regulated bias for control ICs and gate drivers. Use Value: DO-214AB (SMC) package offers superior thermal dissipation over SMA/SMB, supporting higher power density in compact module designs.

AC/DC Power Adapters

LED Lighting Drivers

Use Scenario: Rectifying 50/60 Hz or quasi-resonant AC input in compact wall-wart and desktop power adapters rated 15–65 W.

IC Role / Device Role / Timing Role: Primary-side unidirectional current switch converting AC line to pulsating DC; operates as part of a 4-diode bridge or single-diode output stage.

Use Value: Low V_F (≤1.15 V) reduces conduction loss at 3 A, improving efficiency and easing thermal management in space-constrained enclosures.

Use Scenario: Input rectification in constant-current LED drivers for commercial downlights and streetlight modules.

IC Role / Device Role / Timing Role: Front-end rectifier in isolated flyback or non-isolated buck-derived topologies; handles continuous 3 A output current with high reliability.

Use Value: 150 °C maximum junction temperature and MSL Level 1 enable stable operation in thermally demanding LED housings without derating.

Industrial SMPS

DC-DC Converter Inputs

Use Scenario: Bulk rectification in 24–48 V industrial switch-mode power supplies powering PLCs, sensors, and motor controllers.

IC Role / Device Role / Timing Role: High-current path component in full-wave bridge configuration; subjected to frequent load transients and ambient temperatures up to 85 °C.

Use Value: 100 A I_FSM rating ensures robustness against line surges and short-circuit events common in factory-floor electrical environments.

Use Scenario: Input-stage rectification in isolated DC-DC modules converting 48 V telecom or PoE-derived rails to lower voltages.

IC Role / Device Role / Timing Role: Secondary-side or auxiliary supply rectifier; provides regulated bias for control ICs and gate drivers.

Use Value: DO-214AB (SMC) package offers superior thermal dissipation over SMA/SMB, supporting higher power density in compact module designs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH3L06S	600 V V_RRM, 3 A I_F, 50 ns trr, TO-277 package	Designed for higher-voltage, faster-switching PFC and boost stages; unsuitable for 100 V nominal systems due to over-spec and cost penalty.	Select only if system requires >400 V V_RRM headroom or sub-100 ns recovery; otherwise, S3BHR7G offers better cost/performance balance at 100 V.
SB3100	100 V V_RRM, 3 A I_F, 1000 ns trr, DO-214AA (SMA) package	Smaller SMA package limits thermal performance (R_θJA ≈ 75 °C/W vs. 47 °C/W); less suitable for sustained 3 A loads above 60 °C ambient.	Acceptable for low-duty-cycle or low-ambient applications; choose S3BHR7G when board-level thermal management or long-term reliability at full load is critical.

Compared with STTH3L06S and SB3100, the S3BHR7G provides optimal trade-off of 100 V rating, 3 A current capacity, and DO-214AB thermal performance for mainstream industrial and lighting rectification-without over-engineering voltage margin or compromising thermal robustness.

Availability

S3BHR7G is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and industrial AC/DC converters requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for S3BHR7G 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 global industrial, computing, and consumer markets since 1979.

The S3x series was designed specifically for high-volume, cost-optimized AC/DC rectification in power adapters, lighting, and industrial SMPS-emphasizing reliability, manufacturability, and regulatory compliance over ultra-fast switching.

FAQ

What is the maximum junction temperature rating for the S3BHR7G?

The S3BHR7G has a maximum junction temperature (T_J) of +150 °C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This allows operation in high-ambient environments such as enclosed LED drivers or industrial power supplies when properly heatsinked. Derating curves confirm usable current capacity down to 0 A at 150 °C case temperature. The S3BHR7G must not exceed this limit to maintain reliability and avoid parametric shift.

Is the S3BHR7G RoHS and halogen-free compliant?

Yes, the S3BHR7G is fully RoHS compliant and halogen-free, as confirmed in the "Features" section of the Taiwan Semiconductor S3A–S3M datasheet (Version O2301). This compliance meets EU Directive 2011/65/EU and IPC-4101D requirements for lead-free soldering and environmentally restricted substances, making the S3BHR7G suitable for export to global markets including the EU and China.

What does the 'S3B' in S3BHR7G indicate?

The 'S3B' prefix in S3BHR7G identifies it as the 100 V variant within Taiwan Semiconductor's S3x rectifier family, where 'S3A' = 50 V, 'S3B' = 100 V, 'S3D' = 200 V, etc. The 'HR7G' suffix denotes tape-and-reel packaging (7-inch reel), green compound (halogen-free), and standard JEDEC-compliant DO-214AB (SMC) molding. This coding aligns with TSC's official ordering information table.

Can the S3BHR7G replace a 1N5408 in an existing design?

The S3BHR7G is not a direct replacement for the 1N5408 due to differing packages and thermal characteristics: the 1N5408 uses DO-201AD (axial) while the S3BHR7G uses DO-214AB (SMC, surface-mount). Though both share 3 A / 1000 V ratings, the S3BHR7G has lower V_F (1.15 V vs. ~1.2 V) and superior thermal resistance (13 °C/W vs. ~30 °C/W), but requires PCB redesign for SMT placement. Use only after layout and thermal validation.

What is the reverse recovery time (trr) specification for the S3BHR7G?

The S3BHR7G has a reverse recovery time (t_rr) of 1500 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A, as specified in the Electrical Specifications table of the Taiwan Semiconductor S3A–S3M datasheet. This value confirms standard recovery behavior-suitable for 50/60 Hz and low-kHz rectification-but not for high-frequency (>100 kHz) synchronous rectifier replacement. The S3BHR7G should not be substituted in circuits relying on ultrafast recovery.

S3BHR7G Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: DO-214AB, SMC

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Technology:: Standard

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

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 1.15 V @ 3 A

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

Reverse Recovery Time (trr):: 1.5 µs

Current - Reverse Leakage @ Vr:: 5 µA @ 100 V

Capacitance @ Vr, F:: 30pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DO-214AB (SMC)

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

S3BHR7G FAQ

1.How can I place an order for S3BHR7G through Aetrix?

Please submit a Request for Quotation (RFQ) for S3BHR7G 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 S3BHR7G reliable?

The price and inventory of S3BHR7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3BHR7G is usually 5 days.

3.What payment methods are accepted for S3BHR7G?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3BHR7G transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S3BHR7G?

S3BHR7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S3BHR7G 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 S3BHR7G?

For technical support, including S3BHR7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3BHR7G requirements.

6.How does Aetrix verify that S3BHR7G is sourced from the original manufacturer or authorized distributors?

All S3BHR7G 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 S3BHR7G meets industry standards.

7.What is the process for return or replacement of S3BHR7G?

All S3BHR7G units undergo pre-shipment inspection (PSI). If there is an issue with S3BHR7G, 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 S3BHR7G part is unused and in its original packaging.

Return procedure for S3BHR7G:

1.Submit a request within 90 days.

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

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