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

Taiwan Semiconductor Corporation S3JFSH

Name: S3JFSH
Brand: Taiwan Semiconductor Corporation
SKU: S3JFSH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S3JFSH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-128

Datasheet:: S3JFSH.pdf

Description:: 3A, 600V, STANDARD RECOVERY RECT

Quantity:: RFQ Add To RFQ list

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Inventory:28,000

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Product details

Overview

S3JFSH from Taiwan Semiconductor is a 3A, 600V standard surface-mount rectifier in SOD-128 package, featuring AEC-Q101 qualification, glass passivated junction, and 150°C max junction temperature. It delivers 1.03V forward voltage at 3A/25°C, 50A surge rating, and 14°C/W junction-to-lead thermal resistance for automotive freewheeling and DC/DC converter applications.

For engineers reviewing the S3JFSH datasheet, S3JFSH pinout, S3JFSH application, or S3JFSH equivalent, key selection factors include its AEC-Q101 compliance, low-profile SOD-128 footprint, 600V reverse voltage rating, thermal performance on PCB (R_θJA = 74°C/W), and cathode-band polarity marking for reliable automated assembly.

Technical Context

The S3JFSH is a single-die, standard recovery rectifier optimized for high-reliability automotive and industrial power conversion. Its glass-passivated junction ensures stable operation across -55°C to +150°C ambient, while the SOD-128 package supports J-STD-020 Level 1 moisture sensitivity and JESD 201 Class 2 whisker resistance.

Electrical behavior is defined by 1.10V max forward voltage at 3A/25°C, 1µA max reverse leakage at 600V/25°C, and 14pF junction capacitance at 1MHz/4V - parameters validated under pulsed test conditions (0.3ms PW for V_F, 30ms PW for I_R).

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - Withstands repetitive reverse voltage up to 600V without breakdown, suitable for 400V DC bus systems with margin.
I_F	3 A continuous - Rated average forward current at T_L = 75°C on 5mm × 5mm Cu pad, enabling compact board-level power designs.
I_FSM	50 A (8.3ms) - Handles short-duration inductive surges common in automotive solenoid or relay drive circuits.
V_F	1.03 V max @ 3A/25°C - Limits conduction loss to ≤3.1W per device, critical for thermal management in sealed enclosures.
R_θJL	14 °C/W - Enables direct thermal coupling to PCB copper, supporting >2W dissipation before exceeding 150°C junction limit.
C_J	14 pF @ 1MHz/4V - Minimizes high-frequency switching noise in snubber and flyback auxiliary winding applications.

Pinout & Package

Package: SOD-128 - Low-profile, surface-mount plastic case (JEDEC DO-221AD compliant), 4.40–5.00 mm length, 2.30–2.70 mm width, 1.20 mm height, matte tin-plated leads, cathode indicated by band.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of load or switch node; requires adequate copper area for heat spreading.
Cathode	Forward current exit / reverse blocking terminal	Marked by visible band; ties to higher-potential rail; determines polarity in freewheeling path orientation.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive electronics per stress test requirements (HTOL, TC, HTRB), enabling use in engine control and ADAS subsystems.
Glass passivated junction	Eliminates risk of junction corrosion under humid or chemically aggressive environments, extending field life in under-hood applications.
Moisture sensitivity level 1	Zero bake requirement prior to reflow; compatible with standard SMT lines without dry-pack handling or floor-life constraints.
RoHS & halogen-free	Meets EU Directive 2011/65/EU and IEC 61249-2-21, supporting eco-compliant manufacturing and end-of-life recycling.

Applications

Automotive Power Supplies	Industrial DC/DC Converters
Use Scenario: Reverse polarity protection and freewheeling in 12V/24V vehicle body control modules. IC Role / Device Role / Timing Role: Discrete rectifier providing unidirectional current path and inductive energy recirculation during MOSFET turn-off. Use Value: AEC-Q101 qualification and 150°C T_JMAX ensure reliability in under-dash temperature cycling (−40°C to +105°C ambient).	Use Scenario: Output rectification in isolated 48V-to-12V flyback converters for factory automation I/O modules. IC Role / Device Role / Timing Role: Main power diode converting transformer secondary AC to regulated DC output. Use Value: 600V V_RRM provides margin against reflected voltage spikes; 14°C/W R_θJL enables thermal design without heatsinks.
Snubber Networks	AC-DC Auxiliary Supplies
Use Scenario: RC snubber across relay coils or IGBT collectors in motor drives. IC Role / Device Role / Timing Role: Fast-recovery clamping diode absorbing inductive kickback energy during switching transitions. Use Value: 14pF junction capacitance minimizes capacitive loading on gate drivers while maintaining effective voltage clamping.	Use Scenario: Bias supply rectification in offline SMPS controllers powering microcontrollers and sensors. IC Role / Device Role / Timing Role: High-voltage input-stage rectifier converting rectified AC line to low-power DC rail. Use Value: 50A I_FSM withstands startup inrush into bulk capacitor; glass passivation prevents degradation from long-term AC stress.

Automotive Power Supplies

Industrial DC/DC Converters

Use Scenario: Reverse polarity protection and freewheeling in 12V/24V vehicle body control modules.

IC Role / Device Role / Timing Role: Discrete rectifier providing unidirectional current path and inductive energy recirculation during MOSFET turn-off.

Use Value: AEC-Q101 qualification and 150°C T_JMAX ensure reliability in under-dash temperature cycling (−40°C to +105°C ambient).

Use Scenario: Output rectification in isolated 48V-to-12V flyback converters for factory automation I/O modules.

IC Role / Device Role / Timing Role: Main power diode converting transformer secondary AC to regulated DC output.

Use Value: 600V V_RRM provides margin against reflected voltage spikes; 14°C/W R_θJL enables thermal design without heatsinks.

Snubber Networks

AC-DC Auxiliary Supplies

Use Scenario: RC snubber across relay coils or IGBT collectors in motor drives.

IC Role / Device Role / Timing Role: Fast-recovery clamping diode absorbing inductive kickback energy during switching transitions.

Use Value: 14pF junction capacitance minimizes capacitive loading on gate drivers while maintaining effective voltage clamping.

Use Scenario: Bias supply rectification in offline SMPS controllers powering microcontrollers and sensors.

IC Role / Device Role / Timing Role: High-voltage input-stage rectifier converting rectified AC line to low-power DC rail.

Use Value: 50A I_FSM withstands startup inrush into bulk capacitor; glass passivation prevents degradation from long-term AC stress.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH3L06S	Same 3A/600V rating, but TO-277 package (higher R_θJA = 90°C/W); VF = 1.15V max @ 3A.	Requires larger PCB area; less suitable for ultra-thin automotive modules.	Prefer S3JFSH when board space or thermal budget is constrained.
ES3J	SOD-123 package (smaller, 3.7×1.6mm); lower I_FSM = 30A; VF = 1.15V max @ 3A.	Lower surge capability limits use in high-inductance loads like fuel injectors.	Choose S3JFSH for AEC-Q101 compliance and robust surge handling in safety-critical nodes.

Compared with STTH3L06S and ES3J, the S3JFSH offers superior thermal efficiency (R_θJL = 14°C/W), AEC-Q101 validation, and SOD-128 mechanical robustness - making it the preferred choice for space-constrained, thermally demanding automotive and industrial rectification where reliability under transient stress is mandatory.

Availability

S3JFSH is available at Aetrix Electronics and suitable for automotive power supplies, industrial DC/DC converters, and snubber networks requiring stable component supply, long-term lifecycle support, and AEC-Q101-qualified sourcing.

Supply support for S3JFSH 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, ESD protection, and signal conditioning components.

The S3JFSH belongs to TSC's AEC-Q101-qualified standard rectifier product line, engineered specifically for automotive-grade power conversion where thermal resilience, surge immunity, and process consistency are non-negotiable.

FAQ

What is the maximum junction temperature rating for the S3JFSH?

The S3JFSH has a maximum junction temperature (T_J) of +150°C, verified per absolute maximum ratings table. This allows operation in high-ambient environments such as engine compartments or enclosed industrial power supplies. Derating curves confirm usable current capacity down to −55°C storage, and thermal resistance values (R_θJL = 14°C/W) enable accurate junction temperature estimation during design using measured lead temperature.

Is the S3JFSH suitable for automotive applications?

Yes, the S3JFSH is AEC-Q101 qualified and explicitly listed for automotive applications in its official documentation. Its construction - including glass passivated junction, JESD 201 Class 2 whisker resistance, and moisture sensitivity level 1 - meets automotive reliability requirements. The S3JFSH is deployed in body control modules, lighting drivers, and auxiliary power supplies where sustained operation at 150°C junction temperature is required.

What does the marking code 'S3JFS' on the S3JFSH indicate?

The marking code 'S3JFS' on the S3JFSH device corresponds to the full orderable part number and is specified in the Absolute Maximum Ratings table. It appears on the cathode-end surface of the SOD-128 package alongside date and factory codes. This marking enables visual traceability and distinguishes the S3JFSH from other variants in the S3J series, such as S3JF or S3JFH, which differ in voltage or packaging.

How is thermal performance characterized for the S3JFSH?

Thermal performance of the S3JFSH is characterized with units mounted on a 5mm × 5mm copper pad test board: R_θJL = 14°C/W (junction-to-lead), R_θJC = 20°C/W (junction-to-case), and R_θJA = 74°C/W (junction-to-ambient). These values are measured per JEDEC standards and allow designers to model steady-state and transient thermal behavior - especially critical when operating near the 3A continuous rating in confined layouts.

What is the reverse leakage current specification for the S3JFSH at elevated temperature?

The S3JFSH specifies a maximum reverse leakage current (I_R) of 7 µA at 600V and T_J = 125°C, per Electrical Specifications table. At 25°C, leakage is limited to 1 µA max. These values are measured using a 30ms pulse test, ensuring relevance to real-world transient reverse-bias conditions in snubber and freewheeling circuits where thermal runaway must be avoided.

S3JFSH Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: SOD-128

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Standard

Voltage - DC Reverse (Vr) (Max):: 600 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 1.1 V @ 3 A

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

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 1 µA @ 600 V

Capacitance @ Vr, F:: 14pF @ 4V, 1MHz

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-128

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

S3JFSH FAQ

1.How can I place an order for S3JFSH through Aetrix?

Please submit a Request for Quotation (RFQ) for S3JFSH 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 S3JFSH reliable?

The price and inventory of S3JFSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S3JFSH is usually 5 days.

3.What payment methods are accepted for S3JFSH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S3JFSH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S3JFSH?

S3JFSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S3JFSH 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 S3JFSH?

For technical support, including S3JFSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S3JFSH requirements.

6.How does Aetrix verify that S3JFSH is sourced from the original manufacturer or authorized distributors?

All S3JFSH 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 S3JFSH meets industry standards.

7.What is the process for return or replacement of S3JFSH?

All S3JFSH units undergo pre-shipment inspection (PSI). If there is an issue with S3JFSH, 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 S3JFSH part is unused and in its original packaging.

Return procedure for S3JFSH:

1.Submit a request within 90 days.

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

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