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

Taiwan Semiconductor Corporation S1JFSH

Name: S1JFSH
Brand: Taiwan Semiconductor Corporation
SKU: S1JFSH
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S1JFSH

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-128

Datasheet:: S1JFSH.pdf

Description:: DIODE GEN PURP 600V 1A SOD128

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Inventory:28,000

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Product details

Overview

S1JFSH from Taiwan Semiconductor is a 1 A, 600 V standard surface-mount silicon rectifier diode in SOD-128 package, featuring glass-passivated junction, AEC-Q101 qualification, and 30 A surge capability - used for freewheeling and snubber functions in automotive DC/DC converters.

For engineers reviewing the S1JFSH datasheet, S1JFSH pinout, S1JFSH application, or S1JFSH equivalent, key selection criteria include peak reverse voltage (600 V), forward voltage at 1 A (≤1.10 V @ 25°C), thermal resistance (R_θJL = 29 °C/W), junction temperature range (–55 to +150 °C), and SOD-128 mechanical compatibility with automated placement.

Technical Context

This single-die standard rectifier operates as a unidirectional current switch with cathode-band polarity indication. Its glass-passivated junction ensures stable reverse leakage (<1 µA @ 25°C, <50 µA @ 125°C) and robustness against moisture and whisker growth per JESD201 Class 2.

Thermal performance is defined on a 5 mm × 5 mm Cu pad PCB: R_θJA = 82 °C/W, R_θJC = 30 °C/W, enabling reliable 1 A continuous conduction up to +150 °C junction temperature under appropriate board layout.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - maximum repetitive reverse voltage the device blocks without breakdown; defines safe operating limit in 600 V-rated circuits.
I_F	1 A - average forward current rating at TA = 25°C; derates linearly above 25°C per forward current curve.
I_FSM	30 A - non-repetitive surge current (8.3 ms half-sine); supports transient energy handling in snubber/freewheeling paths.
V_F @ 1 A, 25°C	≤1.10 V - forward voltage drop determines conduction loss and thermal load in high-duty-cycle applications.
T_J max	+150 °C - maximum junction temperature; enables operation in under-hood automotive environments with proper heatsinking.
C_J	9 pF @ 4 V - junction capacitance affects high-frequency switching behavior and EMI in snubber networks.

Pinout & Package

Package: SOD-128 - surface-mount, flat lead, single-anode/single-cathode configuration with cathode band marking; meets UL 94V-0, JEDEC DO-221 AD, and J-STD-020 Level 1 moisture sensitivity.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry terminal	Connected to lower-potential side of circuit; must be routed with adequate copper area for thermal dissipation.
Cathode	Forward current exit terminal	Marked by visible band; connects to higher-potential node; critical for correct polarity in freewheeling path orientation.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive-grade reliability including temperature cycling, HTRB, and UHAST - required for under-hood power modules.
Glass-passivated junction	Eliminates risk of junction corrosion and leakage drift in humid or chemically aggressive environments.
J-STD-020 Level 1 moisture sensitivity	Enables direct placement without baking; reduces manufacturing overhead and avoids moisture-induced popcorning during reflow.
Matte tin-plated leads	Ensures solderability per J-STD-002 and eliminates tin whisker growth per JESD201 Class 2 - critical for long-life automotive systems.

Applications

Automotive DC/DC Converters	Industrial Snubber Circuits
Use Scenario: High-efficiency 12 V to 48 V bidirectional DC/DC converter in 48 V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck-boost topology, conducting during low-side switch off-time. Use Value: 600 V V_RRM provides margin against voltage spikes; 30 A I_FSM handles inductive kickback without failure.	Use Scenario: RC snubber across IGBTs in motor drives operating up to 400 V bus. IC Role / Device Role / Timing Role: Voltage-clamping diode that absorbs turn-off energy and limits dv/dt stress on switching devices. Use Value: Low C_J (9 pF) minimizes capacitive loading on snubber resistor; glass passivation ensures stable IR over lifetime.
On-Board Charger (OBC) Auxiliary Supplies	LED Driver Secondary Rectification
Use Scenario: Auxiliary 12 V supply derived from main OBC transformer secondary in EV charging systems. IC Role / Device Role / Timing Role: Output rectifier in flyback or forward converter delivering isolated low-power bias rails. Use Value: 1 A I_F rating supports typical 5–10 W auxiliary loads; SOD-128 footprint enables compact, automated assembly.	Use Scenario: Secondary-side rectification in constant-current LED drivers for commercial lighting. IC Role / Device Role / Timing Role: Unidirectional current path converting transformer AC output to DC for LED string bias. Use Value: ≤1.10 V V_F at 1 A reduces conduction loss and improves driver efficiency; RoHS/halogen-free compliance meets lighting safety standards.

Automotive DC/DC Converters

Industrial Snubber Circuits

Use Scenario: High-efficiency 12 V to 48 V bidirectional DC/DC converter in 48 V mild-hybrid vehicles.

IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck-boost topology, conducting during low-side switch off-time.

Use Value: 600 V V_RRM provides margin against voltage spikes; 30 A I_FSM handles inductive kickback without failure.

Use Scenario: RC snubber across IGBTs in motor drives operating up to 400 V bus.

IC Role / Device Role / Timing Role: Voltage-clamping diode that absorbs turn-off energy and limits dv/dt stress on switching devices.

Use Value: Low C_J (9 pF) minimizes capacitive loading on snubber resistor; glass passivation ensures stable IR over lifetime.

On-Board Charger (OBC) Auxiliary Supplies

LED Driver Secondary Rectification

Use Scenario: Auxiliary 12 V supply derived from main OBC transformer secondary in EV charging systems.

IC Role / Device Role / Timing Role: Output rectifier in flyback or forward converter delivering isolated low-power bias rails.

Use Value: 1 A I_F rating supports typical 5–10 W auxiliary loads; SOD-128 footprint enables compact, automated assembly.

Use Scenario: Secondary-side rectification in constant-current LED drivers for commercial lighting.

IC Role / Device Role / Timing Role: Unidirectional current path converting transformer AC output to DC for LED string bias.

Use Value: ≤1.10 V V_F at 1 A reduces conduction loss and improves driver efficiency; RoHS/halogen-free compliance meets lighting safety standards.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STTH1R06S	V_RRM = 600 V, I_F = 1 A, but TO-277A package (larger footprint, higher R_θJA = 100 °C/W)	Less suitable for space-constrained automotive modules; requires larger PCB area and thermal relief.	Choose STTH1R06S only if legacy TO-277A footprint is fixed and thermal margin allows.
SB160-E3/5BT	V_RRM = 60 V (not 600 V); same SOD-128 package but incompatible voltage class	Only usable in ≤60 V circuits - not a functional substitute for 600 V blocking requirement.	Select SB160-E3/5BT only for low-voltage consumer applications; not valid for S1JFSH replacement.

Compared with STTH1R06S and SB160-E3/5BT, the S1JFSH uniquely combines 600 V rating, SOD-128 footprint, AEC-Q101 qualification, and 29 °C/W R_θJL - making it the only option meeting automotive space, thermal, and reliability constraints simultaneously.

Availability

S1JFSH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial snubber circuits, and on-board charger auxiliary supplies requiring stable component supply, AEC-Q101 compliance, and SOD-128 surface-mount compatibility.

Supply support for S1JFSH 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 rectifiers, TVS diodes, and MOSFETs for industrial and automotive markets.

The S1JFSH belongs to TSC's S1xFSH family of AEC-Q101-qualified standard rectifiers designed specifically for high-reliability automotive power conversion and industrial snubbing where robustness, thermal efficiency, and automated manufacturability are essential.

FAQ

What is the peak repetitive reverse voltage rating of the S1JFSH?

The S1JFSH has a peak repetitive reverse voltage (V_RRM) rating of 600 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version B2306). It defines the maximum reverse-biased voltage the S1JFSH can block continuously without breakdown, and is the key parameter distinguishing S1JFSH from other members of the S1xFSH series such as S1DFSH (200 V) or S1MFSH (1000 V).

Is the S1JFSH suitable for automotive applications?

Yes, the S1JFSH is explicitly AEC-Q101 qualified per the manufacturer's documentation. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and unbiased highly accelerated stress test (UHAST), confirming suitability for under-hood and powertrain-related automotive systems. The S1JFSH datasheet lists "Automotive application" as a primary use case, and its SOD-128 package meets J-STD-020 Level 1 moisture sensitivity for reflow compatibility.

What is the forward voltage of the S1JFSH at 1 A and 25°C?

The forward voltage (V_F) of the S1JFSH is specified as a maximum of 1.10 V at I_F = 1 A and T_J = 25°C. The typical value is 0.99 V under the same conditions. This parameter is measured using pulse testing (PW = 0.3 ms) to avoid self-heating effects, and directly impacts conduction losses and thermal design in applications like DC/DC converters and snubbers.

Does the S1JFSH have a glass-passivated junction?

Yes, the S1JFSH features a glass-passivated chip junction, as stated in the FEATURES section of the Taiwan Semiconductor datasheet. This construction enhances long-term reliability by protecting the PN junction from environmental contaminants, humidity, and mechanical stress - a critical advantage in automotive and industrial environments where field lifetime exceeds 15 years.

What is the thermal resistance from junction to lead (R_θJL) for the S1JFSH?

The junction-to-lead thermal resistance (R_θJL) of the S1JFSH is 29 °C/W, measured under standard test conditions on a 5 mm × 5 mm copper pad PCB. This low value enables efficient heat transfer from the die to the PCB copper, supporting sustained 1 A operation at elevated ambient temperatures - especially important in densely packed automotive power modules where airflow is limited.

S1JFSH 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):: 1A

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

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

Reverse Recovery Time (trr):: -

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

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

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-128

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

S1JFSH FAQ

1.How can I place an order for S1JFSH through Aetrix?

Please submit a Request for Quotation (RFQ) for S1JFSH 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 S1JFSH reliable?

The price and inventory of S1JFSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1JFSH is usually 5 days.

3.What payment methods are accepted for S1JFSH?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1JFSH transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S1JFSH?

S1JFSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S1JFSH 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 S1JFSH?

For technical support, including S1JFSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1JFSH requirements.

6.How does Aetrix verify that S1JFSH is sourced from the original manufacturer or authorized distributors?

All S1JFSH 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 S1JFSH meets industry standards.

7.What is the process for return or replacement of S1JFSH?

All S1JFSH units undergo pre-shipment inspection (PSI). If there is an issue with S1JFSH, 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 S1JFSH part is unused and in its original packaging.

Return procedure for S1JFSH:

1.Submit a request within 90 days.

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

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