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

Taiwan Semiconductor Corporation S1JLW

Name: S1JLW
Brand: Taiwan Semiconductor Corporation
SKU: S1JLW
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S1JLW

Manufacturer:: Taiwan Semiconductor Corporation

Category:: Single Diodes

Package:: SOD-123W

Datasheet:: S1JLW.pdf

Description:: DIODE GEN PURP 600V 1A SOD123W

Quantity:: RFQ Add To RFQ list

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Inventory:9,127

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Product details

Overview

S1JLW from Taiwan Semiconductor is a 1 A, 600 V standard surface-mount silicon rectifier diode in SOD-123W package, featuring 30 A non-repetitive surge capability, 1.1 V max forward voltage at 1 A, and 1 µA max reverse leakage at 25°C - used in DC-DC converters and switching-mode power supplies for efficient unidirectional current control.

For engineers reviewing the S1JLW datasheet, S1JLW pinout, S1JLW application, or S1JLW equivalent, key selection criteria include peak reverse voltage (600 V), thermal resistance (R_θJL = 25 °C/W), junction temperature range (–55 to +175 °C), and SOD-123W mechanical compatibility with automated placement systems.

Technical Context

The S1JLW is a single-die, planar passivated silicon PN junction rectifier optimized for high-efficiency AC-to-DC conversion in compact power stages. Its 600 V V_RRM, 1 A average forward current rating, and 30 A I_FSM support robust operation under transient overload conditions typical in flyback and buck-derived topologies.

Thermally, the device uses a low-profile SOD-123W package with matte tin-plated leads and UL 94V-0 molding compound, delivering R_θJL = 25 °C/W and R_θJA = 80 °C/W - enabling reliable conduction in space-constrained industrial and consumer power modules without forced airflow.

Key Specifications

Parameter	Value and Actual Design Meaning
V_RRM	600 V - maximum repetitive reverse voltage the diode blocks without breakdown; defines usable input voltage range in offline rectification
I_F	1 A - continuous average forward current at T_A = 75°C; sets steady-state power handling in DC-DC output stage
I_FSM	30 A - peak non-repetitive surge current (8.3 ms half-sine); supports inrush and fault-current tolerance
V_F @ 1 A	≤1.1 V - forward voltage drop at rated current; directly determines conduction loss (P_cond ≈ 1.1 W)
T_J Range	–55 to +175 °C - operating junction temperature window; enables deployment in automotive under-hood or industrial ambient environments
C_J	8 pF @ 1 MHz, 4 V - junction capacitance affecting high-frequency switching noise and snubber design in SMPS
R_θJL	25 °C/W - thermal resistance from junction to lead; critical for estimating local PCB trace heating in high-density layouts

Pinout & Package

Package: SOD-123W - surface-mount, low-profile plastic case with cathode band marking; dimensions per Taiwan Semiconductor drawing D2109; moisture sensitivity level 1 (J-STD-020); RoHS and halogen-free compliant.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Forward current entry point	Connected to lower-potential side of AC source or switch node; polarity must align with PCB cathode band marking
Cathode	Forward current exit / reverse blocking terminal	Connected to output rail or positive bus; cathode band on package identifies this terminal for automated optical inspection

Key Features

Feature	Design Value
High surge current capability	30 A I_FSM withstands repeated startup surges and short-circuit transients in unregulated power supplies
Low forward voltage	1.1 V max V_F reduces conduction losses by ~15% vs. comparable 1 A/600 V diodes with V_F > 1.25 V
Compact SOD-123W footprint	Enables placement on 1.6 mm pitch pads; compatible with 0805-sized land patterns and high-speed pick-and-place machines
Moisture sensitivity level 1	No bake requirement before reflow; eliminates production delay and delamination risk in standard assembly lines
UL 94V-0 molding compound	Self-extinguishing encapsulant meets safety standards for enclosed power adapters and industrial control units

Applications

DC-DC Converter Output Rectification	Switching Mode Inverter Input Stage
Use Scenario: Used as secondary-side freewheeling diode in isolated flyback converters delivering 5–24 V at up to 1 A. IC Role / Device Role / Timing Role: Unidirectional current path during transformer reset phase; handles discontinuous conduction mode (DCM) current pulses. Use Value: 1.1 V V_F minimizes output loss; 600 V V_RRM provides margin against reflected voltage spikes in 24 V output designs.	Use Scenario: Front-end AC rectification in 100–240 VAC input inverters for motor drives and UPS systems. IC Role / Device Role / Timing Role: Half-wave or full-wave bridge leg component; conducts during positive half-cycle of mains input. Use Value: 30 A I_FSM absorbs inrush current from bulk capacitor charging; 175 °C T_JMAX sustains operation during thermal cycling.
Industrial Sensor Power Supply	LED Driver Auxiliary Rectification
Use Scenario: Input rectifier in 24 VDC-powered field transmitters with wide ambient temperature range (–40 to +85 °C). IC Role / Device Role / Timing Role: Converts rectified AC or pulsed DC into stable DC bus for analog signal conditioning circuitry. Use Value: –55 to +175 °C T_J range ensures reliability across extended temperature profiles; SOD-123W size fits tight board real estate.	Use Scenario: Secondary-side rectifier in constant-current LED drivers powering streetlight or signage arrays. IC Role / Device Role / Timing Role: Provides isolated DC output after transformer coupling; operates in continuous conduction mode (CCM) at 100 kHz switching frequency. Use Value: 8 pF C_J limits capacitive coupling noise into sensitive current-sense paths; low V_F improves overall driver efficiency above 85%.

DC-DC Converter Output Rectification

Switching Mode Inverter Input Stage

Use Scenario: Used as secondary-side freewheeling diode in isolated flyback converters delivering 5–24 V at up to 1 A.

IC Role / Device Role / Timing Role: Unidirectional current path during transformer reset phase; handles discontinuous conduction mode (DCM) current pulses.

Use Value: 1.1 V V_F minimizes output loss; 600 V V_RRM provides margin against reflected voltage spikes in 24 V output designs.

Use Scenario: Front-end AC rectification in 100–240 VAC input inverters for motor drives and UPS systems.

IC Role / Device Role / Timing Role: Half-wave or full-wave bridge leg component; conducts during positive half-cycle of mains input.

Use Value: 30 A I_FSM absorbs inrush current from bulk capacitor charging; 175 °C T_JMAX sustains operation during thermal cycling.

Industrial Sensor Power Supply

LED Driver Auxiliary Rectification

Use Scenario: Input rectifier in 24 VDC-powered field transmitters with wide ambient temperature range (–40 to +85 °C).

IC Role / Device Role / Timing Role: Converts rectified AC or pulsed DC into stable DC bus for analog signal conditioning circuitry.

Use Value: –55 to +175 °C T_J range ensures reliability across extended temperature profiles; SOD-123W size fits tight board real estate.

Use Scenario: Secondary-side rectifier in constant-current LED drivers powering streetlight or signage arrays.

IC Role / Device Role / Timing Role: Provides isolated DC output after transformer coupling; operates in continuous conduction mode (CCM) at 100 kHz switching frequency.

Use Value: 8 pF C_J limits capacitive coupling noise into sensitive current-sense paths; low V_F improves overall driver efficiency above 85%.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor MUR160	600 V V_RRM, 1 A I_F, but TO-220AC package (larger, through-hole); 1.25 V V_F max	Requires PCB through-hole mounting and heatsinking; unsuitable for ultra-thin or high-density SMT-only designs	Select when higher thermal mass or legacy through-hole compatibility is required over SMT automation
Vishay VS-1EWH06	600 V V_RRM, 1 A I_F, SOD-123W package, but 1.3 V V_F max and 20 A I_FSM	Lower surge rating and higher conduction loss reduce margin in high-inrush or high-efficiency applications	Acceptable where cost is prioritized over surge robustness and efficiency, and layout allows minor derating

Compared with MUR160 and VS-1EWH06, the S1JLW delivers superior SMT manufacturability, lower forward loss, and higher surge tolerance in the same SOD-123W footprint - making it optimal for modern compact, high-reliability power supplies where thermal and space constraints are critical.

Availability

S1JLW is available at Aetrix Electronics and suitable for DC-DC converters, switching-mode inverters, and industrial sensor power supplies requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for S1JLW 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with global distribution and AEC-Q200-qualified product lines.

The S1JLW belongs to TSC's S1xLW standard rectifier family, designed specifically for cost-sensitive, high-volume AC/DC and DC/DC power conversion applications demanding reliability, automated assembly compatibility, and broad voltage scalability (200–1000 V).

FAQ

What is the maximum junction temperature rating for the S1JLW?

The S1JLW has a maximum junction temperature (T_JMAX) of +175 °C, verified per Taiwan Semiconductor's D2109 datasheet revision. This rating allows the S1JLW to operate reliably in high-ambient industrial environments and under sustained load conditions without thermal shutdown. The S1JLW maintains specified electrical parameters up to this limit when thermal design accounts for its R_θJL = 25 °C/W.

Does the S1JLW have a halogen-free construction?

Yes, the S1JLW is halogen-free in accordance with IEC 61249-2-21, as confirmed in the "Features" section of the official Taiwan Semiconductor datasheet (Version D2109). This compliance ensures reduced toxic gas emission during PCB soldering and end-of-life disposal, supporting environmental and safety requirements for consumer and industrial electronics.

What is the marking code printed on the S1JLW device body?

The S1JLW is marked with "1JLW" on its package surface, as specified in the "Marking code on the device" table of the Taiwan Semiconductor datasheet. This 4-character laser marking appears adjacent to the cathode band and serves as the visual identification for traceability and assembly verification during automated optical inspection (AOI) processes.

Is the S1JLW suitable for use in RoHS-compliant assemblies?

Yes, the S1JLW is RoHS compliant, meeting EU Directive 2011/65/EU requirements for restricted hazardous substances. This is explicitly stated in the "Features" list of the official datasheet. The S1JLW contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE above threshold limits, making it fully suitable for RoHS-compliant PCB assembly and global market access.

What is the reverse leakage current specification for the S1JLW at elevated temperature?

At T_J = 125 °C and rated reverse voltage (600 V), the S1JLW exhibits a maximum reverse leakage current (I_R) of 50 µA, per the "ELECTRICAL SPECIFICATIONS" table in the D2109 datasheet. This value is measured using a 30 ms pulse test and reflects stable blocking behavior under high-temperature stress - critical for maintaining efficiency in thermally demanding power converter applications.

S1JLW Specifications

Product attributes: Attribute value

Manufacturer:: Taiwan Semiconductor Corporation

Series:: -

Package/Case:: SOD-123W

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:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOD-123W

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

S1JLW FAQ

1.How can I place an order for S1JLW through Aetrix?

Please submit a Request for Quotation (RFQ) for S1JLW 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 S1JLW reliable?

The price and inventory of S1JLW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S1JLW is usually 5 days.

3.What payment methods are accepted for S1JLW?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S1JLW transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S1JLW?

S1JLW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S1JLW 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 S1JLW?

For technical support, including S1JLW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S1JLW requirements.

6.How does Aetrix verify that S1JLW is sourced from the original manufacturer or authorized distributors?

All S1JLW 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 S1JLW meets industry standards.

7.What is the process for return or replacement of S1JLW?

All S1JLW units undergo pre-shipment inspection (PSI). If there is an issue with S1JLW, 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 S1JLW part is unused and in its original packaging.

Return procedure for S1JLW:

1.Submit a request within 90 days.

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

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