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Taiwan Semiconductor Corporation SJLW
- Part No.:
- SJLW
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
SJLW.pdf
- Description:
- DIODE GP 600V 800MA SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:2,888
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Product details
Overview
SJLW from Taiwan Semiconductor is a single-die, standard surface-mount silicon rectifier diode rated for 600 V repetitive peak reverse voltage (VRRM), 0.8 A average forward current (IF), and 20 A non-repetitive surge current (IFSM), used as a primary AC/DC conversion element in compact power supplies and DC-DC converters.
For engineers reviewing the SJLW datasheet, SJLW pinout, SJLW application, or SJLW equivalent, key selection criteria include its SOD-123W package thermal performance (RθJA = 84°C/W), low forward voltage (VF ≤ 1.10 V at IF = 0.8 A, TJ = 25°C), moisture sensitivity level 1 compliance, and cathode-band polarity marking for automated placement verification.
Technical Context
The SJLW operates as a unidirectional, PN-junction rectifier with glass-passivated chip construction ensuring stable reverse leakage (IR ≤ 1 µA at VR = 600 V, TJ = 25°C) and robust surge handling. Its junction-to-ambient thermal resistance of 84°C/W is measured on a 5 mm × 5 mm copper pad PCB, supporting reliable operation up to TJ = 150°C.
Electrical behavior is characterized by temperature-dependent forward voltage-dropping from 0.94 V (TJ = 25°C) to 0.84 V (TJ = 125°C) at 0.8 A-and low junction capacitance (CJ = 7 pF at 1 MHz, VR = 4 V), enabling use in moderate-frequency switching applications without significant capacitive loss.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Maximum reverse voltage the SJLW blocks continuously without breakdown |
| IF | 0.8 A - Continuous average forward current rating at TA = 25°C, derates above 25°C per curve Fig.1 |
| IFSM | 20 A - Peak non-repetitive surge current capability (8.3 ms half-sine), critical for inrush protection |
| VF @ 0.8A, 25°C | ≤ 1.10 V - Forward voltage drop defining conduction loss and thermal load at full rated current |
| IR @ 600V, 25°C | ≤ 1 µA - Reverse leakage current determining off-state power loss and system standby efficiency |
| RθJA | 84 °C/W - Junction-to-ambient thermal resistance on standard 5 mm × 5 mm Cu pad, guiding heatsinking decisions |
Pinout & Package
Package: SOD-123W - Surface-mount plastic case with matte tin-plated leads, UL 94V-0 molding compound, cathode band polarity indicator, and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of AC input or transformer secondary; requires trace width sufficient for 0.8 A continuous |
| Cathode | Forward current exit point | Marked by visible band; connects to output capacitor or downstream converter stage; defines polarity-sensitive placement |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable long-term reverse leakage performance and humidity resistance without hermetic sealing |
| Moisture sensitivity level 1 | Eliminates bake requirements before reflow, reducing manufacturing cost and process complexity |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and EU RoHS directives for environmentally constrained industrial and consumer end equipment |
| Low junction capacitance (7 pF) | Minimizes high-frequency displacement current and EMI generation in switching node applications |
Applications
| AC/DC Adapter Power Supply | Isolated DC-DC Converter Secondary |
|---|---|
Use Scenario: Rectifying 50/60 Hz or high-frequency AC from transformer secondary into pulsating DC for linear or switching regulation. IC Role / Device Role / Timing Role: Primary unidirectional power conversion device; placed directly after transformer winding. Use Value: 600 V VRRM supports universal input (85–265 VAC) designs; 0.8 A IF meets typical <10 W adapter output requirements. | Use Scenario: Output rectification in flyback or forward converters operating at 50–500 kHz switching frequencies. IC Role / Device Role / Timing Role: Synchronous or asynchronous rectifier in isolated secondary-side power path. Use Value: Low VF (≤1.10 V) reduces conduction loss; 7 pF CJ limits ringing and EMI during fast voltage transitions. |
| Industrial Sensor Power Rail | LED Driver Input Stage |
Use Scenario: Providing regulated 3.3 V or 5 V supply for analog sensors or microcontrollers in factory automation nodes. IC Role / Device Role / Timing Role: Input-stage rectifier feeding low-dropout regulator or buck converter. Use Value: RθJA = 84°C/W allows operation in sealed enclosures up to +70°C ambient without forced cooling. | Use Scenario: Converting rectified line voltage to intermediate DC bus for constant-current LED driver ICs. IC Role / Device Role / Timing Role: Bulk rectifier in bridge or single-diode configuration prior to smoothing capacitor. Use Value: 20 A IFSM withstands cold-start surges from large electrolytic capacitors; cathode band ensures correct orientation in high-volume SMT assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH0.8L06S (STMicroelectronics) | VRRM = 600 V, IF = 0.8 A, VF = 1.05 V (0.8 A), SOD-123FL package (slightly longer leadframe) | Same electrical rating but different mechanical footprint; requires PCB land pattern review | Select when ST's qualification or automotive-grade availability is required |
| ES1J (ON Semiconductor) | VRRM = 600 V, IF = 1.0 A, VF = 1.7 V (1.0 A), DO-214AC package (larger, higher RθJA) | Higher current rating but significantly higher VF and thermal resistance; not drop-in | Choose only if higher IF margin is needed and board space permits larger package |
Compared with STTH0.8L06S and ES1J, the SJLW offers the lowest forward voltage among 0.8 A / 600 V SOD-123W rectifiers, optimized for thermally constrained layouts where RθJA ≤ 84°C/W and moisture sensitivity level 1 are mandatory.
Availability
SJLW is available at Aetrix Electronics and suitable for AC/DC adapters, isolated DC-DC converters, and industrial sensor power rails requiring stable component supply, consistent parametric performance, and J-STD-020 Level 1 moisture handling.
Supply support for SJLW 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with ISO/TS 16949 and IATF 16949 certification.
The SJLW belongs to TSC's SDLW–SMLW standard rectifier family, designed specifically for cost-sensitive, high-volume surface-mount power conversion applications demanding reliability, JEDEC-compliant packaging, and environmental compliance.
FAQ
What is the maximum junction temperature rating for the SJLW?
The SJLW has a maximum junction temperature (TJ MAX) of +150°C, verified per absolute maximum ratings table. This rating applies under conditions where thermal design maintains junction temperature within limit-e.g., using recommended 5 mm × 5 mm copper pad and respecting RθJA = 84°C/W. Exceeding +150°C risks permanent degradation of the glass-passivated junction. Always verify actual TJ in final layout using thermal simulation or IR measurement.
Does the SJLW have a specified reverse recovery time (trr)?
No, the SJLW datasheet does not specify reverse recovery time (trr). It is characterized as a standard (non-fast-recovery) rectifier, with electrical specifications focused on steady-state parameters (VF, IR, VRRM) and thermal performance. For applications requiring trr < 500 ns, consider TSC's SFxLW or USxLW fast-recovery families instead of the SJLW.
What does the "JLW" marking code on the SJLW device body indicate?
The "JLW" marking code on the SJLW device body identifies it as the 600 V variant within TSC's SDLW–SMLW rectifier series. Per ordering information, "x" in SxLW corresponds to voltage grade: SJLW = 600 V. The full marking also includes date code (YW) and factory code (F), per the SOD-123W marking diagram in the datasheet.
Can the SJLW be used in place of a 1N4007 in a new design?
The SJLW is not a direct replacement for the 1N4007 due to fundamental differences: the 1N4007 is through-hole (DO-41), rated for 1 A IF and 1000 V VRRM, while the SJLW is SMD (SOD-123W), rated for 0.8 A IF and 600 V VRRM. Substitution requires verifying both current/voltage margins and PCB footprint compatibility-SJLW cannot be mounted in a 1N4007 footprint.
Is the SJLW suitable for automotive applications?
The SJLW is not qualified to AEC-Q101 or automotive-grade reliability standards. While its electrical and thermal specs meet many automotive subsystem requirements (e.g., infotainment power rails), TSC explicitly states in the datasheet notice that these products are "not designed for use in medical, life-saving, or life-sustaining applications"-and automotive safety-critical systems fall under this restriction. Use only in non-safety-critical automotive modules with full customer qualification.
SJLW 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):
- 800mA
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 800 mA
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 600 V
- Capacitance @ Vr, F:
- 7pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
- Operating Temperature - Junction:
- -55°C ~ 150°C
SJLW FAQ
1.How can I place an order for SJLW through Aetrix?
Please submit a Request for Quotation (RFQ) for SJLW 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 SJLW reliable?
The price and inventory of SJLW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SJLW is usually 5 days.
3.What payment methods are accepted for SJLW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SJLW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SJLW?
SJLW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SJLW 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 SJLW?
For technical support, including SJLW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SJLW requirements.
6.How does Aetrix verify that SJLW is sourced from the original manufacturer or authorized distributors?
All SJLW 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 SJLW meets industry standards.
7.What is the process for return or replacement of SJLW?
All SJLW units undergo pre-shipment inspection (PSI). If there is an issue with SJLW, 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 SJLW part is unused and in its original packaging.
Return procedure for SJLW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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