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Taiwan Semiconductor Corporation ESJLW
- Part No.:
- ESJLW
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123W
- Datasheet:
-
ESJLW.pdf
- Description:
- DIODE GP 600V 800MA SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:19,784
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Product details
Overview
ESJLW from Taiwan Semiconductor is a 600 V, 0.8 A super fast surface-mount rectifier in SOD-123W package, featuring 19 pF junction capacitance, 35 ns reverse recovery time, and 1.14 V typical forward voltage at 0.8 A/25°C. It serves as a freewheeling or output rectifier in high-frequency switching power supplies.
For engineers reviewing the ESJLW datasheet, ESJLW pinout, ESJLW application, or ESJLW equivalent, key selection criteria include peak reverse voltage rating, thermal resistance (RθJA = 88 °C/W), forward voltage trade-offs across temperature, reverse leakage at 125°C (≤150 µA), and SOD-123W board-level mounting compatibility.
Technical Context
The ESJLW is a single-die, glass-passivated silicon PN junction rectifier optimized for high-speed switching operation. Its 35 ns reverse recovery time and low 19 pF junction capacitance enable efficient performance in DC–DC converters operating above 100 kHz.
Thermal design relies on its RθJL = 34 °C/W and RθJC = 35 °C/W ratings when mounted on a 5 mm × 5 mm copper pad. The device operates across –55°C to +150°C junction temperature range with moisture sensitivity level 1 per J-STD-020.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - maximum repetitive reverse voltage before breakdown; defines safe operating ceiling in flyback or boost output stages |
| IF | 0.8 A continuous average forward current - sets steady-state power handling limit at rated ambient conditions |
| trr | 35 ns max - enables high-frequency switching with minimal commutation loss in SMPS topologies |
| VF @ 0.8A, 25°C | 1.14 V typ / 1.70 V max - directly impacts conduction loss and thermal rise in compact power designs |
| CJ @ 1 MHz, 4 V | 19 pF - limits capacitive loading and EMI generation in high-dV/dt node applications |
| RθJA | 88 °C/W - quantifies thermal bottleneck from junction to ambient on standard PCB; guides heatsinking decisions |
| IR @ 600 V, 125°C | ≤150 µA - ensures low standby leakage in high-temperature industrial or automotive auxiliary supplies |
Pinout & Package
Package: SOD-123W - low-profile, surface-mount plastic case with matte tin-plated leads, UL 94V-0 rated molding compound, and cathode band polarity marking. Weight: 0.016 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of load or switch node; must withstand IFSM = 20 A surge |
| Cathode | Forward current exit point; marked by band | Connected to higher-potential rail (e.g., output capacitor positive); defines reverse blocking direction |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enhances long-term reliability and humidity resistance without requiring conformal coating in industrial environments |
| Moisture sensitivity level 1 | Eliminates bake requirements prior to reflow; supports standard SMT assembly without floor-life constraints |
| Low profile SOD-123W package | Enables ultra-thin power supply designs (<1.1 mm height) while maintaining 0.8 A current capability |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 and global environmental directives for consumer, telecom, and industrial end equipment |
| 20 A peak surge rating (8.3 ms) | Withstands inrush and transient overloads common in AC-DC front-end and motor drive freewheeling paths |
Applications
| DC–DC Converter Output Rectification | Switching Mode Inverter Freewheeling |
|---|---|
Use Scenario: Secondary-side synchronous or diode rectification in isolated 12 V/48 V telecom DC–DC modules. IC Role / Device Role / Timing Role: Unidirectional current path enabling energy transfer during transformer reset phase. Use Value: 35 ns trr minimizes switching loss at 300–500 kHz, while 600 V VRRM accommodates reflected transients in flyback designs. | Use Scenario: Freewheeling path across inductive loads (e.g., BLDC motor phases or solenoid drivers). IC Role / Device Role / Timing Role: Provides low-loss current recirculation path during PWM off-time. Use Value: 1.14 V VF at 0.8 A reduces conduction loss versus standard FRDs; 150 µA IR at 125°C maintains efficiency in thermally constrained enclosures. |
| AC–DC Adapter Secondary Rectifier | Industrial Power Supply Snubber Clamp |
Use Scenario: Output rectification in compact 5–20 W wall adapters with universal input and regulated 5 V/9 V/12 V outputs. IC Role / Device Role / Timing Role: Converts transformer secondary AC to unidirectional DC before filtering. Use Value: SOD-123W footprint allows dense layout; 0.016 g weight supports lightweight portable design goals. | Use Scenario: Clamp diode in RCD snubber networks protecting MOSFETs in offline SMPS primary side. IC Role / Device Role / Timing Role: Absorbs inductive energy spikes during switch turn-off. Use Value: 600 V VRRM safely handles reflected voltages up to 450 V DC bus + margin; 20 A IFSM withstands repetitive clamping surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06 | Same 600 V VRRM, but 1 A IF; trr = 50 ns; TO-277 package (larger, higher RθJA) | Higher current rating suits 1 A designs; slower recovery increases switching loss above 200 kHz | Choose STTH1R06 only if >0.8 A average current or TO-277 mechanical fit is required |
| MBR0560 | 60 V VRRM, Schottky architecture; VF ≈ 0.55 V; no reverse recovery (trr = 0) | Lower voltage rating restricts use to ≤48 V output rails; unsuitable for 600 V blocking | Select MBR0560 only for low-VOUT, high-efficiency <100 kHz applications where 600 V blocking is unnecessary |
Compared with STTH1R06 and MBR0560, the ESJLW uniquely balances 600 V blocking, 0.8 A rating, 35 ns speed, and SOD-123W footprint-making it optimal for space-constrained, medium-voltage, high-frequency rectification where thermal and EMI budgets are tight.
Availability
ESJLW is available at Aetrix Electronics and suitable for DC–DC converter output rectification, switching mode inverter freewheeling, and industrial power supply snubber clamp applications requiring stable component supply and consistent parametric performance across production batches.
Supply support for ESJLW 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 industrial, computing, and consumer markets since 1979.
The ESJLW belongs to TSC's ESxLW super fast rectifier family, engineered specifically for high-efficiency, high-frequency switching power conversion where low Qrr, controlled VF, and robust thermal performance are critical.
FAQ
What is the maximum junction temperature rating for the ESJLW?
The ESJLW has a maximum junction temperature (TJ) rating of +150°C, with a storage temperature range of –55°C to +150°C. This rating allows reliable operation in industrial ambient environments up to +85°C when properly derated using its RθJA = 88 °C/W thermal resistance on a 5 mm × 5 mm Cu pad. Thermal design must ensure the ESJLW junction does not exceed this limit under worst-case load and ambient conditions.
Does the ESJLW have a specified reverse recovery time, and how is it measured?
Yes, the ESJLW has a maximum reverse recovery time (trr) of 35 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and IRR = 0.25 A. This parameter is critical for minimizing switching losses in high-frequency SMPS designs. The test method follows JEDEC-standardized double-pulse testing, confirming the ESJLW's suitability for operation up to 500 kHz in well-designed layouts.
What is the forward voltage of the ESJLW at 0.8 A and 125°C?
At 0.8 A forward current and 125°C junction temperature, the ESJLW exhibits a forward voltage (VF) of 0.94 V typical and 1.30 V maximum. This reduced VF versus room temperature (1.14 V typ) reflects the negative temperature coefficient of silicon PN junctions and is essential for accurate thermal modeling in high-temperature applications such as enclosed industrial power supplies.
Is the ESJLW RoHS and halogen-free compliant?
Yes, the ESJLW is fully RoHS compliant and halogen-free in accordance with IEC 61249-2-21. Its matte tin-plated leads meet solderability requirements per J-STD-002, and the molding compound satisfies UL 94V-0 flammability standards. These qualifications support compliance in consumer, telecom, and industrial end equipment subject to EU and global environmental regulations.
What is the polarity marking convention for the ESJLW in the SOD-123W package?
The ESJLW uses a cathode band marking on the SOD-123W package body to indicate the cathode terminal. This band aligns with standard industry practice: the banded end is the cathode (higher potential during forward conduction), and the opposite end is the anode. Correct orientation is essential to ensure proper reverse blocking and avoid catastrophic failure in circuit operation.
ESJLW 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:
- 1.7 V @ 800 mA
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 600 V
- Capacitance @ Vr, F:
- 19pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
- Operating Temperature - Junction:
- -55°C ~ 150°C
ESJLW FAQ
1.How can I place an order for ESJLW through Aetrix?
Please submit a Request for Quotation (RFQ) for ESJLW 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 ESJLW reliable?
The price and inventory of ESJLW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESJLW is usually 5 days.
3.What payment methods are accepted for ESJLW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESJLW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESJLW?
ESJLW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESJLW 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 ESJLW?
For technical support, including ESJLW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESJLW requirements.
6.How does Aetrix verify that ESJLW is sourced from the original manufacturer or authorized distributors?
All ESJLW 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 ESJLW meets industry standards.
7.What is the process for return or replacement of ESJLW?
All ESJLW units undergo pre-shipment inspection (PSI). If there is an issue with ESJLW, 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 ESJLW part is unused and in its original packaging.
Return procedure for ESJLW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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