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Taiwan Semiconductor Corporation ES1JFS
- Part No.:
- ES1JFS
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
ES1JFS.pdf
- Description:
- DIODE GEN PURP 600V 1A SOD128
- Quantity:
- Payment:
- Shipping:
Inventory:13,990
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Product details
Overview
ES1JFS from Taiwan Semiconductor is a 1 A, 600 V super fast surface-mount rectifier in SOD-128 package, featuring 35 ns reverse recovery time, 1.15 V forward voltage at 1.0 A/25°C, and 15 pF junction capacitance. It serves as a freewheeling or output rectifier in high-frequency switching power supplies.
For engineers reviewing the ES1JFS datasheet, ES1JFS pinout, ES1JFS application, or ES1JFS equivalent, key selection criteria include peak reverse voltage rating, thermal resistance (RθJL = 28°C/W), surge current capability (60 A @ 1.0 ms), and low-profile SOD-128 mounting compatibility with automated PCB assembly.
Technical Context
The ES1JFS uses a single-die, glass-passivated silicon PN junction optimized for high-speed switching up to several hundred kHz. Its 600 V VRRM and 35 ns trr enable efficient operation in DC-DC converters and SMPS secondary-side rectification where voltage margin and dynamic loss matter.
Thermal design is supported by RθJL = 28°C/W and RθJA = 67°C/W on a 5 mm × 5 mm Cu pad, while moisture sensitivity level 1 ensures robust reflow compatibility without dry-pack requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - supports input/output isolation in 400 V AC line-derived or 300–450 V DC bus systems |
| IF | 1 A continuous - suitable for low-to-medium power outputs up to ~15 W at typical efficiency |
| trr | 35 ns - minimizes switching loss and EMI in >100 kHz converters |
| VF @ 1A/25°C | 1.15 V (typ), 1.70 V (max) - defines conduction loss and thermal load under full load |
| CJ | 15 pF @ 1 MHz / 4 V - limits capacitive coupling and high-frequency noise injection |
| IFSM | 60 A @ 1.0 ms - withstands startup surges and transient overloads without failure |
| RθJL | 28 °C/W - enables direct heat transfer to PCB copper, simplifying thermal management |
Pinout & Package
Package: SOD-128 - low-profile, surface-mount plastic case with matte tin-plated leads, UL 94V-0 rated molding compound, and cathode band polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential node (e.g., switch node or ground return) |
| Cathode | Current exit point during forward conduction; marked with band | Connected to higher-potential node (e.g., output rail or VOUT) |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability and humidity resistance without hermetic sealing |
| Moisture sensitivity level 1 | Eliminates bake requirements before reflow, reducing manufacturing overhead |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 and global environmental directives for industrial and consumer use |
| Low profile SOD-128 footprint | Enables compact layout in space-constrained power modules and adapter PCBs |
| J-STD-002 solderable terminals | Ensures consistent wetting and joint integrity across lead-free reflow profiles |
Applications
| DC-DC Converter | Switching Inverter |
|---|---|
Use Scenario: Secondary-side synchronous or diode rectification in isolated flyback or forward converters delivering 5–12 V at ≤1 A. IC Role / Device Role / Timing Role: Output rectifier handling high-frequency AC from transformer secondary. Use Value: 35 ns trr reduces switching loss and improves efficiency vs. standard rectifiers at 100–300 kHz. | Use Scenario: Freewheeling path in half-bridge motor drive inverters for small appliances or fans. IC Role / Device Role / Timing Role: Clamp diode providing current recirculation during MOSFET off-time. Use Value: 600 V VRRM accommodates voltage spikes from inductive kickback in 24–48 V systems. |
| AC-DC Adapter | Industrial Power Supply |
Use Scenario: Output rectification in compact wall adapters powering IoT sensors or USB-C accessories. IC Role / Device Role / Timing Role: Primary output rectifier converting high-frequency transformer output to regulated DC. Use Value: SOD-128 package allows automated placement and meets creepage/clearance requirements for Class II insulation. | Use Scenario: Auxiliary supply rectification in programmable logic controller (PLC) power rails. IC Role / Device Role / Timing Role: Standby or control-rail rectifier operating continuously at partial load. Use Value: RθJL = 28°C/W enables stable 150°C junction operation with minimal copper area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06S | Same 600 V VRRM, but 50 ns trr; VF = 1.30 V @ 1A/25°C | Slightly higher conduction loss; wider SO-8 package increases board area | Prefer when legacy SO-8 footprint exists and 15 ns slower recovery is acceptable |
| MBR160HFS | Lower 60 V VRRM, Schottky architecture, VF = 0.52 V @ 1A/25°C | Not usable above 60 V; zero reverse recovery but limited voltage range | Select only for ≤48 V systems where ultra-low VF outweighs voltage limitation |
Compared with STTH1R06S and MBR160HFS, the ES1JFS delivers optimal balance of 600 V rating, 35 ns speed, and SOD-128 compactness-making it preferred for new designs targeting cost-effective, high-density 10–20 W AC-DC and DC-DC power stages.
Availability
ES1JFS is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and AC-DC adapters requiring stable component supply, RoHS-compliant sourcing, and tape-and-reel delivery for SMT production.
Supply support for ES1JFS 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 ES1JFS belongs to TSC's ES1xFS super fast rectifier family, engineered specifically for high-efficiency, high-frequency switching power conversion where low trr, controlled VF, and reliable SMT packaging are critical.
FAQ
What is the maximum junction temperature rating for ES1JFS?
The ES1JFS has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This allows continuous operation in thermally demanding environments such as enclosed power adapters or industrial control units, provided PCB thermal design maintains junction temperature below this limit. Derating curves confirm usable current capacity down to 0.5 A at 125°C ambient.
Does ES1JFS have a specified reverse recovery time, and how is it measured?
Yes, ES1JFS specifies a reverse recovery time (trr) of 35 ns maximum, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is confirmed in the Electrical Specifications table of the Taiwan Semiconductor C2103 datasheet and reflects performance at room temperature. The short trr directly reduces switching losses in high-frequency topologies like QR flyback and active clamp forward converters.
Is ES1JFS compatible with lead-free reflow soldering processes?
Yes, ES1JFS features matte tin-plated leads qualified per J-STD-002 for solderability, and its SOD-128 package is rated for standard lead-free reflow profiles (peak ≤260°C). Moisture sensitivity level 1 eliminates pre-bake requirements, enabling direct placement and reflow without special handling-critical for high-throughput SMT lines producing power supplies and consumer electronics.
What is the polarity marking convention for ES1JFS?
The ES1JFS uses a cathode band marking on the SOD-128 package body to indicate the cathode terminal. This band aligns with the cathode pin (pin 2) in the standardized SOD-128 outline, and must be oriented toward the positive rail in circuit layout. The anode is the unmarked end. This marking is consistent across all ES1xFS variants and complies with JEDEC standards for discrete diodes.
How does the junction capacitance of ES1JFS affect EMI performance?
The ES1JFS exhibits a typical junction capacitance (CJ) of 15 pF at 1 MHz and 4 V reverse bias. This low capacitance minimizes high-frequency displacement current during switching transitions, reducing common-mode noise generation and easing EMI filter design in compact power supplies. Compared to slower rectifiers with >30 pF CJ, ES1JFS contributes less to radiated emissions near the switching node.
ES1JFS 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:
- 1.7 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 600 V
- Capacitance @ Vr, F:
- 15pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES1JFS FAQ
1.How can I place an order for ES1JFS through Aetrix?
Please submit a Request for Quotation (RFQ) for ES1JFS 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 ES1JFS reliable?
The price and inventory of ES1JFS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES1JFS is usually 5 days.
3.What payment methods are accepted for ES1JFS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES1JFS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES1JFS?
ES1JFS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES1JFS 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 ES1JFS?
For technical support, including ES1JFS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES1JFS requirements.
6.How does Aetrix verify that ES1JFS is sourced from the original manufacturer or authorized distributors?
All ES1JFS 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 ES1JFS meets industry standards.
7.What is the process for return or replacement of ES1JFS?
All ES1JFS units undergo pre-shipment inspection (PSI). If there is an issue with ES1JFS, 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 ES1JFS part is unused and in its original packaging.
Return procedure for ES1JFS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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