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Taiwan Semiconductor Corporation ES2JFS
- Part No.:
- ES2JFS
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
ES2JFS.pdf
- Description:
- DIODE GEN PURP 600V 2A SOD128
- Quantity:
- Payment:
- Shipping:
Inventory:2,430
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Product details
Overview
ES2JFS from Taiwan Semiconductor is a 2A, 600V super fast surface-mount rectifier in SOD-128 package, featuring 1.24V forward voltage at 2A/25°C, 35ns reverse recovery time, and 21pF junction capacitance. It serves as a freewheeling or output rectifier in high-frequency switching power supplies requiring low conduction loss and rapid turn-off.
For engineers reviewing the ES2JFS datasheet, ES2JFS pinout, ES2JFS application, or ES2JFS equivalent, key selection criteria include peak reverse voltage rating (600V), thermal resistance (RθJL = 24°C/W), surge current capability (120A @ 1ms), and RoHS/halogen-free compliance for industrial DC-DC and SMPS designs.
Technical Context
The ES2JFS employs a single-die, glass-passivated PN junction optimized for super-fast recovery (trr ≤ 35ns) to minimize switching losses in 100–500kHz converters. Its 600V VRRM rating enables use in universal-input offline SMPS and PFC stages where high reverse blocking is required without sacrificing speed.
Thermal performance is defined by RθJL = 24°C/W and RθJA = 72°C/W on a 5mm × 5mm Cu pad, supporting continuous 2A operation up to +125°C junction temperature with appropriate PCB copper area. The cathode-band polarity marking ensures unambiguous orientation during automated placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Supports universal AC input rectification and high-voltage DC-DC secondary-side isolation. |
| IF | 2 A - Rated average forward current enabling compact 20–40W converter designs without forced cooling. |
| trr | 35 ns - Enables efficient operation in >200kHz switching topologies with minimal reverse recovery loss. |
| VF @ 2A/25°C | 1.24 V - Low conduction drop reduces I²R loss and improves efficiency vs. standard FRDs in mid-power SMPS. |
| CJ | 21 pF - Minimizes capacitive coupling and EMI generation in high-dv/dt switching nodes. |
| RθJL | 24 °C/W - Enables direct heat transfer to PCB copper, simplifying thermal design for surface-mount layouts. |
| IFSM (1ms) | 120 A - Withstands short-circuit transients and startup surges in regulated power supplies. |
Pinout & Package
Package: SOD-128 - Low-profile, surface-mount plastic package with matte tin-plated leads (J-STD-002 compliant), UL 94V-0 molding compound, and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node return path). |
| Cathode | Forward current exit / reverse blocking terminal | Marked by visible band; connects to output rail or filter capacitor positive; blocks 600V reverse voltage. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term reliability under thermal cycling and humidity exposure per J-STD-020 Level 1. |
| Super fast recovery (trr ≤ 35ns) | Reduces switching loss and EMI in high-frequency flyback and LLC resonant converters. |
| Low profile SOD-128 package | Enables <0.9mm board height in space-constrained applications such as USB PD adapters and telecom modules. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for environmentally regulated end equipment. |
Applications
| AC-DC Adapter Output Rectification | DC-DC Buck Converter Freewheeling Diode |
|---|---|
Use Scenario: Secondary-side rectification in 20–36W USB-C PD wall adapters operating at 100–250kHz. IC Role / Device Role / Timing Role: Output rectifier converting high-frequency transformer secondary AC to regulated DC, synchronized with primary-side MOSFET switching. Use Value: 600V VRRM accommodates reflected voltage spikes; 35ns trr minimizes dead-time losses and improves light-load efficiency. | Use Scenario: Freewheeling path in 12V-to-5V/3.3V buck converters powering FPGA I/O banks or microcontroller peripherals. IC Role / Device Role / Timing Role: Provides low-loss current recirculation path during high-side MOSFET off-time in synchronous or asynchronous buck topologies. Use Value: 1.24V VF at 2A reduces conduction loss versus Schottky alternatives above 100°C, improving thermal margin. |
| Industrial SMPS Auxiliary Supply | LED Driver Flyback Secondary Rectifier |
Use Scenario: Auxiliary bias supply in 300–800W industrial inverters, deriving +15V/-15V for gate drivers from main DC bus. IC Role / Device Role / Timing Role: High-reliability rectifier handling intermittent 600V reverse stress during bus overvoltage events. Use Value: 150°C TJMAX and 120A IFSM (1ms) ensure robustness against line surges and load dump transients. | Use Scenario: Output rectification in isolated 40–60W constant-current LED drivers for street lighting. IC Role / Device Role / Timing Role: Converts flyback transformer output to stable DC for LED string current regulation. Use Value: 21pF CJ limits capacitive coupling noise into current-sense circuitry, improving dimming stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R06 | 600V VRRM, 2A IF, trr = 30ns, TO-220AC package (larger footprint, higher RθJA) | Requires heatsink for >1.2A continuous; unsuitable for ultra-thin designs | Choose STTH2R06 only when higher surge rating (150A) and through-hole assembly are prioritized over board space. |
| MBR260 | 60V VRRM, 2A IF, Schottky, VF = 0.72V @ 2A - not voltage-compatible | Only suitable for low-voltage DC-DC; cannot replace ES2JFS in 600V applications | Select MBR260 only for <100V secondary-side rectification where ultra-low VF outweighs reverse voltage limitation. |
Compared with STTH2R06 and MBR260, the ES2JFS uniquely balances 600V blocking, SOD-128 compactness, and 35ns recovery-making it optimal for space-constrained, high-input-voltage SMPS where thermal management relies on PCB copper rather than external heatsinks.
Availability
ES2JFS is available at Aetrix Electronics and suitable for AC-DC adapters, industrial DC-DC converters, and LED driver auxiliary supplies requiring stable component supply, consistent parametric performance, and full traceability across production lots.
Supply support for ES2JFS 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 consumer markets.
The ES2JFS belongs to TSC's ES2xFS super fast rectifier family, engineered specifically for high-efficiency, high-frequency switching power conversion where low recovery time and reliable 600V blocking are critical.
FAQ
What is the maximum junction temperature rating for ES2JFS?
The ES2JFS has a maximum junction temperature (TJMAX) of +150°C, verified per absolute maximum ratings in the official TSC datasheet Version D2103. This rating allows continuous 2A operation at ambient temperatures up to +105°C when mounted on a 5mm × 5mm Cu pad, provided thermal design accounts for RθJA = 72°C/W. Derating curves confirm usable current down to zero at 150°C junction.
Does ES2JFS have a halogen-free construction?
Yes, the ES2JFS is halogen-free in accordance with IEC 61249-2-21 and RoHS-compliant per EU Directive 2011/65/EU. The molding compound, lead finish, and internal die attach materials meet strict halogen content thresholds (<900 ppm bromine, <900 ppm chlorine, total halogens <1500 ppm), as confirmed in TSC's product compliance documentation for Version D2103.
What is the reverse recovery time (trr) specification for ES2JFS?
The ES2JFS reverse recovery time is specified as ≤35ns under test conditions of IF = 0.5A, IR = 1.0A, and Irr = 0.25A, per the Electrical Specifications table in the TSC ES2BFS–ES2JFS datasheet (Version D2103). This value is measured at 25°C and represents the upper limit for design margining in high-frequency SMPS layouts.
Can ES2JFS be used as a direct replacement for ES2GFS in an existing design?
ES2JFS can replace ES2GFS only if the design requires 600V VRRM instead of 400V and can accommodate its higher forward voltage (1.24V vs. 0.97V @ 2A/25°C). Thermal and layout compatibility is maintained-both use SOD-128 and share identical pinout-but efficiency may decrease slightly at light loads due to increased conduction loss.
What does the "J" in ES2JFS signify?
The "J" in ES2JFS is the voltage grade code defined by Taiwan Semiconductor, indicating a repetitive peak reverse voltage (VRRM) rating of 600V. This coding follows the family pattern ES2BFS (100V), ES2DFS (200V), ES2GFS (400V), and ES2JFS (600V), as explicitly stated in the Ordering Information section of the D2103 datasheet.
ES2JFS 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):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 2 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
ES2JFS FAQ
1.How can I place an order for ES2JFS through Aetrix?
Please submit a Request for Quotation (RFQ) for ES2JFS 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 ES2JFS reliable?
The price and inventory of ES2JFS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2JFS is usually 5 days.
3.What payment methods are accepted for ES2JFS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2JFS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES2JFS?
ES2JFS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES2JFS 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 ES2JFS?
For technical support, including ES2JFS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2JFS requirements.
6.How does Aetrix verify that ES2JFS is sourced from the original manufacturer or authorized distributors?
All ES2JFS 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 ES2JFS meets industry standards.
7.What is the process for return or replacement of ES2JFS?
All ES2JFS units undergo pre-shipment inspection (PSI). If there is an issue with ES2JFS, 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 ES2JFS part is unused and in its original packaging.
Return procedure for ES2JFS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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