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Taiwan Semiconductor Corporation ES2JAF-T
- Part No.:
- ES2JAF-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
ES2JAF-T.pdf
- Description:
- 35NS, 2A, 600V, SUPER FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:6,980
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Product details
Overview
ES2JAF-T from Taiwan Semiconductor is a 2 A, 600 V super fast surface-mount rectifier in SMAF package, featuring 35 ns reverse recovery time, 1.44 V forward voltage at 2 A/25°C, and 12 pF junction capacitance - optimized for high-frequency switching mode power supplies and freewheeling paths in DC-DC converters.
For engineers reviewing the ES2JAF-T datasheet, ES2JAF-T pinout, ES2JAF-T application, or ES2JAF-T equivalent, key selection criteria include peak reverse voltage rating (600 V), thermal resistance (RθJL = 15 °C/W), low leakage (<5 µA @ 25°C), and compatibility with automated SMT assembly on standard PCB pads.
Technical Context
The ES2JAF-T employs a single-die, glass-passivated PN junction optimized for super-fast recovery (trr ≤ 35 ns) under 0.5 A forward / 1.0 A reverse test conditions. Its 600 V VRRM rating supports primary-side rectification in offline SMPS designs where high blocking voltage and low stored charge are critical.
Thermal performance is defined for mounting on a 5 mm × 5 mm copper pad: RθJA = 89 °C/W (ambient), RθJC = 22 °C/W (case), and RθJL = 15 °C/W (lead), enabling reliable 2 A continuous operation up to TJ = 150°C with appropriate board-level heat sinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - supports input rectification in universal AC-DC front-ends up to 400 V DC bus |
| IF | 2 A continuous - rated for sustained conduction in 20–50 W DC-DC secondary-side or freewheeling paths |
| trr | 35 ns - minimizes switching losses and EMI in >100 kHz hard-switched topologies |
| VF @ 2 A, 25°C | 1.44 V (max 1.70 V) - defines conduction loss budget in high-efficiency power stages |
| CJ | 12 pF @ 1 MHz, 4 V - reduces capacitive coupling and improves high-frequency noise immunity |
| IR @ 600 V, 25°C | <5 µA - ensures low standby power loss in energy-sensitive applications |
| TJ max | 150°C - enables operation in thermally constrained industrial enclosures without derating |
Pinout & Package
Package: SMAF (Surface Mount Axial Flat), molded plastic case meeting UL 94V-0; matte tin-plated leads; cathode indicated by band; weight ≈ 0.035 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck freewheel path) |
| Cathode | Forward current exit / reverse blocking terminal | Connected to output rail or higher-potential node; polarity marked by band |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable long-term reliability and moisture resistance (MSL Level 1 per J-STD-020) |
| Super fast recovery (35 ns) | Reduces turn-off loss and diode-induced ringing in high-frequency synchronous rectifiers |
| Low junction capacitance (12 pF) | Minimizes displacement current during voltage transitions, improving EMI profile |
| RoHS & halogen-free compliance | Meets IEC 61249-2-21 and global environmental regulations for industrial and consumer end equipment |
Applications
| DC-DC Converter Secondary Rectification | Switching Mode Inverter Freewheeling |
|---|---|
Use Scenario: High-efficiency isolated flyback or forward converter output stage operating at 100–500 kHz. IC Role / Device Role / Timing Role: Unidirectional current steering and voltage clamping during MOSFET off-time. Use Value: 35 ns trr and 1.44 V VF reduce conduction + switching loss, enabling >92% efficiency at 2 A load. | Use Scenario: Bidirectional inductive load control in motor drive half-bridge inverters. IC Role / Device Role / Timing Role: Freewheeling path for back-EMF current when high-side switch turns off. Use Value: 600 V VRRM withstands inductive kickback spikes; low CJ prevents false triggering of gate drivers. |
| Offline AC-DC Power Supply Input Stage | Industrial PLC Power Rail Protection |
Use Scenario: Bridge rectifier replacement in universal-input (85–265 VAC) SMPS front-end. IC Role / Device Role / Timing Role: Peak voltage clamping and surge current handling during line transients. Use Value: 50 A IFSM (8.3 ms) absorbs line surges; 150°C TJ max supports compact heatsinkless designs. | Use Scenario: Reverse polarity and overvoltage protection on 24 V DC control rails in programmable logic controllers. IC Role / Device Role / Timing Role: Blocking element preventing damage from accidental reverse connection or field wiring errors. Use Value: <5 µA leakage at 25°C ensures minimal standby drain; MSL Level 1 supports reflow-compatible manufacturing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R06S | Same 2 A / 600 V rating; trr = 30 ns; VF = 1.45 V @ 2 A; SMAF package | Slightly faster recovery but higher forward drop; identical footprint | Prefer for ultra-low-noise EMI-critical designs where 5 ns trr reduction justifies marginal VF increase |
| SS26 | 2 A / 600 V Schottky alternative; VF = 0.75 V @ 2 A; no reverse recovery; but IR = 500 µA @ 125°C | Lower conduction loss, but unsuitable for high-voltage reverse-biased hold applications due to leakage | Select only where reverse leakage tolerance >500 µA exists and switching frequency exceeds 1 MHz |
Compared with STTH2R06S and SS26, the ES2JAF-T delivers balanced trade-offs: lowest leakage among 600 V super fast rectifiers, robust 50 A surge rating, and industry-standard SMAF manufacturability - making it optimal for cost-sensitive, thermally constrained industrial power supplies.
Availability
ES2JAF-T is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and industrial PLC power rails requiring stable component supply, full traceability, and long-lifecycle support.
Supply support for ES2JAF-T 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 devices, and MOSFETs for industrial and computing markets.
The ES2JAF-T belongs to TSC's ES2x series of super fast rectifiers, engineered specifically for high-frequency, high-reliability power conversion in space-constrained SMT applications where thermal stability and low leakage are design-critical.
FAQ
What is the maximum repetitive peak reverse voltage rating for ES2JAF-T?
The ES2JAF-T has a maximum repetitive peak reverse voltage (VRRM) rating of 600 V, verified per Taiwan Semiconductor's B2103 datasheet. This rating allows use in universal-input AC-DC front-ends and high-voltage DC bus applications where transient overvoltages must be safely blocked without breakdown. The device maintains this rating across its full operating junction temperature range of –55°C to +150°C.
Does ES2JAF-T support automated SMT placement?
Yes, the ES2JAF-T is explicitly designed for automated surface-mount placement. Its SMAF package features matte tin-plated leads compliant with J-STD-002 solderability standards, and the device carries moisture sensitivity level (MSL) 1 per J-STD-020 - meaning it can be stored indefinitely at ambient conditions without baking prior to reflow. The flat axial form factor ensures stable orientation during pick-and-place operations.
What is the typical forward voltage of ES2JAF-T at 2 A and 125°C?
At 2 A forward current and 125°C junction temperature, the ES2JAF-T exhibits a typical forward voltage (VF) of 1.09 V, with a maximum specified value of 1.50 V. This elevated-temperature VF is critical for thermal design validation, as it reflects real-world conduction loss under worst-case operating conditions in enclosed industrial environments.
How does the junction capacitance of ES2JAF-T compare to lower-voltage variants in the same family?
The ES2JAF-T has a measured junction capacitance (CJ) of 12 pF at 1 MHz and 4 V reverse bias - significantly lower than ES2DAF-T (27 pF) and ES2GAF-T (21 pF). This reduction directly correlates with higher VRRM and thinner depletion region design, resulting in improved high-frequency performance and reduced capacitive coupling in fast-switching circuits.
Is ES2JAF-T RoHS and halogen-free compliant?
Yes, the ES2JAF-T is fully RoHS compliant and halogen-free per IEC 61249-2-21. Taiwan Semiconductor confirms this in the B2103 datasheet, and the device uses molding compound meeting UL 94V-0 flammability rating. These qualifications make ES2JAF-T suitable for export to EU, Japan, and other regulated markets requiring strict environmental compliance.
ES2JAF-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-221AC, SMA Flat Leads
- 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:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- 12pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMAF
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES2JAF-T FAQ
1.How can I place an order for ES2JAF-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ES2JAF-T 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 ES2JAF-T reliable?
The price and inventory of ES2JAF-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2JAF-T is usually 5 days.
3.What payment methods are accepted for ES2JAF-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2JAF-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES2JAF-T?
ES2JAF-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES2JAF-T 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 ES2JAF-T?
For technical support, including ES2JAF-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2JAF-T requirements.
6.How does Aetrix verify that ES2JAF-T is sourced from the original manufacturer or authorized distributors?
All ES2JAF-T 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 ES2JAF-T meets industry standards.
7.What is the process for return or replacement of ES2JAF-T?
All ES2JAF-T units undergo pre-shipment inspection (PSI). If there is an issue with ES2JAF-T, 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 ES2JAF-T part is unused and in its original packaging.
Return procedure for ES2JAF-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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