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Taiwan Semiconductor Corporation ES1JF-T
- Part No.:
- ES1JF-T
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-221AC, SMA Flat Leads
- Datasheet:
-
ES1JF-T.pdf
- Description:
- 35NS, 1A, 600V, SUPER FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:7,025
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Product details
Overview
ES1JF-T from Taiwan Semiconductor is a 1A, 600V super fast surface-mount rectifier in SMAF package, featuring 1.30V forward voltage at 1.0A/25°C, 35ns reverse recovery time, and 7pF junction capacitance - optimized for high-frequency switching mode power supplies and freewheeling paths in DC-DC converters.
For engineers reviewing the ES1JF-T datasheet, ES1JF-T pinout, ES1JF-T application, or ES1JF-T equivalent, key selection criteria include peak reverse voltage (600V), thermal resistance (RθJL = 15°C/W), low leakage (<5µA @ 25°C), and compatibility with automated SMT assembly on standard PCB pads.
Technical Context
This single-die, glass-passivated silicon rectifier delivers super-fast recovery (trr ≤ 35ns) via optimized PN junction design, enabling efficient operation in 100kHz–500kHz switching topologies. Its low Qrr and minimal stored charge reduce switching losses and EMI generation in flyback and boost converters.
The SMAF package provides robust thermal performance (RθJA = 89°C/W on 5mm × 5mm Cu pad) and meets J-STD-020 Level 1 moisture sensitivity, supporting lead-free reflow without preconditioning. Cathode band polarity marking ensures unambiguous orientation during placement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - supports input stages up to 400V DC bus with 50% safety margin |
| IF | 1 A continuous - rated for sustained conduction in compact 12–24V output rails |
| trr | 35 ns - enables stable operation in high-frequency SMPS without excessive switching loss |
| VF @ 1A/25°C | 1.30 V max - limits conduction loss to <1.3W at full load, easing thermal design |
| CJ | 7 pF - reduces capacitive coupling noise and improves EMI profile in high-dv/dt circuits |
| IR @ 25°C | ≤5 µA - minimizes standby power loss in always-on auxiliary supplies |
| RθJL | 15 °C/W - allows direct heat transfer to PCB copper, simplifying thermal relief layout |
Pinout & Package
SMAF (Surface Mount Axial Flat) package: molded UL 94V-0 compound, matte tin-plated leads, cathode indicated by band, weight ≈ 0.035g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in flyback secondary) |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; ties to output rail or filter capacitor positive |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term reliability under thermal cycling and humid environments |
| Super fast recovery (35ns) | Reduces reverse recovery charge (Qrr) to <15nC, lowering diode-induced switching loss |
| Junction capacitance: 7pF | Minimizes displacement current during voltage transitions, improving EMI compliance |
| Moisture sensitivity level 1 | Eliminates bake requirement before reflow, streamlining high-volume SMT production |
| RoHS & halogen-free | Meets IEC 61249-2-21 and global environmental compliance mandates |
Applications
| AC-DC Adapter Secondary Rectification | DC-DC Boost Converter Freewheel Diode |
|---|---|
Use Scenario: 12V/1A isolated output stage in universal-input wall adapters. IC Role / Device Role / Timing Role: Output rectifier conducting during transformer reset phase. Use Value: 600V VRRM accommodates reflected transients; 35ns trr prevents cross-conduction loss with synchronous MOSFETs. | Use Scenario: High-efficiency 24V-to-48V boost converter in industrial IoT gateways. IC Role / Device Role / Timing Role: Freewheel path for inductor current when main switch is off. Use Value: Low 7pF CJ avoids resonance with boost inductor; 15°C/W RθJL enables thermal coupling to ground plane. |
| Switch-Mode Inverter Auxiliary Supply | Freewheeling Diode in Motor Drive H-Bridge |
Use Scenario: 15V auxiliary supply derived from main DC bus in servo drive controllers. IC Role / Device Role / Timing Role: Rectifier in self-oscillating flyback topology powering gate drivers. Use Value: 1.30V VF at 1A keeps dissipation below 1.5W; 100µA IR @ 125°C maintains regulation stability. | Use Scenario: Bidirectional freewheeling path in 24V brushed DC motor control. IC Role / Device Role / Timing Role: Clamping diode absorbing inductive kickback during PWM turn-off. Use Value: 30A IFSM withstands stall-current surges; cathode band ensures correct polarity in dense H-bridge layouts. |
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 1A/600V rating; trr = 30ns; VF = 1.25V @ 1A/25°C; TO-277 package | TO-277 has higher RθJA (110°C/W); requires larger pad area than SMAF | Prefer for higher surge tolerance (IFSM = 50A) where board space permits |
| MBR160F | Lower VRRM (60V); Schottky architecture; VF = 0.52V @ 1A/25°C; same SMAF package | Not suitable for >100V reverse stress; used only in low-voltage synchronous rectification | Select only for 5–24V output rails where ultra-low VF outweighs voltage limitation |
Compared with STTH1R06S and MBR160F, the ES1JF-T uniquely balances 600V capability, SMAF footprint, and 35ns recovery in cost-sensitive industrial power supplies - offering optimal trade-off between voltage headroom, thermal efficiency, and assembly compatibility.
Availability
ES1JF-T is available at Aetrix Electronics and suitable for DC-DC converters, switching mode inverters, and freewheeling applications requiring stable component supply, consistent parametric performance across production lots, and RoHS-compliant sourcing.
Supply support for ES1JF-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 device manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS diodes, and MOSFETs for industrial and consumer markets.
The ES1x-F-T series was developed specifically for high-frequency, surface-mount power conversion systems demanding reliable super-fast recovery, low leakage, and automated assembly compatibility - targeting cost-optimized AC-DC and DC-DC designs.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for ES1JF-T?
The ES1JF-T has a specified VRRM of 600 V, confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version B2103). This rating applies under standard conditions (TA = 25°C) and defines the highest reverse voltage the device can block repeatedly without breakdown. It is the defining parameter distinguishing ES1JF-T from lower-voltage variants like ES1DF-T (200V) and ES1GF-T (400V).
Does ES1JF-T support lead-free reflow soldering?
Yes, ES1JF-T supports lead-free reflow soldering. Its matte tin-plated leads comply with J-STD-002 solderability requirements, and its moisture sensitivity level is rated J-STD-020 Level 1 - meaning no baking or dry-pack handling is required prior to reflow. The SMAF package is qualified for standard Pb-free reflow profiles up to 260°C peak temperature.
What is the typical forward voltage drop of ES1JF-T at 1.0A and 125°C?
At 1.0A forward current and 125°C junction temperature, the ES1JF-T exhibits a typical forward voltage (VF) of 1.03 V, with a maximum of 1.26 V, per the Electrical Specifications table. This reduced VF versus room-temperature operation reflects the negative temperature coefficient of silicon PN junctions and is critical for thermal stability in high-ambient environments.
Is ES1JF-T suitable for use in automotive applications?
No, ES1JF-T is not qualified for automotive applications. Taiwan Semiconductor explicitly states in the product notice that "The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications." It lacks AEC-Q101 qualification, extended temperature validation beyond –55°C to +150°C, and automotive-specific reliability testing - making it appropriate only for industrial, consumer, and commercial power supplies.
How does the junction capacitance of ES1JF-T compare to other variants in the ES1x-F-T family?
The ES1JF-T has a measured junction capacitance (CJ) of 7 pF at 1 MHz and 4.0 V reverse bias - lower than ES1GF-T (11 pF) and ES1DF-T (20 pF). This reduction correlates with higher VRRM due to wider depletion region width, directly improving high-frequency noise immunity and reducing capacitive switching losses in fast-switching topologies.
ES1JF-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):
- 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:
- 5 µA @ 600 V
- Capacitance @ Vr, F:
- 7pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SMAF
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES1JF-T FAQ
1.How can I place an order for ES1JF-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ES1JF-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 ES1JF-T reliable?
The price and inventory of ES1JF-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES1JF-T is usually 5 days.
3.What payment methods are accepted for ES1JF-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES1JF-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES1JF-T?
ES1JF-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES1JF-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 ES1JF-T?
For technical support, including ES1JF-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES1JF-T requirements.
6.How does Aetrix verify that ES1JF-T is sourced from the original manufacturer or authorized distributors?
All ES1JF-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 ES1JF-T meets industry standards.
7.What is the process for return or replacement of ES1JF-T?
All ES1JF-T units undergo pre-shipment inspection (PSI). If there is an issue with ES1JF-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 ES1JF-T part is unused and in its original packaging.
Return procedure for ES1JF-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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