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Taiwan Semiconductor Corporation ESH2DFSH
- Part No.:
- ESH2DFSH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-128
- Datasheet:
-
ESH2DFSH.pdf
- Description:
- 25NS, 2A, 200V, ULTRA FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:13,171
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Product details
Overview
ESH2DFSH from Taiwan Semiconductor is a 2 A, 200 V ultra-fast surface-mount rectifier diode in SOD-128 package, featuring 25 ns reverse recovery time, 0.85 V forward voltage at 2 A/25°C, and AEC-Q101 qualification for automotive switching mode converters and freewheeling applications.
For engineers reviewing the ESH2DFSH datasheet, ESH2DFSH pinout, ESH2DFSH application, or ESH2DFSH equivalent, key selection criteria include ultra-fast recovery (trr ≤ 25 ns), thermal resistance (RθJL = 17 °C/W), moisture sensitivity level 1 compliance, and SOD-128 footprint compatibility with automated placement.
Technical Context
The ESH2DFSH is a single-die, glass-passivated silicon junction rectifier optimized for high-frequency operation. Its ultra-fast recovery (trr ≤ 25 ns) and low forward voltage (VF = 0.85 V @ 2 A, 25°C) minimize switching losses in automotive SMPS and inverters.
Thermal performance is defined by RθJL = 17 °C/W and RθJA = 67 °C/W on a 5 mm × 5 mm Cu pad PCB. The device operates across –55°C to +175°C junction temperature range and meets JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Forward Current (IF) | 2 A continuous - supports medium-power DC-DC output stages without forced cooling |
| Peak Reverse Voltage (VRRM) | 200 V - suitable for 12 V/24 V automotive bus-derived topologies with margin |
| Reverse Recovery Time (trr) | 25 ns max - enables >100 kHz switching in boost/buck converters with low turn-off loss |
| Forward Voltage (VF) | 0.85 V @ 2 A, 25°C - reduces conduction loss vs. standard fast rectifiers (typically ≥0.95 V) |
| Junction-to-Lead Thermal Resistance (RθJL) | 17 °C/W - allows direct thermal transfer to PCB copper, critical for compact automotive modules |
| Surge Current (IFSM) | 80 A @ 8.3 ms - withstands cold-crank and load-dump transients in vehicle power systems |
| Junction Temperature Range (TJ) | –55°C to +175°C - qualified for under-hood engine compartment environments |
Pinout & Package
Package: SOD-128 - low-profile, surface-mount plastic case with matte tin-plated leads; polarity indicated by cathode band; weight ≈ 0.027 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential node (e.g., switch node in buck converter freewheel path) |
| Cathode | Current exit point during forward conduction; marked with band | Connected to higher-potential rail (e.g., output capacitor positive terminal) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Enhances long-term stability and humidity resistance in harsh under-hood conditions |
| Moisture Sensitivity Level 1 | Enables direct use after tape-and-reel delivery-no baking required before SMT assembly |
| Ultra-fast trr ≤ 25 ns | Reduces reverse recovery charge (Qrr) and associated EMI in high-frequency converters |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for eco-conscious automotive supply chains |
Applications
| Automotive DC-DC Converters | On-Board Charger (OBC) Auxiliary Supplies |
|---|---|
Use Scenario: Step-down conversion from 48 V or 12 V battery rails to power microcontrollers and sensors in ADAS ECUs. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck regulators operating at 200–500 kHz. Use Value: 25 ns trr minimizes switching loss and improves efficiency over standard fast rectifiers, extending ECU thermal margin. | Use Scenario: Output rectification in isolated auxiliary power supplies feeding gate drivers and communication ICs in OBC control boards. IC Role / Device Role / Timing Role: High-frequency output rectifier handling 2 A continuous current with minimal voltage drop. Use Value: 0.85 V VF at 2 A reduces conduction loss by ~12% vs. comparable 1.0 V VF devices, improving no-load regulation. |
| Engine Control Unit (ECU) Power Sequencing | Electric Power Steering (EPS) Motor Drivers |
Use Scenario: Reverse polarity protection and back-EMF clamping in multi-rail ECU power domains with cold-crank tolerance. IC Role / Device Role / Timing Role: Protection diode across relay coils and solenoid drivers, absorbing inductive kickback. Use Value: 80 A IFSM rating ensures survival during 12 V system load-dump events per ISO 7637-2 Pulse 5a. | Use Scenario: Freewheeling path in half-bridge motor driver stages supplying 3-phase EPS brushless motors. IC Role / Device Role / Timing Role: Ultra-fast recovery diode paralleled with MOSFET body diodes to reduce shoot-through risk and EMI. Use Value: 175°C TJ max and RθJL = 17 °C/W enable reliable operation adjacent to high-power gate drivers without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-2EY20 | Same SOD-128 package, 2 A/200 V, trr = 35 ns (max), VF = 0.92 V @ 2 A | Higher trr and VF increase switching/conduction loss in >300 kHz designs | Acceptable where thermal headroom exists and efficiency targets are less stringent |
| ON Semiconductor MUR220SFT1G | SOD-123FL package, 2 A/200 V, trr = 25 ns (typ), VF = 0.91 V @ 2 A, no AEC-Q101 | Lacks automotive qualification; smaller footprint but higher RθJA (110 °C/W) | Preferred for cost-sensitive industrial SMPS where AEC-Q101 is not mandated |
Compared with VS-2EY20 and MUR220SFT1G, the ESH2DFSH delivers superior thermal performance (RθJL = 17 °C/W), lower VF, and full AEC-Q101 compliance-making it the optimal choice for space-constrained, thermally demanding automotive power stages requiring long-term reliability.
Availability
ESH2DFSH is available at Aetrix Electronics and suitable for automotive DC-DC converters, on-board charger auxiliary supplies, and electric power steering motor drivers requiring stable component supply and AEC-Q101 assurance.
Supply support for ESH2DFSH 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 global automotive, industrial, and consumer markets since 1979.
The ESH2DFSH belongs to TSC's AEC-Q101-qualified ultra-fast rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in automotive electrification systems.
FAQ
What is the maximum junction temperature rating for the ESH2DFSH?
The ESH2DFSH has a maximum junction temperature (TJ) of +175°C and a minimum of –55°C. This wide operating range supports deployment in under-hood automotive environments such as engine control units and electric power steering modules where ambient temperatures exceed 125°C. The device maintains specified electrical performance across this full range when used within its absolute maximum ratings.
Is the ESH2DFSH suitable for use in automotive applications requiring AEC-Q101 qualification?
Yes, the ESH2DFSH is explicitly AEC-Q101 qualified per the manufacturer's documentation. It has undergone stress testing including temperature cycling, highly accelerated life testing (HALT), and electrostatic discharge (ESD) per AEC-Q101 standards. This qualification confirms its suitability for automotive power conversion, freewheeling, and protection functions in safety-critical systems.
What is the reverse recovery time (trr) specification for the ESH2DFSH?
The ESH2DFSH has a maximum reverse recovery time (trr) of 25 ns under test conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This ultra-fast trr enables efficient operation in switching power supplies operating above 200 kHz, reducing switching losses and associated EMI compared to standard fast recovery diodes.
Does the ESH2DFSH have moisture sensitivity level (MSL) certification?
Yes, the ESH2DFSH is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life at ≤30°C/85% RH and may be mounted directly after tape-and-reel unpacking without baking. This simplifies SMT manufacturing flow and eliminates rework risk due to moisture-induced popcorning during reflow.
What is the marking code printed on the ESH2DFSH device body?
The ESH2DFSH is marked with "H2DFSH" on its package surface. This 6-character code identifies the device variant and is consistent across all production lots. The marking is laser-etched on the cathode-band side of the SOD-128 case and remains legible after standard soldering processes.
ESH2DFSH 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):
- 200 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 960 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 27pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-128
- Operating Temperature - Junction:
- -55°C ~ 175°C
ESH2DFSH FAQ
1.How can I place an order for ESH2DFSH through Aetrix?
Please submit a Request for Quotation (RFQ) for ESH2DFSH 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 ESH2DFSH reliable?
The price and inventory of ESH2DFSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESH2DFSH is usually 5 days.
3.What payment methods are accepted for ESH2DFSH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESH2DFSH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESH2DFSH?
ESH2DFSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESH2DFSH 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 ESH2DFSH?
For technical support, including ESH2DFSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESH2DFSH requirements.
6.How does Aetrix verify that ESH2DFSH is sourced from the original manufacturer or authorized distributors?
All ESH2DFSH 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 ESH2DFSH meets industry standards.
7.What is the process for return or replacement of ESH2DFSH?
All ESH2DFSH units undergo pre-shipment inspection (PSI). If there is an issue with ESH2DFSH, 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 ESH2DFSH part is unused and in its original packaging.
Return procedure for ESH2DFSH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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