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Taiwan Semiconductor Corporation ES2B
- Part No.:
- ES2B
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
ES2B.pdf
- Description:
- DIODE GEN PURP 100V 2A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,701
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Product details
Overview
ES2B from Taiwan Semiconductor is a 2 A, 100 V super fast recovery surface-mount rectifier in DO-214AA (SMB) package, featuring 35 ns reverse recovery time, 0.95 V forward voltage at 2 A and 25 °C, and 50 A surge current capability - deployed in DC-DC converters and snubber circuits.
For engineers reviewing the ES2B datasheet, ES2B pinout, ES2B application, or ES2B equivalent, key selection criteria include repetitive peak reverse voltage (100 V), thermal resistance (20 °C/W junction-to-lead), moisture sensitivity level (J-STD-020 Level 1), RoHS/halogen-free compliance, and SMB package compatibility with automated placement.
Technical Context
The ES2B is a single-die, unidirectional silicon rectifier optimized for high-frequency switching applications. Its super fast recovery (trr ≤ 35 ns) minimizes switching losses, while glass-passivated junction ensures reliability under thermal cycling and humidity stress.
Designed for operation up to 150 °C junction temperature, the ES2B delivers stable forward conduction (IF = 2 A continuous) and low leakage (IR ≤ 10 µA at 25 °C, ≤ 350 µA at 125 °C) across its rated 100 V reverse voltage range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - maximum repetitive reverse blocking voltage; defines safe operating limit in flyback or snubber networks |
| IF | 2 A - continuous forward current rating at TA = 25 °C; derates linearly above 25 °C per forward current curve |
| trr | 35 ns - measured at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables efficient operation in >100 kHz SMPS topologies |
| VF | 0.95 V - forward voltage drop at 2 A and 25 °C; directly impacts conduction loss and thermal design margin |
| RθJL | 20 °C/W - junction-to-lead thermal resistance; supports direct PCB copper pad heat sinking without heatsink |
| IR | 10 µA @ 25 °C - reverse leakage at rated VR; critical for low-power standby and high-impedance bias networks |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, low-profile, matte tin-plated leads, polarity indicated by cathode band, weight ≈ 0.090 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of circuit (e.g., switch node in buck converter); requires adequate copper area for thermal dissipation |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to output rail or clamp node; must withstand full VRRM during off-state |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enhances long-term reliability under humid environments and thermal cycling; eliminates need for conformal coating in industrial-grade designs |
| Super fast recovery (35 ns) | Reduces reverse recovery charge (Qrr), lowering EMI and improving efficiency in high-frequency DC-DC stages |
| J-STD-020 Level 1 moisture sensitivity | Enables standard SMT reflow without baking; simplifies manufacturing and reduces assembly cost |
| DO-214AA (SMB) package | Standardized footprint compatible with automated pick-and-place; supports 2 A current with minimal board space vs. larger SMA/SMB variants |
Applications
| DC-DC Converter | Snubber Circuit |
|---|---|
Use Scenario: Secondary-side rectification in isolated flyback or forward converters operating at 100–500 kHz. IC Role / Device Role / Timing Role: Unidirectional power conversion element; conducts during transformer reset phase and blocks reverse voltage during primary switch on-time. Use Value: Low VF (0.95 V) reduces conduction loss; fast trr (35 ns) limits switching loss and diode ringing in high-frequency operation. | Use Scenario: RCD snubber network across MOSFET drain-source in hard-switched SMPS or motor drives. IC Role / Device Role / Timing Role: Fast clamping diode that captures inductive energy spike and routes it to capacitor during turn-off transition. Use Value: 35 ns trr ensures rapid turn-on to capture transient energy before voltage overshoot exceeds MOSFET rating. |
| Lighting Application | Freewheeling Diode |
Use Scenario: Output rectification in LED driver IC-based constant-current supplies (e.g., buck-derived offline drivers). IC Role / Device Role / Timing Role: Provides path for inductor current continuity during high-side switch off-time; handles pulsed 2 A load currents. Use Value: 2 A IF rating and 50 A IFSM support surge-tolerant LED string startup; SMB package fits compact LED module layouts. | Use Scenario: Inductive load freewheeling in relay drivers, solenoid controls, or brushed DC motor H-bridge outputs. IC Role / Device Role / Timing Role: Provides low-impedance path for stored inductor energy when driving transistor turns off. Use Value: 100 V VRRM safely clamps back-EMF spikes from 24–48 V systems; 0.95 V VF minimizes voltage drop during sustained freewheeling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor MUR210 | VRRM = 100 V, trr = 35 ns, VF = 0.93 V @ 2 A - nearly identical electrical specs; same DO-214AA package | No functional difference in snubber or DC-DC rectification; validated in same reference designs | Select MUR210 if dual-sourcing or lead-time constraints require alternate supplier |
| Vishay VS-2EY10 | VRRM = 100 V, trr = 50 ns (slower), VF = 0.97 V @ 2 A, RθJA = 70 °C/W - slightly higher recovery time and thermal resistance | Acceptable in <200 kHz applications; may require additional layout cooling in high-density 500 kHz designs | Choose VS-2EY10 only where trr margin >15 ns is available and thermal headroom permits |
Compared with MUR210 and VS-2EY10, the ES2B offers identical VRRM and trr to MUR210 but superior thermal performance (RθJL = 20 °C/W vs. ~25 °C/W typical), while VS-2EY10's slower recovery limits use in high-frequency snubbers despite matching voltage rating.
Availability
ES2B is available at Aetrix Electronics and suitable for DC-DC converters, lighting applications, and snubber circuits requiring stable component supply, J-STD-020 Level 1 handling, and RoHS-compliant manufacturing.
Supply support for ES2B 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 rectifiers, TVS diodes, MOSFETs, and bipolar transistors.
The ES2B belongs to TSC's ES2x super fast rectifier family, engineered specifically for high-efficiency, high-frequency power conversion in compact surface-mount designs where low VF, fast trr, and robust thermal performance are critical.
FAQ
What is the maximum junction temperature rating for the ES2B?
The ES2B has a maximum junction temperature (TJMAX) of +150 °C, verified per absolute maximum ratings table. This allows reliable operation in enclosed industrial power supplies and automotive under-hood auxiliary modules when mounted on sufficient copper area. Thermal design must ensure TJ remains below 150 °C under worst-case load and ambient conditions - the ES2B datasheet provides derating curves for IF vs. TA.
Does the ES2B have a specified reverse recovery time, and how is it measured?
Yes, the ES2B has a maximum reverse recovery time (trr) of 35 ns, measured under standardized conditions: IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is confirmed in the Electrical Specifications table and applies across the full operating temperature range. The ES2B's trr enables efficient use in switching power supplies operating up to 500 kHz without excessive switching loss or EMI generation.
Is the ES2B RoHS compliant and halogen-free?
Yes, the ES2B is RoHS compliant and halogen-free per IEC 61249-2-21. These compliance attributes are explicitly stated in the Features section of the official TSC datasheet (Version L2102). The molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated per J-STD-002 solderability requirements - all verified for ES2B in the mechanical and environmental specifications.
What is the marking code and package type for the ES2B?
The ES2B is marked "ES2B" on the device body and packaged in DO-214AA (SMB) - a standardized surface-mount outline with cathode band polarity indication. The SMB package measures 4.57 mm × 3.94 mm × 2.30 mm and is supplied in 3,000-piece tape-and-reel format. This footprint is fully compatible with industry-standard pick-and-place equipment and PCB land patterns defined in TSC's Package Outline Dimensions document.
What is the forward voltage drop of the ES2B at rated current and temperature?
The ES2B exhibits a typical forward voltage (VF) of 0.95 V at IF = 2 A and TJ = 25 °C, as specified in the Electrical Specifications table. At elevated junction temperatures (e.g., 125 °C), VF decreases slightly due to semiconductor physics, but system-level thermal design must maintain average junction temperature within limits to sustain this conduction performance over lifetime. The ES2B's low VF directly reduces power loss (P = VF × IF) in high-current rectification paths.
ES2B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 100 V
- Capacitance @ Vr, F:
- 25pF @ 4V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES2B FAQ
1.How can I place an order for ES2B through Aetrix?
Please submit a Request for Quotation (RFQ) for ES2B 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 ES2B reliable?
The price and inventory of ES2B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES2B is usually 5 days.
3.What payment methods are accepted for ES2B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES2B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES2B?
ES2B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES2B 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 ES2B?
For technical support, including ES2B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES2B requirements.
6.How does Aetrix verify that ES2B is sourced from the original manufacturer or authorized distributors?
All ES2B 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 ES2B meets industry standards.
7.What is the process for return or replacement of ES2B?
All ES2B units undergo pre-shipment inspection (PSI). If there is an issue with ES2B, 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 ES2B part is unused and in its original packaging.
Return procedure for ES2B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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