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Taiwan Semiconductor Corporation ESH2BH
- Part No.:
- ESH2BH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
ESH2BH.pdf
- Description:
- 20NS, 2A, 100V, ULTRA FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:5,800
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Product details
Overview
ESH2BH from Taiwan Semiconductor is a 2 A, 100 V ultra-fast recovery surface-mount rectifier diode in DO-214AA (SMB) package, featuring 20 ns reverse recovery time, 0.9 V forward voltage at 2 A, and AEC-Q101 qualification for automotive-grade reliability. It serves as a freewheeling or snubber diode in high-frequency DC/DC converters and car lighting systems.
For engineers reviewing the ESH2BH datasheet, ESH2BH pinout, ESH2BH application, or ESH2BH equivalent, key selection criteria include its 100 V repetitive peak reverse voltage, 60 A surge rating, 175 °C maximum junction temperature, ultra-fast 20 ns trr, and AEC-Q101 qualification for under-hood automotive use.
Technical Context
The ESH2BH is a single-die, unidirectional silicon rectifier optimized for high-efficiency switching applications. Its glass-passivated junction ensures stable leakage performance up to 125 °C (50 µA IR), and its low-profile SMB package supports automated placement while maintaining 20 ns trr for minimal switching loss.
Thermal design is supported by RθJL = 20 °C/W and RθJA = 75 °C/W ratings, enabling sustained 2 A conduction at elevated ambient temperatures when properly heatsinked via leads. The cathode band marking provides unambiguous polarity identification per JEDEC standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum non-repetitive reverse blocking voltage; defines safe operating range in flyback or snubber circuits |
| IF | 2 A - Continuous average forward current; determines thermal sizing for steady-state power dissipation |
| trr | 20 ns - Ultra-fast reverse recovery time; minimizes switching losses in >100 kHz DC/DC topologies |
| VF | 0.9 V @ 2 A, 25°C - Forward voltage drop; directly impacts conduction loss and thermal load at rated current |
| IFSM | 60 A - Peak surge current rating (8.3 ms half-sine); supports inrush and transient overload conditions |
| TJ max | 175 °C - Maximum junction temperature; enables operation in under-hood automotive environments |
| CJ | 25 pF @ 4 V - Junction capacitance; affects high-frequency noise coupling and switching speed in resonant circuits |
Pinout & Package
Package: DO-214AA (SMB), molded plastic case with 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; must be routed with adequate copper area for thermal relief |
| Cathode | Forward current exit / reverse blocking terminal | Marked by visible band; connects to higher-potential node; critical for correct orientation in PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TC, and HTRB |
| Glass passivated junction | Ensures stable reverse leakage (<2 µA @ 25°C, <50 µA @ 125°C) and long-term reliability in humid environments |
| Ultra-fast 20 ns trr | Reduces switching loss and EMI generation in high-frequency (>200 kHz) converter designs |
| DO-214AA (SMB) package | Low-profile, surface-mount footprint compatible with standard reflow profiles and automated pick-and-place |
| Moisture sensitivity level 1 | No bake preconditioning required before assembly; simplifies manufacturing flow and reduces handling risk |
Applications
| DC/DC Converters | Automotive Lighting |
|---|---|
Use Scenario: High-frequency isolated flyback or buck-boost converters in ADAS power supplies. IC Role / Device Role / Timing Role: Freewheeling diode in secondary-side synchronous rectification or snubber network. Use Value: 20 ns trr and 0.9 V VF reduce switching loss and improve efficiency above 200 kHz operation. | Use Scenario: LED headlamp drivers and interior lighting modules requiring robust transient suppression. IC Role / Device Role / Timing Role: Reverse-polarity protection and inductive kick clamping during PWM dimming. Use Value: AEC-Q101 qualification and 175 °C TJ max ensure reliability in engine-compartment-adjacent mounting locations. |
| Snubber Circuits | Freewheeling Applications |
Use Scenario: RCD snubbers across MOSFETs or IGBTs in motor control inverters. IC Role / Device Role / Timing Role: Fast recovery path for stored inductive energy during switching transitions. Use Value: Low CJ (25 pF) and fast trr minimize snubber ring oscillation and improve voltage clamping fidelity. | Use Scenario: Relay coil suppression and solenoid driver flyback paths in body control modules. IC Role / Device Role / Timing Role: Unidirectional current path to dissipate stored magnetic energy safely. Use Value: 60 A IFSM withstands high-energy transients without degradation, extending system lifetime. |
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-2EYH01-M3/54 | Same DO-214AA package; 100 V VRRM, 2 A IF, but trr = 35 ns (slower), VF = 1.05 V (higher) | Less suitable for >150 kHz switching; higher conduction loss in thermally constrained layouts | Acceptable where cost sensitivity outweighs efficiency or frequency requirements |
| ON Semiconductor MUR220RLG | DO-204AL (DO-41) through-hole; 200 V VRRM, 2 A IF, trr = 35 ns, VF = 1.0 V | Not SMT-compatible; requires manual or wave soldering; larger footprint and higher inductance | Only viable if board redesign accommodates axial leaded package and lower switching frequency |
Compared with VS-2EYH01-M3/54 and MUR220RLG, the ESH2BH delivers superior high-frequency performance due to its 20 ns trr and lower VF, while maintaining AEC-Q101 compliance and SMB compatibility-making it optimal for space-constrained, high-efficiency automotive power stages.
Availability
ESH2BH is available at Aetrix Electronics and suitable for DC/DC converters, automotive lighting systems, and snubber circuits requiring stable component supply, AEC-Q101 assurance, and consistent ultra-fast recovery performance.
Supply support for ESH2BH 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 semiconductor manufacturer specializing in discrete power devices, including rectifiers, TVS diodes, and MOSFETs, with global distribution and automotive qualification capabilities.
The ESH2BH belongs to TSC's AEC-Q101-qualified ultra-fast rectifier family, engineered specifically for high-reliability automotive power conversion and industrial switching applications demanding low VF, fast trr, and robust thermal performance.
FAQ
What is the maximum junction temperature rating for ESH2BH?
The ESH2BH has a maximum junction temperature (TJ) rating of +175 °C, verified per AEC-Q101 stress testing. This allows reliable operation in under-hood automotive environments and high-power-density industrial converters where ambient temperatures exceed 105 °C. Derating curves in the datasheet confirm 2 A continuous current capability up to 125 °C ambient with appropriate PCB copper area.
Is ESH2BH pin-compatible with other parts in the ESH2xH series?
Yes, all ESH2xH variants-including ESH2BH, ESH2CH, and ESH2DH-share identical DO-214AA (SMB) packaging, pinout, and mechanical dimensions. Only the repetitive peak reverse voltage differs (100 V, 150 V, 200 V respectively), so ESH2BH can be substituted in lower-voltage designs without layout changes, provided VRRM margin is sufficient for the application.
What does the marking code 'ESH2B' indicate on the ESH2BH device?
The marking code 'ESH2B' laser-etched on the ESH2BH case identifies it as the 100 V version within the ESH2xH family. Per the datasheet, 'B' corresponds to VRRM = 100 V, 'C' to 150 V, and 'D' to 200 V. This marking is standardized across TSC's production lots and aligns with the ordering code ESH2BH used in tape-and-reel packaging.
Does ESH2BH meet RoHS and halogen-free requirements?
Yes, the ESH2BH complies with RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21. The molding compound is UL 94V-0 rated, and terminals are matte tin-plated per J-STD-002 for solderability. These certifications are documented in TSC's material declarations and apply to all production lots of ESH2BH bearing revision A2102.
What is the reverse recovery time (trr) test condition for ESH2BH?
The ESH2BH reverse recovery time is specified as ≤20 ns under the condition: IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A, measured per JEDEC standard test circuit. This value is confirmed at TJ = 25 °C and reflects typical performance; actual trr increases slightly at elevated junction temperatures but remains below 30 ns up to 125 °C.
ESH2BH 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:
- 900 mV @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 20 ns
- Current - Reverse Leakage @ Vr:
- 2 µA @ 100 V
- Capacitance @ Vr, F:
- 25pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 175°C
ESH2BH FAQ
1.How can I place an order for ESH2BH through Aetrix?
Please submit a Request for Quotation (RFQ) for ESH2BH 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 ESH2BH reliable?
The price and inventory of ESH2BH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESH2BH is usually 5 days.
3.What payment methods are accepted for ESH2BH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESH2BH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESH2BH?
ESH2BH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESH2BH 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 ESH2BH?
For technical support, including ESH2BH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESH2BH requirements.
6.How does Aetrix verify that ESH2BH is sourced from the original manufacturer or authorized distributors?
All ESH2BH 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 ESH2BH meets industry standards.
7.What is the process for return or replacement of ESH2BH?
All ESH2BH units undergo pre-shipment inspection (PSI). If there is an issue with ESH2BH, 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 ESH2BH part is unused and in its original packaging.
Return procedure for ESH2BH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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