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Taiwan Semiconductor Corporation ES1BH
- Part No.:
- ES1BH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
ES1BH.pdf
- Description:
- DIODE GEN PURP 100V 1A DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:14,999
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Product details
Overview
ES1BH from Taiwan Semiconductor is a 1A, 100V super fast recovery surface-mount rectifier in DO-214AC (SMA) package, featuring 35ns reverse recovery time, 0.95V forward voltage at 1A/25°C, and AEC-Q101 qualification for automotive use in snubber and freewheeling circuits.
For engineers reviewing the ES1BH datasheet, ES1BH pinout, ES1BH application, or ES1BH equivalent, key selection criteria include repetitive peak reverse voltage (100V), thermal resistance (RθJL = 35°C/W), junction temperature range (–55°C to +150°C), and moisture sensitivity level (J-STD-020 Level 1).
Technical Context
The ES1BH employs a glass passivated silicon junction optimized for high-efficiency switching in DC-DC converters and automotive lighting. Its super fast recovery (trr ≤ 35 ns) minimizes switching losses during flyback and clamp operations.
Designed as a single-die, unidirectional device with cathode-band polarity indication, it supports automated placement and meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements in its DO-214AC molded package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - maximum non-repetitive reverse blocking voltage before breakdown |
| IF | 1 A - continuous average forward current at TL = 75°C |
| IFSM | 30 A - surge current handling for 8.3 ms half-sine, critical for inductive load turn-off |
| trr | 35 ns - reverse recovery time at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; enables >1 MHz switching |
| VF | 0.95 V - forward voltage drop at IF = 1 A, TJ = 25°C; determines conduction loss in power path |
| RθJL | 35 °C/W - junction-to-lead thermal resistance; defines heat transfer efficiency to PCB copper |
| CJ | 16 pF - junction capacitance at 1 MHz, VR = 4 V; impacts high-frequency noise and EMI behavior |
Pinout & Package
Package: DO-214AC (SMA), surface-mount, matte tin-plated leads, polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of load or source in rectification path |
| Cathode | Forward current exit / reverse blocking terminal | Marked with band; connects to higher-potential node; blocks up to 100 V reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Super fast recovery (trr ≤ 35 ns) | Reduces reverse recovery charge (Qrr) and associated switching losses in high-frequency SMPS |
| Glass passivated junction | Enhances long-term stability and humidity resistance vs. epoxy-passivated alternatives |
| Moisture sensitivity level 1 | Enables standard SMT reflow without baking; eliminates pre-conditioning overhead in production |
| Halogen-free (IEC 61249-2-21) | Complies with environmental regulations for automotive and industrial end equipment |
Applications
| DC-DC Converter | Automotive Lighting |
|---|---|
Use Scenario: Secondary-side synchronous rectification in isolated buck-boost or flyback converters operating at 300–500 kHz. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current path during high-side switch off-time. Use Value: 0.95 V VF and 35 ns trr reduce conduction and switching losses, improving overall converter efficiency by ~1.2% at 1A load. | Use Scenario: LED driver output stage in headlamp or DRL modules with PWM dimming and transient suppression. IC Role / Device Role / Timing Role: Snubber diode clamping inductive kickback from relay or motor drivers. Use Value: AEC-Q101 qualification and 150°C TJMAX ensure operation under hood temperatures up to 125°C ambient. |
| Snubber Circuit | Freewheeling Application |
Use Scenario: RCD snubber network across MOSFETs in automotive power supplies subject to load dump transients. IC Role / Device Role / Timing Role: Fast-recovery clamp diode absorbing energy during voltage spikes. Use Value: 35 ns trr prevents reverse conduction overlap with MOSFET turn-on, avoiding shoot-through risk. | Use Scenario: Inductive load flyback protection in seat control, window lift, or HVAC actuators. IC Role / Device Role / Timing Role: Unidirectional freewheeling path for coil current decay after switch deactivation. Use Value: 30 A IFSM withstands repeated inrush surges; DO-214AC package allows compact layout near motor driver ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar super fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-1EWH01-M3/5AT | VRRM = 100 V, trr = 35 ns, VF = 0.93 V @ 1 A - nearly identical electrical specs; same DO-214AC package | No AEC-Q101 qualification; rated for commercial/industrial only | Select for cost-sensitive non-automotive designs where automotive qualification is not required |
| ON Semiconductor MUR110RLG | VRRM = 100 V, trr = 50 ns, VF = 0.98 V @ 1 A - slower recovery, slightly higher VF, same package | Not AEC-Q101 qualified; higher Qrr increases switching loss in >300 kHz designs | Acceptable for lower-frequency (<200 kHz) freewheeling where trr margin is sufficient |
Compared with VS-1EWH01-M3/5AT and MUR110RLG, the ES1BH provides AEC-Q101 assurance and tighter trr/VF consistency for automotive-grade 100V rectification-critical when system-level reliability and thermal margin under transient loads are prioritized.
Availability
ES1BH is available at Aetrix Electronics and suitable for automotive lighting, DC-DC converter secondary-side rectification, and snubber circuit design requiring stable component supply and traceable sourcing.
Supply support for ES1BH 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 automotive, industrial, and consumer markets since 1979.
The ES1xH series was developed specifically for AEC-Q101-compliant, high-reliability surface-mount rectification in space-constrained automotive subsystems demanding fast recovery, low VF, and robust thermal performance.
FAQ
What is the maximum junction temperature rating for ES1BH?
The ES1BH has a maximum junction temperature (TJMAX) of +150°C, with an operational storage temperature range of –55°C to +150°C. This rating supports deployment in under-hood automotive environments where ambient temperatures may reach 125°C, provided thermal design maintains junction temperature within limit using the specified RθJL = 35°C/W path.
Is ES1BH suitable for use in AEC-Q101-compliant automotive systems?
Yes, ES1BH is explicitly qualified to AEC-Q101 standards, covering stress tests including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing. This makes ES1BH appropriate for safety-critical automotive functions such as body control modules and lighting drivers where component reliability is mandated.
What is the reverse recovery time (trr) specification for ES1BH and how is it measured?
The ES1BH reverse recovery time is specified as ≤35 ns under test conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is measured per JEDEC standard test methods and reflects the device's ability to transition rapidly from conduction to blocking state-key for minimizing switching losses in high-frequency power converters.
Does ES1BH have halogen-free and RoHS-compliant construction?
Yes, ES1BH uses halogen-free molding compound compliant with IEC 61249-2-21 and is fully RoHS-compliant. The device also meets J-STD-020 moisture sensitivity level 1, enabling direct placement into standard reflow profiles without preconditioning-a benefit for high-volume automotive manufacturing lines.
What package type and marking code does ES1BH use?
ES1BH is housed in the DO-214AC (SMA) surface-mount package with matte tin-plated leads. Its marking code is "ES1B", laser-printed on the cathode-banded surface, consistent with Taiwan Semiconductor's standardized coding for the ES1xH family across voltage grades.
ES1BH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AC, SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 100 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 100 V
- Capacitance @ Vr, F:
- 16pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES1BH FAQ
1.How can I place an order for ES1BH through Aetrix?
Please submit a Request for Quotation (RFQ) for ES1BH 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 ES1BH reliable?
The price and inventory of ES1BH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES1BH is usually 5 days.
3.What payment methods are accepted for ES1BH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES1BH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES1BH?
ES1BH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES1BH 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 ES1BH?
For technical support, including ES1BH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES1BH requirements.
6.How does Aetrix verify that ES1BH is sourced from the original manufacturer or authorized distributors?
All ES1BH 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 ES1BH meets industry standards.
7.What is the process for return or replacement of ES1BH?
All ES1BH units undergo pre-shipment inspection (PSI). If there is an issue with ES1BH, 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 ES1BH part is unused and in its original packaging.
Return procedure for ES1BH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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