Taiwan Semiconductor Corporation ES1GLH
- Part No.:
- ES1GLH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- SOD-123
- Datasheet:
-
ES1GLH.pdf
- Description:
- 35NS, 1A, 400V, SUPER FAST RECOV
- Quantity:
- Payment:

- Shipping:

Inventory:3,112
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Product details
Overview
ES1GLH from Taiwan Semiconductor is a 1A, 400V repetitive peak reverse voltage super fast surface-mount rectifier diode in Sub SMA package, with 1.30V forward voltage at 1A/25°C, 35ns reverse recovery time, and AEC-Q101 qualification for automotive power conversion.
For engineers reviewing the ES1GLH datasheet, ES1GLH pinout, ES1GLH application, or ES1GLH equivalent, key selection criteria include VRRM = 400V, VF = 1.30V @ 1A, trr = 35ns, TJ max = 150°C, and Sub SMA package compatibility with automated SMT assembly.
Technical Context
The ES1GLH is a single-die, glass-passivated silicon junction rectifier optimized for high-speed switching in DC-DC converters and freewheeling paths. Its 35ns reverse recovery time and low 1.30V forward drop at rated current enable efficient operation under high-frequency, moderate-current conditions.
Thermal performance is defined by RθJL = 35°C/W and RθJA = 85°C/W, supporting reliable operation up to 150°C junction temperature. The device meets J-STD-020 moisture sensitivity level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum non-repetitive reverse voltage the device blocks reliably in circuit |
| IF | 1 A - Continuous average forward current rating at TA = 25°C |
| VF @ 1A, 25°C | 1.30 V - Forward conduction loss impacting efficiency in power path |
| trr | 35 ns - Reverse recovery time determining minimum switching frequency limit and EMI behavior |
| TJ max | 150 °C - Maximum allowable junction temperature defining thermal derating envelope |
| RθJL | 35 °C/W - Thermal resistance from junction to lead, critical for PCB copper pour design |
| IR @ 400V, 25°C | 5 µA - Leakage current affecting standby power and snubber stability |
Pinout & Package
Package: Sub SMA - Low-profile, surface-mount plastic package with matte tin-plated leads, UL 94V-0 molding compound, cathode polarity indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of load or switch node in freewheeling path |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; connects to higher-potential rail or switch drain/source in flyback/freewheeling topologies |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Glass passivated junction | Enhanced environmental robustness against humidity and contamination in harsh under-hood environments |
| Sub SMA package | Enables high-density layout and compatibility with standard 0.5mm pitch SMT reflow profiles |
| Moisture sensitivity level 1 | No dry-baking required prior to reflow, reducing manufacturing overhead and handling risk |
| Halogen-free (IEC 61249-2-21) | Complies with RoHS and automotive ELV directive requirements for material content |
Applications
| DC–DC Converter | Automotive Lighting |
|---|---|
Use Scenario: Secondary-side synchronous rectification or output freewheeling in 12V–48V automotive buck/boost converters. IC Role / Device Role / Timing Role: Power rectifier providing unidirectional current path with minimal conduction loss and fast turn-off. Use Value: 1.30V VF and 35ns trr reduce switching losses and improve efficiency >92% at 250kHz operation. | Use Scenario: LED driver output stage in headlamp or DRL modules requiring transient robustness and thermal stability. IC Role / Device Role / Timing Role: Freewheeling diode across inductive LED current regulator or boost inductor. Use Value: 150°C TJ max and AEC-Q101 qualification ensure uninterrupted operation during engine bay thermal transients. |
| Snubber Network | Freewheeling Circuit |
Use Scenario: RC snubber across MOSFETs or IGBTs in motor control inverters to suppress voltage spikes. IC Role / Device Role / Timing Role: Fast-recovery clamp diode enabling rapid energy dissipation during switching transitions. Use Value: 35ns trr minimizes tail current, reducing snubber power dissipation and improving clamping accuracy. | Use Scenario: Inductive load protection in solenoid drivers, fuel injectors, or HVAC actuators. IC Role / Device Role / Timing Role: Flyback diode providing safe current recirculation path when inductive load is de-energized. Use Value: 30A IFSM rating withstands high-energy inductive kickback without failure under pulse conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06S | VRRM = 600V, VF = 1.15V @ 1A, trr = 50ns, DO-214AA package | Higher voltage rating but slower recovery; less suitable for >200kHz switching | Prefer for 600V systems where speed is secondary to blocking capability |
| MBR140SFT1G | Schottky structure, VF = 0.52V @ 1A, no reverse recovery, VR = 40V max | Lower VF but limited to ≤40V applications; unsuitable for 400V bus use | Select only for low-voltage, ultra-high-efficiency designs where VRRM ≤ 40V |
Compared with STTH1L06S and MBR140SFT1G, the ES1GLH uniquely balances 400V blocking, 1.30V conduction loss, and 35ns speed in an AEC-Q101-qualified Sub SMA package-making it optimal for 12–48V automotive DC–DC and freewheeling roles where voltage, speed, and qualification converge.
Availability
ES1GLH is available at Aetrix Electronics and suitable for automotive lighting, DC–DC converter design, and freewheeling circuit implementation requiring stable component supply and long-term production continuity.
Supply support for ES1GLH 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, MOSFETs, and bipolar transistors.
The ES1xLH series is part of TSC's AEC-Q101-qualified Super Fast Rectifier product line, engineered specifically for automotive power conversion, lighting, and industrial switching applications demanding high reliability and thermal resilience.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for ES1GLH?
The ES1GLH has a maximum repetitive peak reverse voltage (VRRM) of 400 V, as specified in the absolute maximum ratings table. This value defines the highest reverse voltage the device can block repeatedly without breakdown under normal operating conditions. Exceeding 400 V may cause irreversible avalanche failure. The ES1GLH is part of the ES1ALH–ES1JLH family, where 'G' denotes the 400 V rating per the marking code EGL.
What is the forward voltage drop of ES1GLH at 1A and 25°C?
The forward voltage drop (VF) of the ES1GLH is 1.30 V at 1 A forward current and 25°C junction temperature, per the electrical specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) to minimize self-heating effects. At higher temperatures or currents, VF decreases slightly due to negative temperature coefficient of silicon PN junctions.
Is ES1GLH qualified for automotive applications?
Yes, the ES1GLH is AEC-Q101 qualified, confirming its suitability for automotive electronic systems. This qualification includes stress tests such as high-temperature reverse bias (HTRB), temperature cycling, and mechanical shock. The device's Sub SMA package, moisture sensitivity level 1, and halogen-free construction further support compliance with automotive manufacturing and environmental standards.
What is the reverse recovery time (trr) of ES1GLH and how is it tested?
The reverse recovery time (trr) of the ES1GLH is 35 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, as stated in the electrical specifications. This parameter reflects the time required for the device to transition from forward conduction to reverse blocking. The test uses a standardized half-sine waveform and is critical for evaluating switching loss and EMI in high-frequency power circuits using ES1GLH.
What package type does ES1GLH use and what are its key mechanical features?
The ES1GLH uses the Sub SMA package-a low-profile surface-mount variant of the SMA outline. Key mechanical features include matte tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 flammability-rated molding compound, cathode polarity indicated by a visible band, and a typical weight of 0.019 g. Its dimensions and pad layout align with IPC-7351B recommendations for automated placement.
ES1GLH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- SOD-123
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 400 V
- Capacitance @ Vr, F:
- 8pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Sub SMA
- Operating Temperature - Junction:
- -55°C ~ 150°C
ES1GLH FAQ
1.How can I place an order for ES1GLH through Aetrix?
Please submit a Request for Quotation (RFQ) for ES1GLH 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 ES1GLH reliable?
The price and inventory of ES1GLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ES1GLH is usually 5 days.
3.What payment methods are accepted for ES1GLH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ES1GLH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ES1GLH?
ES1GLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ES1GLH 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 ES1GLH?
For technical support, including ES1GLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ES1GLH requirements.
6.How does Aetrix verify that ES1GLH is sourced from the original manufacturer or authorized distributors?
All ES1GLH 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 ES1GLH meets industry standards.
7.What is the process for return or replacement of ES1GLH?
All ES1GLH units undergo pre-shipment inspection (PSI). If there is an issue with ES1GLH, 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 ES1GLH part is unused and in its original packaging.
Return procedure for ES1GLH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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