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Taiwan Semiconductor Corporation ESH1DH
- Part No.:
- ESH1DH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
ESH1DH.pdf
- Description:
- 15NS, 1A, 200V, ULTRA FAST RECOV
- Quantity:
- Payment:
- Shipping:
Inventory:12,000
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Product details
Overview
ESH1DH from Taiwan Semiconductor is a 1 A, 200 V ultra-fast surface-mount rectifier diode in DO-214AC (SMA) package, featuring 15 ns reverse recovery time, 0.9 V max forward voltage at 1 A, and AEC-Q101 qualification for automotive-grade reliability-used in snubber networks and freewheeling paths in DC-DC converters.
For engineers reviewing the ESH1DH datasheet, ESH1DH pinout, ESH1DH application, or ESH1DH equivalent, key selection criteria include peak repetitive reverse voltage (200 V), surge current capability (30 A), junction temperature range (–55°C to +175°C), thermal resistance (RθJL = 35°C/W), and RoHS/halogen-free compliance for automotive and industrial power designs.
Technical Context
The ESH1DH operates as a single-die, unidirectional silicon rectifier with glass-passivated junction for enhanced moisture resistance and long-term stability under thermal cycling. Its ultra-fast recovery (trr ≤ 15 ns) minimizes switching losses in high-frequency power conversion topologies.
Designed for surface-mount assembly, the device uses matte tin-plated leads compliant with J-STD-002 solderability and meets JESD201 Class 2 whisker resistance. Polarity is marked by a cathode band on the DO-214AC body, and its UL 94V-0 molding compound supports reflow and automated handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum repetitive reverse blocking voltage before breakdown; defines usable input voltage headroom in flyback or boost snubbers |
| IF | 1 A continuous - average forward current rating at TL = 75°C; sets steady-state conduction capacity in freewheeling paths |
| IFSM | 30 A - non-repetitive surge current (8.3 ms half-sine); enables robustness against inductive turn-off transients |
| trr | 15 ns - reverse recovery time under IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A; critical for minimizing switching loss in >100 kHz converters |
| VF | ≤ 0.9 V at IF = 1 A, TJ = 25°C - low conduction loss improves efficiency in low-voltage, high-current output stages |
| RθJL | 35 °C/W - junction-to-lead thermal resistance; enables direct heat transfer to PCB copper for passive thermal management |
Pinout & Package
Package: DO-214AC (SMA), molded plastic case with cathode band marking; 0.060 g weight; UL 94V-0 rated compound; matte tin-plated leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of inductive load or switch node; requires adequate copper area for thermal dissipation |
| Cathode | Forward current exit / reverse blocking terminal | Marked by visible band; ties to higher-potential rail or output capacitor; determines polarity-sensitive placement in layout |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements including HTGB, TC, HTRB, and UHAST |
| Glass passivated junction | Prevents moisture ingress and metallization corrosion, extending lifetime in humid or under-hood environments |
| Ultra-fast trr ≤ 15 ns | Reduces reverse recovery charge (Qrr) and associated switching loss in high-frequency SMPS designs |
| DO-214AC (SMA) package | Low-profile, surface-mountable outline compatible with standard pick-and-place equipment and reflow profiles |
| Moisture sensitivity level 1 | No dry-pack or baking required prior to assembly-reduces manufacturing overhead and handling risk |
Applications
| DC-DC Converter Snubber | Automotive LED Driver Freewheeling |
|---|---|
Use Scenario: Placed across MOSFET drain-source in flyback or buck-boost converters to clamp voltage spikes during switch turn-off. IC Role / Device Role / Timing Role: Ultra-fast rectifier providing low-loss, low-Qrr clamping path during nanosecond-scale voltage transitions. Use Value: 200 V VRRM and 15 ns trr limit voltage overshoot while minimizing energy dissipation in the snubber network. | Use Scenario: Used as freewheeling diode in constant-current LED driver circuits powering automotive cabin or exterior lighting. IC Role / Device Role / Timing Role: Conducts inductive current when main switch opens, preventing voltage runaway across LED string. Use Value: AEC-Q101 qualification and 175°C TJMAX ensure reliability in thermally constrained vehicle environments. |
| Car Lighting Power Supply | Industrial AC-DC Auxiliary Rail |
Use Scenario: Rectifies low-power auxiliary winding output in isolated LED driver transformers for headlamp control modules. IC Role / Device Role / Timing Role: Single-diode rectifier converting transformer secondary AC to regulated DC bias for gate drivers or microcontrollers. Use Value: 0.9 V VF reduces conduction loss in low-voltage (<12 V) auxiliary rails, improving overall system efficiency. | Use Scenario: Provides isolated, low-noise DC bias for control ICs in industrial AC-DC power supplies with wide input ranges. IC Role / Device Role / Timing Role: Output rectifier in auxiliary flyback or forward converter stage delivering stable 5–15 V bias rails. Use Value: RθJL = 35°C/W allows direct thermal coupling to PCB ground plane, eliminating need for heatsinks in space-constrained enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-fast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R02FL | 1 A, 200 V, trr = 25 ns, VF = 0.95 V, DO-214AC | Slower recovery increases switching loss above 200 kHz; same footprint but higher Qrr | Acceptable where frequency < 150 kHz or thermal margin exists |
| ON Semi MUR120 | 1 A, 200 V, trr = 35 ns, VF = 1.05 V, DO-41 axial lead | Through-hole package requires manual or wave soldering; not AEC-Q101 qualified | Suitable only for non-automotive, cost-sensitive prototyping |
Compared with STTH1R02FL and MUR120, the ESH1DH delivers superior high-frequency performance (15 ns trr) and automotive qualification in a surface-mount package-making it optimal for production-grade DC-DC snubbers and LED driver freewheeling where reliability and efficiency are prioritized over lowest BOM cost.
Availability
ESH1DH is available at Aetrix Electronics and suitable for DC-DC converter snubbers, automotive LED driver freewheeling, and industrial auxiliary power supply designs requiring stable component supply, AEC-Q101 compliance, and consistent DO-214AC packaging.
Supply support for ESH1DH 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 ESH1xH series belongs to TSC's AEC-Q101-qualified ultra-fast rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in automotive lighting, engine control, and ADAS subsystems.
FAQ
What is the peak repetitive reverse voltage rating for ESH1DH?
The ESH1DH has a peak repetitive reverse voltage (VRRM) rating of 200 V, verified per Taiwan Semiconductor's A2102 datasheet. This defines the maximum reverse-biased voltage the diode can block continuously without avalanche breakdown. It is critical for selecting appropriate voltage margin in snubber or freewheeling applications where transient spikes may occur. The ESH1DH must not be operated beyond this rating under any condition.
Is ESH1DH qualified for automotive applications?
Yes, the ESH1DH is AEC-Q101 qualified per its official datasheet (Version A2102), confirming compliance with stress tests including high-temperature reverse bias (HTRB), temperature cycling (TC), and unbiased highly accelerated stress testing (UHAST). This makes ESH1DH suitable for under-hood and cabin automotive systems such as LED drivers and power supply auxiliary rails where reliability under thermal and humidity stress is mandatory.
What is the reverse recovery time of ESH1DH and how is it measured?
The ESH1DH has a maximum reverse recovery time (trr) of 15 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A, per the A2102 datasheet. This parameter reflects the time required for the diode to transition from forward conduction to reverse blocking state. Its low value directly reduces switching losses in high-frequency DC-DC converters where the ESH1DH is commonly deployed.
What package type does ESH1DH use and what are its mechanical features?
The ESH1DH uses the DO-214AC (SMA) surface-mount package, with dimensions conforming to JEDEC standards. Key mechanical features include a UL 94V-0 rated molding compound, matte tin-plated leads compliant with J-STD-002, polarity indicated by a cathode band, and a weight of approximately 0.060 g. Its low profile supports automated placement and reflow soldering without special handling.
Does ESH1DH have halogen-free and RoHS compliance documentation?
Yes, the ESH1DH is both RoHS compliant and halogen-free per IEC 61249-2-21, as stated in the A2102 datasheet. These environmental qualifications are confirmed in the "Features" section and supported by Taiwan Semiconductor's material declarations. This ensures compatibility with modern electronics manufacturing processes and regulatory requirements for automotive and industrial end products.
ESH1DH 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):
- 200 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 900 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 15 ns
- Current - Reverse Leakage @ Vr:
- 1 µA @ 200 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 ~ 175°C
ESH1DH FAQ
1.How can I place an order for ESH1DH through Aetrix?
Please submit a Request for Quotation (RFQ) for ESH1DH 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 ESH1DH reliable?
The price and inventory of ESH1DH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ESH1DH is usually 5 days.
3.What payment methods are accepted for ESH1DH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ESH1DH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ESH1DH?
ESH1DH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ESH1DH 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 ESH1DH?
For technical support, including ESH1DH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ESH1DH requirements.
6.How does Aetrix verify that ESH1DH is sourced from the original manufacturer or authorized distributors?
All ESH1DH 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 ESH1DH meets industry standards.
7.What is the process for return or replacement of ESH1DH?
All ESH1DH units undergo pre-shipment inspection (PSI). If there is an issue with ESH1DH, 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 ESH1DH part is unused and in its original packaging.
Return procedure for ESH1DH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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