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Taiwan Semiconductor Corporation HER103GH
- Part No.:
- HER103GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
HER103GH.pdf
- Description:
- 50NS, 1A, 200V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:5,032
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Product details
Overview
HER103GH from Taiwan Semiconductor is a high-efficiency, AEC-Q101-qualified silicon rectifier diode in DO-204AL (DO-41) package, rated for 200 V repetitive peak reverse voltage (VRRM), 1 A average forward current (IF), and 30 A non-repetitive surge current (IFSM). It delivers low 1.0 V forward voltage at 1 A and 25°C, with 50 ns reverse recovery time and 15 pF junction capacitance - optimized for DC/DC converters and freewheeling paths in automotive and industrial power supplies.
For engineers reviewing the HER103GH datasheet, HER103GH pinout, HER103GH application, or HER103GH equivalent, key selection criteria include its AEC-Q101 qualification, 200 V VRRM, 1.0 V VF @ 1 A, 50 ns trr, and DO-41 mechanical compatibility - critical for high-reliability 12–48 V automotive subsystems and compact switching power stages.
Technical Context
This device is a single-die, glass-passivated, planar-junction silicon rectifier engineered for fast recovery and low conduction loss. Its 50 ns reverse recovery time and 15 pF junction capacitance support operation in high-frequency switching topologies up to several hundred kHz, while the 1.0 V forward voltage minimizes I²R losses at 1 A continuous load.
The HER103GH operates across –55°C to +150°C junction temperature range and features pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Its DO-204AL package provides UL 94V-0 flammability rating and cathode-band polarity marking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - supports 24 V automotive systems with ≥2× safety margin against transients |
| IF | 1 A continuous - suitable for low-to-medium power DC/DC output stages and bias rails |
| VF @ 1 A, 25°C | 1.0 V - reduces conduction loss to 1.0 W at full load, easing thermal design |
| trr | 50 ns - enables efficient operation in 100–500 kHz SMPS without excessive switching loss |
| CJ @ 1 MHz, 4 V | 15 pF - limits capacitive coupling noise in high dv/dt gate-drive or snubber circuits |
| IFSM (8.3 ms) | 30 A - withstands cold-crank surges and inrush currents in vehicle electronics |
| TJ max | +150°C - allows use in under-hood environments without derating below 1 A |
Pinout & Package
HER103GH uses the standard DO-204AL (DO-41) axial-leaded package with cathode indicated by a band on the body. Leads are pure tin-plated and solderable per J-STD-002. No internal pin numbering applies - it is a two-terminal device with anode and cathode terminals only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Positive input terminal | Connects to higher-potential node (e.g., switch node in buck converter or transformer secondary) |
| Cathode (banded end) | Output / current sink terminal | Delivers rectified current to output capacitor or load; polarity must be observed to prevent reverse breakdown |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per stress test requirements |
| Glass passivated junction | Enhances moisture resistance and long-term stability of reverse leakage (<5 µA @ 25°C) |
| Low VF (1.0 V @ 1 A) | Reduces power dissipation by ~25% vs. standard 1N400x series at same current |
| Fast trr = 50 ns | Minimizes reverse recovery charge (Qrr) and associated switching loss in hard-switched topologies |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Automotive DC/DC Converters | Industrial Switch-Mode Power Supplies |
|---|---|
Use Scenario: Step-down conversion from 12 V or 24 V battery to 3.3 V/5 V MCU rails in engine control units and ADAS modules. IC Role / Device Role / Timing Role: Output rectifier in synchronous or asynchronous buck topology, handling continuous 1 A load with transient tolerance. Use Value: HER103GH's 200 V VRRM and AEC-Q101 rating ensure robustness against load-dump spikes (up to 60 V), while 1.0 V VF improves efficiency over legacy rectifiers. | Use Scenario: Secondary-side rectification in 24 V input, 12 V/1 A isolated flyback or forward converters for PLC I/O modules. IC Role / Device Role / Timing Role: Freewheeling diode in active-clamp or RCD-snubber networks, clamping leakage inductance energy. Use Value: 50 ns trr and 30 A IFSM allow clean energy recycling during high-frequency switching without oscillation or voltage overshoot. |
| LED Driver Freewheeling Paths | AC-DC Auxiliary Supply Rectification |
Use Scenario: Flyback diode across inductive LED driver chokes in constant-current streetlight drivers. IC Role / Device Role / Timing Role: Freewheeling path during MOSFET off-time, conducting stored choke energy back to input or output. Use Value: HER103GH's low VF and fast trr reduce conduction loss and minimize voltage ringing, improving EMI performance and LED current regulation. | Use Scenario: Input bridge or auxiliary winding rectifier in offline AC-DC adapters powering microcontrollers and sensors. IC Role / Device Role / Timing Role: High-voltage rectifier converting 120/230 V AC-derived windings to low-voltage DC bias rails. Use Value: 200 V VRRM safely handles 170 V peak AC waveforms with margin; DO-41 package enables through-hole mounting in cost-sensitive consumer designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06S | 600 V VRRM, 1.05 V VF @ 1 A, 55 ns trr, TO-220AC package | Higher voltage rating but larger footprint and higher thermal resistance (RθJA = 70°C/W) | Prefer when >400 V blocking is required or heatsinking is available; not drop-in for DO-41 layouts |
| ON Semi MUR120E | 200 V VRRM, 1.15 V VF @ 1 A, 60 ns trr, DO-41 package, no AEC-Q101 | Same package and voltage rating but lacks automotive qualification and has higher VF/trr | Select for cost-sensitive industrial use where AEC-Q101 is not mandated; requires validation for automotive deployment |
Compared with STTH1L06S and MUR120E, HER103GH uniquely combines AEC-Q101 qualification, DO-41 form factor, 200 V rating, and best-in-class 1.0 V VF/50 ns trr - making it optimal for space-constrained, high-reliability 24 V automotive power stages where qualification and efficiency are jointly critical.
Availability
HER103GH is available at Aetrix Electronics and suitable for automotive infotainment power supplies, industrial sensor interface modules, and LED lighting drivers requiring stable component supply, long-lifecycle assurance, and AEC-Q101 compliance.
Supply support for HER103GH 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 power rectifiers, TVS diodes, and MOSFETs for automotive and industrial markets.
The HER10xG family was designed specifically for high-efficiency, high-reliability rectification in automotive-grade DC/DC converters and switching power supplies - emphasizing fast recovery, low forward drop, and rigorous qualification to AEC-Q101.
FAQ
What is the peak repetitive reverse voltage rating of HER103GH?
The HER103GH has a peak repetitive reverse voltage (VRRM) rating of 200 V. This value is confirmed in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version L2104), and defines the maximum allowable reverse-biased voltage the device can block continuously without breakdown. It is critical for selecting appropriate safety margins in 24 V automotive and 48 V industrial systems.
Is HER103GH qualified to AEC-Q101 standards?
Yes, HER103GH is explicitly AEC-Q101 qualified, as indicated by the "H" suffix in its ordering code and confirmed in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing - validating its suitability for automotive under-hood and chassis applications.
What is the forward voltage drop of HER103GH at 1 A and 25°C?
The forward voltage drop (VF) of HER103GH is 1.0 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) and represents typical conduction loss - enabling accurate thermal modeling and efficiency calculation in buck or flyback output stages.
Does HER103GH have a specified reverse recovery time?
Yes, HER103GH has a maximum reverse recovery time (trr) of 50 ns, tested at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This parameter is documented in the Electrical Specifications table and confirms its classification as a high-speed, high-efficiency rectifier suitable for switching frequencies up to 500 kHz.
What package type does HER103GH use, and are its leads lead-free?
HER103GH uses the DO-204AL (DO-41) axial-leaded package with pure tin-plated leads compliant with J-STD-002 solderability and RoHS Directive 2011/65/EU. The leads are lead-free and halogen-free per IEC 61249-2-21, and the molding compound meets UL 94V-0 flammability rating - supporting automated through-hole assembly and environmental compliance.
HER103GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- 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:
- 1 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 200 V
- Capacitance @ Vr, F:
- 15pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HER103GH FAQ
1.How can I place an order for HER103GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HER103GH 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 HER103GH reliable?
The price and inventory of HER103GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER103GH is usually 5 days.
3.What payment methods are accepted for HER103GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER103GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HER103GH?
HER103GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HER103GH 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 HER103GH?
For technical support, including HER103GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER103GH requirements.
6.How does Aetrix verify that HER103GH is sourced from the original manufacturer or authorized distributors?
All HER103GH 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 HER103GH meets industry standards.
7.What is the process for return or replacement of HER103GH?
All HER103GH units undergo pre-shipment inspection (PSI). If there is an issue with HER103GH, 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 HER103GH part is unused and in its original packaging.
Return procedure for HER103GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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