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Taiwan Semiconductor Corporation HER102GH
- Part No.:
- HER102GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
HER102GH.pdf
- Description:
- 50NS, 1A, 100V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:4,812
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Product details
Overview
HER102GH from Taiwan Semiconductor is a 1A, 100V high-efficiency glass-passivated rectifier diode optimized for switching-mode power supplies and freewheeling applications. It features low forward voltage (1.0 V at 1 A, 25°C), 30 A surge capability, 50 ns reverse recovery time, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the HER102GH datasheet, HER102GH pinout, HER102GH application, or HER102GH equivalent, key selection criteria include repetitive peak reverse voltage (100 V), thermal resistance (60 °C/W junction-to-ambient), RoHS/halogen-free compliance, and DO-41 package compatibility with standard through-hole assembly processes.
Technical Context
This device is a single-die, silicon planar epitaxial high-efficiency rectifier with glass passivation for enhanced moisture and contamination resistance. Its fast recovery (50 ns) and low VF support high-frequency operation in DC–DC converters and SMPS secondary-side rectification.
The HER102GH operates across –55°C to +150°C junction temperature range and delivers stable performance under transient surge conditions (8.3 ms half-sine, 30 A). Its 15 °C/W junction-to-case thermal resistance enables effective heat transfer in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 100 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in flyback/freewheeling circuits |
| IF | 1 A - Continuous average forward current; determines steady-state power handling without derating |
| VF | 1.0 V @ 1 A, 25°C - Low conduction loss improves efficiency in high-duty-cycle switching applications |
| trr | 50 ns - Fast reverse recovery minimizes switching losses and EMI in >100 kHz converters |
| IFSM | 30 A - Peak non-repetitive surge current rating; supports inrush and fault-current robustness |
| RθJA | 60 °C/W - Thermal resistance from junction to ambient; informs heatsinking requirements on FR-4 boards |
| IR | 5 µA @ 25°C - Low leakage ensures minimal standby power loss in battery-backed systems |
Pinout & Package
HER102GH uses the DO-204AL (DO-41) axial-leaded package with cathode band marking. Leads are pure tin-plated and solderable per J-STD-002; weight ≈ 0.330 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry | Connects to lower-potential node (e.g., switch node in buck converter freewheel path) |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connects to output rail; polarity marking prevents misassembly in high-reliability builds |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements (HTOL, TC, HAST) |
| Glass passivated junction | Eliminates need for conformal coating in humid environments; extends field life in industrial controls |
| Low VF (1.0 V) | Reduces I²R losses by ~15% vs. standard 1N400x series at 1 A, improving thermal margin |
| 50 ns trr | Enables use in 200–500 kHz SMPS designs where slower diodes cause excessive ringing and loss |
| RoHS & halogen-free | Complies with IEC 61249-2-21; supports green manufacturing and end-of-life recycling mandates |
Applications
| DC–DC Converter Secondary Rectification | Automotive LED Driver Freewheel Path |
|---|---|
Use Scenario: Used as output rectifier in isolated flyback or forward converters delivering 5–24 V at ≤1 A. IC Role / Device Role / Timing Role: Unidirectional current valve enabling energy transfer from transformer secondary to output capacitor. Use Value: 1.0 V VF and 50 ns trr reduce conduction and switching losses, increasing overall converter efficiency by 2–3% at 250 kHz. | Use Scenario: Freewheeling diode across inductive LED driver coils in automotive cabin lighting modules. IC Role / Device Role / Timing Role: Provides low-loss current recirculation path during MOSFET off-time to maintain LED current continuity. Use Value: AEC-Q101 qualification and 150°C TJ max ensure reliable operation under hood-temperature extremes (–40°C to +125°C ambient). |
| Industrial SMPS Input Bridge Leg | AC–DC Adapter Output Stage |
Use Scenario: Single-diode leg in discrete bridge rectifier for 24 V/48 V industrial power supplies. IC Role / Device Role / Timing Role: Conducts half-wave rectified AC input during positive half-cycles; blocks reverse voltage during negative half-cycles. Use Value: 30 A IFSM withstands line surges and inrush transients common in factory-floor mains distribution. | Use Scenario: Output rectifier in low-cost wall adapters powering consumer IoT devices. IC Role / Device Role / Timing Role: Converts transformer secondary AC to regulated DC; placed after filtering stage. Use Value: DO-41 package enables automated axial insertion; halogen-free compound meets regional environmental compliance for global shipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06 | Same IF (1 A), higher VRRM (600 V), VF = 1.15 V @ 1 A, trr = 60 ns, TO-220AC package | Higher voltage rating suits universal-input AC–DC; larger package requires different footprint | Choose STTH1R06 only when >100 V blocking is required and board space allows TO-220 mounting |
| ON Semi MUR110E | Same VRRM (100 V), IF = 1 A, VF = 0.92 V @ 1 A, trr = 75 ns, DO-41 package, no AEC-Q101 | Lacks automotive qualification; slightly faster VF but slower recovery than HER102GH | Select MUR110E for cost-sensitive commercial power supplies where AEC-Q101 is not mandated |
Compared with STTH1R06 and MUR110E, HER102GH uniquely combines AEC-Q101 qualification, DO-41 form factor, 100 V rating, and 50 ns trr-making it optimal for space-constrained automotive and industrial SMPS where reliability and speed are jointly critical.
Availability
HER102GH is available at Aetrix Electronics and suitable for DC–DC converters, automotive LED drivers, and industrial switching-mode power supplies requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for HER102GH 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 HER101G–HER108G family was designed specifically for high-reliability rectification in automotive power systems and ruggedized industrial SMPS, emphasizing AEC-Q101 compliance, thermal robustness, and fast recovery performance.
FAQ
What is the maximum junction temperature rating for HER102GH?
The HER102GH has a maximum junction temperature (TJ MAX) of +150°C, verified per AEC-Q101 stress testing. This rating allows continuous operation in high-ambient environments such as engine compartments or enclosed industrial enclosures. Derating curves in the official TSC datasheet show usable current drops linearly above 75°C ambient, ensuring predictable thermal behavior in HER102GH-based designs.
Is HER102GH pin-compatible with standard DO-41 rectifiers like 1N4007?
Yes, HER102GH uses the DO-204AL (DO-41) package with identical mechanical dimensions and lead spacing as 1N4007, enabling direct physical replacement. However, HER102GH offers significantly faster recovery (50 ns vs. >2 µs), lower VF (1.0 V vs. ~1.1 V), and AEC-Q101 qualification-so circuit-level validation is recommended before drop-in substitution in legacy 1N4007 designs.
Does HER102GH meet halogen-free requirements?
Yes, HER102GH complies with IEC 61249-2-21 for halogen-free materials. The molding compound contains no chlorine or bromine above threshold limits, and the device carries full RoHS 3 compliance documentation. This makes HER102GH suitable for export to EU, Japan, and other regions enforcing strict halogen restrictions in electronic assemblies.
What is the reverse recovery time (trr) specification for HER102GH?
The HER102GH has a typical reverse recovery time (trr) of 50 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is confirmed in TSC's L2104 datasheet and applies across the full operating temperature range (–55°C to +150°C). The fast trr directly reduces switching losses and EMI generation in high-frequency SMPS using HER102GH.
Can HER102GH be used in surface-mount designs?
No, HER102GH is exclusively offered in the axial-leaded DO-41 package and is not available in SMD variants. For surface-mount alternatives with similar electrical specs, consider TSC's SOD-123-packaged HER102GHS or ON Semi's SMB-package MUR110S. HER102GH requires through-hole mounting and wave or selective soldering processes.
HER102GH 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):
- 100 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 @ 100 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
HER102GH FAQ
1.How can I place an order for HER102GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HER102GH 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 HER102GH reliable?
The price and inventory of HER102GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER102GH is usually 5 days.
3.What payment methods are accepted for HER102GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER102GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HER102GH?
HER102GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HER102GH 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 HER102GH?
For technical support, including HER102GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER102GH requirements.
6.How does Aetrix verify that HER102GH is sourced from the original manufacturer or authorized distributors?
All HER102GH 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 HER102GH meets industry standards.
7.What is the process for return or replacement of HER102GH?
All HER102GH units undergo pre-shipment inspection (PSI). If there is an issue with HER102GH, 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 HER102GH part is unused and in its original packaging.
Return procedure for HER102GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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