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Taiwan Semiconductor Corporation HER107GH
- Part No.:
- HER107GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
HER107GH.pdf
- Description:
- 75NS, 1A, 800V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:4,978
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Product details
Overview
HER107GH from Taiwan Semiconductor is an AEC-Q101-qualified high-efficiency silicon rectifier diode in DO-204AL (DO-41) package, rated for 800 V repetitive peak reverse voltage (VRRM), 1 A average forward current (IF), and 30 A non-repetitive surge current (IFSM), used in automotive-grade DC/DC converters and freewheeling paths.
For engineers reviewing the HER107GH datasheet, HER107GH pinout, HER107GH application, or HER107GH equivalent, key selection criteria include its 800 V VRRM rating, 1.7 V max forward voltage at 1 A and 25°C, 75 ns reverse recovery time, AEC-Q101 qualification, and DO-41 mechanical compatibility with legacy through-hole power designs.
Technical Context
This device is a single-die, glass-passivated, planar-junction silicon rectifier optimized for high-speed switching and low conduction loss in automotive and industrial power conversion. Its 75 ns trr and 1.7 V VF support efficient operation in 50–500 kHz SMPS topologies where reverse recovery behavior directly impacts switching losses.
The HER107GH operates across –55°C to +150°C junction temperature range, features pure tin-plated leads compliant with J-STD-002, and meets JESD201 Class 2 whisker resistance - confirming suitability for under-hood automotive environments requiring long-term thermal and mechanical reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - supports input rectification in 400 VAC line-fed or 600 V bus systems with safety margin |
| IF | 1 A continuous - suitable for low-to-medium power DC/DC stages up to ~15 W at 12 V output |
| IFSM | 30 A (8.3 ms half-sine) - withstands inrush and transient overloads without bond-wire failure |
| VF (max) | 1.7 V @ 1 A, 25°C - limits conduction loss to ≤1.7 W per diode in continuous conduction mode |
| trr | 75 ns - enables stable operation in hard-switched flyback and forward converters up to 300 kHz |
| TJ max | +150°C - allows placement near hot components in engine control units or ADAS power modules |
| RθJA | 60°C/W - requires ≥0.5 cm² copper pour for thermal management at full IF in still air |
Pinout & Package
DO-204AL (DO-41) axial-leaded package with cathode band marking; lead finish: pure tin, solderable per J-STD-002; weight ≈0.330 g; UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck freewheel path) |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to output rail or positive bus; polarity must be observed to prevent catastrophic failure |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics including engine control, body electronics, and ADAS subsystems |
| Glass passivated junction | Prevents moisture ingress and surface leakage degradation under high humidity and thermal cycling |
| Low VF and fast trr combination | Reduces total power loss (conduction + switching) versus standard FR107 or 1N4007 in 100–300 kHz designs |
| JESD201 Class 2 whisker resistance | Eliminates tin whisker growth risk in long-life automotive applications (>15 years) |
| Halogen-free per IEC 61249-2-21 | Complies with automotive OEM material declarations and RoHS 3 requirements |
Applications
| Automotive DC/DC Converters | Industrial Switch-Mode Inverters |
|---|---|
Use Scenario: Step-down conversion from 12 V or 48 V battery to 3.3 V/5 V rails in vehicle infotainment ECUs. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck regulator output stage. Use Value: HER107GH's 800 V VRRM and 75 ns trr prevent voltage overshoot and reduce EMI during MOSFET turn-off in 200 kHz designs. | Use Scenario: Output rectification in 1 kW three-phase inverter auxiliary power supply. IC Role / Device Role / Timing Role: High-voltage output rectifier in flyback transformer secondary winding. Use Value: 30 A IFSM rating handles startup surges; 1.7 V VF minimizes heat generation at 1 A load, reducing heatsink size. |
| LED Driver Freewheeling | UPS Battery Charger Input Stage |
Use Scenario: Inductive current recirculation path in constant-current LED drivers for commercial lighting. IC Role / Device Role / Timing Role: Freewheeling diode across boost inductor during MOSFET off-time. Use Value: Fast 75 ns trr prevents cross-conduction losses and improves efficiency above 250 kHz switching frequency. | Use Scenario: AC input bridge rectification in online UPS battery charging circuit with PFC front-end. IC Role / Device Role / Timing Role: Primary-side rectifier handling 350 VDC intermediate bus with surge transients. Use Value: 800 V VRRM provides 1.5× margin over 560 V PFC output; AEC-Q101 qualification ensures reliability in 24/7 operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R08 | 800 V VRRM, 1 A IF, 75 ns trr, but not AEC-Q101 qualified; TO-220AC package | Requires PCB footprint change and lacks automotive qualification evidence | Select only for non-automotive industrial use where thermal performance via heatsink is prioritized |
| ON Semi MUR108E | 800 V VRRM, 1 A IF, 75 ns trr, AEC-Q101 qualified, same DO-41 package | Identical mechanical fit and qualification; VF = 1.75 V (max) vs. HER107GH's 1.7 V | Drop-in alternative with negligible VF penalty; verify date-code traceability for long-lifecycle programs |
Compared with STTH1R08 and MUR108E, HER107GH offers identical automotive qualification and DO-41 compatibility as MUR108E but with marginally lower VF, while STTH1R08 trades qualification for higher thermal dissipation capability in a different package.
Availability
HER107GH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial switch-mode inverters, and LED driver freewheeling applications requiring stable component supply with AEC-Q101 compliance and long-term sourcing assurance.
Supply support for HER107GH 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, high-efficiency rectification in automotive power systems and industrial SMPS where AEC-Q101 qualification, fast recovery, and thermal robustness are mandatory.
FAQ
What is the maximum junction temperature rating for HER107GH?
The HER107GH has a maximum junction temperature (TJ max) of +150°C, validated per AEC-Q101 stress testing. This rating enables reliable operation in under-hood automotive environments and high-ambient industrial enclosures. Derating curves in the official TSC datasheet show usable IF drops linearly above +75°C ambient, and HER107GH must be mounted on ≥0.5 cm² copper area to maintain TJ ≤150°C at full 1 A load in still air.
Is HER107GH pin-compatible with standard DO-41 rectifiers like 1N4007?
Yes, HER107GH uses the DO-204AL (DO-41) package with identical mechanical dimensions and lead spacing as 1N4007, allowing direct PCB footprint reuse. However, HER107GH is polarity-marked with a cathode band and requires correct orientation - unlike 1N4007, it is not interchangeable electrically due to its 800 V VRRM, 1.7 V VF, and 75 ns trr, which demand updated thermal and layout validation.
Does HER107GH meet halogen-free and RoHS requirements?
Yes, HER107GH complies with RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21, confirmed in TSC's L2104 datasheet revision. The molding compound contains no brominated flame retardants or chlorine-based additives, and the pure tin-plated leads satisfy J-STD-002 solderability standards - critical for automotive OEM material declarations and end-of-life recycling compliance.
What is the reverse recovery time (trr) specification for HER107GH?
The HER107GH has a maximum reverse recovery time (trr) of 75 ns, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is confirmed across the HER106G–HER108G group in the TSC datasheet and enables clean commutation in 200–300 kHz switching power supplies. Designers should reference Figure 6 in the datasheet for test circuit details and confirm layout parasitics do not degrade measured trr in final assembly.
Can HER107GH replace HER107G in existing designs?
Yes, HER107GH is a direct replacement for HER107G with identical electrical specs and DO-41 packaging, differing only by AEC-Q101 qualification and "H" suffix in ordering code. No PCB or schematic changes are needed. The "H" variant undergoes additional stress testing (HTGB, HTRB, TC, etc.) per AEC-Q101, making it suitable for automotive applications where HER107G is limited to commercial/industrial use.
HER107GH 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):
- 800 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 75 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 800 V
- Capacitance @ Vr, F:
- 10pF @ 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
HER107GH FAQ
1.How can I place an order for HER107GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HER107GH 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 HER107GH reliable?
The price and inventory of HER107GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER107GH is usually 5 days.
3.What payment methods are accepted for HER107GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER107GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HER107GH?
HER107GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HER107GH 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 HER107GH?
For technical support, including HER107GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER107GH requirements.
6.How does Aetrix verify that HER107GH is sourced from the original manufacturer or authorized distributors?
All HER107GH 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 HER107GH meets industry standards.
7.What is the process for return or replacement of HER107GH?
All HER107GH units undergo pre-shipment inspection (PSI). If there is an issue with HER107GH, 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 HER107GH part is unused and in its original packaging.
Return procedure for HER107GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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