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Taiwan Semiconductor Corporation HER208GH
- Part No.:
- HER208GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
HER208GH.pdf
- Description:
- 75NS, 2A, 1000V, HIGH EFFICIENT
- Quantity:
- Payment:
- Shipping:
Inventory:3,500
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Product details
Overview
HER208GH from Taiwan Semiconductor is a high-efficiency, AEC-Q101-qualified ultrafast recovery rectifier diode in DO-204AC (DO-15) package, rated for 2 A average forward current, 1000 V repetitive peak reverse voltage, and 75 ns reverse recovery time at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A - used in automotive-grade DC/DC converters and switching inverters.
For engineers reviewing the HER208GH datasheet, HER208GH pinout, HER208GH application, or HER208GH equivalent, key selection factors include its AEC-Q101 qualification, 1000 V VRRM rating, 75 ns trr, 1.7 V max VF at 2 A, and DO-15 mechanical compatibility with legacy through-hole power supplies and on-board freewheeling paths.
Technical Context
This device implements a single-die, glass-passivated PN junction optimized for high-speed switching in automotive and industrial power conversion. Its 75 ns reverse recovery time and low 1.7 V forward voltage drop at 2 A reduce conduction and switching losses in high-frequency topologies.
The HER208GH operates across –55°C to +150°C junction temperature range with 60°C/W junction-to-ambient thermal resistance. It delivers 60 A non-repetitive surge current capability (8.3 ms half-sine) and maintains <5 µA reverse leakage at 25°C and rated VR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports primary-side rectification in offline SMPS up to 800 VDC bus |
| IF(AV) | 2 A - continuous DC output current handling in compact 5–25 W converter designs |
| trr | 75 ns - enables operation up to ~500 kHz switching frequency with low switching loss |
| VF(max) | 1.7 V @ 2 A, 25°C - reduces conduction loss vs. standard FRDs; improves efficiency by ~1.2% at full load |
| IFSM | 60 A - withstands inrush and transient surges without failure in automotive cold-crank conditions |
| TJ(max) | +150°C - allows operation in under-hood environments without derating below 125°C ambient |
| CJ | 20 pF @ 1 MHz, 4 V - minimizes capacitive coupling noise in EMI-sensitive gate-drive or sensing circuits |
Pinout & Package
DO-204AC (DO-15) axial-leaded package with cathode band marking; leads are pure tin-plated, J-STD-002 solderable, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry point | Connects to lower-potential node (e.g., transformer secondary center-tap or switch node) |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connects to output rail or filter capacitor; blocks 1000 V reverse voltage during off-state |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive power electronics per stress test requirements (HTOL, TC, HAST, etc.) |
| Glass passivated junction | Enhances humidity resistance and long-term reliability in harsh under-hood environments |
| Ultrafast recovery (75 ns) | Reduces reverse recovery charge (Qrr), lowering EMI and MOSFET turn-on loss in synchronous rectifier stages |
| Low VF (1.7 V max) | Minimizes I²R heating in high-duty-cycle applications, enabling smaller heatsinking |
| RoHS & halogen-free | Complies with IEC 61249-2-21; suitable for automotive OEM supply chain traceability |
Applications
| Automotive DC/DC Converters | Industrial Switch-Mode Inverters |
|---|---|
Use Scenario: 12 V to 48 V bidirectional DC/DC converter in 48 V mild-hybrid vehicle architecture. IC Role / Device Role / Timing Role: Primary-side ultrafast rectifier in phase-shifted full-bridge topology. Use Value: 75 ns trr and 1000 V VRRM enable efficient high-frequency operation while surviving load-dump transients up to 60 V. | Use Scenario: Output rectification stage in 3 kW solar microinverter with 600 V DC input. IC Role / Device Role / Timing Role: Freewheeling diode across IGBTs in H-bridge output stage. Use Value: 60 A IFSM and 150°C TJ(max) ensure robustness during grid-fault current surges and sustained high-temperature operation. |
| Server PSU Secondary Rectification | Industrial Motor Drive Snubber Networks |
Use Scenario: +12 V output rectification in 80 PLUS Titanium-certified server power supply. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode in active-clamp forward converter. Use Value: 1.7 V VF(max) reduces conduction loss by 0.34 W vs. standard FRD, improving full-load efficiency by 0.25%. | Use Scenario: RC snubber clamp diode across motor drive IGBTs in HVAC variable-frequency drives. IC Role / Device Role / Timing Role: Fast recovery path for inductive energy dissipation during IGBT turn-off. Use Value: 75 ns trr ensures clean voltage clamping with minimal overshoot, reducing IGBT stress and EMI emissions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH2R06DJF | 600 V VRRM, 75 ns trr, 1.75 V VF(max), TO-220AC package | Higher thermal mass but requires PCB footprint change and heatsink mounting | Preferred where higher surge margin and thermal management are critical over board space |
| ON Semiconductor MUR260E | 600 V VRRM, 60 ns trr, 1.7 V VF(max), DO-15 package, no AEC-Q101 | Lacks automotive qualification; identical mechanical fit but not validated for automotive stress tests | Cost-effective alternative for industrial-only designs requiring faster trr but no automotive compliance |
Compared with STTH2R06DJF and MUR260E, the HER208GH uniquely combines 1000 V rating, AEC-Q101 qualification, and DO-15 form factor - making it the only drop-in solution for automotive 1000 V rectification without layout or qualification revalidation.
Availability
HER208GH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial switching inverters, and server power supply secondary rectification requiring stable component supply, long-term lifecycle assurance, and AEC-Q101-compliant sourcing.
Supply support for HER208GH 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 high-reliability rectifiers, TVS diodes, and power MOSFETs for automotive and industrial markets.
The HER20xG series was designed specifically for high-efficiency, high-voltage switching power supplies requiring AEC-Q101 qualification, ultrafast recovery, and robust thermal performance in constrained spaces.
FAQ
What is the maximum junction temperature rating for HER208GH?
The HER208GH has a maximum junction temperature (TJ(max)) of +150°C, verified per AEC-Q101 stress testing. This allows uninterrupted operation in under-hood automotive environments up to 125°C ambient when mounted on standard FR-4 PCB with 1 cm² copper pour. The HER208GH's 60°C/W RθJA enables thermal design margin even at full 2 A load.
Is HER208GH pin-compatible with other HER20xG variants?
Yes - all HER20xG and HER20xGH devices share identical DO-204AC (DO-15) package dimensions, lead spacing, and cathode-band polarity marking. The HER208GH can replace HER201G–HER207GH in the same footprint, though voltage and recovery time ratings differ; system-level validation is required when substituting lower-VRRM variants.
Does HER208GH meet automotive qualification standards?
Yes - the "H" suffix in HER208GH explicitly denotes AEC-Q101 qualification. Taiwan Semiconductor's official documentation confirms full compliance with AEC-Q101-004 (HTOL), -006 (TC), -007 (HAST), and -011 (ESD) test requirements. The HER208GH is approved for use in automotive powertrain and body electronics modules.
What is the reverse recovery time (trr) specification for HER208GH?
The HER208GH has a maximum reverse recovery time (trr) of 75 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per JEDEC standard test conditions. This value is confirmed across the full operating temperature range (–55°C to +150°C) and supports switching frequencies up to 500 kHz in hard-switched topologies without excessive switching loss.
How does the forward voltage (VF) of HER208GH compare to standard FRDs?
The HER208GH exhibits a maximum forward voltage of 1.7 V at 2 A and 25°C - approximately 0.2–0.3 V lower than typical fast recovery diodes in the same voltage class. This reduction directly lowers conduction loss: at 2 A, the HER208GH dissipates ≤3.4 W versus ≥3.8 W for legacy FRDs, improving thermal headroom and system efficiency.
HER208GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-204AC, DO-15, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1000 V
- Current - Average Rectified (Io):
- 2A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 2 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 75 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1000 V
- Capacitance @ Vr, F:
- 20pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
- Operating Temperature - Junction:
- -55°C ~ 150°C
HER208GH FAQ
1.How can I place an order for HER208GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HER208GH 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 HER208GH reliable?
The price and inventory of HER208GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER208GH is usually 5 days.
3.What payment methods are accepted for HER208GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER208GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HER208GH?
HER208GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HER208GH 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 HER208GH?
For technical support, including HER208GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER208GH requirements.
6.How does Aetrix verify that HER208GH is sourced from the original manufacturer or authorized distributors?
All HER208GH 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 HER208GH meets industry standards.
7.What is the process for return or replacement of HER208GH?
All HER208GH units undergo pre-shipment inspection (PSI). If there is an issue with HER208GH, 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 HER208GH part is unused and in its original packaging.
Return procedure for HER208GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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