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Taiwan Semiconductor Corporation HER158GH
- Part No.:
- HER158GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
HER158GH.pdf
- Description:
- 75NS, 1.5A, 1000V, HIGH EFFICIEN
- Quantity:
- Payment:
- Shipping:
Inventory:3,500
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Product details
Overview
HER158GH from Taiwan Semiconductor is an AEC-Q101 qualified high-efficiency silicon rectifier diode in DO-204AC (DO-15) package, rated for 1000 V repetitive peak reverse voltage (VRRM), 1.5 A average forward current (IF), and 50 A non-repetitive surge current (IFSM); used in automotive-grade DC-DC converters and switching inverters.
For engineers reviewing the HER158GH datasheet, HER158GH pinout, HER158GH application, or HER158GH equivalent, key selection criteria include its 1000 V VRRM rating, 1.7 V max forward voltage at 1.5 A, 75 ns reverse recovery time, AEC-Q101 qualification, and DO-15 mechanical compatibility with legacy through-hole power rectifier layouts.
Technical Context
This device is a single-die, glass-passivated, ultra-fast recovery rectifier optimized for high-voltage switching-mode power supplies. Its 1000 V VRRM and 75 ns trr enable efficient operation in flyback and forward converter topologies where fast turn-off and low switching loss are critical.
The HER158GH features pure tin-plated leads compliant with J-STD-002, meets JESD201 Class 2 whisker resistance, and uses UL 94V-0 molding compound - all supporting automotive under-hood reliability requirements per AEC-Q101 stress test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports primary-side rectification in offline 800 V AC-input SMPS designs |
| IF (AV) | 1.5 A - continuous conduction mode operation up to 1.5 A average forward current |
| IFSM | 50 A - withstands 8.3 ms half-sine surge transients common in input rectification |
| VF (max) | 1.7 V @ 1.5 A - low conduction loss enabling >92% efficiency in 12–24 V output converters |
| trr | 75 ns - reduces switching losses and EMI in 50–500 kHz switching applications |
| TJ(max) | 150 °C - enables operation in high-ambient automotive engine bay environments |
| CJ | 20 pF @ 1 MHz, 4 V - minimizes capacitive coupling noise in high-dv/dt circuits |
Pinout & Package
DO-204AC (DO-15) axial-leaded package with cathode band marking; lead-free, RoHS-compliant, halogen-free molding compound meeting UL 94V-0; weight ≈ 0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry point | Connected to transformer secondary or switch node; accepts 1.5 A continuous forward current |
| Cathode (banded end) | Forward current exit / reverse blocking terminal | Connected to output capacitor or ground return; blocks up to 1000 V reverse voltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power electronics including engine control modules and ADAS power supplies |
| Glass-passivated junction | Enhances moisture resistance and long-term reliability under thermal cycling and humidity stress |
| Ultra-fast recovery (75 ns) | Reduces reverse recovery charge (Qrr), lowering switching losses vs. standard rectifiers |
| Low VF (1.7 V max) | Minimizes conduction loss at full load, reducing heatsink requirements in compact designs |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and global environmental regulations for automotive production |
Applications
| Automotive DC-DC Converters | Industrial Switching Inverters |
|---|---|
Use Scenario: 12 V to 48 V bidirectional DC-DC conversion in 48 V mild hybrid vehicle architectures. IC Role / Device Role / Timing Role: Primary-side high-voltage rectifier handling 1000 V transient spikes during regenerative braking. Use Value: AEC-Q101 qualification and 150 °C TJ(max) ensure uninterrupted operation under under-hood thermal stress. | Use Scenario: Output rectification in 3 kW industrial UPS inverters using SiC MOSFETs. IC Role / Device Role / Timing Role: Freewheeling diode clamping inductive kickback during high-frequency (100 kHz) PWM switching. Use Value: 75 ns trr and low Qrr suppress voltage overshoot and reduce snubber losses. |
| Server Power Supply Front-End | Renewable Energy Charge Controllers |
Use Scenario: PFC boost diode in 3.3 kW telecom rectifier modules with universal AC input. IC Role / Device Role / Timing Role: High-voltage, high-current output rectifier in continuous conduction mode (CCM) PFC stage. Use Value: 1.5 A IF rating and 60 °C/W RθJA support forced-air-cooled designs without derating below 70 °C ambient. | Use Scenario: PV array string protection and MPPT output rectification in off-grid solar charge controllers. IC Role / Device Role / Timing Role: Reverse polarity and surge protection diode in battery charging path with 1000 V isolation margin. Use Value: 50 A IFSM handles lightning-induced surges; glass passivation prevents corrosion in coastal/humid installations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1L06S | 600 V VRRM, 1.0 A IF, TO-277 package, 50 ns trr | Limited to ≤600 V systems; lower surge rating (30 A) | Choose for cost-sensitive 600 V applications where footprint and thermal performance allow SMD mounting |
| VS-HER158G | Same VRRM/IF/trr specs, but not AEC-Q101 qualified; same DO-15 package | Not approved for automotive use; lacks whisker test and extended temperature validation | Acceptable for industrial/non-automotive 1000 V rectification where AEC-Q101 is not mandated |
Compared with STTH1L06S and VS-HER158G, the HER158GH uniquely combines 1000 V capability, AEC-Q101 qualification, and DO-15 through-hole compatibility - making it the only drop-in solution for automotive 1000 V rectifier upgrades requiring zero PCB redesign.
Availability
HER158GH is available at Aetrix Electronics and suitable for automotive power conversion, industrial UPS systems, and renewable energy charge controllers requiring stable component supply across multi-year production cycles.
Supply support for HER158GH 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 HER15xG series was designed specifically to deliver AEC-Q101 qualified, high-voltage, ultra-fast recovery rectification for next-generation automotive DC-DC converters and on-board chargers.
FAQ
What is the maximum junction temperature rating for HER158GH?
The HER158GH has a maximum junction temperature (TJ(max)) of +150 °C, validated per AEC-Q101 stress testing. This allows reliable operation in under-hood automotive environments and high-ambient industrial enclosures. Derating curves in the official TSC datasheet specify usable IF down to 0.9 A at 125 °C ambient with natural convection cooling. The HER158GH's 60 °C/W RθJA supports this thermal envelope when mounted on standard copper land patterns.
Is HER158GH pin-compatible with other DO-15 rectifiers like 1N5408?
Yes, HER158GH uses the standard DO-204AC (DO-15) axial package with identical mechanical dimensions and lead spacing as 1N5408, 1N5399, and similar legacy rectifiers. However, HER158GH offers superior 1000 V VRRM, 75 ns trr, and AEC-Q101 qualification - meaning it can replace those parts in high-reliability designs without layout changes, though electrical performance exceeds legacy specs.
Does HER158GH meet automotive qualification standards?
Yes, HER158GH is explicitly AEC-Q101 qualified, as indicated by the "H" suffix in the ordering code. It passes all required stress tests including temperature cycling, high-temperature operating life, unbiased highly accelerated stress testing (uHAST), and solder heat resistance. The device also meets JESD201 Class 2 whisker resistance and uses halogen-free, RoHS-compliant materials per IEC 61249-2-21 - fulfilling Tier 1 automotive supply chain requirements.
What is the reverse recovery time (trr) specification for HER158GH?
The HER158GH 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 ultra-fast recovery characteristic reduces switching losses and EMI generation in high-frequency SMPS designs. The trr value is confirmed across the full temperature range (−55 °C to +125 °C) and is significantly faster than standard recovery rectifiers (e.g., 1N5408: ~2000 ns), making HER158GH suitable for 100–500 kHz operation.
How does the forward voltage (VF) of HER158GH compare to lower-voltage HER15xG variants?
HER158GH exhibits a higher typical forward voltage: 1.7 V max at 1.5 A and 25 °C, versus 1.0 V for HER151G and 1.3 V for HER155G. This reflects the trade-off between higher breakdown voltage and increased series resistance in the epitaxial layer. Despite the higher VF, HER158GH maintains low power loss due to its optimized geometry and glass passivation - verified by its 60 °C/W RθJA and 50 A IFSM rating.
HER158GH 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):
- 1.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.7 V @ 1.5 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
HER158GH FAQ
1.How can I place an order for HER158GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HER158GH 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 HER158GH reliable?
The price and inventory of HER158GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HER158GH is usually 5 days.
3.What payment methods are accepted for HER158GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HER158GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HER158GH?
HER158GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HER158GH 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 HER158GH?
For technical support, including HER158GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HER158GH requirements.
6.How does Aetrix verify that HER158GH is sourced from the original manufacturer or authorized distributors?
All HER158GH 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 HER158GH meets industry standards.
7.What is the process for return or replacement of HER158GH?
All HER158GH units undergo pre-shipment inspection (PSI). If there is an issue with HER158GH, 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 HER158GH part is unused and in its original packaging.
Return procedure for HER158GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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