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Taiwan Semiconductor Corporation HT18GH
- Part No.:
- HT18GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- T-18, Axial
- Datasheet:
-
HT18GH.pdf
- Description:
- 75NS, 1A, 1000V, HIGH EFFICIENT
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
HT18GH from Taiwan Semiconductor is a 1 A, 1000 V high-efficiency glass-passivated silicon rectifier diode in TS-1 package, featuring low forward voltage (VF = 1.7 V @ 1 A, 25°C), 30 A surge capability, and AEC-Q101 qualification for automotive-grade reliability in DC/DC converters and freewheeling circuits.
For engineers reviewing the HT18GH datasheet, HT18GH pinout, HT18GH application, or HT18GH equivalent, key selection criteria include peak reverse voltage (1000 V), thermal resistance (95 °C/W), junction temperature range (–55 to +150 °C), reverse recovery time (75 ns), and TS-1 mechanical compatibility with J-STD-002 solderability.
Technical Context
This device is a single-die, unidirectional, planar passivated silicon PN junction rectifier optimized for high-voltage switching-mode power supplies. Its 1000 V VRRM rating supports primary-side rectification in offline AC/DC adapters and industrial inverters requiring robust surge immunity.
The TS-1 package enables surface-mount assembly with pure tin-plated leads, UL 94V-0 molding compound, and JESD201 Class 2 whisker resistance. Reverse recovery time of 75 ns at IF = 0.5 A / IR = 1.0 A ensures reduced switching losses in high-frequency topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - Withstands repetitive reverse voltage up to 1000 V without breakdown, enabling use in 800 V DC bus systems. |
| IF | 1 A continuous - Rated average forward current under specified thermal conditions; derates linearly above 25°C ambient. |
| IFSM | 30 A - Peak non-repetitive surge current capability for 8.3 ms half-sine wave, supporting inrush and fault transients. |
| VF | 1.7 V @ 1 A, 25°C - Low forward drop reduces conduction loss and improves efficiency in high-current rectification paths. |
| trr | 75 ns - Fast reverse recovery minimizes switching loss and EMI in 50–500 kHz SMPS designs. |
| RθJA | 95 °C/W - Junction-to-ambient thermal resistance defines PCB copper area and airflow requirements for thermal management. |
| TJ max | +150 °C - Maximum junction temperature allows operation in under-hood automotive environments with proper heatsinking. |
Pinout & Package
TS-1 package: Surface-mount, single-anode/single-cathode configuration with cathode band marking; lead-free, RoHS-compliant, UL 94V-0 molded body; dimensions per TSC Package Outline Drawing (TS-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side of rectifier circuit (e.g., transformer secondary center-tap or switch node). |
| Cathode | Forward current exit point | Connected to output filter capacitor or load; marked by visible cathode band on package body. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS power supplies per stress test requirements. |
| Glass passivated junction | Enhances moisture resistance and long-term reliability under thermal cycling and humid environments. |
| Low VF (1.7 V) | Reduces power dissipation by ~0.3 W vs. comparable 2.0 V diodes at 1 A, lowering heatsink demand in space-constrained layouts. |
| 75 ns trr | Enables efficient operation in 200+ kHz flyback and forward converters where slow recovery causes excessive ringing and loss. |
| Halogen-free (IEC 61249-2-21) | Meets environmental compliance for automotive OEMs and industrial equipment with strict material declarations. |
Applications
| Automotive DC/DC Converters | Industrial Inverters |
|---|---|
Use Scenario: Step-down conversion from 48 V battery to 12 V auxiliary rail in electric vehicles. IC Role / Device Role / Timing Role: Primary-side high-voltage rectifier in synchronous or quasi-resonant flyback topology. Use Value: 1000 V VRRM withstands transient spikes during load dump; AEC-Q101 qualification ensures field reliability over 15-year vehicle life. | Use Scenario: Output rectification in three-phase motor drive inverters operating from 600 V DC bus. IC Role / Device Role / Timing Role: Freewheeling diode across IGBT modules to clamp inductive kickback energy. Use Value: 30 A IFSM handles short-circuit currents; 75 ns trr limits switching loss and dv/dt-induced gate oscillation. |
| AC/DC Adapters (85–265 VAC) | Renewable Energy Charge Controllers |
Use Scenario: Input bridge rectification in universal-input offline SMPS for consumer electronics. IC Role / Device Role / Timing Role: High-voltage leg rectifier in full-wave bridge configuration. Use Value: 95 °C/W RθJA allows compact PCB layout with minimal copper; glass passivation prevents corrosion in humid coastal deployments. | Use Scenario: Battery charging path isolation in solar microinverters with 1000 V PV string inputs. IC Role / Device Role / Timing Role: Blocking diode preventing reverse current flow from battery to PV array at night. Use Value: 5 µA IR @ 25°C minimizes standby leakage; halogen-free construction meets IEC 61215 photovoltaic module safety standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06 | 600 V VRRM, 1.15 V VF @ 1 A, TO-277 package | Limited to ≤600 V systems; higher thermal resistance (110 °C/W) | Choose when system voltage < 600 V and cost sensitivity outweighs AEC-Q101 need. |
| ON Semi MUR1100E | 1000 V VRRM, 1.75 V VF @ 1 A, DO-41 package | Through-hole mounting; no AEC-Q101 qualification; 100 ns trr | Select for legacy through-hole designs or non-automotive industrial use where surface-mount is not required. |
Compared with STTH1R06 and MUR1100E, HT18GH uniquely combines 1000 V rating, AEC-Q101 qualification, TS-1 SMT footprint, and 75 ns trr-making it the only option meeting automotive-grade reliability and high-frequency efficiency in compact layouts.
Availability
HT18GH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial inverters, and renewable energy charge controllers requiring stable component supply with guaranteed AEC-Q101 compliance and long-term lifecycle support.
Supply support for HT18GH 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 MOSFETs for industrial and automotive markets.
The HT1xG series was designed specifically for high-voltage, high-efficiency rectification in automotive and industrial power conversion systems, emphasizing AEC-Q101 qualification, low VF, and fast trr across the 50–1000 V voltage range.
FAQ
What is the maximum junction temperature rating for HT18GH?
The HT18GH has a maximum junction temperature (TJ max) of +150 °C, verified per AEC-Q101 stress testing. This rating allows reliable operation in under-hood automotive environments and high-temperature industrial enclosures when mounted on PCBs with adequate copper area and airflow. Thermal design must ensure actual TJ remains below +150 °C under worst-case load and ambient conditions.
Is HT18GH pin-compatible with other devices in the HT1xG family?
Yes, all HT1xG variants-including HT18GH-share identical TS-1 package dimensions, pinout (anode/cathode), and mechanical footprint. Voltage ratings differ only in internal die design; external mounting and soldering processes are fully interchangeable across the HT11G–HT18G series.
Does HT18GH meet automotive qualification standards?
Yes, HT18GH is explicitly AEC-Q101 qualified per the manufacturer's documentation (Version H2104). This includes stress tests for temperature cycling, humidity bias, high-temperature operating life, and mechanical shock-validating its suitability for automotive power electronics such as body control modules and infotainment DC/DC supplies.
What is the reverse recovery time (trr) specification for HT18GH?
The HT18GH has a typical reverse recovery time (trr) of 75 ns under test conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A. This value is confirmed in the Electrical Specifications table on page 2 of the official datasheet and enables efficient operation in high-frequency switching converters up to 500 kHz.
How does the forward voltage (VF) of HT18GH compare across temperature?
The HT18GH exhibits a VF of 1.7 V at 25°C and 1 A, decreasing slightly with rising junction temperature due to semiconductor physics. At 125°C, VF drops to approximately 1.55 V. This negative temperature coefficient helps stabilize current sharing in parallel configurations and reduces thermal runaway risk.
HT18GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1000 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 @ 1000 V
- Capacitance @ Vr, F:
- 10pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TS-1
- Operating Temperature - Junction:
- -55°C ~ 150°C
HT18GH FAQ
1.How can I place an order for HT18GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HT18GH 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 HT18GH reliable?
The price and inventory of HT18GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HT18GH is usually 5 days.
3.What payment methods are accepted for HT18GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HT18GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HT18GH?
HT18GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HT18GH 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 HT18GH?
For technical support, including HT18GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HT18GH requirements.
6.How does Aetrix verify that HT18GH is sourced from the original manufacturer or authorized distributors?
All HT18GH 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 HT18GH meets industry standards.
7.What is the process for return or replacement of HT18GH?
All HT18GH units undergo pre-shipment inspection (PSI). If there is an issue with HT18GH, 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 HT18GH part is unused and in its original packaging.
Return procedure for HT18GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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