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Taiwan Semiconductor Corporation HT17G
- Part No.:
- HT17G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- T-18, Axial
- Datasheet:
-
HT17G.pdf
- Description:
- DIODE GEN PURP 800V 1A TS-1
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
HT17G from Taiwan Semiconductor is a 1 A, 800 V glass-passivated high-efficiency 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 option. It serves as a freewheeling or output rectifier in automotive DC-DC converters and industrial switching inverters.
For engineers reviewing the HT17G datasheet, HT17G pinout, HT17G application, or HT17G equivalent, key selection criteria include peak reverse voltage (800 V), thermal resistance (95 °C/W), reverse recovery time (75 ns), junction capacitance (10 pF), and TS-1 mechanical compatibility with automated SMT assembly.
Technical Context
The HT17G is a single-die, planar passivated silicon rectifier optimized for high-frequency switching applications. Its 75 ns reverse recovery time and 10 pF junction capacitance support operation in 100–500 kHz SMPS topologies without excessive switching loss or EMI generation.
Designed for ambient temperatures up to 125°C and junction temperatures up to 150°C, it maintains stable leakage current (≤150 µA @ 125°C) and forward conduction under transient load conditions, meeting requirements for under-hood automotive power supplies and industrial motor drive auxiliary rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - supports input rectification in 400 VAC line-derived 560 VDC bus systems |
| 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 startup surges and short-circuit foldback currents |
| VF | 1.7 V @ 1 A, 25°C - reduces conduction loss by ~15% vs. standard 1N4007 in same layout |
| trr | 75 ns - enables efficient operation in flyback and forward converters above 200 kHz |
| RθJA | 95 °C/W - requires minimal copper area (≥100 mm²) for full 1 A derating at 70°C ambient |
| CJ | 10 pF @ 1 MHz, 4 V - minimizes capacitive coupling noise in high dv/dt gate-drive isolation circuits |
Pinout & Package
TS-1 package: molded epoxy case with pure tin-plated leads, UL 94V-0 rated, cathode indicated by band, weight ≈ 0.200 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential node (e.g., transformer secondary center-tap or switch node) |
| Cathode | Current exit point during forward conduction | Connected to output rail or filter capacitor positive; polarity marked by band on body |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable long-term reliability under humidity and thermal cycling per JESD22-A101 |
| AEC-Q101 qualified version available | Validated for automotive under-hood temperature and vibration stress profiles (HT17GH variant) |
| Low VF and fast trr | Reduces total power loss in 200–300 kHz flyback designs by >20% vs. general-purpose rectifiers |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU Directive 2011/65/EU for green manufacturing and end-of-life processing |
Applications
| Automotive DC-DC Converter | Industrial Switching Inverter |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V buck converter supplying infotainment and ADAS ECUs in vehicles. IC Role / Device Role / Timing Role: Output rectifier in synchronous or quasi-resonant flyback topology. Use Value: 800 V VRRM margin accommodates transients up to ISO 7637-2 Pulse 5a; 75 ns trr ensures clean turn-off with SiC gate drivers. | Use Scenario: Auxiliary power supply in 3-phase VFDs converting 380 VAC to 24 V control rail. IC Role / Device Role / Timing Role: Input bridge rectifier leg in compact, thermally constrained PCB layout. Use Value: 95 °C/W RθJA allows direct mounting on FR-4 without heatsink; 10 pF CJ limits EMI coupling into analog sensor traces. |
| Freewheeling Diode in Solenoid Driver | UPS Battery Charger Rectifier |
Use Scenario: Inductive load suppression in 24 V truck chassis solenoid control modules. IC Role / Device Role / Timing Role: Freewheeling path for 1 A coil current during MOSFET turn-off. Use Value: 30 A IFSM handles back-EMF spikes without degradation; glass passivation prevents moisture-induced leakage drift. | Use Scenario: AC input rectification stage in 1 kVA online UPS battery charging circuit. IC Role / Device Role / Timing Role: Single-phase bridge leg component operating at 50/60 Hz with 100–200 Hz ripple. Use Value: 150 °C TJ max enables sustained operation at 85 °C ambient inside sealed UPS enclosures; RoHS/halogen-free compliance meets IEC 62368-1. |
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 | Same 1 A / 800 V rating; VF = 1.75 V @ 1 A; trr = 70 ns; TO-220AC package (larger footprint, higher RθJA) | Requires heatsink above 0.5 A continuous; unsuitable for space-constrained automotive modules | Select when thermal mass or legacy TO-220 layout compatibility is prioritized over board area |
| ON Semi MUR108 | 1 A / 800 V; VF = 1.85 V; trr = 75 ns; DO-41 package; no AEC-Q101 option | Limited to commercial-temp industrial use; lacks automotive qualification and halogen-free certification | Select for cost-sensitive non-automotive applications where AEC-Q101 and green compliance are not required |
Compared with STTH1R08 and MUR108, the HT17G delivers identical voltage/surge ratings in a smaller TS-1 package with lower thermal resistance and certified automotive readiness-making it optimal for next-gen compact, high-reliability power stages.
Availability
HT17G is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switching inverters, and freewheeling applications requiring stable component supply across production lifecycles.
Supply support for HT17G 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 HT1xG series was developed specifically for high-efficiency, high-reliability rectification in space- and thermal-constrained power supplies, emphasizing AEC-Q101 readiness, low VF, and fast recovery for modern switching topologies.
FAQ
What is the maximum junction temperature rating for HT17G?
The HT17G has a maximum junction temperature (TJ MAX) of +150°C, validated per JEDEC JESD22-A108. This allows continuous operation at full 1 A forward current in ambient temperatures up to 70°C when mounted on ≥100 mm² copper area, making HT17G suitable for under-hood automotive environments and enclosed industrial power supplies.
Does HT17G have AEC-Q101 qualification?
Yes, the HT17G is available in an AEC-Q101 qualified variant designated HT17GH. The standard HT17G is not AEC-Q101 certified; only HT17GH undergoes full stress testing per AEC-Q101 Rev D, including temperature cycling, HTRB, and ESD. For automotive applications, specify HT17GH to ensure qualification compliance.
What is the reverse recovery time (trr) of HT17G and how is it measured?
The HT17G has a typical reverse recovery time (trr) of 75 ns, measured under conditions of IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A per JEDEC JESD282. This value is confirmed in the official TSC H2104 datasheet and applies to all HT16G–HT18G variants. The test uses a standardized half-sine waveform with defined di/dt and voltage slew rate.
Can HT17G replace HT16G or HT18G in a design?
No-HT17G is not a drop-in replacement for HT16G (600 V) or HT18G (1000 V). While all share the same TS-1 package and 1 A rating, their VRRM ratings differ significantly: HT16G = 600 V, HT17G = 800 V, HT18G = 1000 V. Substituting HT17G for HT18G risks insufficient voltage margin in 700+ V applications; substituting for HT16G may over-specify cost and VF without benefit.
What does the "G" suffix indicate in HT17G?
The "G" suffix in HT17G denotes green compliance: RoHS-compliant materials and halogen-free molding compound per IEC 61249-2-21. It does not indicate packaging type or qualification level. The base part HT17G is green-compliant; AEC-Q101 qualification is added via the "H" suffix (HT17GH), and tape-and-reel packaging is implied unless specified otherwise (e.g., HT17GA0G = ammo box).
HT17G 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):
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TS-1
- Operating Temperature - Junction:
- -55°C ~ 150°C
HT17G FAQ
1.How can I place an order for HT17G through Aetrix?
Please submit a Request for Quotation (RFQ) for HT17G 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 HT17G reliable?
The price and inventory of HT17G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HT17G is usually 5 days.
3.What payment methods are accepted for HT17G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HT17G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HT17G?
HT17G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HT17G 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 HT17G?
For technical support, including HT17G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HT17G requirements.
6.How does Aetrix verify that HT17G is sourced from the original manufacturer or authorized distributors?
All HT17G 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 HT17G meets industry standards.
7.What is the process for return or replacement of HT17G?
All HT17G units undergo pre-shipment inspection (PSI). If there is an issue with HT17G, 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 HT17G part is unused and in its original packaging.
Return procedure for HT17G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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