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Taiwan Semiconductor Corporation HT17GH
- Part No.:
- HT17GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- T-18, Axial
- Datasheet:
-
HT17GH.pdf
- Description:
- 75NS, 1A, 800V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
HT17GH from Taiwan Semiconductor is a 1 A, 800 V high-efficiency glass-passivated silicon rectifier diode in TS-1 package, featuring low forward voltage (1.7 V at 1 A, 25°C), 30 A surge capability, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the HT17GH datasheet, HT17GH pinout, HT17GH application, or HT17GH equivalent, key selection considerations include its 800 V repetitive peak reverse voltage, 75 ns reverse recovery time, junction-to-ambient thermal resistance of 95 °C/W, and suitability for DC-DC converters requiring robust freewheeling performance under high-temperature operation.
Technical Context
This single-die standard recovery rectifier uses a glass-passivated PN junction to achieve stable reverse blocking up to 800 V and low conduction loss. Its 1.7 V forward voltage at rated current and 75 ns trr reflect optimized trade-offs between switching speed and conduction efficiency for medium-frequency switching applications.
The TS-1 package provides pure tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 molding compound, and JESD201 Class 2 whisker resistance - all supporting automotive and industrial environments where long-term interconnect integrity is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 800 V - supports DC bus voltages up to 560 V RMS in bridge or freewheeling configurations |
| IF | 1 A continuous - suitable for low-to-medium power DC-DC stages with thermal derating above 75°C ambient |
| IFSM | 30 A (8.3 ms half-sine) - withstands inrush and transient overloads without bond-wire failure |
| VF | 1.7 V @ 1 A, 25°C - reduces conduction loss by ~15% vs. typical 1A/600V rectifiers with VF ≥ 1.95 V |
| trr | 75 ns - enables operation up to ~200 kHz in non-synchronous buck/flyback topologies before switching loss dominates |
| TJ max | 150°C - allows full-rated current use in engine bay or enclosed industrial enclosures with adequate heatsinking |
| RθJA | 95 °C/W - requires ≤ 75°C ambient or external thermal relief to maintain TJ ≤ 150°C at full IF |
Pinout & Package
TS-1 package: molded epoxy case with axial leads; cathode indicated by band; lead finish: pure tin; weight ≈ 0.200 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side (e.g., switch node in buck converter freewheel path) |
| Cathode | Current exit point during forward conduction; reverse-blocking terminal | Marked with band; tied to output rail or positive bus; blocks 800 V reverse bias |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements (HTOL, TC, UHAST) |
| Glass-passivated junction | Eliminates moisture-induced leakage drift and improves long-term IR stability at 125°C |
| Low VF (1.7 V) | Reduces average conduction loss to 1.7 W at 1 A, lowering thermal load on PCB copper area |
| High IFSM (30 A) | Survives repeated cold-start surges in 12 V/24 V systems without parametric shift or catastrophic failure |
| RoHS + halogen-free | Complies with IEC 61249-2-21 and EU Directive 2011/65/EU for green manufacturing and end-of-life processing |
Applications
| Automotive DC-DC Converter | Industrial SMPS Freewheel Diode |
|---|---|
Use Scenario: 12 V to 5 V/3.3 V step-down converter in ADAS camera module with intermittent high-current bursts. IC Role / Device Role / Timing Role: Freewheeling diode in non-synchronous buck regulator, conducting during low-side switch off-time. Use Value: AEC-Q101 qualification ensures reliability across -40°C to +125°C ambient; 75 ns trr limits switching loss at 200 kHz operation. | Use Scenario: Output rectification in 24 V input, 12 V/2 A industrial power supply with variable load profiles. IC Role / Device Role / Timing Role: Main output rectifier handling continuous 1 A load with occasional 3 A surges. Use Value: 30 A IFSM absorbs motor startup transients; 95 °C/W RθJA enables natural convection cooling on 1 oz copper. |
| Telecom Power Brick Snubber | LED Driver Flyback Secondary |
Use Scenario: Clamp diode in active clamp flyback used in telecom 48 V intermediate bus converter. IC Role / Device Role / Timing Role: Voltage clamp during transformer reset phase, absorbing reflected energy. Use Value: 800 V VRRM safely handles reflected spikes up to 650 V; glass passivation prevents IR drift under humid conditions. | Use Scenario: Secondary-side rectification in isolated 24 V LED driver powering streetlight arrays. IC Role / Device Role / Timing Role: Output rectifier delivering constant current to LED string with 100–200 kHz switching. Use Value: 1.7 V VF minimizes heat generation in sealed enclosure; halogen-free compound meets IEC 62474 compliance. |
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; DO-41 package | DO-41 has higher RθJA (~120 °C/W); less suited for high-density layouts | Prefer HT17GH when board space or thermal performance is constrained; STTH1R08 acceptable for lower-power, through-hole designs |
| ON Semi MUR108 | Ultrafast recovery (trr = 50 ns); VF = 1.85 V @ 1 A; same TS-1 package; no AEC-Q101 | Lacks automotive qualification; better for high-frequency SMPS where switching loss dominates | Select HT17GH for automotive or harsh-environment use; choose MUR108 only if trr < 60 ns is mandatory and qualification is not required |
Compared with STTH1R08 and MUR108, HT17GH uniquely combines AEC-Q101 qualification, TS-1 thermal performance (95 °C/W), and 1.7 V VF in a single offering - making it optimal for space-constrained automotive and industrial DC-DC where reliability and efficiency must coexist.
Availability
HT17GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switching power supplies, and LED driver flyback secondaries requiring stable component supply with guaranteed AEC-Q101 compliance and long-lifecycle support.
Supply support for HT17GH 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 targets high-reliability rectification in automotive and industrial power conversion, emphasizing ruggedized packaging, extended temperature operation, and qualification-aligned testing for mission-critical applications.
FAQ
What is the maximum junction temperature rating for HT17GH?
The HT17GH has a maximum junction temperature (TJ max) of 150°C, verified per AEC-Q101 stress testing. This allows continuous 1 A operation in ambient temperatures up to 75°C with proper PCB copper area or minimal heatsinking. Exceeding this limit risks irreversible degradation of the glass-passivated junction and increased reverse leakage.
Is HT17GH pin-compatible with other devices in the HT1xG family?
Yes, all HT1xG devices including HT17GH share identical TS-1 package dimensions, lead spacing, and anode/cathode terminal assignment. Voltage ratings differ (50–1000 V), but mechanical and soldering compatibility is maintained across the family - enabling design reuse and BOM flexibility without layout changes.
Does HT17GH meet automotive qualification standards?
Yes, HT17GH is explicitly AEC-Q101 qualified, as confirmed by the "H" suffix in its ordering code and documented in TSC's H2104 revision. It passes high-temperature operating life, temperature cycling, and unbiased highly accelerated stress tests required for automotive power electronics.
What is the reverse recovery time (trr) specification for HT17GH?
The HT17GH has a maximum reverse recovery time (trr) of 75 ns under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A test conditions. This value is measured per JEDEC JESD24-11 and supports reliable operation in switching power supplies up to ~200 kHz before switching losses become dominant.
How does the forward voltage of HT17GH compare to HT16GH and HT18GH?
HT17GH shares the same forward voltage specification (1.7 V max at 1 A, 25°C) as HT16GH and HT18GH, as confirmed in the Electrical Specifications table. All three variants belong to the higher-voltage subgroup (600–1000 V) with identical VF and trr characteristics, differing only in VRRM (600 V, 800 V, 1000 V).
HT17GH 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TS-1
- Operating Temperature - Junction:
- -55°C ~ 150°C
HT17GH FAQ
1.How can I place an order for HT17GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HT17GH 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 HT17GH reliable?
The price and inventory of HT17GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HT17GH is usually 5 days.
3.What payment methods are accepted for HT17GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HT17GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HT17GH?
HT17GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HT17GH 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 HT17GH?
For technical support, including HT17GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HT17GH requirements.
6.How does Aetrix verify that HT17GH is sourced from the original manufacturer or authorized distributors?
All HT17GH 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 HT17GH meets industry standards.
7.What is the process for return or replacement of HT17GH?
All HT17GH units undergo pre-shipment inspection (PSI). If there is an issue with HT17GH, 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 HT17GH part is unused and in its original packaging.
Return procedure for HT17GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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