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Taiwan Semiconductor Corporation HT14GH
- Part No.:
- HT14GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- T-18, Axial
- Datasheet:
-
HT14GH.pdf
- Description:
- 50NS, 1A, 300V, HIGH EFFICIENT R
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
HT14GH from Taiwan Semiconductor is a 300 V, 1 A glass-passivated high-efficiency rectifier diode in TS-1 package, featuring 50 ns reverse recovery time, 1.0 V forward voltage at 1 A, and 30 A surge capability - used in freewheeling paths of automotive DC-DC converters.
For engineers reviewing the HT14GH datasheet, HT14GH pinout, HT14GH application, or HT14GH equivalent, key selection criteria include repetitive peak reverse voltage (300 V), thermal resistance (95 °C/W), junction temperature range (–55 to +150 °C), AEC-Q101 qualification, and TS-1 mechanical compatibility.
Technical Context
This device is a single-die, silicon planar epitaxial PN junction rectifier optimized for high-speed switching and low conduction loss. Its glass passivation ensures stable surface characteristics under thermal cycling and humidity stress.
The HT14GH operates with a maximum junction temperature of 150 °C and exhibits 5 µA reverse leakage at 25 °C and rated VR, rising to 150 µA at 125 °C - critical for reliability in automotive ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 300 V - supports 300 V DC bus or 210 V RMS AC input in SMPS designs |
| IF | 1 A continuous - suitable for low-to-medium power output stages up to ~15 W |
| IFSM | 30 A (8.3 ms half-sine) - withstands inrush and transient surges without failure |
| VF @ 1 A | 1.0 V max at 25 °C - reduces conduction loss and improves efficiency vs. standard rectifiers |
| trr | 50 ns max - enables operation in 100–500 kHz switching topologies with minimal switching loss |
| RθJA | 95 °C/W - requires minimal heatsinking on FR-4 PCB with 1 in² copper pour |
| AEC-Q101 | Qualified - meets stress test requirements for automotive under-hood applications |
Pinout & Package
Package: TS-1 - molded plastic case with pure tin-plated leads, UL 94V-0 rated, polarity indicated by cathode band, 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 or ground return) |
| Cathode | Current exit point during forward conduction; marked with band | Connected to higher-potential rail (e.g., output capacitor positive or supply rail) |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Prevents moisture-induced degradation and enhances long-term stability in humid environments |
| High surge current capability (30 A) | Survives repeated cold-start inrush and load dump transients in automotive systems |
| Low VF (1.0 V @ 1 A) | Reduces power dissipation by ~15% compared to legacy 1.15 V rectifiers at same current |
| TS-1 package with JESD201 Class 2 whisker resistance | Enables automated assembly and eliminates tin whisker risk in safety-critical modules |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and ESD testing per AEC standard |
Applications
| Automotive DC-DC Converters | Industrial Switch-Mode Power Supplies |
|---|---|
Use Scenario: Step-down conversion from 12 V or 24 V battery to 3.3 V/5 V for ECUs and sensors. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or non-synchronous buck topology. Use Value: 50 ns trr minimizes reverse recovery loss; AEC-Q101 rating ensures compliance with automotive qualification requirements. | Use Scenario: Output rectification in 10–20 W isolated flyback or forward converters. IC Role / Device Role / Timing Role: Primary-side or secondary-side unidirectional current path with low conduction loss. Use Value: 1.0 V VF reduces heat generation; 95 °C/W RθJA allows operation without heatsink on standard PCB layout. |
| LED Driver Circuits | Freewheeling in Relay/Inductor Control |
Use Scenario: Constant-current LED string drivers in commercial lighting with PWM dimming. IC Role / Device Role / Timing Role: Output rectifier in boost or SEPIC LED driver stage. Use Value: Low trr prevents current tailing that causes LED flicker; 300 V VRRM supports >200 V LED strings. | Use Scenario: Snubberless freewheeling across solenoids, contactors, or relay coils in PLC I/O modules. IC Role / Device Role / Timing Role: Clamp diode absorbing inductive kickback energy. Use Value: 30 A IFSM handles high-energy transients; glass passivation ensures reliability over millions of cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-efficiency rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06U | 600 V VRRM, 1.15 V VF @ 1 A, TO-220AC package | Higher voltage margin but larger footprint and higher VF | Preferred where 600 V isolation or higher surge immunity is required; not drop-in due to package and pinout mismatch |
| ON Semi MUR105G | 50 V VRRM, 1.15 V VF @ 1 A, DO-41 package | Lower voltage rating, higher VF, smaller thermal mass | Suitable only for ≤50 V systems; lacks AEC-Q101 qualification and TS-1 mechanical robustness |
Compared with STTH1R06U and MUR105G, the HT14GH delivers optimal balance of 300 V rating, 1.0 V VF, AEC-Q101 compliance, and TS-1 compactness - making it preferred for space-constrained, automotive-grade 12–24 V DC-DC designs requiring high reliability and low loss.
Availability
HT14GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switch-mode power supplies, and LED driver circuits requiring stable component supply with AEC-Q101 assurance and consistent TS-1 packaging.
Supply support for HT14GH 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-reliability rectification in automotive power systems, emphasizing AEC-Q101 qualification, thermal robustness, and fast recovery performance in compact TS-1 packaging.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) for HT14GH?
The HT14GH has a VRRM of 300 V, meaning it can block up to 300 V of reverse voltage continuously without breakdown. This value is confirmed in the Absolute Maximum Ratings table of the official TSC datasheet (Version H2104), and aligns with its designation as the "14" variant in the HT11G–HT18G family (where "14" = 300 V). The HT14GH must not be operated beyond this rating in any design.
Is HT14GH qualified to AEC-Q101, and what does the "H" suffix indicate?
Yes, HT14GH is AEC-Q101 qualified - the "H" suffix explicitly denotes AEC-Q101 qualification per TSC's Ordering Information table. This includes passing stress tests such as high-temperature reverse bias (HTRB), temperature cycling, and unbiased highly accelerated stress testing (uHAST). The qualification applies specifically to the HT14GH part number, not the entire HT1xG family unless otherwise stated.
What is the forward voltage (VF) of HT14GH at 1 A and 25 °C?
The forward voltage of HT14GH is 1.0 V maximum at IF = 1 A and TJ = 25 °C, as specified in the Electrical Specifications table (page 2, Version H2104). This value is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating effects. At elevated junction temperatures, VF decreases slightly, but design margins should be based on the 1.0 V max value.
What package type does HT14GH use, and what are its key mechanical features?
HT14GH uses the TS-1 package: a molded plastic case with pure tin-plated leads, UL 94V-0 flammability rating, and cathode polarity indicated by a band. It weighs approximately 0.200 g and passes JESD201 Class 2 whisker testing. The TS-1 outline and marking diagram are documented on page 5 of the TSC datasheet (Version H2104).
What is the reverse recovery time (trr) specification for HT14GH?
The reverse recovery time (trr) for HT14GH is 50 ns maximum, measured at IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A (per Figure 6 test circuit). This value is confirmed in the Electrical Specifications table for HT11G–HT15G variants. The 50 ns trr enables efficient operation in switching frequencies up to 500 kHz with minimal switching loss.
HT14GH 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):
- 300 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 50 ns
- Current - Reverse Leakage @ Vr:
- 5 µA @ 300 V
- Capacitance @ Vr, F:
- 15pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TS-1
- Operating Temperature - Junction:
- -55°C ~ 150°C
HT14GH FAQ
1.How can I place an order for HT14GH through Aetrix?
Please submit a Request for Quotation (RFQ) for HT14GH 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 HT14GH reliable?
The price and inventory of HT14GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HT14GH is usually 5 days.
3.What payment methods are accepted for HT14GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HT14GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HT14GH?
HT14GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HT14GH 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 HT14GH?
For technical support, including HT14GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HT14GH requirements.
6.How does Aetrix verify that HT14GH is sourced from the original manufacturer or authorized distributors?
All HT14GH 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 HT14GH meets industry standards.
7.What is the process for return or replacement of HT14GH?
All HT14GH units undergo pre-shipment inspection (PSI). If there is an issue with HT14GH, 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 HT14GH part is unused and in its original packaging.
Return procedure for HT14GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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