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Taiwan Semiconductor Corporation 1T7G A0G
- Part No.:
- 1T7G A0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- T-18, Axial
- Datasheet:
-
1T7G A0G.pdf
- Description:
- DIODE GEN PURP 1A TS-1
- Quantity:
- Payment:
- Shipping:
Inventory:5,506
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Product details
Overview
1T7G from Taiwan Semiconductor is a single-die, 1 A, 1000 V repetitive peak reverse voltage standard rectifier in TS-1 package, featuring 30 A surge capability, 1.0 V max forward voltage at 1 A and 25°C, and AEC-Q101 qualification option (1T7GH). It serves as primary output rectifier in high-voltage DC-DC converters and industrial SMPS.
For engineers reviewing the 1T7G datasheet, 1T7G pinout, 1T7G application, or 1T7G equivalent, key selection criteria include verified VRRM = 1000 V, IF = 1 A continuous rating, IFSM = 30 A surge, TJ = –55 to +150°C operating range, and TS-1 mechanical compatibility with automated SMT placement.
Technical Context
The 1T7G operates as a unidirectional silicon PN junction rectifier optimized for high-voltage switching-mode power supplies. Its thermal resistance RθJA = 100°C/W and junction capacitance CJ = 10 pF at 1 MHz / 4 V enable stable operation under fast transient loads and moderate-frequency switching.
Designed for reliability in automotive-grade applications when ordered as 1T7GH, it meets JESD201 Class 2 whisker resistance and UL 94V-0 molding compound requirements. Polarity is indicated by cathode band; terminals are pure tin-plated per J-STD-002 solderability standard.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1000 V - supports input rectification up to 700 V RMS systems without derating |
| IF | 1 A continuous - suitable for low-to-medium power DC-DC outputs (e.g., 12–48 V @ ≤12 W) |
| IFSM | 30 A (8.3 ms half-sine) - withstands inrush and short-circuit transients in SMPS startup |
| VF max | 1.0 V @ IF = 1 A, TJ = 25°C - minimizes conduction loss in high-efficiency designs |
| TJ max | +150°C - enables operation in sealed enclosures or high-ambient environments |
| RθJA | 100°C/W - requires minimal PCB copper area for thermal management in TS-1 footprint |
| CJ | 10 pF @ 1 MHz, 4 V - limits capacitive coupling noise in high-dv/dt switching nodes |
Pinout & Package
TS-1 package: 2-terminal axial-lead miniature plastic case (3 mm body), cathode-indicated by band, RoHS-compliant and halogen-free per IEC 61249-2-21.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point | Connected to transformer secondary or high-side switch node; must handle full load current and surge |
| Cathode | Output current exit point | Connected to output filter capacitor and load; polarity marking ensures correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified variant available | Enables use in automotive infotainment and body electronics where component stress testing is mandated |
| Low VF (≤1.0 V) | Reduces power dissipation by ~15% vs. legacy 1N4007 in same 1 A application |
| High IFSM = 30 A | Eliminates need for parallel diodes in surge-prone industrial power supplies |
| TS-1 3 mm body | Offers 30% smaller footprint than DO-41 while maintaining full 1 A rating |
| UL 94V-0 molding | Meets flame-retardancy requirements for enclosed power adapters and medical auxiliary supplies |
Applications
| DC-DC Converter Output Rectification | Industrial Switching Inverter |
|---|---|
Use Scenario: Secondary-side rectification in isolated flyback or forward converters delivering 24–48 V at ≤1 A. IC Role / Device Role / Timing Role: Unidirectional current valve converting transformer AC output to regulated DC. Use Value: 1000 V VRRM provides 2× safety margin over 400 V DC bus spikes; 1.0 V VF keeps losses under 1 W at full load. | Use Scenario: Freewheeling path in H-bridge motor drives or UPS inverters operating from 300–600 V DC bus. IC Role / Device Role / Timing Role: Clamp diode absorbing inductive kickback during MOSFET turn-off. Use Value: 30 A IFSM handles 3× motor stall current; 150°C TJ max sustains operation near heatsinked power stages. |
| Automotive Auxiliary Power Supply | General-Purpose AC/DC Adapter |
Use Scenario: Input rectification stage in 12 V automotive DC-DC modules powering infotainment or ADAS sensors. IC Role / Device Role / Timing Role: Bridge or single-diode rectifier converting alternator-derived AC to stabilized DC. Use Value: AEC-Q101-qualified version (1T7GH) meets vibration, temperature cycling, and ESD robustness requirements per ISO 16750. | Use Scenario: Primary rectifier in universal-input (85–265 V AC) wall adapters for consumer electronics. IC Role / Device Role / Timing Role: Half-wave or full-wave rectifier feeding bulk capacitor in non-isolated buck-derived topologies. Use Value: TS-1 package fits compact 25 mm² PCB footprints; RoHS/halogen-free compliance satisfies global regulatory mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1R06 | VRRM = 600 V, VF = 1.15 V @ 1 A, DO-41 package | Limited to ≤420 V RMS input; larger footprint than TS-1 | Select when lower cost and legacy DO-41 tooling exist, but derate VRRM by 30% for 600 V systems |
| ON Semi MUR110 | VRRM = 1000 V, VF = 0.95 V @ 1 A, DO-41, no AEC-Q101 option | Lower VF improves efficiency, but lacks automotive qualification path | Prefer for high-efficiency consumer adapters; avoid where AEC-Q101 traceability is required |
Compared with STTH1R06 and MUR110, the 1T7G delivers identical 1000 V blocking with TS-1 space savings and optional AEC-Q101 validation-making it optimal for next-gen automotive and compact industrial power supplies where footprint, reliability, and qualification alignment matter.
Availability
1T7G is available at Aetrix Electronics and suitable for DC-DC converter output rectification, industrial switching inverters, and general-purpose AC/DC adapters requiring stable component supply across automotive, industrial, and consumer production programs.
Supply support for 1T7G 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 global power, automotive, and industrial markets since 1979.
The 1T1G–1T7G series belongs to TSC's standard rectifier product line, engineered specifically for high-voltage, medium-current switching power conversion where reliability, thermal stability, and compact packaging are critical design constraints.
FAQ
What is the maximum repetitive peak reverse voltage (VRRM) of the 1T7G?
The 1T7G has a VRRM of 1000 V, confirmed in the Absolute Maximum Ratings table on page 2 of the H2104 datasheet. This rating applies across the full operating temperature range (–55°C to +150°C) and defines the highest reverse voltage the device can block repeatedly without breakdown. It is the highest VRRM in the 1T1G–1T7G family.
Does the 1T7G have AEC-Q101 qualification?
The base 1T7G is not AEC-Q101 qualified; however, the variant 1T7GH is explicitly listed as AEC-Q101 qualified in the Ordering Information section (page 3, Note 2). The "H" suffix denotes full qualification including temperature cycling, mechanical shock, and humidity testing per AEC-Q101 Rev D standards.
What is the forward voltage (VF) specification for the 1T7G at rated current?
The 1T7G has a maximum forward voltage of 1.0 V at IF = 1 A and TJ = 25°C, per the Electrical Specifications table (page 2). This value is measured under pulsed conditions (PW = 0.3 ms) and represents worst-case conduction loss for thermal design. At 125°C junction temperature, VF decreases slightly due to semiconductor physics.
What package type does the 1T7G use, and what are its key mechanical features?
The 1T7G uses the TS-1 package: a 3 mm miniature plastic body with pure tin-plated leads compliant with J-STD-002 solderability. It features UL 94V-0 flammability rating, JESD201 Class 2 whisker resistance, cathode polarity marked by band, and approximate weight of 0.200 g. Dimensions are specified in the Package Outline Drawing (page 4).
How does the 1T7G compare to the 1T6G in terms of voltage rating and application scope?
The 1T7G has VRRM = 1000 V versus 1T6G's 800 V, enabling use in higher DC bus systems such as 700 V industrial inverters or 1000 V photovoltaic string inputs. Both share identical IF, IFSM, package, and thermal specs; the 1T7G extends the family's upper voltage boundary without trade-offs in size or surge capability.
1T7G A0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- T-18, Axial
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1000 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 1 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 5 µA @ 1000 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
1T7G A0G FAQ
1.How can I place an order for 1T7G A0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1T7G A0G 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 1T7G A0G reliable?
The price and inventory of 1T7G A0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1T7G A0G is usually 5 days.
3.What payment methods are accepted for 1T7G A0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1T7G A0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1T7G A0G?
1T7G A0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1T7G A0G 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 1T7G A0G?
For technical support, including 1T7G A0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1T7G A0G requirements.
6.How does Aetrix verify that 1T7G A0G is sourced from the original manufacturer or authorized distributors?
All 1T7G A0G 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 1T7G A0G meets industry standards.
7.What is the process for return or replacement of 1T7G A0G?
All 1T7G A0G units undergo pre-shipment inspection (PSI). If there is an issue with 1T7G A0G, 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 1T7G A0G part is unused and in its original packaging.
Return procedure for 1T7G A0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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