Taiwan Semiconductor Corporation 6A40GHA0G
- Part No.:
- 6A40GHA0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- R-6, Axial
- Datasheet:
-
6A40GHA0G.pdf
- Description:
- DIODE GEN PURP 400V 6A R-6
- Quantity:
- Payment:

- Shipping:

Inventory:7,417
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Product details
Overview
6A40GHA0G from Taiwan Semiconductor is a 6 A, 400 V AEC-Q101-qualified standard rectifier diode in R-6 package, featuring 1.0 V forward voltage at 6 A and 250 A surge capability, used in automotive-grade DC-DC converters and switching inverters.
For engineers reviewing the 6A40GHA0G datasheet, 6A40GHA0G pinout, 6A40GHA0G application, or 6A40GHA0G equivalent, key selection criteria include its AEC-Q101 qualification, 400 V repetitive peak reverse voltage, 1.0 V VF at 6 A, R-6 mechanical outline, and 700-unit ammo box packaging option.
Technical Context
This device is a single-die, glass-passivated silicon junction rectifier optimized for high-reliability automotive power conversion. Its 150 °C maximum junction temperature and JESD201 Class 2 whisker resistance support under-hood deployment.
The 6A40GHA0G delivers low conduction loss (VF = 1.0 V @ 6 A, 25 °C) and high surge robustness (IFSM = 250 A, 8.3 ms half-sine), with thermal resistance RθJA = 35 °C/W enabling operation without forced cooling in ambient up to 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - supports input rectification in 28 V automotive systems with 14 V nominal and transient spikes up to 40 V. |
| IF | 6 A continuous - sustains steady-state current in mid-power DC-DC stages without derating below 75 °C ambient. |
| IFSM | 250 A - withstands cold-crank surges and load-dump transients in vehicle electrical systems. |
| VF @ 6 A | 1.0 V - reduces conduction loss to 6 W per device, critical for thermal management in sealed enclosures. |
| TJ max | 150 °C - enables placement near heat-generating components in engine control units and ADAS modules. |
| RθJA | 35 °C/W - allows PCB-mount operation with minimal copper area; no heatsink required for ≤3 W dissipation. |
| IR @ 125°C | 100 µA - ensures low leakage in high-temperature battery monitoring circuits where standby current must be minimized. |
Pinout & Package
Package: R-6 molded case with pure tin-plated leads, UL 94V-0 rated compound, cathode indicated by band, weight ≈1.65 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to unregulated input rail; must handle full 6 A DC plus ripple current. |
| Cathode | Current exit point during forward conduction | Connected to output filter capacitor or switching node; polarity marking ensures correct orientation on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power supplies. |
| Glass passivated junction | Prevents moisture-induced degradation and improves long-term reliability in humid under-hood environments. |
| Low VF (1.0 V) | Reduces power loss by ~15% versus comparable 1.15 V diodes, directly lowering thermal stress in compact modules. |
| Junction capacitance (60 pF) | Minimizes switching noise and EMI in 100–500 kHz SMPS designs without requiring snubbers. |
| Halogen-free (IEC 61249-2-21) | Complies with automotive RoHS and ELV directives, supporting end-of-life recycling requirements. |
Applications
| Automotive DC-DC Converters | Industrial Switching Inverters |
|---|---|
Use Scenario: Primary-side rectification in 12 V to 5 V/3.3 V buck converters for infotainment head units and telematics gateways. IC Role / Device Role / Timing Role: Standard rectifier providing unidirectional current flow and voltage step-down via synchronous or diode-based topology. Use Value: AEC-Q101 rating ensures functional safety compliance; 250 A IFSM handles ignition transients without failure. | Use Scenario: Output rectification in 48 V to 380 V boost inverters for energy storage systems and UPS backup modules. IC Role / Device Role / Timing Role: High-current freewheeling and output rectification path in hard-switched topologies operating up to 200 kHz. Use Value: 1.0 V VF minimizes conduction loss at 6 A average current, improving system efficiency by ≥0.8% over 1.1 V alternatives. |
| On-Board Charger (OBC) Auxiliary Supplies | Motor Drive Power Stage Protection |
Use Scenario: Auxiliary bias supply rectification in 400 V OBC main converters, powering gate drivers and MCU rails. IC Role / Device Role / Timing Role: Input rectifier feeding isolated flyback or forward converter primary winding. Use Value: 400 V VRRM provides 2× margin over 200 V reflected auxiliary bus, ensuring robustness against reflected transients. | Use Scenario: Freewheeling path across IGBTs in 3-phase traction inverter half-bridges for e-bikes and light EVs. IC Role / Device Role / Timing Role: Clamping diode conducting reverse recovery current during IGBT turn-off. Use Value: Low CJ (60 pF) limits displacement current during fast dv/dt events, reducing gate oscillation risk in high-speed switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar standard rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH6L06S | 6 A, 600 V, VF = 1.15 V @ 6 A, TO-220AC package, non-AEC-Q101 | Higher voltage rating but larger footprint and no automotive qualification | Preferred for industrial 600 V systems where space and qualification are not constraints |
| ON Semi MUR640CT | 6 A, 400 V, VF = 1.25 V @ 6 A, TO-220AB dual common-cathode, AEC-Q101 optional | Dual-diode configuration enables center-tapped rectification; higher VF increases conduction loss | Used when dual-output or symmetrical rectification is required; requires layout change |
Compared with STTH6L06S and MUR640CT, the 6A40GHA0G offers the lowest VF (1.0 V) in R-6 form factor with mandatory AEC-Q101 certification-making it optimal for space-constrained, thermally sensitive automotive modules where single-diode rectification suffices.
Availability
6A40GHA0G is available at Aetrix Electronics and suitable for automotive power supplies, industrial DC-DC converters, and motor drive auxiliary circuits requiring stable component supply with AEC-Q101 assurance and traceable sourcing.
Supply support for 6A40GHA0G 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 6AxxG series targets high-reliability rectification in harsh-environment applications, with design emphasis on AEC-Q101 compliance, low VF, and robust surge handling for next-generation vehicle electrification systems.
FAQ
What is the AEC-Q101 qualification status of the 6A40GHA0G?
The 6A40GHA0G is fully AEC-Q101 qualified, meaning it has passed stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing specifically for discrete semiconductors in automotive applications. This qualification is confirmed in TSC's F2104 datasheet revision and applies to all "H" suffix variants in the 6AxxG family, including the 6A40GHA0G.
What does the "A0G" suffix mean in 6A40GHA0G?
The "A0G" suffix in 6A40GHA0G indicates 700-unit ammo box packaging with green molding compound. Per TSC's ordering code table, "A0G" denotes the R-6 packaged device supplied in bulk ammo boxes (not tape-and-reel), and "G" confirms halogen-free material per IEC 61249-2-21. The "H" confirms AEC-Q101 qualification.
Can the 6A40GHA0G replace the 6A40GH in a design?
Yes-the 6A40GHA0G and 6A40GH share identical electrical and thermal specifications, junction-to-ambient resistance, and R-6 mechanical outline. The only difference is packaging: 6A40GH ships in 1,000-unit tape-and-reel, while 6A40GHA0G uses 700-unit ammo box. No circuit or layout changes are needed when substituting the 6A40GHA0G for the 6A40GH.
What is the maximum allowable ambient temperature for continuous 6 A operation of the 6A40GHA0G?
At 6 A continuous forward current, the 6A40GHA0G reaches its 150 °C maximum junction temperature at approximately 75 °C ambient, based on its RθJA = 35 °C/W and VF = 1.0 V (6 W dissipation). Derating is required above this ambient; the forward current derating curve in TSC's datasheet shows 4.5 A maximum at 100 °C ambient.
Does the 6A40GHA0G have a specified reverse recovery time (trr)?
No-TSC's datasheet for the 6A40GHA0G does not specify reverse recovery time (trr) because it is a standard (non-fast-recovery or ultrafast) rectifier. The device is characterized by forward voltage, leakage, and surge performance-not switching speed. For applications requiring trr < 500 ns, a dedicated fast-recovery or soft-recovery diode such as the 6A40GFA0G (if offered) would be required instead of the 6A40GHA0G.
6A40GHA0G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- R-6, Axial
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 400 V
- Current - Average Rectified (Io):
- 6A
- Voltage - Forward (Vf) (Max) @ If:
- 1 V @ 6 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 10 µA @ 400 V
- Capacitance @ Vr, F:
- 60pF @ 4V, 1MHz
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- R-6
- Operating Temperature - Junction:
- -55°C ~ 150°C
6A40GHA0G FAQ
1.How can I place an order for 6A40GHA0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 6A40GHA0G 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 6A40GHA0G reliable?
The price and inventory of 6A40GHA0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 6A40GHA0G is usually 5 days.
3.What payment methods are accepted for 6A40GHA0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6A40GHA0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6A40GHA0G?
6A40GHA0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6A40GHA0G 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 6A40GHA0G?
For technical support, including 6A40GHA0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6A40GHA0G requirements.
6.How does Aetrix verify that 6A40GHA0G is sourced from the original manufacturer or authorized distributors?
All 6A40GHA0G 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 6A40GHA0G meets industry standards.
7.What is the process for return or replacement of 6A40GHA0G?
All 6A40GHA0G units undergo pre-shipment inspection (PSI). If there is an issue with 6A40GHA0G, 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 6A40GHA0G part is unused and in its original packaging.
Return procedure for 6A40GHA0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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