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Taiwan Semiconductor Corporation 6A40GH
- Part No.:
- 6A40GH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- R-6, Axial
- Datasheet:
-
6A40GH.pdf
- Description:
- DIODE GEN PURP 400V 6A R-6
- Quantity:
- Payment:
- Shipping:
Inventory:3,796
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Product details
Overview
6A40GH from Taiwan Semiconductor is a glass-passivated, AEC-Q101 qualified standard rectifier diode rated for 400 V repetitive peak reverse voltage (VRRM), 6 A average forward current (IF), and 250 A non-repetitive surge current (IFSM), used in automotive-grade DC-DC converters and switching inverters.
For engineers reviewing the 6A40GH datasheet, 6A40GH pinout, 6A40GH application, or 6A40GH equivalent, key selection criteria include its R-6 package thermal resistance (RθJA = 35 °C/W), low 1.0 V forward voltage at 6 A/25 °C, 10 µA max reverse leakage at 25 °C, junction capacitance of 60 pF, and compliance with JESD201 Class 2 whisker testing.
Technical Context
The 6A40GH implements a single-die silicon PN junction in an axial-leaded R-6 molded package with pure tin-plated leads. Its glass passivation ensures stable surface characteristics under high-humidity and thermal cycling conditions required for automotive power conversion.
Designed for unidirectional conduction, it supports continuous 6 A forward current up to 150 °C junction temperature and withstands 8.3 ms half-sine surge events up to 250 A without degradation-critical for handling inductive kickback in SMPS and motor drive front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 400 V - Maximum reverse voltage the device blocks continuously without breakdown |
| IF | 6 A - Continuous average forward current rating at TA = 75 °C with adequate heatsinking |
| IFSM | 250 A - Peak non-repetitive surge current capability for 8.3 ms half-sine waveform |
| VF @ 6 A, 25 °C | 1.0 V - Forward voltage drop determining conduction loss in high-current paths |
| IR @ 400 V, 25 °C | 10 µA - Reverse leakage current affecting standby power and voltage hold-up integrity |
| RθJA | 35 °C/W - Junction-to-ambient thermal resistance defining required PCB copper area or heatsink size |
| CJ @ 1 MHz, 4 V | 60 pF - Junction capacitance influencing high-frequency switching noise and EMI filtering design |
Pinout & Package
Package: R-6 axial-leaded molded case (UL 94V-0), cathode indicated by band on body, weight ≈ 1.65 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead without band) | Forward current entry node | Connected to lower-potential side (e.g., ground or negative rail) in rectification path |
| Cathode (lead with band) | Forward current exit node | Connected to higher-potential side (e.g., input bus or transformer secondary) and output filter capacitor |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive power modules requiring reliability across -40 °C to +125 °C ambient and 150 °C junction operation |
| Glass-passivated junction | Prevents moisture-induced surface leakage and improves long-term stability in humid environments |
| Low VF (1.0 V @ 6 A) | Reduces conduction losses by ~15% vs. comparable 1.15 V diodes, improving efficiency in 12 V–48 V DC-DC stages |
| JESD201 Class 2 whisker resistance | Ensures tin-plated leads remain solderable and mechanically reliable after 1000+ hours at 150 °C |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Automotive DC-DC Converters | Industrial Switching Inverters |
|---|---|
Use Scenario: High-efficiency 12 V to 48 V bidirectional DC-DC converter in 48 V mild-hybrid vehicles. IC Role / Device Role / Timing Role: Output rectifier handling continuous 6 A load current and absorbing regenerative energy surges. Use Value: 1.0 V VF minimizes heat generation in confined engine-bay layouts; AEC-Q101 qualification ensures 15-year field reliability. | Use Scenario: Input-stage rectification in 3 kW industrial variable-frequency drives feeding three-phase motors. IC Role / Device Role / Timing Role: Single-phase bridge leg component converting AC line to DC bus, subjected to frequent 250 A surge transients. Use Value: 250 A IFSM rating safely clamps inductive flyback spikes without derating; R-6 package enables manual rework and high-voltage creepage spacing. |
| Telecom Power Supplies | Renewable Energy Charge Controllers |
Use Scenario: Secondary-side synchronous rectification replacement in 48 V telecom rectifiers operating at 92% efficiency. IC Role / Device Role / Timing Role: Freewheeling diode in active-clamp forward topology, conducting during MOSFET off-time. Use Value: 60 pF junction capacitance limits ringing and EMI during fast turn-off; 35 °C/W RθJA allows natural convection cooling on double-sided PCBs. | Use Scenario: PV array string-level rectification in off-grid solar charge controllers managing 6 A MPPT current. IC Role / Device Role / Timing Role: Blocking diode preventing battery backfeed into panels at night; exposed to outdoor thermal cycling. Use Value: Glass passivation prevents corrosion-induced leakage rise over 20-year field life; -55 °C to +150 °C TJ range accommodates desert and arctic deployments. |
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, RθJA = 40 °C/W, TO-220AC package | Higher voltage margin but larger footprint and higher conduction loss | Preferred where 600 V blocking is mandatory and board space permits TO-220 mounting |
| ON Semi MUR640CT | 6 A / 400 V, VF = 1.25 V @ 6 A, dual common-cathode configuration, TO-220AB | Dual-diode layout enables full-wave rectification without external wiring | Used when dual-output or center-tapped transformer topologies require matched pair conduction |
Compared with STTH6L06S and MUR640CT, the 6A40GH offers lower VF and smaller R-6 footprint ideal for space-constrained automotive modules, while trading off voltage headroom and dual-diode integration-making it optimal for single-diode, cost-sensitive, high-volume rectification where 400 V rating suffices.
Availability
6A40GH is available at Aetrix Electronics and suitable for automotive DC-DC converters, industrial switching inverters, and renewable energy charge controllers requiring stable component supply with AEC-Q101 assurance and long-lifecycle support.
Supply support for 6A40GH 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 was developed specifically for high-reliability, high-surge rectification in automotive power systems and industrial SMPS, emphasizing glass passivation, AEC-Q101 compliance, and robust R-6 packaging for harsh-environment deployment.
FAQ
What is the maximum junction temperature rating for the 6A40GH?
The 6A40GH has a maximum junction temperature (TJ) rating of +150 °C, verified per AEC-Q101 stress testing. This allows operation in under-hood automotive environments and industrial enclosures without forced cooling, provided the thermal design maintains junction temperature below this limit using its 35 °C/W RθJA.
Is the 6A40GH pin-compatible with other devices in the 6AxxG family?
Yes-the 6A40GH shares identical R-6 package dimensions, lead spacing, and axial pinout with all members of the 6A05G–6A100G family, including 6A05G, 6A10G, 6A20G, 6A60G, and 6A100G. Only the VRRM rating differs; mechanical and soldering compatibility is fully maintained across the series.
Does the 6A40GH meet automotive qualification standards?
Yes-the "H" suffix in 6A40GH explicitly denotes AEC-Q101 qualification. The device undergoes stress tests including HTGB, HTRB, TCT, and UHAST per AEC-Q101 Rev D, and is certified for use in automotive powertrain and chassis systems where reliability under thermal and humidity cycling is critical.
What is the forward voltage specification for the 6A40GH at elevated temperature?
The 6A40GH's forward voltage is specified at 1.0 V maximum at IF = 6 A and TJ = 25 °C. While no high-temperature VF value is published in the datasheet, typical curves show VF decreases ~2 mV/°C above 25 °C due to semiconductor physics-so at TJ = 125 °C, VF is approximately 0.8 V, reducing conduction loss in hot environments.
How does the 6A40GH's junction capacitance affect high-frequency switching performance?
The 6A40GH exhibits 60 pF junction capacitance at 1 MHz and VR = 4.0 V. This value influences reverse recovery behavior and EMI generation during hard-switching transitions. In 100–500 kHz SMPS designs, this capacitance contributes to measurable turn-off ringing, requiring snubber optimization or gate-drive tuning to maintain efficiency and EMC compliance.
6A40GH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- R-6, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- 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
6A40GH FAQ
1.How can I place an order for 6A40GH through Aetrix?
Please submit a Request for Quotation (RFQ) for 6A40GH 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 6A40GH reliable?
The price and inventory of 6A40GH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 6A40GH is usually 5 days.
3.What payment methods are accepted for 6A40GH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6A40GH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6A40GH?
6A40GH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6A40GH 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 6A40GH?
For technical support, including 6A40GH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6A40GH requirements.
6.How does Aetrix verify that 6A40GH is sourced from the original manufacturer or authorized distributors?
All 6A40GH 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 6A40GH meets industry standards.
7.What is the process for return or replacement of 6A40GH?
All 6A40GH units undergo pre-shipment inspection (PSI). If there is an issue with 6A40GH, 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 6A40GH part is unused and in its original packaging.
Return procedure for 6A40GH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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