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Taiwan Semiconductor Corporation P6SMB6.8AH
- Part No.:
- P6SMB6.8AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB6.8AH.pdf
- Description:
- 600W, 6.8V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,083
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Product details
Overview
P6SMB6.8AH from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a nominal breakdown voltage of 6.46–7.14 V, stand-off voltage of 5.80 V, and clamping voltage of 10.5 V at 60 A peak pulse current. It features glass-passivated junction, AEC-Q101 qualification, and is designed for ESD and electrical fast transient protection in automotive and industrial power rails.
For engineers reviewing the P6SMB6.8AH datasheet, P6SMB6.8AH pinout, P6SMB6.8AH application, or P6SMB6.8AH equivalent, key selection criteria include its 600W peak pulse power rating, 10.5 V clamping performance at 60 A, DO-214AA (SMB) package compatibility, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The P6SMB6.8AH operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its minimum breakdown voltage (6.46 V) under 10 mA test current. Its low clamping voltage (10.5 V @ 60 A) limits transient energy delivered to downstream circuitry while maintaining <1 μA leakage above 10 V.
Thermally, it supports operation from –55 °C to +150 °C with 10 °C/W junction-to-case and 55 °C/W junction-to-ambient thermal resistance. It meets ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity requirements and complies with J-STD-020 moisture sensitivity level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.46 V / 7.14 V - defines guaranteed avalanche initiation range under 10 mA test current |
| VWM | 5.80 V - maximum continuous reverse operating voltage before significant leakage |
| VC @ IPPM | 10.5 V @ 60 A - clamped voltage during 10/1000 µs surge, limiting stress on protected ICs |
| PPPSM | 600 W - non-repetitive peak pulse power handling per 10/1000 µs waveform |
| IR @ VWM | <1 µA - ultra-low leakage ensures minimal standby power loss in battery-sensitive systems |
| TJ max | +150 °C - enables use in under-hood automotive environments without derating |
| Response time | <1.0 ps - sub-picosecond turn-on ensures protection against nanosecond-scale ESD events |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, single-diode configuration with cathode band marking. Matte tin-plated leads meet J-STD-002 solderability; polarity is marked by a band indicating cathode terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / transient return path | Connected to system ground or low-impedance return node during clamping |
| Cathode | Protected line connection / high-side transient sink | Connected to the line being protected (e.g., 5 V rail, CAN bus, sensor supply) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and infotainment power rails |
| Glass passivated junction | Enhances long-term reliability and stability of breakdown voltage under thermal cycling and humidity stress |
| Low-profile SMB package | Enables high-density PCB layouts and compatibility with automated SMT placement equipment |
| ISO 7637-2 compliance | Guarantees robustness against load-dump and inductive-switching transients in 12 V vehicle systems |
| Moisture sensitivity level 1 | Eliminates need for dry-pack handling or baking prior to reflow, reducing manufacturing overhead |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V microcontroller supply lines in automotive body control modules exposed to ISO 7637-2 Pulse 2b (load dump) and Pulse 3b (switching noise). IC Role / Device Role: Unidirectional TVS placed between VCC and GND to clamp transients before they reach the MCU's internal LDO or regulator. Use Value: Clamps to 10.5 V at 60 A, preventing overvoltage damage while maintaining system uptime during repeated transients. | Use Scenario: Safeguarding analog front-end inputs of temperature or pressure sensors in factory automation PLCs subjected to EFT bursts per IEC 61000-4-4. IC Role / Device Role: TVS placed across sensor signal and ground to shunt fast-rising common-mode noise coupled onto 4–20 mA or 0–10 V lines. Use Value: Sub-1 ps response captures nanosecond ESD events; <1 µA leakage avoids DC offset errors in precision measurement circuits. |
| LED Lighting Driver Protection | USB Port ESD Suppression |
Use Scenario: Shielding constant-current LED driver ICs in automotive headlamps from inductive kickback generated by relay or MOSFET switching. IC Role / Device Role: TVS connected across driver output to absorb stored inductive energy during turn-off. Use Value: 600 W peak power rating handles repetitive 10/1000 µs surges; 150 °C max junction temperature accommodates under-hood thermal environments. | Use Scenario: Adding secondary-level ESD protection on USB 2.0 VBUS and D+/D− lines in embedded host devices where primary protection resides upstream. IC Role / Device Role: Unidirectional P6SMB6.8AH used on VBUS line to clamp overvoltage from hot-plug or cable discharge events. Use Value: 5.80 V stand-off allows full 5 V USB operation; 10.5 V clamping prevents latch-up or gate oxide damage in USB transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | Same DO-214AA package, identical 6.46–7.14 V VBR, but rated at 600 W with slightly higher VC = 11.2 V @ 60 A | Marginally higher clamping increases risk of overvoltage stress on 5 V logic; otherwise functionally interchangeable | Select P6SMB6.8AH when tighter clamping (10.5 V) is required to protect margin-constrained 5 V ICs |
| 1.5SMC6.8A | Larger DO-214AB (SMC) package; same VBR range but higher thermal mass (RθJA = 40 °C/W vs. 55 °C/W) | Better sustained power handling but incompatible with SMB footprint; requires PCB redesign | Choose only if board layout allows larger SMC footprint and thermal management demands exceed SMB capability |
Compared with SMBJ6.8A and 1.5SMC6.8A, the P6SMB6.8AH delivers the lowest clamping voltage in the SMB form factor and is uniquely AEC-Q101 qualified-making it the preferred choice for space-constrained, automotive-grade 5 V rail protection where voltage margin is critical.
Availability
P6SMB6.8AH is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, LED lighting drivers, and USB power rail protection requiring stable component supply and AEC-Q101 compliance.
Supply support for P6SMB6.8AH 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for automotive, industrial, and consumer markets.
The P6SMB6.8AH belongs to TSC's AEC-Q101-qualified P6SMBx(A)H series-designed specifically for high-reliability transient suppression in 12 V and 24 V automotive subsystems and ruggedized industrial controls.
FAQ
What is the polarity configuration of the P6SMB6.8AH?
The P6SMB6.8AH is a unidirectional TVS diode with cathode marked by a band on the DO-214AA (SMB) package. It conducts in reverse bias during overvoltage events and blocks up to 5.80 V in forward direction. This polarity enables precise clamping on positive-rail transients without interfering with normal 5 V operation.
Does the P6SMB6.8AH meet automotive qualification standards?
Yes, the P6SMB6.8AH is AEC-Q101 qualified and tested per ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b waveforms. Its construction-including glass-passivated junction, matte tin-plated leads, and MSL Level 1 rating-ensures reliability in automotive under-hood and cabin environments where temperature, vibration, and transient stress are elevated.
What is the maximum clamping voltage of the P6SMB6.8AH and at what current is it specified?
The P6SMB6.8AH has a maximum clamping voltage of 10.5 V, measured at 60 A peak pulse current using the standard 10/1000 µs waveform. This value is guaranteed across temperature and process variation, enabling accurate worst-case overvoltage analysis for 5 V logic and power ICs protected by the device.
Can the P6SMB6.8AH be used in bidirectional configurations?
No-the P6SMB6.8AH is unidirectional only. For bidirectional protection, Taiwan Semiconductor offers the P6SMB6.8CAH variant (with "CAH" suffix), which provides symmetrical clamping in both polarities. Using P6SMB6.8AH in reverse-biased AC applications risks permanent failure due to forward conduction beyond its 3.5 V VF rating.
What is the leakage current specification for the P6SMB6.8AH at its stand-off voltage?
The P6SMB6.8AH exhibits maximum reverse leakage current of 1000 µA at its 5.80 V stand-off voltage (VWM). However, typical leakage is less than 1 µA above 10 V, ensuring negligible standby power draw in battery-powered or low-power sensor nodes where quiescent current must be minimized.
P6SMB6.8AH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.8V
- Voltage - Breakdown (Min):
- 6.46V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 60A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB6.8AH FAQ
1.How can I place an order for P6SMB6.8AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB6.8AH 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 P6SMB6.8AH reliable?
The price and inventory of P6SMB6.8AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB6.8AH is usually 5 days.
3.What payment methods are accepted for P6SMB6.8AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB6.8AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB6.8AH?
P6SMB6.8AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB6.8AH 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 P6SMB6.8AH?
For technical support, including P6SMB6.8AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB6.8AH requirements.
6.How does Aetrix verify that P6SMB6.8AH is sourced from the original manufacturer or authorized distributors?
All P6SMB6.8AH 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 P6SMB6.8AH meets industry standards.
7.What is the process for return or replacement of P6SMB6.8AH?
All P6SMB6.8AH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB6.8AH, 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 P6SMB6.8AH part is unused and in its original packaging.
Return procedure for P6SMB6.8AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB6.8AH Tags
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