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Taiwan Semiconductor Corporation P6SMB6.8CH
- Part No.:
- P6SMB6.8CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB6.8CH.pdf
- Description:
- 600W, 6.8V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,608
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Product details
Overview
P6SMB6.8CH from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a 6.8V breakdown voltage, 5.5V stand-off voltage, and 10.8V clamping voltage at 58A peak pulse current. It features AEC-Q101 qualification, glass passivated junction, and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump and EFT immunity.
For engineers reviewing the P6SMB6.8CH datasheet, P6SMB6.8CH pinout, P6SMB6.8CH application, or P6SMB6.8CH equivalent, this device is selected for robust ESD and surge protection in low-voltage automotive power rails, LED driver inputs, and microcontroller I/O interfaces where fast response (<1.0 ps), low leakage (<1000 µA @ 5.5V), and DO-214AA package compatibility are critical.
Technical Context
The P6SMB6.8CH operates as a unidirectional avalanche diode, clamping transients above its 6.12–7.48V breakdown range (tested at 10mA) while maintaining a maximum reverse leakage of 1000 µA at 5.5V stand-off. Its 10.8V clamping voltage at 58A ensures safe voltage limiting during 10/1000µs surges.
Thermally, it supports operation from –55°C to +150°C with RθJC = 10°C/W and RθJA = 55°C/W. The DO-214AA (SMB) package enables automated placement and complies with JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR Min/Max | 6.12 V / 7.48 V - defines guaranteed avalanche conduction onset window under 10 mA test current |
| VWM | 5.5 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 10.8 V @ 58 A - clamped voltage during 10/1000µs surge, limiting downstream IC stress |
| PPPSM | 600 W - non-repetitive peak pulse power handling per standard waveform |
| IR @ VWM | <1000 µA - ensures minimal standby power loss in battery-sensitive systems |
| TJ Range | –55°C to +150°C - supports under-hood automotive and industrial ambient conditions |
| Response Time | <1.0 ps - enables suppression of ultrafast ESD events before circuit damage occurs |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, cathode-banded unidirectional configuration. Matte tin-plated leads, UL 94V-0 molding compound, 0.090 g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to protected line's low-side or ground reference during clamping |
| Cathode | Reverse-biased terminal / Clamping node | Connected to protected line (e.g., 5V rail); conducts when transient exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Glass passivated junction | Enhances long-term stability and reduces parameter drift under thermal stress |
| ISO 7637-2 compliance | Withstands defined automotive transients (Pulse 1, 2a, 2b, 3a, 3b) without degradation |
| Low profile SMB package | Enables high-density PCB layouts and compatibility with standard SMT reflow profiles |
| Moisture sensitivity Level 1 | Eliminates bake requirements prior to assembly, reducing manufacturing overhead |
Applications
| Automotive Power Rail Protection | LED Driver Input Protection |
|---|---|
Use Scenario: Protecting 5V/12V supply lines in body control modules from load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient overvoltage on power input before reaching LDOs or MCUs. Use Value: Limits voltage to ≤10.8V during 600W surges, preventing latch-up or permanent damage to downstream regulators. | Use Scenario: Safeguarding constant-current LED drivers against ESD events during handling or system integration. IC Role / Device Role / Timing Role: Fast-acting shunt element absorbing ±8kV contact ESD per IEC 61000-4-2 before reaching driver IC pins. Use Value: Sub-ns response ensures clamping occurs within first 100ps of ESD event, preserving driver functionality. |
| Microcontroller I/O Line Protection | Industrial Sensor Interface Protection |
Use Scenario: Shielding UART, CAN, or LIN bus pins on automotive ECUs from coupled transients and EFT bursts. IC Role / Device Role / Timing Role: Standby-mode protector with <1000 µA leakage at 5.5V, enabling low-power sleep states. Use Value: Maintains signal integrity while adding only 0.5 pF capacitance (typical), avoiding data rate degradation. | Use Scenario: Securing analog sensor inputs (e.g., pressure, temperature) in factory automation equipment exposed to relay switching noise. IC Role / Device Role / Timing Role: Bidirectional-capable variant (P6SMB6.8CH) provides symmetric clamping for AC-coupled signals. Use Value: 10.8V clamping holds sensor output within ADC input range during 10/1000µs inductive spikes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | Same DO-214AA package; 6.46–7.14V VBR, 10.5V VC @ 60A, 600W rating | Lower clamping voltage (10.5V vs. 10.8V); tighter VBR tolerance | Select SMBJ6.8A when margin below 10.5V is required for 5V logic protection |
| 1.5SMC6.8A | DO-214AB (SMC) package; same electrical specs but larger footprint and higher RθJA (40°C/W) | Requires PCB area increase; better thermal dissipation in high-ambient environments | Choose 1.5SMC6.8A only if board layout allows SMC and thermal derating is needed above 85°C |
Compared with SMBJ6.8A and 1.5SMC6.8A, the P6SMB6.8CH offers identical surge rating in a smaller SMB footprint and AEC-Q101 validation-making it optimal for space-constrained automotive modules where qualification and size are decisive.
Availability
P6SMB6.8CH is available at Aetrix Electronics and suitable for automotive electronics, LED lighting systems, and industrial sensor interfaces requiring stable component supply across extended temperature ranges and high-reliability production cycles.
Supply support for P6SMB6.8CH 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 with global distribution and AEC-Q101 certification capability.
The P6SMB series belongs to TSC's automotive-grade transient suppression portfolio, engineered specifically for ISO 7637-2 compliance and under-hood deployment in passenger vehicles and commercial transport systems.
FAQ
What is the polarity configuration of the P6SMB6.8CH?
The P6SMB6.8CH is a unidirectional TVS diode with cathode band marking. It conducts only during reverse overvoltage events-ideal for DC power rail protection where polarity is fixed. Unlike bidirectional variants (e.g., P6SMB6.8AH), it does not clamp positive transients on the anode side. This makes P6SMB6.8CH appropriate for protecting regulated 5V supplies where forward conduction must be avoided.
Does the P6SMB6.8CH meet automotive qualification standards?
Yes, the P6SMB6.8CH is AEC-Q101 qualified and explicitly tested to ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b waveforms. Its construction-including glass passivated junction, JESD201 Class 2 whisker resistance, and J-STD-020 Level 1 moisture sensitivity-confirms suitability for automotive powertrain and body electronics. P6SMB6.8CH is not intended for safety-critical airbag or braking systems per TSC's notice.
What is the maximum clamping voltage of the P6SMB6.8CH and under what test condition?
The P6SMB6.8CH has a maximum clamping voltage (VC) of 10.8 V, measured at 58 A peak pulse current using the standardized 10/1000 µs double-exponential waveform. This value is guaranteed across the full operating temperature range (–55°C to +150°C) and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
How does the P6SMB6.8CH compare to the P6SMB6.8AH variant?
The P6SMB6.8CH has a VBR range of 6.12–7.48 V (min/max) and is unidirectional; the P6SMB6.8AH has a tighter 6.46–7.14 V VBR range and is bidirectional. Both share the same 600W rating and DO-214AA package, but P6SMB6.8AH clamps in both directions-making it suitable for AC signal lines. P6SMB6.8CH is preferred for DC power rails where lower cost and unidirectional behavior are advantageous.
Is the P6SMB6.8CH RoHS and halogen-free compliant?
Yes, the P6SMB6.8CH is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated per J-STD-002 solderability requirements. These attributes support compliance with EU environmental directives and facilitate lead-free reflow assembly without compromising reliability or thermal performance.
P6SMB6.8CH 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5.5V
- Voltage - Breakdown (Min):
- 6.12V
- Voltage - Clamping (Max) @ Ipp:
- 10.8V
- Current - Peak Pulse (10/1000µs):
- 58A
- 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)
P6SMB6.8CH FAQ
1.How can I place an order for P6SMB6.8CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB6.8CH 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 P6SMB6.8CH reliable?
The price and inventory of P6SMB6.8CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB6.8CH is usually 5 days.
3.What payment methods are accepted for P6SMB6.8CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB6.8CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB6.8CH?
P6SMB6.8CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB6.8CH 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 P6SMB6.8CH?
For technical support, including P6SMB6.8CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB6.8CH requirements.
6.How does Aetrix verify that P6SMB6.8CH is sourced from the original manufacturer or authorized distributors?
All P6SMB6.8CH 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 P6SMB6.8CH meets industry standards.
7.What is the process for return or replacement of P6SMB6.8CH?
All P6SMB6.8CH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB6.8CH, 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 P6SMB6.8CH part is unused and in its original packaging.
Return procedure for P6SMB6.8CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB6.8CH Tags
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