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Taiwan Semiconductor Corporation P6SMB8.2H
- Part No.:
- P6SMB8.2H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2H.pdf
- Description:
- 600W, 8.2V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,937
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Product details
Overview
P6SMB8.2H from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a breakdown voltage range of 7.38–9.02 V, clamping voltage of 12.5 V at 50 A peak pulse current, and stand-off voltage of 6.63 V. It protects automotive and industrial electronics against ESD, lightning-induced surges, and inductive switching transients.
For engineers reviewing the P6SMB8.2H datasheet, P6SMB8.2H pinout, P6SMB8.2H application, or P6SMB8.2H equivalent, key selection criteria include its DO-214AA (SMB) package compatibility, AEC-Q101 qualification, 1.0 ps response time, and compliance with ISO 7637-2 Pulse 1/2a/2b/3a/3b for automotive load-dump immunity.
Technical Context
The P6SMB8.2H employs a glass-passivated silicon junction optimized for fast transient suppression with typical reverse leakage <1 µA at 6.63 V and clamping ratio (VC/VBR) of ~1.65. Its thermal design supports 150°C maximum junction temperature and 55°C/W junction-to-ambient resistance.
It operates as a unidirectional avalanche diode-cathode-marked-requiring correct polarity placement in series with protected IC inputs or power rails. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability standards for PCB-mounted reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.38 V / 9.02 V - defines minimum and maximum guaranteed avalanche onset under 10 mA test current; sets lower bound for overvoltage triggering threshold |
| VWM | 6.63 V - maximum continuous reverse working voltage; circuit must operate below this to avoid leakage-induced power loss or false triggering |
| VC@IPPM | 12.5 V @ 50 A - clamped voltage during 10/1000 µs surge; determines worst-case overvoltage seen by downstream ICs |
| PPPSM | 600 W - peak pulse power rating for non-repetitive 10/1000 µs waveform; defines single-event surge energy handling capability |
| IR @ VWM | <200 µA - reverse leakage at rated stand-off voltage; ensures minimal standby current draw in battery-powered systems |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments without derating |
| Response time | <1.0 ps - time from 0 V to VBR min; ensures suppression before sensitive logic or analog circuits are damaged |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, cathode-indicated by band on one end. Dimensions per JEDEC MS-013AC: length 4.57 mm, width 3.94 mm, height 2.29 mm. Matte tin-plated leads meet J-STD-002 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-impedance return path; forms current sink during transient clamp event |
| Cathode (banded end) | High-side connection point | Connected to protected line (e.g., CAN_H, LIN, sensor supply); blocks normal operation but conducts during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan |
| Glass-passivated junction | Enhances long-term stability and moisture resistance vs. epoxy-passivated alternatives; critical for under-hood longevity |
| ISO 7637-2 compliant | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) waveforms |
| Moisture sensitivity level 1 | No floor life limitation or bake requirement prior to reflow; simplifies SMT assembly logistics |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive 2011/65/EU; suitable for green manufacturing programs |
Applications
| Automotive LIN Bus Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protects LIN transceivers from battery feed transients and ESD events in body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between LIN bus line and ground to clamp negative-going spikes and positive load-dump surges. Use Value: Limits voltage to ≤12.5 V during 50 A surge, preventing damage to LIN PHY while maintaining signal integrity below 6.63 V during normal operation. | Use Scenario: Shields 4–20 mA current-loop sensors in factory automation from cable-coupled surges and field ESD. IC Role / Device Role / Timing Role: Placed across sensor output terminals to shunt transient energy before it reaches precision op-amps or ADC front-ends. Use Value: Clamps 10/1000 µs surges to 12.5 V with sub-1 ps response, preserving measurement accuracy and avoiding latch-up in analog signal chains. |
| LED Driver Input Protection | Automotive Power Supply Rail Clamp |
Use Scenario: Safeguards constant-current LED drivers from load-dump transients in headlamp and tail-light modules. IC Role / Device Role / Timing Role: Connected between input VIN and GND to absorb 600 W pulses without failure or parameter shift. Use Value: Withstands ≥1000 cycles of 12.5 V clamping at 50 A, enabling robust operation in 12 V automotive electrical systems. | Use Scenario: Installed on 12 V main power rail upstream of PMICs in infotainment head units to prevent overvoltage damage. IC Role / Device Role / Timing Role: Acts as primary rail-level clamp, triggered before internal LDOs or buck converters reach destructive thresholds. Use Value: Provides 6.63 V stand-off margin above nominal 5.5 V logic supply, ensuring no conduction during normal startup or brownout conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Bidirectional configuration; VBR = 8.89–9.83 V; VC = 13.6 V @ 44.1 A; same DO-214AA package | Supports AC-coupled lines (e.g., RS-485, USB D+/D−); not suitable where DC polarity must be preserved | Select SMBJ8.0A only when bidirectional protection is required and clamping voltage margin allows. |
| 1.5SMC8.2A | Higher power rating (1500 W); larger DO-214AB (SMC) package; VBR = 7.38–9.02 V; VC = 12.5 V @ 120 A | Used in high-energy industrial motor drives; requires larger PCB footprint and different thermal layout | Choose 1.5SMC8.2A only when surge energy exceeds 600 W or system-level testing demands higher IPPM headroom. |
Compared with SMBJ8.0A and 1.5SMC8.2A, the P6SMB8.2H offers optimal balance of compact DO-214AA footprint, AEC-Q101 qualification, and precise 6.63 V stand-off for 5 V–12 V automotive subsystems-making it preferred for space-constrained, high-reliability unidirectional clamping.
Availability
P6SMB8.2H is available at Aetrix Electronics and suitable for automotive LIN bus protection, industrial sensor interface hardening, and LED driver input surge suppression requiring stable component supply across production lifecycles.
Supply support for P6SMB8.2H 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 P6SMB series belongs to TSC's AEC-Q101-qualified surface-mount TVS portfolio, engineered specifically for ISO 7637-2-compliant automotive transient immunity and high-volume automated assembly in DO-214AA packaging.
FAQ
What is the polarity configuration of the P6SMB8.2H?
The P6SMB8.2H is a unidirectional TVS diode with cathode indicated by a band on the package. It conducts only during positive transients on the cathode side relative to anode (ground). This configuration prevents reverse conduction during normal DC operation and ensures precise clamping directionality in 12 V automotive power domains. The P6SMB8.2H must be oriented with the banded end toward the protected line.
Does the P6SMB8.2H meet automotive qualification standards?
Yes, the P6SMB8.2H is AEC-Q101 qualified and tested per the full stress test schedule including HTGB, HTRB, temperature cycling, and ESD. It also complies with ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b waveforms-making it suitable for under-hood and cabin ECUs where transient immunity is mandated. The P6SMB8.2H's DO-214AA package and moisture sensitivity level 1 further support automotive manufacturing requirements.
What is the maximum clamping voltage of the P6SMB8.2H under surge conditions?
The P6SMB8.2H has a maximum clamping voltage (VC) of 12.5 V at 50 A peak pulse current with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and represents the worst-case voltage imposed on protected circuitry during standardized surge events. The P6SMB8.2H maintains this clamping performance across its full operating temperature range (–55 °C to +150 °C) without degradation.
Can the P6SMB8.2H be used in bidirectional signal lines like RS-485?
No-the P6SMB8.2H is unidirectional and unsuitable for AC or bidirectional data lines without external circuitry. For RS-485, CAN, or USB applications requiring symmetrical surge suppression, a bidirectional variant such as P6SMB8.2AH (with CH suffix) or SMBJ8.0A should be selected instead. Using the P6SMB8.2H on bidirectional lines risks forward conduction during negative half-cycles and potential signal distortion or device failure.
What is the thermal resistance profile of the P6SMB8.2H?
The P6SMB8.2H has a junction-to-case thermal resistance (RθJC) of 10 °C/W and junction-to-ambient resistance (RθJA) of 55 °C/W at standard PCB mounting conditions. These values enable reliable operation up to 150 °C junction temperature under pulsed loading. The P6SMB8.2H's low RθJA is achieved via its DO-214AA copper leadframe and optimized die attach-critical for sustained surge duty in thermally constrained automotive modules.
P6SMB8.2H 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):
- 6.63V
- Voltage - Breakdown (Min):
- 7.38V
- Voltage - Clamping (Max) @ Ipp:
- 12.5V
- Current - Peak Pulse (10/1000µs):
- 50A
- 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)
P6SMB8.2H FAQ
1.How can I place an order for P6SMB8.2H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2H 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 P6SMB8.2H reliable?
The price and inventory of P6SMB8.2H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB8.2H is usually 5 days.
3.What payment methods are accepted for P6SMB8.2H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2H?
P6SMB8.2H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2H 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 P6SMB8.2H?
For technical support, including P6SMB8.2H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2H requirements.
6.How does Aetrix verify that P6SMB8.2H is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2H 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 P6SMB8.2H meets industry standards.
7.What is the process for return or replacement of P6SMB8.2H?
All P6SMB8.2H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2H, 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 P6SMB8.2H part is unused and in its original packaging.
Return procedure for P6SMB8.2H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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