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Taiwan Semiconductor Corporation P6SMB8.2CH
- Part No.:
- P6SMB8.2CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2CH.pdf
- Description:
- 600W, 8.2V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,802
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Product details
Overview
P6SMB8.2CH from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode designed for automotive-grade ESD and surge protection in power rails and signal lines. It features a breakdown voltage range of 7.38–9.02 V at 10 mA, clamps transients to ≤12.5 V at 50 A peak pulse current, and meets ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity requirements. It is used in automotive lighting control modules to protect microcontroller I/O and CAN transceiver power inputs.
For engineers reviewing the P6SMB8.2CH datasheet, P6SMB8.2CH pinout, P6SMB8.2CH application, or P6SMB8.2CH equivalent, this page delivers verified electrical specs, DO-214AA package details, AEC-Q101 qualification status, clamping performance at rated IPPM, and direct alternatives with documented VBR, VC, and VWM differences.
Technical Context
The P6SMB8.2CH operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its specified VBR min (7.38 V), with fast response time <1.0 ps from 0 V to VBR min. Its glass-passivated junction ensures stable breakdown behavior under repetitive surge stress.
It is rated for 600 W non-repetitive peak pulse power (10/1000 µs waveform), supports 100 A forward surge current (8.3 ms half-sine), and maintains junction temperature between –55 °C and +150 °C. Thermal resistance RθJC is 10 °C/W, enabling reliable operation in compact automotive PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.38 V / 9.02 V - defines guaranteed avalanche initiation window at 10 mA test current |
| VWM | 6.63 V - maximum continuous reverse operating voltage before leakage exceeds 200 µA |
| VC @ IPPM | 12.5 V at 50 A - peak clamped voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPPSM | 600 W - peak pulse power handling capacity per single transient event |
| IR @ VWM | <200 µA - low leakage ensures minimal standby power loss in always-on circuits |
| TJ max | +150 °C - enables placement near heat sources like power MOSFETs in engine control units |
| AEC-Q101 | Qualified - validated for automotive underhood and cabin applications per stress test requirements |
Pinout & Package
Package: DO-214AA (SMB), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance. Polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or lower-potential rail; conducts during positive surges on cathode side |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., 12 V supply); initiates clamping when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, HTRB, and surge endurance per Rev G test plan |
| Glass passivated junction | Ensures consistent VBR tolerance and long-term stability under humidity and thermal stress |
| Clamping ratio (VC/VBR) | 1.69 (12.5 V / 7.38 V) - low ratio minimizes overvoltage exposure to protected ICs |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) |
| Moisture sensitivity level | MSL 1 - no floor life limitation; safe for standard SMT reflow without baking |
Applications
| Automotive Lighting Control | Body Control Module (BCM) Power Input |
|---|---|
Use Scenario: Protecting LED driver ICs and microcontroller GPIOs from load-dump transients during headlight switching. IC Role / Device Role: Unidirectional TVS placed between 12 V rail and ground, clamping negative-going spikes induced by relay coil de-energization. Use Value: Limits voltage excursion to ≤12.5 V, preventing latch-up or gate oxide damage in 5 V logic-level drivers. |
Use Scenario: Safeguarding 5 V LDO regulators and CAN transceivers against battery line surges in door module PCBs. IC Role / Device Role: Primary rail clamp on main 12 V input, absorbing up to 600 W of energy from ISO 7637-2 Pulse 1 events. Use Value: Maintains regulated output stability by preventing upstream rail collapse during 100 V/50 ms transients. |
| Infotainment Display Backlight | Engine Control Unit (ECU) Sensor Interface |
Use Scenario: Shielding white LED backlight drivers from ESD events during assembly and field operation. IC Role / Device Role: Localized TVS at driver output node, shunting human-body-model (HBM) discharges before reaching current-sense amplifiers. Use Value: Achieves <1 µA leakage at 6.63 V, eliminating background current error in precision dimming feedback loops. |
Use Scenario: Protecting analog sensor signal conditioning circuits (e.g., MAP, TPS) from coupled transients on harness wiring. IC Role / Device Role: Bidirectional-capable variant (P6SMB8.2AH) used across differential pairs; P6SMB8.2CH applied to single-ended supply rails. Use Value: Clamps 50 A pulses within 12.5 V, preserving ADC reference integrity and avoiding false fault detection. |
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 | VBR = 8.89–9.82 V, VC = 12.7 V @ 49.6 A, PPPSM = 600 W | Higher VBR and VC reduce margin for 8.2 V nominal systems | Select when tighter VBR tolerance (±5%) is required over absolute clamping voltage minimization |
| 1.5SMC8.2A | VBR = 7.38–8.62 V, VC = 12.5 V @ 48.0 A, PPPSM = 1500 W, package: DO-214AB (SMC) | Larger SMC package increases board area but improves thermal dissipation for high-duty-cycle surges | Choose for industrial motor drives where 1500 W rating and lower RθJA (35 °C/W) outweigh space constraints |
Compared with P6SMB8.2CH, SMBJ8.0A offers tighter VBR tolerance but higher clamping voltage, while 1.5SMC8.2A provides triple the pulse power rating in a larger footprint-enabling longer surge duration handling in harsher environments.
Availability
P6SMB8.2CH is available at Aetrix Electronics and suitable for automotive lighting control, body control module power inputs, and infotainment display protection requiring stable component supply across extended production lifecycles.
Supply support for P6SMB8.2CH 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, and rectifiers for automotive and industrial markets.
The P6SMB series was developed specifically for AEC-Q101-compliant transient suppression in space-constrained automotive ECUs, emphasizing low-profile DO-214AA packaging, robust clamping consistency, and ISO 7637-2 immunity.
FAQ
What is the polarity configuration of the P6SMB8.2CH?
The P6SMB8.2CH is a unidirectional TVS diode, with cathode marked by a band on the DO-214AA package. It conducts only during reverse-biased overvoltage events-clamping positive transients on the cathode side relative to anode (ground). This configuration prevents forward conduction during normal 12 V operation, unlike bidirectional variants such as P6SMB8.2AH.
Does the P6SMB8.2CH meet automotive reliability standards?
Yes, the P6SMB8.2CH is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and surge endurance per the AEC-Q101 Rev G standard. Its glass-passivated junction and MSL 1 moisture rating further validate suitability for under-hood and cabin automotive applications.
What is the maximum clamping voltage of the P6SMB8.2CH at rated peak pulse current?
The P6SMB8.2CH clamps to a maximum of 12.5 V at 50 A peak pulse current (10/1000 µs waveform), as specified in the Electrical Specifications table. This value is measured under standardized surge conditions and represents the worst-case voltage seen by downstream circuitry during transient events.
Can the P6SMB8.2CH be used in bidirectional protection circuits?
No-the P6SMB8.2CH is unidirectional and not rated for symmetrical clamping in both polarities. For bidirectional protection, use the P6SMB8.2AH variant, which features matched breakdown characteristics in both directions and is explicitly designated for bipolar applications per the datasheet's "Devices for Bipolar Applications" section.
How does the P6SMB8.2CH compare to the P6SMB8.2AH in terms of key parameters?
The P6SMB8.2CH has VBR = 7.38–9.02 V and VC = 12.5 V @ 50 A, while the P6SMB8.2AH has tighter VBR = 7.79–8.61 V and slightly lower VC = 12.1 V @ 52 A. The AH version is bidirectional and intended for AC-coupled or differential signal protection, whereas the CH version is optimized for DC rail clamping with asymmetric conduction.
P6SMB8.2CH 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):
- 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)
P6SMB8.2CH FAQ
1.How can I place an order for P6SMB8.2CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2CH 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 P6SMB8.2CH reliable?
The price and inventory of P6SMB8.2CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB8.2CH is usually 5 days.
3.What payment methods are accepted for P6SMB8.2CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2CH?
P6SMB8.2CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2CH 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 P6SMB8.2CH?
For technical support, including P6SMB8.2CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2CH requirements.
6.How does Aetrix verify that P6SMB8.2CH is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2CH 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 P6SMB8.2CH meets industry standards.
7.What is the process for return or replacement of P6SMB8.2CH?
All P6SMB8.2CH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2CH, 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 P6SMB8.2CH part is unused and in its original packaging.
Return procedure for P6SMB8.2CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2CH Tags
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