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Taiwan Semiconductor Corporation P6SMB82CAH
- Part No.:
- P6SMB82CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB82CAH.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,609
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Product details
Overview
P6SMB82CAH from Taiwan Semiconductor is a bidirectional 600W surface-mount Transient Voltage Suppressor (TVS) diode in DO-214AA (SMB) package, with breakdown voltage range 77.9–86.1 V, clamping voltage 113 V at 5.5 A peak pulse current, and AEC-Q101 qualification for automotive use.
For engineers reviewing the P6SMB82CAH datasheet, P6SMB82CAH pinout, P6SMB82CAH application, or P6SMB82CAH equivalent, this device is selected for ESD and ISO 7637-2 Pulse 1/2a/2b/3a/3b transient protection in automotive power electronics, lighting control modules, and industrial sensor interfaces where low-leakage (<1 µA @ 70.1 V), fast response (<1.0 ps), and robust clamping are required.
Technical Context
P6SMB82CAH is a bipolar (bidirectional) TVS diode designed to protect sensitive circuitry from high-energy transients in both polarity directions. Its glass-passivated junction ensures stable breakdown characteristics and low leakage, while its 10/1000 µs waveform rating supports compliance with ISO 7637-2 test pulses.
The device operates across -55°C to +150°C junction temperature range, features 10 °C/W junction-to-case thermal resistance, and maintains clamping performance under repetitive surge conditions when derated per ambient temperature (Fig.2). Its 70.1 V stand-off voltage enables reliable blocking during normal operation while allowing rapid conduction above 77.9 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 77.9 V / 86.1 V - Ensures consistent avalanche initiation across production units and temperature |
| VWM | 70.1 V - Maximum continuous reverse operating voltage without significant leakage |
| VC @ IPPM | 113 V at 5.5 A - Clamped voltage during 10/1000 µs transient; defines protected circuit's maximum stress level |
| PPPSM | 600 W - Peak pulse power handling capability per single 10/1000 µs event |
| IR @ VWM | <1 µA - Minimal standby current draw; critical for low-power automotive modules |
| TJ max | +150 °C - Enables placement near heat-generating components in engine bay or powertrain ECUs |
| Package | DO-214AA (SMB) - Surface-mount footprint compatible with automated assembly; 0.090 g mass |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band (not applicable for bidirectional P6SMB82CAH); meets UL 94V-0 and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional transient conduction path | No polarity marking required; terminals interchangeable for AC or dual-rail DC protection |
| Case | Thermal and mechanical interface | Exposed copper pad on PCB provides primary heat dissipation path; RθJC = 10 °C/W |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood applications including temperature cycling, humidity bias, and mechanical shock |
| Glass passivated junction | Stable VBR tolerance (±5% typical) and low long-term drift over lifetime |
| Fast response time | <1.0 ps rise time enables protection against ESD and fast electrical fast transients (EFT) |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (EFT) waveforms |
| Low moisture sensitivity | MSL Level 1 per J-STD-020 - no dry-pack or bake requirement before reflow |
Applications
| Automotive Lighting Control | Engine Control Unit (ECU) Power Input |
|---|---|
Use Scenario: Protecting LED driver ICs and microcontrollers from load-dump transients during headlamp switching in 12 V vehicle systems. IC Role / Device Role: Bidirectional clamping element placed across input rails upstream of DC-DC converters. Use Value: Limits voltage to ≤113 V during ISO 7637-2 Pulse 1 events, preventing latch-up or gate oxide damage in downstream FETs and regulators. |
Use Scenario: Safeguarding 5 V/3.3 V logic supplies in engine management systems exposed to alternator ripple and ignition noise. IC Role / Device Role: Primary transient suppressor on main 12 V battery input before LDO or buck regulator. Use Value: Withstands 600 W peak surges while maintaining <1 µA leakage at 70.1 V, preserving quiescent current budget in always-on circuits. |
| Industrial Sensor Interface | Commercial HVAC Control Board |
Use Scenario: Shielding RS-485 transceivers and analog front-ends from ESD and induced surges on field wiring in factory automation. IC Role / Device Role: Common-mode TVS pair across differential bus lines (A/B) and shield ground. Use Value: Symmetrical 77.9–86.1 V breakdown ensures balanced clamping, minimizing signal distortion during 8 kV contact ESD events. |
Use Scenario: Protecting microcontroller I/O and relay drivers from inductive kickback in blower motor control circuits. IC Role / Device Role: Parallel-mounted TVS across relay coil supply and return paths. Use Value: 113 V clamping voltage prevents voltage reversal beyond MOSFET VDSS rating during 100 A surge events, extending switch lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ85CA | Higher VBR (77.8–85.5 V), same DO-214AA package, 600 W rating | Marginally higher clamping (121 V) reduces protected circuit margin vs. P6SMB82CAH's 113 V | Select when system requires tighter VWM/VBR ratio and can tolerate higher VC |
| 1.5KE82CA | Through-hole DO-15 package, same VBR range, 1500 W rating but larger footprint | Not suitable for high-density SMT layouts; higher thermal mass slows response slightly | Choose only for legacy through-hole designs or where higher single-pulse energy is needed |
Compared with SMBJ85CA and 1.5KE82CA, P6SMB82CAH delivers lower clamping voltage (113 V vs. 121 V/129 V) and SMT compatibility in automotive-grade packaging-critical for space-constrained, AEC-Q101-compliant modules requiring repeatable reflow assembly.
Availability
P6SMB82CAH is available at Aetrix Electronics and suitable for automotive lighting systems, engine control units, industrial sensor interfaces, and commercial HVAC control boards requiring stable component supply with full traceability and lifecycle support.
Supply support for P6SMB82CAH 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 with global distribution and AEC-Q101 validation capabilities.
The P6SMB series targets automotive and industrial transient protection, engineered for high-reliability surface-mount deployment in harsh environments where ISO 7637-2 compliance and thermal stability are mandatory.
FAQ
What does the 'CAH' suffix indicate in P6SMB82CAH?
The 'CAH' suffix denotes a bidirectional configuration with AEC-Q101 qualification and halogen-free construction. Unlike unidirectional 'H' variants, P6SMB82CAH conducts symmetrically in both polarities-essential for protecting AC-coupled or dual-rail circuits without polarity concerns. This matches the exact marking code 'MTJ' specified in TSC's datasheet for P6SMB82CAH.
Is P6SMB82CAH compliant with ISO 7637-2 Pulse 1 testing?
Yes, P6SMB82CAH is explicitly rated to meet ISO 7637-2 Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (electrical fast transients). Its 600 W peak pulse power rating and 113 V clamping voltage at 5.5 A ensure it limits voltage overshoot within safe thresholds for 12 V automotive electronics during standardized load-dump events.
What is the maximum junction temperature for P6SMB82CAH?
The maximum junction temperature for P6SMB82CAH is +150 °C, as confirmed in the Absolute Maximum Ratings table. This rating allows operation in under-hood automotive environments and industrial enclosures where ambient temperatures exceed 105 °C, provided thermal design accounts for RθJA = 55 °C/W and RθJC = 10 °C/W.
How does P6SMB82CAH differ from P6SMB82AH?
P6SMB82AH is unidirectional with cathode marking and forward voltage specification; P6SMB82CAH is bidirectional with symmetrical breakdown and no polarity marking. Their VBR ranges differ slightly (P6SMB82AH: 73.8–90.2 V; P6SMB82CAH: 77.9–86.1 V), and P6SMB82CAH has tighter VC (113 V vs. 118 V) due to optimized doping and junction design for bidirectional clamping.
What is the moisture sensitivity level (MSL) of P6SMB82CAH?
P6SMB82CAH has Moisture Sensitivity Level 1 per J-STD-020, meaning it may be stored indefinitely at ≤30 °C/60% RH without baking prior to reflow soldering. This eliminates dry-pack requirements and simplifies manufacturing logistics for high-volume SMT assembly lines producing automotive and industrial control boards.
P6SMB82CAH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 5.5A
- 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)
P6SMB82CAH FAQ
1.How can I place an order for P6SMB82CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB82CAH 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 P6SMB82CAH reliable?
The price and inventory of P6SMB82CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB82CAH is usually 5 days.
3.What payment methods are accepted for P6SMB82CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB82CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB82CAH?
P6SMB82CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB82CAH 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 P6SMB82CAH?
For technical support, including P6SMB82CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB82CAH requirements.
6.How does Aetrix verify that P6SMB82CAH is sourced from the original manufacturer or authorized distributors?
All P6SMB82CAH 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 P6SMB82CAH meets industry standards.
7.What is the process for return or replacement of P6SMB82CAH?
All P6SMB82CAH units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB82CAH, 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 P6SMB82CAH part is unused and in its original packaging.
Return procedure for P6SMB82CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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