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Taiwan Semiconductor Corporation P6SMB82CA
- Part No.:
- P6SMB82CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB82CA.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,765
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Product details
Overview
P6SMB82CA from Taiwan Semiconductor is a bidirectional 600W surface-mount Transient Voltage Suppressor (TVS) diode in DO-214AA (SMB) package, designed for robust ESD and surge protection in DC power rails and signal lines. It features a breakdown voltage range of 73.8–90.2 V at 1 mA test current, clamps transients to ≤118 V at 5.3 A peak pulse current, and maintains <1 µA reverse leakage at its 66.4 V standoff voltage - ideal for protecting switch-mode power supplies and industrial adapters against ISO 7637-2 Pulse 1/2a/2b/3a/3b threats.
For engineers reviewing the P6SMB82CA datasheet, P6SMB82CA pinout, P6SMB82CA application, or P6SMB82CA equivalent, key selection criteria include bidirectional clamping capability, 600W peak pulse power rating, 118 V maximum clamping voltage at 5.3 A, DO-214AA mechanical compatibility, and compliance with automotive transient immunity standards.
Technical Context
The P6SMB82CA employs a glass-passivated silicon junction optimized for fast transient response (<1.0 ps rise time from 0 V to VBR min) and low thermal resistance (RθJC = 10 °C/W). Its bidirectional configuration enables symmetrical clamping in AC-coupled or floating circuits without polarity constraints.
It operates across –55 °C to +150 °C junction temperature range, supports 100 A non-repetitive forward surge (8.3 ms half-sine), and meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 - confirming suitability for lead-free reflow and high-reliability automated assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 600 W - sustains automotive-level load dump and inductive switching surges without failure |
| Breakdown Voltage (VBR) | 73.8–90.2 V @ 1 mA - ensures reliable triggering above normal operating rail (e.g., 48 V systems) |
| Standoff Voltage (VWM) | 66.4 V - blocks leakage below system max operating voltage while enabling margin for tolerance |
| Maximum Clamping Voltage (VC) | 118 V @ 5.3 A - limits protected circuit stress during worst-case ISO 7637-2 Pulse 1 events |
| Reverse Leakage Current | <1 µA @ 66.4 V - avoids parasitic loading on sensitive analog or low-power control circuits |
| Junction Temperature Range | –55 °C to +150 °C - supports operation in under-hood automotive, industrial enclosures, and high-ambient environments |
| Package | DO-214AA (SMB) - industry-standard surface-mount footprint compatible with automated pick-and-place and reflow |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with matte tin-plated leads, polarity indicated by cathode band (bidirectional function renders band non-polar; used for orientation only).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient conduction path | Either terminal serves as anode or cathode depending on transient polarity - no PCB layout polarity constraint |
| Cathode Band (marking) | Manufacturing orientation indicator | Provides visual alignment reference during placement; electrically irrelevant in CA configuration |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and resistance to humidity-induced parameter drift |
| ISO 7637-2 compliance (Pulse 1/2a/2b/3a/3b) | Validated clamping performance against real-world automotive electrical disturbances |
| Moisture Sensitivity Level 1 | Enables direct use from dry pack without baking - reduces manufacturing overhead |
| UL 94V-0 molding compound | Meets flammability safety requirements for enclosed power electronics and consumer devices |
| RoHS & halogen-free (IEC 61249-2-21) | Supports global environmental compliance and lead-free soldering processes |
Applications
| Industrial SMPS Input Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protecting 48 V input stage of DIN-rail mounted industrial switch-mode power supply against load dump and line transients. IC Role / Device Role / Timing Role: Bidirectional TVS diode placed across input terminals to clamp surges before upstream rectifier and bulk capacitor. Use Value: Limits transient voltage to ≤118 V, preventing MOSFET gate oxide rupture and electrolytic capacitor overvoltage failure. |
Use Scenario: Safeguarding LIN bus interface and microcontroller I/O pins in BCM against battery disconnect spikes and alternator load dump. IC Role / Device Role / Timing Role: Primary surge suppression device on 12 V supply rail and LIN signal line, referenced to chassis ground. Use Value: Responds in <1.0 ps to suppress ISO 7637-2 Pulse 2b (inductive switch-off) within safe clamping margin. |
| Consumer Monitor Power Rail | Telecom Adapter Output Stage |
Use Scenario: Securing 24 V auxiliary rail in LCD monitor power board against ESD and hot-plug transients. IC Role / Device Role / Timing Role: Secondary-side TVS on regulated output, placed adjacent to connector and downstream DC-DC converter. Use Value: Delivers 600 W pulse handling without derating at 70 °C ambient - maintains protection integrity in compact enclosures. |
Use Scenario: Protecting isolated 5 V/12 V outputs of wall-mounted telecom adapter against lightning-induced surges on secondary side. IC Role / Device Role / Timing Role: Final-stage transient suppressor between transformer secondary and output filter capacitor. Use Value: Bidirectional operation accommodates floating output topology; 1 µA leakage avoids standby power penalty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ85CA (Bourns) | Higher VBR (77.8–85.5 V), same DO-214AA package, 600 W rating, but 125 V clamping at 4.8 A | Slightly higher clamping voltage reduces margin for 48 V systems near upper rail limit | Select when tighter VBR tolerance (±5%) is required over P6SMB82CA's ±8.2% |
| 1.5SMC82CA (ON Semiconductor) | Identical VBR (73.8–90.2 V), same 600 W rating and DO-214AA package, but 119 V clamping at 5.0 A and 1.5 kW peak surge rating | Higher surge capability suits infrequent high-energy events; slightly larger thermal mass affects reflow profile | Prefer for designs requiring extended surge endurance beyond standard ISO 7637-2 compliance |
Compared with SMBJ85CA and 1.5SMC82CA, the P6SMB82CA offers optimal balance of clamping voltage (118 V), low leakage (<1 µA), and MSL-1 handling - making it especially suitable for cost-sensitive, high-volume industrial adapters where thermal and moisture robustness are critical.
Availability
P6SMB82CA is available at Aetrix Electronics and suitable for industrial switch-mode power supplies, automotive body control modules, and consumer display adapters requiring stable component supply and full ISO 7637-2 compliance.
Supply support for P6SMB82CA 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-Q200-qualified product lines.
The P6SMB82CA belongs to TSC's P6SMBx(A) family of 600 W surface-mount TVS diodes engineered specifically for automotive-grade transient immunity and industrial power rail protection - emphasizing reliability, low leakage, and automated assembly readiness.
FAQ
What is the clamping voltage of the P6SMB82CA under peak pulse conditions?
The P6SMB82CA has a maximum clamping voltage (VC) of 118 V at 5.3 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and ensures protected circuits remain below critical voltage thresholds during standardized surge events such as ISO 7637-2 Pulse 1. The P6SMB82CA achieves this with minimal thermal derating up to +125 °C ambient.
Is the P6SMB82CA unidirectional or bidirectional, and how does that affect PCB layout?
The P6SMB82CA is a bidirectional TVS diode, indicated by the "CA" suffix, meaning it provides symmetrical clamping in both polarities. Unlike unidirectional variants, it imposes no polarity constraint on PCB layout - the cathode band serves only as a placement orientation marker. This simplifies design in AC-coupled, floating, or dual-rail systems where voltage reversals may occur, and eliminates risk of incorrect orientation during assembly.
Does the P6SMB82CA meet automotive transient immunity standards?
Yes, the P6SMB82CA is explicitly rated to meet ISO 7637-2 for Pulses 1, 2a, 2b, 3a, and 3b - covering common automotive electrical disturbances including load dump, inductive switch-off, and battery connection reversal. Its 600 W peak pulse power rating, fast response time (<1.0 ps), and validated clamping behavior under these waveforms make it suitable for front-end protection in BCMs, infotainment systems, and ADAS power domains.
What is the maximum steady-state power dissipation for the P6SMB82CA at room temperature?
The P6SMB82CA has a steady-state power dissipation (Ptot) of 3 W at TA = 25 °C. This rating applies only to continuous DC or low-frequency reverse-bias conditions - not transient suppression. In normal operation, reverse leakage remains below 1 µA at 66.4 V, resulting in negligible static power loss (<66 nW). The 3 W rating primarily informs thermal design margins during abnormal sustained overvoltage scenarios.
How does the P6SMB82CA compare to the P6SMB82A variant?
The P6SMB82CA is the bidirectional version, while P6SMB82A is unidirectional. Both share identical VBR (73.8–90.2 V), VWM (66.4 V), and clamping (118 V) specs, but differ in polarity handling: P6SMB82CA clamps equally in both directions, whereas P6SMB82A conducts only when cathode is positive. The P6SMB82CA requires no polarity-aware routing, making it preferable for floating rails or AC-coupled interfaces where voltage polarity isn't fixed.
P6SMB82CA 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB82CA FAQ
1.How can I place an order for P6SMB82CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB82CA 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 P6SMB82CA reliable?
The price and inventory of P6SMB82CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB82CA is usually 5 days.
3.What payment methods are accepted for P6SMB82CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB82CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB82CA?
P6SMB82CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB82CA 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 P6SMB82CA?
For technical support, including P6SMB82CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB82CA requirements.
6.How does Aetrix verify that P6SMB82CA is sourced from the original manufacturer or authorized distributors?
All P6SMB82CA 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 P6SMB82CA meets industry standards.
7.What is the process for return or replacement of P6SMB82CA?
All P6SMB82CA units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB82CA, 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 P6SMB82CA part is unused and in its original packaging.
Return procedure for P6SMB82CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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