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Vishay General Semiconductor - Diodes Division P6SMB8.2CA-E3/5B
- Part No.:
- P6SMB8.2CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2CA-E3/5B.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,456
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Product details
Overview
P6SMB8.2CA-E3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, rated for 600 W peak pulse power with 10/1000 μs waveform, 8.2 V breakdown voltage (VBR min 7.79 V), 7.02 V stand-off voltage (VWM), and clamping voltage of 12.1 V at 49.6 A peak pulse current - deployed to protect signal lines and IC inputs in automotive sensor interfaces and industrial control systems.
For engineers reviewing the P6SMB8.2CA-E3/5B datasheet, P6SMB8.2CA-E3/5B pinout, P6SMB8.2CA-E3/5B application, or P6SMB8.2CA-E3/5B equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, RoHS-compliant commercial-grade construction, AEC-Q101 qualification eligibility (via HE3/HM3 variants), and real-world design implications for transient suppression in 12 V rail and CAN bus protection circuits.
Technical Context
The P6SMB8.2CA-E3/5B operates as a symmetrical bidirectional TVS, exhibiting identical clamping characteristics in both polarities - enabling robust protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable leakage (<200 μA at VWM) and fast response (<1 ns) to ESD and lightning-induced transients.
Designed for surface-mount assembly on standard PCB copper pads (0.2" × 0.2"), it delivers 600 W surge capability under repetitive 0.01% duty cycle conditions while maintaining thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). It meets MSL Level 1 per J-STD-020 with 260 °C reflow peak temperature tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 7.79 V - guarantees reliable conduction onset above normal 7.02 V operating rail, preventing false triggering during ripple or noise. |
| VWM | 7.02 V - maximum continuous reverse voltage before significant leakage; sets upper limit for protected circuit's nominal DC bias. |
| VC @ IPPM | 12.1 V - clamped voltage during 49.6 A transient; defines worst-case overvoltage seen by downstream ICs during surge events. |
| PPPM | 600 W - peak pulse power handling with 10/1000 μs waveform; supports IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge testing. |
| IPPM | 49.6 A - maximum non-repetitive surge current; determines minimum trace width and pad area required for safe energy dissipation. |
| TJ max | 150 °C - maximum junction temperature; enables operation in under-hood automotive environments and sealed industrial enclosures. |
| Package | SMB (DO-214AA) - standardized 2-pin SMD outline with 3.94 mm × 2.20 mm footprint; compatible with automated pick-and-place and reflow processes. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional device with no polarity marking - both terminals are electrically symmetric and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Either terminal serves as current entry/exit point during positive or negative surges; no cathode band marking required. |
| Case (body) | Thermal and mechanical interface | Plastic-molded body provides UL 94 V-0 flammability rating and transfers heat to PCB copper pads via solder joints. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485, CAN), and ungrounded sensor outputs without polarity concerns. |
| 600 W peak pulse power | Supports compliance with IEC 61000-4-5 surge immunity requirements up to 1 kV open-circuit voltage in industrial and automotive applications. |
| Glass-passivated junction | Ensures low leakage (<200 μA at VWM) and long-term stability under thermal cycling and humidity exposure. |
| MSL Level 1 rating | Allows unlimited floor life and compatibility with standard lead-free reflow profiles up to 260 °C peak temperature. |
| RoHS-compliant, matte tin-plated leads | Meets J-STD-002 solderability and JESD22-B102 wetting requirements; eliminates post-solder cleaning in high-volume manufacturing. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of engine coolant temperature sensors exposed to load-dump transients in 12 V vehicle electrical systems. IC Role / Device Role / Timing Role: Bidirectional TVS clamp limiting voltage excursions to ≤12.1 V during 49.6 A surges, preserving ADC input integrity. Use Value: Prevents latch-up or permanent damage to microcontroller analog front-end while maintaining signal fidelity below 7.02 V nominal operation. |
Use Scenario: Shielding 24 V digital input channels on programmable logic controllers from inductive kickback generated by solenoid switching. IC Role / Device Role / Timing Role: Fast-response (<1 ns) voltage clamp absorbing 600 W surge energy without affecting 1 ms scan cycle timing. Use Value: Eliminates need for external RC snubbers or relay contact protection, reducing BOM count and board space in DIN-rail mounted controllers. |
| Telecom Line Interface | Consumer USB Port ESD Protection |
|
Use Scenario: Safeguarding RS-485 transceiver pins in outdoor security camera links subjected to lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Symmetrical clamping across A/B differential pair, maintaining signal integrity during ±12.1 V transient events. Use Value: Enables >15 kV HBM ESD immunity and 1 kV IEC 61000-4-5 surge rating without degrading data rate up to 10 Mbps. |
Use Scenario: Adding secondary-level surge protection on VBUS and D+/D− lines of USB 2.0 ports in smart home hubs. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF typical) bidirectional clamp suppressing ESD pulses while minimizing signal rise-time degradation. Use Value: Complies with IEC 61000-4-2 Level 4 (±15 kV air, ±8 kV contact) without requiring series impedance that would violate USB eye diagram specs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA | 8.0 V VWM, 8.89 V VBR min, same 600 W rating and SMB package | Slightly lower clamping threshold (12.0 V vs. 12.1 V); tighter VBR tolerance (5%) vs. P6SMB8.2CA's 10% | Select SMBJ8.0CA when tighter voltage matching to 8 V rails is required; verify layout compatibility with identical SMB footprint. |
| 1.5SMC8.2CA | Same VWM/VBR specs but in larger SMC (DO-214AB) package; 1000 W PPPM | Higher surge capacity suits infrequent high-energy events; requires 30% larger PCB area and different thermal pad design | Choose 1.5SMC8.2CA only if system-level testing reveals insufficient margin with 600 W rating; otherwise, P6SMB8.2CA-E3/5B offers optimal size/power balance. |
Compared with SMBJ8.0CA, P6SMB8.2CA-E3/5B offers higher VWM margin for 8.2 V nominal rails and broader VBR tolerance for cost-sensitive designs; versus 1.5SMC8.2CA, it delivers proven 600 W performance in a space-constrained SMB footprint ideal for dense automotive ECUs and portable electronics.
Availability
P6SMB8.2CA-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line drivers, and consumer USB port protection requiring stable component supply and RoHS-compliant commercial-grade TVS diodes.
Supply support for P6SMB8.2CA-E3/5B 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets cost-effective, high-volume transient suppression in automotive, industrial, and communications equipment - engineered for automated assembly, thermal robustness, and consistent clamping performance across temperature and lifetime.
FAQ
What is the clamping voltage of the P6SMB8.2CA-E3/5B under maximum surge conditions?
The P6SMB8.2CA-E3/5B exhibits a maximum clamping voltage (VC) of 12.1 V when subjected to its rated peak pulse current (IPPM) of 49.6 A using a 10/1000 μs waveform. This value is measured per Figure 1 in the official Vishay datasheet (Document Number: 88370, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during transient events. Engineers must ensure downstream components tolerate this 12.1 V ceiling during surge testing.
Is the P6SMB8.2CA-E3/5B suitable for automotive applications requiring AEC-Q101 qualification?
The P6SMB8.2CA-E3/5B itself is RoHS-compliant and commercial-grade; however, Vishay offers AEC-Q101 qualified versions under ordering codes such as P6SMB8.2CAHE3_B (with "_B" suffix denoting AEC-Q101 qualification for voltages up to 220 V). The P6SMB8.2CA-E3/5B can be used in non-safety-critical automotive subsystems, but for AEC-Q101 compliance, the HE3 or HM3 variant must be specified - confirmed in the Ordering Information table on page 3 of the P6SMB datasheet.
How does the bidirectional nature of the P6SMB8.2CA-E3/5B affect its placement on the PCB?
The P6SMB8.2CA-E3/5B has no polarity marking and functions identically in both directions, so orientation on the PCB is irrelevant - either terminal may connect to the line or ground side of the protected node. This simplifies layout, eliminates assembly errors, and enables use in AC-coupled or floating signal paths like RS-485 differential pairs. The SMB (DO-214AA) package requires symmetric 0.2" × 0.2" copper pads per terminal for optimal thermal and surge performance, as specified in the Mechanical Data section.
What is the maximum steady-state power dissipation for the P6SMB8.2CA-E3/5B?
The P6SMB8.2CA-E3/5B has a maximum steady-state power dissipation (PD) of 5.0 W when mounted on an infinite heatsink at ambient temperature (TA) of 50 °C. At 25 °C ambient, derating applies per Figure 2 in the datasheet; actual usable DC power depends on PCB copper area and airflow. For continuous operation, designers must ensure junction temperature remains ≤150 °C using thermal modeling or empirical measurement - the device is intended for transient, not sustained, power dissipation.
Does the P6SMB8.2CA-E3/5B meet industry standards for surge immunity testing?
Yes - the P6SMB8.2CA-E3/5B's 600 W peak pulse power rating with 10/1000 μs waveform aligns with IEC 61000-4-5 surge immunity test requirements for Level 3 (1 kV open-circuit, 2 Ω source impedance). Its fast response time (<1 ns), low clamping voltage (12.1 V), and stable leakage (<200 μA at 7.02 V) make it suitable for protecting circuits against lightning-induced surges and inductive switching transients in industrial and automotive environments, as validated in Vishay's application notes and test reports.
P6SMB8.2CA-E3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 49.6A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB8.2CA-E3/5B FAQ
1.How can I place an order for P6SMB8.2CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2CA-E3/5B 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 P6SMB8.2CA-E3/5B reliable?
The price and inventory of P6SMB8.2CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB8.2CA-E3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB8.2CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2CA-E3/5B?
P6SMB8.2CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2CA-E3/5B 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 P6SMB8.2CA-E3/5B?
For technical support, including P6SMB8.2CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2CA-E3/5B requirements.
6.How does Aetrix verify that P6SMB8.2CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2CA-E3/5B 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 P6SMB8.2CA-E3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB8.2CA-E3/5B?
All P6SMB8.2CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2CA-E3/5B, 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 P6SMB8.2CA-E3/5B part is unused and in its original packaging.
Return procedure for P6SMB8.2CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2CA-E3/5B Tags
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Diodes Incorporated
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