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Vishay General Semiconductor - Diodes Division P6SMB8.2CAHE3/52
- Part No.:
- P6SMB8.2CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2CAHE3/52.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,934
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Product details
Overview
P6SMB8.2CAHE3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in 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, max 8.61 V at 10 mA), and clamping voltage of 12.1 V at 49.6 A peak pulse current - used to protect ICs, MOSFETs, and sensor signal lines against ESD and inductive switching transients in automotive and industrial electronics.
For engineers reviewing the P6SMB8.2CAHE3/52 datasheet, P6SMB8.2CAHE3/52 pinout, P6SMB8.2CAHE3/52 application, or P6SMB8.2CAHE3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 12.1 V clamping voltage at rated IPPM, low incremental surge resistance, and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This device operates as a voltage-clamped transient protector with symmetrical bidirectional conduction - no polarity marking required - enabling protection of AC-coupled or differential signal paths without orientation constraints. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<200 μA at 7.02 V stand-off).
Designed for repetitive surge events at 0.01% duty cycle, it delivers 600 W peak pulse power while maintaining thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation up to 150 °C junction temperature under defined PCB copper pad conditions (0.2" × 0.2").
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 7.79–8.61 V at 10 mA test current - defines precise clamping onset threshold for bidirectional overvoltage events |
| Stand-off Voltage VWM | 7.02 V maximum - ensures no conduction during normal circuit operation below this reverse voltage |
| Clamping Voltage VC | 12.1 V at 49.6 A peak pulse current - limits transient voltage seen by protected downstream components |
| Peak Pulse Power PPPM | 600 W with 10/1000 μs waveform - quantifies single-event surge energy absorption capacity |
| Peak Pulse Current IPPM | 49.6 A - determines minimum trace width and PCB layout robustness needed for safe current diversion |
| Junction Temperature Range | −65 °C to +150 °C - supports operation in under-hood automotive and high-temperature industrial environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards; meets UL 94 V-0 flammability rating and MSL Level 1 per J-STD-020 (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward direction; symmetric terminal in bidirectional mode | No polarity marking - both terminals function identically for transient suppression in either direction |
| Cathode | Current exit point in forward direction; symmetric terminal in bidirectional mode | Identical electrical behavior to Anode; device has no functional anode/cathode distinction when used bidirectionally |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC signals, differential buses, or unmarked PCB traces without orientation dependency |
| 600 W peak pulse power | Handles high-energy transients from inductive load switching (e.g., solenoids, relays) without degradation |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| Glass passivated junction | Ensures long-term VBR stability and low leakage drift across temperature and lifetime stress conditions |
| Low-profile SMB package | Supports high-density PCB layouts and automated pick-and-place assembly with industry-standard 7" tape-and-reel (E3/52) |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector interface to shunt transients before reaching signal conditioning circuitry. Use Value: Clamps 12.1 V at 49.6 A, limiting stress on 5 V or 3.3 V rail interfaces while maintaining signal integrity during ISO 7637-2 pulse 1/2a/5a events. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Primary transient suppressor on 24 V DC input channels, mounted adjacent to terminal block entry points. Use Value: Absorbs 600 W pulses without failure, enabling compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity requirements. |
| Consumer Power Adapter Interface | Telecom Line Card Surge Protection |
|
Use Scenario: Shielding USB-C PD controller ICs and level shifters from voltage spikes induced by hot-plug events or cable ESD. IC Role / Device Role / Timing Role: Secondary-level TVS placed between connector and USB-C CC/DP lines to complement primary front-end protection. Use Value: 7.02 V stand-off avoids false triggering during 5–20 V PD negotiation, while 12.1 V clamping protects 3.3 V logic rails. |
Use Scenario: Protecting Ethernet PHYs and line drivers on telecom access equipment subjected to lightning-induced surges on twisted-pair lines. IC Role / Device Role / Timing Role: Differential-mode TVS pair on each data pair (e.g., TX+/TX−), leveraging bidirectional symmetry for full-duplex signal integrity. Use Value: Symmetrical 12.1 V clamping maintains common-mode rejection ratio (CMRR) and prevents latch-up in Gigabit Ethernet PHYs. |
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 nominal VBR, 12.0 V clamping at 50.0 A, same SMB package and 600 W rating | Slightly lower clamping voltage but tighter VBR tolerance (±3.5% vs ±5%); not AEC-Q101 qualified | Select when tighter VBR control is prioritized over automotive qualification |
| 1.5SMC8.2CA | Same VBR and VC, but SMC (DO-214AB) package - 2.6 mm wider, higher thermal mass | Higher power derating margin due to larger case; less suitable for ultra-dense layouts | Choose when board space allows and enhanced thermal performance under sustained surge duty is required |
Compared with SMBJ8.0CA and 1.5SMC8.2CA, P6SMB8.2CAHE3/52 uniquely combines AEC-Q101 qualification, SMB footprint, and verified 600 W surge handling - making it the preferred choice for automotive and space-constrained industrial designs requiring production-grade reliability.
Availability
P6SMB8.2CAHE3/52 is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O protection, and telecom line card surge mitigation requiring stable component supply, RoHS-compliant sourcing, and AEC-Q101 validation.
Supply support for P6SMB8.2CAHE3/52 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, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and communications systems - engineered for robust surge handling, automated assembly compatibility, and long-term parametric stability under thermal and mechanical stress.
FAQ
What does the "CA" suffix indicate in P6SMB8.2CAHE3/52?
The "CA" suffix denotes a bidirectional configuration - meaning P6SMB8.2CAHE3/52 provides symmetrical clamping in both polarities, with no cathode band marking required. This enables use on AC-coupled lines, differential pairs, or unmarked PCB traces where polarity cannot be guaranteed during assembly or field service.
Is P6SMB8.2CAHE3/52 suitable for automotive applications?
Yes, P6SMB8.2CAHE3/52 is AEC-Q101 qualified (indicated by the "HE3" suffix) and tested for temperature cycling, humidity bias, and mechanical shock per automotive reliability standards. It is widely deployed in engine control units, body control modules, and ADAS sensor interfaces requiring certified transient protection.
What is the maximum clamping voltage of P6SMB8.2CAHE3/52 under surge conditions?
The maximum clamping voltage of P6SMB8.2CAHE3/52 is 12.1 V, measured at its rated peak pulse current of 49.6 A using the standardized 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events.
How does the SMB (DO-214AA) package of P6SMB8.2CAHE3/52 compare to SMC in thermal performance?
P6SMB8.2CAHE3/52 in SMB package has a typical junction-to-ambient thermal resistance of 100 °C/W, versus ~60 °C/W for the larger SMC (DO-214AB) variant. While SMB enables compact layouts, designers must ensure adequate copper pour and pad sizing (0.2" × 0.2" per terminal) to maintain safe junction temperatures under repetitive surge conditions.
Can P6SMB8.2CAHE3/52 replace unidirectional TVS diodes like P6SMB8.2AHE3/52 in existing designs?
No - P6SMB8.2CAHE3/52 is bidirectional and lacks polarity marking, whereas P6SMB8.2AHE3/52 is unidirectional with a cathode band. Substitution requires verifying that the circuit does not rely on DC blocking or forward conduction behavior; reverse-biased leakage and clamping symmetry must be validated for the specific application.
P6SMB8.2CAHE3/52 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:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB8.2CAHE3/52 FAQ
1.How can I place an order for P6SMB8.2CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2CAHE3/52 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 P6SMB8.2CAHE3/52 reliable?
The price and inventory of P6SMB8.2CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB8.2CAHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB8.2CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2CAHE3/52?
P6SMB8.2CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2CAHE3/52 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 P6SMB8.2CAHE3/52?
For technical support, including P6SMB8.2CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2CAHE3/52 requirements.
6.How does Aetrix verify that P6SMB8.2CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2CAHE3/52 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 P6SMB8.2CAHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB8.2CAHE3/52?
All P6SMB8.2CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2CAHE3/52, 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 P6SMB8.2CAHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB8.2CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2CAHE3/52 Tags
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