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Vishay General Semiconductor - Diodes Division P6SMB12CA-M3/52
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- Part No.:
- P6SMB12CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB12CA-M3/52.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,334
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Product details
Overview
P6SMB12CA-M3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, with 12 V standoff voltage (VWM), 16.7 V clamping voltage (VC) at 35.9 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) capability under 10/1000 μs waveform - deployed for ESD and surge protection on signal lines of automotive sensor units and industrial I/O interfaces.
For engineers reviewing the P6SMB12CA-M3/52 datasheet, P6SMB12CA-M3/52 pinout, P6SMB12CA-M3/52 application, or P6SMB12CA-M3/52 equivalent, this page delivers verified electrical specs, bidirectional clamping behavior, thermal resistance (RθJA = 100 °C/W), halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification path - critical for automotive-grade transient suppression design validation.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping performance (VC = 16.7 V at IPPM = 35.9 A) regardless of transient polarity. Its glass-passivated junction ensures stable breakdown (VBR min/max = 11.4 V / 12.6 V at IT = 1.0 mA) and low incremental surge resistance.
Designed for automated SMT assembly, it meets J-STD-020 MSL Level 1 (peak reflow ≤ 260 °C) and JESD201 Class 2 whisker resistance. The device sustains repetitive 10/1000 μs surges at 0.01% duty cycle while maintaining TJ ≤ 150 °C under derated conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 12 V - maximum continuous reverse voltage before conduction begins; defines safe operating margin for protected circuit. |
| VBR (Breakdown) | 11.4 V to 12.6 V at 1.0 mA - precise voltage threshold where avalanche conduction initiates reliably. |
| VC (Clamping) | 16.7 V at IPPM = 35.9 A - peak voltage seen by downstream IC during worst-case 10/1000 μs surge. |
| PPPM | 600 W - peak transient energy absorption capacity without failure under standardized waveform. |
| ID (Leakage) | ≤ 5.0 μA at 12 V - negligible standby current that avoids loading sensitive analog/sensor nodes. |
| RθJA | 100 °C/W - thermal resistance from junction to ambient; determines temperature rise under 5.0 W steady-state dissipation. |
| Package | SMB (DO-214AA) - industry-standard 2-pin SMT outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - terminals are symmetrical anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Provides low-impedance path to ground or rail during positive or negative transients; electrically identical to cathode. |
| Cathode | Transient return path (bidirectional) | Functionally interchangeable with anode; no marking distinguishes terminals in CA-suffix devices. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR (11.4–12.6 V) and VC (16.7 V) for ± polarity transients - eliminates need for dual unidirectional devices. |
| 600 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly laid out - supports industrial and automotive EMC robustness. |
| Halogen-free & RoHS-compliant (M3) | Meets IPC-1752A material declaration requirements and JEDEC J-STD-020 reflow profile - suitable for green manufacturing. |
| Low clamping ratio (VC/VWM = 1.39) | Minimizes overvoltage stress on protected ICs - critical for 3.3 V/5 V logic and automotive CAN/LIN transceivers. |
| AEC-Q101 qualification path | Base part P6SMB12CAHM3_X available with HM3 suffix - enables drop-in qualification for automotive sensor modules. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and pressure/temperature sensor outputs from load dump and inductive switching noise in engine control units. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry point to clamp ±25 V transients before reaching ASIC input pins. Use Value: Limits voltage excursion to ≤16.7 V during 35.9 A surge, preserving signal integrity and preventing latch-up in 5 V tolerant sensor interface ICs. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced surges and electrostatic discharge. IC Role / Device Role / Timing Role: Front-end transient suppressor mounted adjacent to terminal block to shunt energy before optocoupler or Schmitt trigger input stage. Use Value: Delivers 600 W pulse handling with <5 μA leakage at 24 V - avoids false triggering while enabling compact PCB layout. |
| Telecom Line Interface | Consumer Appliance Control Board |
Use Scenario: Shielding RS-485 transceiver data lines in base station remote units from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Differential-mode TVS pair (one per line) referenced to common ground, leveraging symmetric clamping for balanced signal integrity. Use Value: Matches differential voltage tolerance of RS-485 receivers (±7 V common-mode) with 16.7 V clamping - prevents receiver damage without distorting data eye. |
Use Scenario: Guarding microcontroller GPIOs and display driver lines in smart home appliances against user-handling ESD (IEC 61000-4-2 ±8 kV contact). IC Role / Device Role / Timing Role: Localized TVS at board edge connectors and button traces to intercept fast-rising ESD events before reaching MCU pins. Use Value: Sub-1 ns response time and 16.7 V clamping ensure MCU I/O remains within absolute maximum ratings even during direct 8 kV discharges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12CA | Same VWM (12 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy transients; less thermal margin in high-ambient industrial enclosures | Select when board space is constrained and surge threat level is ≤ IEC 61000-4-5 Level 3. |
| 1.5KE12CA | Same VWM (12 V), higher PPPM (1500 W), axial lead DO-201 package (through-hole) | Requires through-hole assembly; unsuitable for fully SMT production or high-density layouts | Choose only for legacy repair, prototyping, or applications demanding >600 W single-pulse handling with manual assembly. |
Compared with SMAJ12CA and 1.5KE12CA, P6SMB12CA-M3/52 offers optimal balance of 600 W surge rating, SMB SMT compatibility, and thermal performance (RθJA = 100 °C/W) - making it the preferred choice for volume automotive and industrial designs requiring AEC-Q101 readiness and halogen-free compliance.
Availability
P6SMB12CA-M3/52 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interfaces, and consumer appliance control boards requiring stable component supply with halogen-free and RoHS-compliant sourcing.
Supply support for P6SMB12CA-M3/52 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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for robust 10/1000 μs surge handling, low clamping ratios, and seamless SMT integration.
FAQ
What is the clamping voltage of P6SMB12CA-M3/52 at its rated peak pulse current?
The P6SMB12CA-M3/52 has a maximum clamping voltage (VC) of 16.7 V at its rated peak pulse current (IPPM) of 35.9 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88370 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The P6SMB12CA-M3/52 maintains this clamping performance bidirectionally due to its symmetrical construction.
Is P6SMB12CA-M3/52 suitable for automotive applications?
Yes - while the base P6SMB12CA-M3/52 is commercial-grade, it shares the same die and SMB package as the AEC-Q101 qualified variant P6SMB12CAHM3_B/H. The M3 suffix confirms halogen-free and RoHS compliance, and the device meets MSL Level 1 reflow requirements. For production automotive use, specify the HM3 suffix version; P6SMB12CA-M3/52 serves as a direct form-fit-function prototype and qualification precursor.
How does the bidirectional design of P6SMB12CA-M3/52 affect its circuit placement?
The P6SMB12CA-M3/52 has no polarity marking and identical electrical behavior in both directions, so it can be placed without orientation constraints between any two nodes requiring transient suppression - such as across differential lines (RS-485), power rails (VCC-to-GND), or unidirectional signal lines with AC-coupled references. This simplifies layout, reduces BOM count, and eliminates risk of reverse installation during SMT assembly.
What is the maximum steady-state power dissipation for P6SMB12CA-M3/52?
The P6SMB12CA-M3/52 has a maximum steady-state power dissipation (PD) of 5.0 W when mounted on infinite heatsink at TA = 50 °C. In typical PCB applications with 0.2" × 0.2" copper pads per terminal, derating applies above 25 °C ambient per Figure 2 in the datasheet. This rating governs continuous leakage-related heating but is distinct from its 600 W transient pulse capability.
Does P6SMB12CA-M3/52 require external current limiting resistors?
No - the P6SMB12CA-M3/52 is a passive clamping device and does not require series current-limiting resistors for transient suppression. Its low dynamic impedance during avalanche conduction allows it to shunt surge current directly to ground or rail. However, designers must ensure PCB trace width, pad size (minimum 0.2" × 0.2" copper), and grounding strategy support the full 35.9 A IPPM without excessive inductance or voltage drop.
P6SMB12CA-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 35.9A
- 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 (SMBJ)
P6SMB12CA-M3/52 FAQ
1.How can I place an order for P6SMB12CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB12CA-M3/52 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 P6SMB12CA-M3/52 reliable?
The price and inventory of P6SMB12CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB12CA-M3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB12CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB12CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB12CA-M3/52?
P6SMB12CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB12CA-M3/52 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 P6SMB12CA-M3/52?
For technical support, including P6SMB12CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB12CA-M3/52 requirements.
6.How does Aetrix verify that P6SMB12CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB12CA-M3/52 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 P6SMB12CA-M3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB12CA-M3/52?
All P6SMB12CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB12CA-M3/52, 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 P6SMB12CA-M3/52 part is unused and in its original packaging.
Return procedure for P6SMB12CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB12CA-M3/52 Tags
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