Vishay General Semiconductor - Diodes Division P6SMB150CA-M3/52
- Part No.:
- P6SMB150CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB150CA-M3/52.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
P6SMB150CA-M3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 150 V standoff voltage (VWM), 207 V clamping voltage (VC) at 2.9 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform. It protects signal lines and power rails in automotive sensor interfaces, industrial I/O modules, and telecom surge-prone ports.
For engineers reviewing the P6SMB150CA-M3/52 datasheet, P6SMB150CA-M3/52 pinout, P6SMB150CA-M3/52 application, or P6SMB150CA-M3/52 equivalent, key selection criteria include bidirectional clamping capability, MSL Level 1 moisture sensitivity, halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification eligibility via HM3 variant.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM = 128 V).
Designed for transient suppression per IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT), it delivers sub-nanosecond response time and low incremental surge resistance - critical for safeguarding high-speed analog inputs and microcontroller GPIOs against inductive switching spikes and lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 128 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 143–158 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 207 V at IPPM = 2.9 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Sustains standardized 10/1000 μs surge without failure; validates robustness for industrial-grade surge immunity. |
| ID (Reverse Leakage) | <1.0 μA at VWM - Minimal DC loading on signal lines; preserves accuracy in high-impedance sensor circuits. |
| TJ max. | +150 °C - Enables operation in under-hood automotive or enclosed industrial enclosures without derating. |
| Package | SMB (DO-214AA) - Surface-mount footprint compatible with automated assembly; 5.59 mm × 4.06 mm body with 2.18 mm minimum cathode band spacing. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional device with no polarity marking - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals serve identical roles in bidirectional clamping; no cathode band marking required - simplifies layout and eliminates orientation errors. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), and ungrounded sensor outputs without external polarity management. |
| 600 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 3 surge immunity requirements for industrial equipment and telecom infrastructure. |
| Halogen-free, RoHS-compliant (M3 suffix) | Complies with IPC-1752A material declaration standards and EU Directive 2011/65/EU Annex II amendments. |
| MSL Level 1 (JEDEC J-STD-020) | Allows unlimited floor life and reflow at 260 °C peak - eliminates baking requirements and streamlines SMT production. |
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime; reduces parameter drift in automotive and outdoor deployments. |
Applications
| Automotive Cabin Sensors | Industrial PLC Analog Inputs |
|---|---|
Use Scenario: Protecting LIN bus-connected temperature/humidity sensors from load dump and alternator ripple in vehicle cabins. IC Role / Device Role / Timing Role: Bidirectional TVS placed across sensor supply and ground to clamp ±200 V transients without affecting DC bias. Use Value: Prevents latch-up or permanent damage to ASIC sensor front-ends while maintaining <1 μA leakage to avoid measurement offset. |
Use Scenario: Shielding 4–20 mA current loop inputs in programmable logic controllers from EFT bursts during factory floor switching events. IC Role / Device Role / Timing Role: Low-capacitance TVS shunting transients between loop+ and loop− before they reach precision op-amp input stages. Use Value: Clamps to 207 V within nanoseconds, limiting induced error to <0.5% full-scale during 1 kV/5 kHz burst testing. |
| Telecom Line Interface Cards | Consumer Smart Meter Communication Ports |
Use Scenario: Safeguarding Ethernet PHY magnetics and PoE injectors against lightning-induced surges on outdoor-facing network ports. IC Role / Device Role / Timing Role: Primary-level TVS mounted at connector entry point, coordinated with secondary GDT or MOV stages. Use Value: Absorbs up to 600 W of coupled energy per IEEE C62.41.2 Category B/C transients without thermal runaway. |
Use Scenario: Securing HPLC (HomePlug AV) powerline communication interfaces in smart electricity meters against grid-switching noise. IC Role / Device Role / Timing Role: Bidirectional suppressor bridging live and neutral lines to suppress common-mode surges above 128 V. Use Value: Maintains signal integrity below 10 pF junction capacitance at 0 V bias - avoids attenuation of 1–30 MHz carrier signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA-T3 | Same VWM (128 V), VC = 207 V, but rated for 600 W with JEDEC-standard 10/1000 μs waveform and MSL Level 1 - identical clamping performance. | Manufactured by Littelfuse; widely stocked in North America; same SMB footprint but different tape-and-reel packaging (T3 vs. /52). | Select when sourcing flexibility or regional logistics favor Littelfuse distribution channels. |
| 1.5SMC150CA | Higher package thermal resistance (RθJA = 125 °C/W vs. 100 °C/W); same electrical specs but lower power derating above 25 °C ambient. | Preferred for cost-sensitive consumer designs where full 600 W rating is not required at elevated temperatures. | Choose only if board-level thermal management limits junction temperature rise to ≤100 °C under worst-case surge duty cycle. |
Compared with P6SMB150CA-M3/52, SMBJ150CA-T3 offers identical electrical protection and assembly compatibility, while 1.5SMC150CA trades thermal performance for broader commercial availability - making P6SMB150CA-M3/52 optimal for thermally constrained automotive and industrial deployments requiring guaranteed 600 W at +85 °C ambient.
Availability
P6SMB150CA-M3/52 is available at Aetrix Electronics and suitable for automotive cabin electronics, industrial PLC I/O modules, and telecom line interface cards requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification readiness.
Supply support for P6SMB150CA-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The P6SMB Series targets high-reliability transient suppression in space-constrained surface-mount applications, with design focus on industrial automation, automotive subsystems, and communications infrastructure where consistent clamping and long-term stability are critical.
FAQ
What does the "CA" suffix indicate in P6SMB150CA-M3/52?
The "CA" suffix denotes a bidirectional configuration - meaning P6SMB150CA-M3/52 provides symmetrical clamping for both positive and negative transients without polarity dependence. This differs from unidirectional variants (e.g., P6SMB150A-M3/52) that require correct anode/cathode orientation and only clamp in one direction.
Is P6SMB150CA-M3/52 qualified to AEC-Q101?
P6SMB150CA-M3/52 itself is not AEC-Q101 qualified; however, the P6SMB150CAHM3 variant (with HM3 suffix) is AEC-Q101 qualified. The M3 suffix indicates halogen-free RoHS compliance, while AEC-Q101 qualification requires the additional HM3 designation and specific test reporting per the standard.
What is the maximum clamping voltage of P6SMB150CA-M3/52 under surge conditions?
The maximum clamping voltage (VC) of P6SMB150CA-M3/52 is 207 V, measured at a peak pulse current (IPPM) of 2.9 A using the standardized 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events.
Can P6SMB150CA-M3/52 be used in place of a unidirectional TVS like P6SMB150A-M3/52?
No - P6SMB150CA-M3/52 is bidirectional and lacks polarity marking, while P6SMB150A-M3/52 is unidirectional with a cathode band. Substituting them requires verifying circuit topology: bidirectional use cases (e.g., AC lines, differential pairs) support P6SMB150CA-M3/52, but DC-biased single-ended paths require the unidirectional version to prevent forward conduction.
What is the junction-to-ambient thermal resistance (RθJA) of P6SMB150CA-M3/52?
The typical junction-to-ambient thermal resistance (RθJA) of P6SMB150CA-M3/52 is 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value governs temperature rise under sustained power dissipation and must be considered in thermal design for repeated surge events.
P6SMB150CA-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):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 2.9A
- 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)
P6SMB150CA-M3/52 FAQ
1.How can I place an order for P6SMB150CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB150CA-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 P6SMB150CA-M3/52 reliable?
The price and inventory of P6SMB150CA-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 P6SMB150CA-M3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB150CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB150CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB150CA-M3/52?
P6SMB150CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB150CA-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 P6SMB150CA-M3/52?
For technical support, including P6SMB150CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB150CA-M3/52 requirements.
6.How does Aetrix verify that P6SMB150CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB150CA-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 P6SMB150CA-M3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB150CA-M3/52?
All P6SMB150CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB150CA-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 P6SMB150CA-M3/52 part is unused and in its original packaging.
Return procedure for P6SMB150CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB150CA-M3/52 Tags

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