Vishay General Semiconductor - Diodes Division P6SMB13CAHM3_A/I
- Part No.:
- P6SMB13CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB13CAHM3_A/I.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC DO214AA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
P6SMB13CAHM3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power lines. It features a 13 V breakdown voltage (VBR min/max = 12.4 V / 13.7 V), 18.2 V maximum clamping voltage at 33.0 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the P6SMB13CAHM3_A/I datasheet, P6SMB13CAHM3_A/I pinout, P6SMB13CAHM3_A/I application, or P6SMB13CAHM3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, SMB (DO-214AA) package compatibility, and thermal resistance (RθJA = 100 °C/W) for board-level surge protection design.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<5 µA at 11.1 V stand-off), while meeting MSL Level 1 per J-STD-020 with 260 °C reflow peak temperature tolerance.
The P6SMB13CAHM3_A/I delivers 33.0 A peak pulse current under 10/1000 µs waveform, with 18.2 V clamping voltage limiting downstream voltage stress. Its 100 °C/W junction-to-ambient thermal resistance requires careful PCB copper pad layout (0.2" × 0.2") to sustain repetitive surge events at 0.01% duty cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 12.4 V min / 13.7 V max at 1.0 mA test current - defines precise voltage threshold where avalanche conduction begins in both directions |
| Stand-off Voltage VWM | 11.1 V - maximum continuous reverse working voltage before significant leakage; sets safe operating margin below VBR |
| Clamping Voltage VC | 18.2 V at 33.0 A IPPM - limits peak voltage seen by protected circuit during 10/1000 µs surge, critical for IC I/O survival |
| Peak Pulse Power PPPM | 600 W - energy-handling capacity for transient suppression; derates above 25 °C per Fig. 2 |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 0.220" × 0.130" footprint, compatible with automated placement and reflow |
| AEC-Q101 Qualified | Yes - qualified for automotive applications per HM3 suffix; supports reliability requirements in engine control, ADAS, and body electronics |
| Thermal Resistance RθJA | 100 °C/W - determines junction temperature rise under power dissipation; requires minimum 5.0 mm × 5.0 mm copper pads per terminal |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical two-terminal construction with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no functional distinction in bidirectional operation |
| Terminal 2 | Anode/Cathode (bidirectional) | Paired terminal completing symmetrical clamping path; enables protection of AC-coupled or floating signal lines |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses, or ungrounded lines without polarity concerns |
| 600 W peak pulse power | Handles high-energy transients from inductive switching or ESD events common in automotive power distribution |
| AEC-Q101 qualification (HM3) | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock testing |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage overshoot during clamping - critical for protecting 3.3 V or 5 V logic interfaces |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, simplifying SMT manufacturing flow |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential signal pair or supply rail to clamp transients before reaching sensitive analog front-end or communication IC. Use Value: Limits voltage to ≤18.2 V during 33 A surges, preventing latch-up or gate oxide damage in 12 V automotive systems. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against field-wiring induced surges from relay coils or motor drives. IC Role / Device Role / Timing Role: Parallel-connected TVS on 24 V DC input lines to absorb repetitive switching transients without degradation. Use Value: Sustains 600 W peak power at 0.01% duty cycle, enabling long-term reliability in factory automation environments. |
| Consumer Power Adapter Output | Telecom Line Interface |
Use Scenario: Clamping output overvoltage in AC/DC adapters due to feedback loop failure or transient coupling from primary side. IC Role / Device Role / Timing Role: Secondary-side TVS across regulated 5 V or 12 V output rails to prevent downstream device damage during fault conditions. Use Value: Fast response time and low incremental surge resistance ensure sub-100 ns clamping, limiting fault duration to safe levels. |
Use Scenario: Protecting Ethernet PHY or DSL line drivers from lightning-induced surges on twisted-pair telecom interfaces. IC Role / Device Role / Timing Role: Bidirectional TVS installed across differential line pairs (e.g., TX+/TX−) to suppress common-mode transients. Use Value: Symmetrical clamping maintains signal integrity while limiting differential voltage excursion to <18.2 V during surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ13CA | Same VBR range (12.4–13.7 V) and SMB package, but lower PPPM (400 W) and higher VC (21.5 V at 24.9 A) | Limited to lower-energy transients; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification or 600 W surge margin |
| 1.5KE13CA | Through-hole DO-201 package, same VBR, higher PPPM (1500 W), but larger footprint and no AEC-Q101 rating | Suitable for prototyping or non-automotive high-energy surge zones; incompatible with SMT assembly | Choose for legacy through-hole designs requiring higher peak power, accepting manual assembly or rework |
Compared with SMAJ13CA and 1.5KE13CA, the P6SMB13CAHM3_A/I uniquely combines AEC-Q101 qualification, 600 W surge capability, and SMB surface-mount compatibility - making it the preferred choice for production automotive and space-constrained industrial PCBs requiring validated reliability.
Availability
P6SMB13CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer power adapter outputs, and telecom line protection requiring stable component supply and AEC-Q101 compliance.
Supply support for P6SMB13CAHM3_A/I 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 and application-specific performance.
The P6SMB series targets high-reliability transient suppression in automotive, industrial, and consumer electronics - engineered for robust clamping, low leakage, and seamless integration into automated SMT processes.
FAQ
What does the "CA" suffix indicate in P6SMB13CAHM3_A/I?
The "CA" suffix denotes a bidirectional configuration - meaning the P6SMB13CAHM3_A/I functions identically in both polarities, with no cathode/anode distinction. This enables protection of AC-coupled signals, differential buses, or floating lines without orientation constraints during placement, unlike unidirectional variants marked "A" only.
Is P6SMB13CAHM3_A/I qualified for automotive use?
Yes, P6SMB13CAHM3_A/I is AEC-Q101 qualified, as confirmed by the "HM3" suffix (halogen-free, RoHS-compliant, and AEC-Q101 qualified) and documentation stating HM3 variants meet automotive reliability standards. It is approved for use in engine control units, body electronics, and ADAS subsystems where transient immunity and long-term stability are mandatory.
What is the maximum clamping voltage of P6SMB13CAHM3_A/I under surge conditions?
The maximum clamping voltage of P6SMB13CAHM3_A/I is 18.2 V, measured at 33.0 A peak pulse current with a 10/1000 µs waveform. This value represents the highest voltage imposed on the protected circuit during a standardized surge event and is critical for ensuring downstream components (e.g., 3.3 V or 5 V ICs) remain within absolute maximum ratings.
How does the SMB (DO-214AA) package of P6SMB13CAHM3_A/I affect PCB layout?
The SMB (DO-214AA) package of P6SMB13CAHM3_A/I requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated thermal performance (RθJA = 100 °C/W). Deviating from this layout reduces surge current handling and increases junction temperature - potentially causing premature failure during repetitive transients. Pad dimensions and copper weight must follow Vishay's recommended mounting footprint.
What is the stand-off voltage (VWM) of P6SMB13CAHM3_A/I, and why does it matter?
The stand-off voltage (VWM) of P6SMB13CAHM3_A/I is 11.1 V - the maximum continuous reverse voltage the device can block without exceeding 5 µA leakage current. This parameter establishes the operational margin below breakdown (VBR ≥ 12.4 V) and ensures reliable isolation during normal system operation, preventing false triggering or power loss in 12 V nominal circuits.
P6SMB13CAHM3_A/I 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 11.1V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 33A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB13CAHM3_A/I FAQ
1.How can I place an order for P6SMB13CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB13CAHM3_A/I 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 P6SMB13CAHM3_A/I reliable?
The price and inventory of P6SMB13CAHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB13CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB13CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB13CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB13CAHM3_A/I?
P6SMB13CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB13CAHM3_A/I 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 P6SMB13CAHM3_A/I?
For technical support, including P6SMB13CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB13CAHM3_A/I requirements.
6.How does Aetrix verify that P6SMB13CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB13CAHM3_A/I 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 P6SMB13CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB13CAHM3_A/I?
All P6SMB13CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB13CAHM3_A/I, 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 P6SMB13CAHM3_A/I part is unused and in its original packaging.
Return procedure for P6SMB13CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB13CAHM3_A/I Tags

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Diodes Incorporated
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