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Vishay General Semiconductor - Diodes Division P6SMB11CAHM3/I
- Part No.:
- P6SMB11CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB11CAHM3/I.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,670
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Product details
Overview
P6SMB11CAHM3/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 11 V standoff voltage (VWM), 15.6 V clamping voltage (VC) at 38.5 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 units, industrial I/O interfaces, and telecom line cards against ESD and inductive switching transients.
For engineers reviewing the P6SMB11CAHM3/I datasheet, P6SMB11CAHM3/I pinout, P6SMB11CAHM3/I application, or P6SMB11CAHM3/I equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification, halogen-free RoHS compliance, low thermal resistance (RθJL = 20 °C/W), and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
The P6SMB11CAHM3/I operates as a voltage-clamped surge protector using an avalanche breakdown mechanism. Its bidirectional symmetry enables suppression of both positive and negative transients without polarity sensitivity, eliminating need for orientation during placement.
It delivers 600 W peak pulse power handling under 10/1000 μs waveform with 0.01% duty cycle, and maintains stable clamping performance across -65 °C to +150 °C junction temperature range. Thermal resistance from junction to lead is 20 °C/W, supporting reliable operation under repetitive surge conditions when mounted per recommended 0.2" × 0.2" copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 9.40 V - Maximum continuous reverse voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown) | 10.5–11.6 V at 1 mA - Verified avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping) | 15.6 V at IPPM = 38.5 A - Peak voltage seen by protected circuit during worst-case 600 W transient; critical for IC-level stress limits. |
| PPPM | 600 W - Surge energy absorption capacity with 10/1000 μs waveform; meets IEC 61000-4-5 Level 4 requirements when properly laid out. |
| ID (Leakage) | 5.0 μA max at VWM - Ultra-low reverse leakage preserves signal integrity and battery life in always-on circuits. |
| TJ max | +150 °C - Enables use in under-hood automotive environments and high-temperature industrial enclosures without derating. |
| Package | SMB (DO-214AA) - Low-profile SMT footprint (4.57 mm × 3.94 mm) compatible with standard pick-and-place equipment and IPC-7351B land patterns. |
Pinout & Package
SMB (DO-214AA) surface-mount package with matte tin-plated leads; no polarity marking required for bidirectional operation; meets J-STD-002 solderability and JESD22-B102 whisker resistance Class 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No functional distinction - either end connects to protected line; enables single-part design for AC or differential signal protection. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness - suitable for ADAS sensor modules and body control units. |
| Halogen-free & RoHS-compliant | Meets JEDEC JS709E and IPC-1752A material declarations - supports green manufacturing and export compliance without performance trade-offs. |
| 600 W peak pulse power | Handles IEC 61000-4-5 combination wave surges up to 4 kV (line-earth) without degradation when PCB layout follows Vishay's 0.2" × 0.2" copper pad recommendation. |
| Low clamping ratio (VC/VWM = 1.66) | Minimizes let-through voltage during transients - critical for safeguarding 3.3 V and 5 V logic interfaces downstream of protection stage. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without pre-baking; reduces production line complexity and cost. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN FD and LIN bus transceivers in engine control modules from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector interface to shunt surge energy before reaching PHY layer. Use Value: Maintains signal integrity under 12 V system surges up to ±35 V/500 ms while limiting clamped voltage to ≤15.6 V - preserving transceiver input tolerance margins. |
Use Scenario: Safeguarding analog input channels (4–20 mA, 0–10 V) on programmable logic controller backplanes exposed to field wiring transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on each channel's front-end, coordinated with series impedance and filtering. Use Value: Withstands repeated 1 kV/500 A surges per IEC 61000-4-5; low leakage (<5 μA) prevents measurement drift in precision current loops. |
| Telecom Line Card Protection | Consumer Power Adapter ESD Guard |
|
Use Scenario: Secondary protection on Ethernet PHY side of PoE-powered switches against induced lightning surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Fast-response clamping device placed after primary gas discharge tube (GDT) to handle residual fast-rising edges. Use Value: 10/1000 μs response ensures sub-100 ns turn-on; 15.6 V clamping prevents damage to 2.5 V/3.3 V PHY supply rails and data lanes. |
Use Scenario: Input-stage transient suppression on USB-C and barrel-jack inputs of smart home hubs and audio amplifiers. IC Role / Device Role / Timing Role: First-line defense against human-body-model (HBM) ESD and accidental AC mains coupling during plug insertion. Use Value: AEC-Q101 qualification ensures long-term stability in consumer devices subject to thermal cycling; SMB footprint allows dense layout near connectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11CA | Same VWM (9.4 V) and VC (15.6 V), but lower PPPM (400 W); SMA package (larger footprint, higher RθJA). | Limited to lower-energy transients (IEC 61000-4-2 Level 3); less suitable for industrial 4–20 mA loop protection requiring 600 W margin. | Select when cost sensitivity outweighs surge margin needs and board space permits larger SMA footprint. |
| 1.5SMC11CA | Same electrical specs, but SMC package (DO-214AB); 1.5 kW rating implies higher single-pulse capability but same 600 W repetitive rating. | Higher thermal mass supports longer surge durations; not AEC-Q101 qualified - excludes automotive use. | Prefer for non-automotive industrial power supplies where mechanical robustness and thermal inertia are prioritized over qualification status. |
Compared with SMAJ11CA and 1.5SMC11CA, the P6SMB11CAHM3/I uniquely combines AEC-Q101 qualification, halogen-free construction, and SMB footprint - making it the only choice for space-constrained, automotive-grade bidirectional TVS applications requiring full 600 W surge handling and zero-layout rework.
Availability
P6SMB11CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O terminals, and telecom line card designs requiring stable component supply, long-lifecycle support, and traceable halogen-free sourcing.
Supply support for P6SMB11CAHM3/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 high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The P6SMB Series targets high-energy transient suppression in space-constrained SMT applications, with design emphasis on AEC-Q101 compliance, low clamping ratios, and seamless integration into automated manufacturing lines.
FAQ
What is the clamping voltage of the P6SMB11CAHM3/I under maximum rated surge current?
The P6SMB11CAHM3/I exhibits a maximum clamping voltage (VC) of 15.6 V when subjected to its rated peak pulse current (IPPM) of 38.5 A with a 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 low VC/VWM ratio of 1.66 ensures effective protection for 3.3 V and 5 V logic systems.
Is the P6SMB11CAHM3/I suitable for automotive applications?
Yes, the P6SMB11CAHM3/I is AEC-Q101 qualified (indicated by the "HM3" suffix and "_B" revision code per ordering table), making it suitable for automotive applications including engine control units, ADAS sensors, and body electronics. It has passed stress tests for temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 Rev D, and its halogen-free, RoHS-compliant construction meets automotive material requirements.
Does the P6SMB11CAHM3/I require polarity-aware PCB layout?
No, the P6SMB11CAHM3/I is a bidirectional TVS diode (denoted by "CA" suffix), meaning its anode and cathode terminals are functionally symmetrical. There is no band marking on the SMB package, and either terminal may connect to the line being protected. This eliminates orientation errors during automated placement and simplifies layout for AC-coupled or differential signal paths.
What is the maximum operating temperature for the P6SMB11CAHM3/I?
The P6SMB11CAHM3/I has a specified junction temperature range of -65 °C to +150 °C. Its thermal resistance from junction to lead (RθJL) is 20 °C/W, enabling reliable operation at full rated power in high-temperature environments such as under-hood automotive locations or enclosed industrial controllers - provided the PCB uses Vishay-recommended 0.2" × 0.2" copper pads per terminal.
How does the P6SMB11CAHM3/I compare to unidirectional variants like P6SMB11AHM3/I?
The P6SMB11CAHM3/I differs from unidirectional P6SMB11AHM3/I solely in polarity configuration: the "CA" version provides symmetrical clamping for both polarities, while the "A" version conducts only in reverse bias and requires correct cathode orientation. Both share identical VWM (9.4 V), VC (15.6 V), PPPM (600 W), and AEC-Q101/HM3 qualification. Choose P6SMB11CAHM3/I for AC lines, differential buses, or any application where voltage polarity reversal is possible.
P6SMB11CAHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 38.5A
- 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)
P6SMB11CAHM3/I FAQ
1.How can I place an order for P6SMB11CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB11CAHM3/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 P6SMB11CAHM3/I reliable?
The price and inventory of P6SMB11CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB11CAHM3/I is usually 5 days.
3.What payment methods are accepted for P6SMB11CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB11CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB11CAHM3/I?
P6SMB11CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB11CAHM3/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 P6SMB11CAHM3/I?
For technical support, including P6SMB11CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB11CAHM3/I requirements.
6.How does Aetrix verify that P6SMB11CAHM3/I is sourced from the original manufacturer or authorized distributors?
All P6SMB11CAHM3/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 P6SMB11CAHM3/I meets industry standards.
7.What is the process for return or replacement of P6SMB11CAHM3/I?
All P6SMB11CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB11CAHM3/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 P6SMB11CAHM3/I part is unused and in its original packaging.
Return procedure for P6SMB11CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB11CAHM3/I Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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