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Vishay General Semiconductor - Diodes Division P6SMB11CAHM3_A/I
- Part No.:
- P6SMB11CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB11CAHM3_A/I.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,807
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Product details
Overview
P6SMB11CAHM3_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 11 V standoff voltage (VWM), 12.1 V minimum breakdown voltage (VBR), and 15.6 V maximum clamping voltage (VC) at 38.5 A peak pulse current (IPPM), with 600 W peak pulse power capability under 10/1000 μs waveform - used to protect MOSFETs, sensor interfaces, and IC power rails in automotive and industrial control systems.
For engineers reviewing the P6SMB11CAHM3_A/I datasheet, P6SMB11CAHM3_A/I pinout, P6SMB11CAHM3_A/I application, or P6SMB11CAHM3_A/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification status, SMB (DO-214AA) package thermal performance, and compliance with IEC 61000-4-2/4-4/4-5 surge immunity requirements.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: during transient overvoltage events, it avalanches symmetrically in both directions to limit voltage across protected circuit nodes. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<5 μA at VWM), while MSL Level 1 rating supports lead-free reflow up to 260 °C.
The device delivers 600 W peak pulse power handling with <1 ns response time and low incremental surge resistance (≈0.4 Ω derived from VC/IPPM), enabling robust protection against inductive switching spikes and ESD events without affecting normal signal integrity in bidirectional data or supply lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 9.40 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 10.5–11.6 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 15.6 V at 38.5 A IPPM - Peak voltage seen by protected circuit during worst-case 10/1000 μs surge. |
| PPPM (Peak Pulse Power) | 600 W - Sustains standardized lightning/surge pulses without failure; validated per IEC 61000-4-5. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint; optimized for automated placement and thermal dissipation via copper pads. |
| AEC-Q101 Qualified | Yes - Certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC-Q101 Rev D. |
| RoHS & Halogen-Free | Compliant - HM3 suffix denotes halogen-free, RoHS-compliant construction per JEDEC J-STD-609. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No functional distinction; either terminal connects to line under protection, other to ground or reference plane - enables single-component protection of AC or differential signals. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against severe lightning-induced surges per IEC 61000-4-5 Level 4 (4 kV) without derating in standard PCB layouts. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain and body electronics where long-term reliability under thermal cycling and humidity is mandatory. |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage stress on downstream components - critical for protecting 12 V rail logic and CAN transceivers. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without pre-baking or special handling. |
| Glass-passivated junction | Ensures stable leakage current (<5 μA at 9.4 V) and repeatable breakdown behavior over 150 °C junction temperature. |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) connected to microcontroller ADC inputs in engine control units. IC Role / Device Role / Timing Role: Bidirectional shunt clamp absorbing load-dump spikes and ISO 7637-2 pulse 5a/b transients on 5 V or 12 V sensor supply lines. Use Value: Prevents ADC saturation and latch-up by limiting voltage to ≤15.6 V during 100 ms load dump events, preserving signal fidelity and system uptime. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Fast-response voltage clamp placed between field input and optocoupler input stage to suppress >1 kV transients. Use Value: Eliminates false triggering and optocoupler damage by clamping within 1 ns, maintaining deterministic input state recognition under harsh factory EMI. |
| Telecom Line Interface Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding RS-485 transceiver bus lines in networked building automation systems from induced lightning surges. IC Role / Device Role / Timing Role: Symmetrical bidirectional TVS placed across differential pair (A/B) and to ground, meeting IEC 61000-4-4 EFT immunity. Use Value: Maintains data integrity at 10 Mbps by limiting common-mode surge voltage to <16 V, preventing receiver saturation and bit errors. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Clamp placed across motor terminals to absorb inductive kickback during PWM switching. Use Value: Extends MOSFET lifespan by reducing drain-source voltage overshoot to ≤15.6 V, avoiding avalanche stress beyond rated 600 W pulse limit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11CA | Same VWM (9.4 V), lower PPPM (400 W), SMA package (smaller thermal mass, higher RθJA). | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 or automotive load dump. | Select only for space-constrained consumer designs with verified <400 W surge exposure. |
| 1.5KE11CA | Higher VWM (9.5 V), same clamping (15.6 V), through-hole DO-201 package, 1500 W PPPM. | Requires PCB real estate and wave soldering; over-specified power for most SMT applications. | Choose when legacy through-hole assembly or extreme surge margin (>1 kW) is required - not drop-in compatible. |
Compared with P6SMB11CAHM3_A/I, SMAJ11CA offers smaller footprint but reduced surge robustness, while 1.5KE11CA provides higher power handling at the cost of SMT compatibility and board space - making P6SMB11CAHM3_A/I the optimal balance of AEC-Q101 reliability, 600 W capability, and SMB manufacturability.
Availability
P6SMB11CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom interface boards, and consumer appliance motor controls requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB11CAHM3_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 high-reliability, automotive-qualified, and industry-standard solutions.
The P6SMB Series is engineered for robust transient suppression in demanding environments - targeting automotive power distribution, industrial control, and communications infrastructure where AEC-Q101 validation and consistent clamping performance are mandatory.
FAQ
What does the "HM3" suffix indicate in P6SMB11CAHM3_A/I?
The HM3 suffix in P6SMB11CAHM3_A/I signifies halogen-free, RoHS-compliant construction with AEC-Q101 qualification - confirmed per Vishay's ordering documentation and datasheet revision 09-Jan-2024. This makes P6SMB11CAHM3_A/I suitable for automotive applications requiring strict material compliance and extended reliability validation, unlike commercial-grade M3 or E3 variants.
Is P6SMB11CAHM3_A/I unidirectional or bidirectional?
P6SMB11CAHM3_A/I is a bidirectional TVS diode, as indicated by the "CA" suffix and confirmed in the Vishay P6SMB datasheet: electrical characteristics apply identically in both directions, with no cathode band marking. This allows symmetric protection of AC-coupled lines, differential buses like RS-485, or dual-rail power domains without polarity concerns - a key distinction from "A"-suffix unidirectional variants.
What is the maximum clamping voltage for P6SMB11CAHM3_A/I at rated peak pulse current?
The maximum clamping voltage (VC) for P6SMB11CAHM3_A/I is 15.6 V at 38.5 A peak pulse current (IPPM), measured under the standard 10/1000 μs double-exponential waveform. This value is specified in the Electrical Characteristics table on page 2 of the Vishay P6SMB datasheet (Doc #88370) and defines the upper voltage limit imposed on protected circuits during worst-case surge events.
Can P6SMB11CAHM3_A/I be used in place of P6SMB11A?
No - P6SMB11CAHM3_A/I is bidirectional and AEC-Q101 qualified, whereas P6SMB11A is unidirectional and commercial grade. Substituting them risks incorrect polarity connection and insufficient automotive reliability. The "CA" vs. "A" suffix denotes fundamental functional difference, and HM3 qualification adds thermal and lifetime validation beyond P6SMB11A's specifications - direct replacement is not supported.
What PCB pad layout is recommended for optimal thermal performance of P6SMB11CAHM3_A/I?
Vishay specifies a minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal for P6SMB11CAHM3_A/I to achieve rated 600 W pulse power and manage junction temperature rise. The SMB (DO-214AA) package's thermal resistance (RθJA = 100 °C/W) assumes this layout; reducing pad size increases thermal impedance and may cause premature failure during repetitive surges - always follow the mounting pad dimensions shown in Figure 5 of datasheet #88370.
P6SMB11CAHM3_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):
- 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_A/I FAQ
1.How can I place an order for P6SMB11CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB11CAHM3_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 P6SMB11CAHM3_A/I reliable?
The price and inventory of P6SMB11CAHM3_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 P6SMB11CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB11CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB11CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB11CAHM3_A/I?
P6SMB11CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB11CAHM3_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 P6SMB11CAHM3_A/I?
For technical support, including P6SMB11CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB11CAHM3_A/I requirements.
6.How does Aetrix verify that P6SMB11CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB11CAHM3_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 P6SMB11CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB11CAHM3_A/I?
All P6SMB11CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB11CAHM3_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 P6SMB11CAHM3_A/I part is unused and in its original packaging.
Return procedure for P6SMB11CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB11CAHM3_A/I Tags
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