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Vishay General Semiconductor - Diodes Division P6SMB11CAHM3_B/H
- Part No.:
- P6SMB11CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB11CAHM3_B/H.pdf
- Description:
- 600W,11V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,505
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Product details
Overview
P6SMB11CAHM3_B/H 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), 15.6 V maximum clamping voltage (VC) at 38.5 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the P6SMB11CAHM3_B/H datasheet, P6SMB11CAHM3_B/H pinout, P6SMB11CAHM3_B/H application, or P6SMB11CAHM3_B/H equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification, SMB (DO-214AA) package compatibility, and thermal resistance (RθJA = 100 °C/W) for board-level surge protection design.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with breakdown voltage (VBR) specified at 10.5–11.6 V (min/max) under 1 mA test current and clamps to ≤15.6 V at 38.5 A IPPM. Its glass-passivated junction ensures stable leakage (<5 μA at VWM) and fast response time (<1 ns), enabling protection against ESD, lightning-induced surges, and inductive switching transients.
The device is halogen-free, RoHS-compliant, and qualified to AEC-Q101 for automotive applications. It uses an SMB (DO-214AA) package with matte tin-plated leads, rated for MSL level 1 reflow (peak 260 °C), and exhibits a temperature coefficient of VBR of +0.075 %/°C - critical for stable clamping across operating junction temperatures from –65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 9.40 V - maximum reverse voltage before significant conduction; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 10.5–11.6 V at 1 mA - precise voltage at which avalanche conduction begins in either polarity |
| VC (Clamping Voltage) | ≤15.6 V at 38.5 A IPPM - peak voltage seen by protected circuit during worst-case transient |
| PPPM (Peak Pulse Power) | 600 W with 10/1000 μs waveform - energy-handling capacity for repetitive surge events at 0.01% duty cycle |
| RθJA | 100 °C/W - thermal resistance from junction to ambient; determines derating above 25 °C ambient |
| TJmax | +150 °C - maximum allowable junction temperature; supports operation in under-hood automotive environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
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 may connect to line or ground - enables placement flexibility in AC-coupled or floating signal paths |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Supports robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without derating on standard PCB pads |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage stress on downstream ICs - critical for 3.3 V and 5 V logic interfaces |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain, body electronics, and ADAS modules requiring zero-failure field reliability |
| MSL Level 1, 260 °C peak reflow | Compatible with standard lead-free SMT assembly processes without preconditioning or special handling |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and automotive material compliance requirements (e.g., GMW3172) |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Analog Input Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN 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 clamping element placed across differential signal pairs or between signal and chassis ground. Use Value: Limits transient voltage to ≤15.6 V, preventing latch-up or gate oxide damage in 5 V tolerant transceivers while maintaining signal integrity. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers against field wiring surges and ESD. IC Role / Device Role / Timing Role: Primary front-end TVS on input terminals, coordinated with series impedance and filtering to meet IEC 61000-4-4/5 immunity. Use Value: Absorbs 600 W surges without degradation, enabling single-stage protection architecture and reducing BOM count vs. multi-component solutions. |
| Consumer Device USB Port Protection | Telecom Line Card Surge Protection |
|
Use Scenario: Clamping induced transients on USB 2.0 D+/D− lines in set-top boxes and smart home hubs exposed to nearby lightning or AC coupling. IC Role / Device Role / Timing Role: Low-capacitance bidirectional suppressor placed directly at connector, before ESD diode array. Use Value: Fast <1 ns response and 15.6 V clamping prevent data corruption during 8 kV contact ESD events per IEC 61000-4-2. |
Use Scenario: Secondary protection on telephone line interface circuits (e.g., SLIC, codec) in VoIP gateways and PBX systems subjected to longitudinal surges. IC Role / Device Role / Timing Role: Coordinated with gas discharge tube (GDT) primary protector to handle high-energy surges while limiting let-through voltage. Use Value: 600 W rating and low Rsurge ensure reliable energy diversion without thermal runaway during repeated 10/1000 μs transients. |
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) and VC (15.6 V), but lower PPPM (400 W); SMA package (DO-214AC), higher RθJA (140 °C/W) | Not AEC-Q101 qualified; suitable for commercial-grade consumer or telecom equipment only | Select when cost sensitivity outweighs automotive qualification and surge margin requirements |
| 1.5KE11CA | Higher power (1500 W), axial-leaded DO-201 package; VC = 18.2 V at 82.8 A - looser clamping ratio | Through-hole mounting only; incompatible with automated SMT lines and space-constrained PCBs | Choose for legacy designs or high-energy industrial mains protection where board real estate permits axial components |
Compared with SMAJ11CA and 1.5KE11CA, P6SMB11CAHM3_B/H delivers AEC-Q101 reliability in an SMT-optimized SMB package with superior clamping precision (VC/VBR = 1.42) and thermal performance - making it the preferred choice for next-generation automotive and industrial edge devices requiring zero-defect surge resilience.
Availability
P6SMB11CAHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC analog inputs, consumer USB port protection, and telecom line card surge protection requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB11CAHM3_B/H 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, efficiency, and application-specific optimization.
The P6SMB series targets high-reliability transient suppression in automotive, industrial, and communications infrastructure - engineered for robustness under harsh electrical and thermal conditions while meeting stringent automotive qualification standards.
FAQ
What does the "HM3_B/H" suffix indicate in P6SMB11CAHM3_B/H?
The "HM3" denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification; "B" indicates AEC-Q101 qualification level for P6SMB6.8CA to P6SMB220CA variants; "H" specifies 7″ plastic tape-and-reel packaging (750 units per reel). This full suffix confirms P6SMB11CAHM3_B/H meets automotive-grade material and reliability requirements in a standard SMT format.
Is P6SMB11CAHM3_B/H unidirectional or bidirectional?
P6SMB11CAHM3_B/H is a bidirectional TVS diode, as confirmed by the "CA" suffix in its part number and its symmetrical electrical characteristics - VBR, VWM, and VC apply identically in both polarities. It has no cathode band marking and is intended for AC-coupled or floating signal line protection where polarity reversal may occur.
What is the maximum clamping voltage of P6SMB11CAHM3_B/H under surge conditions?
The maximum clamping voltage (VC) of P6SMB11CAHM3_B/H is 15.6 V, measured at 38.5 A peak pulse current (IPPM) using the standardized 10/1000 μs double-exponential waveform. This value is guaranteed across the full operating temperature range and forms the upper voltage limit imposed on protected circuitry during transient events.
Can P6SMB11CAHM3_B/H replace P6SMB11A in a design?
No - P6SMB11CAHM3_B/H is bidirectional, whereas P6SMB11A is unidirectional. Their VBR, VWM, and VC values differ: P6SMB11A has VWM = 9.4 V and VC = 17.0 V (vs. 15.6 V for P6SMB11CAHM3_B/H), and it requires correct cathode orientation. Substitution would require schematic and layout review to confirm polarity compatibility and clamping margin.
What PCB pad layout is recommended for P6SMB11CAHM3_B/H?
Vishay specifies a minimum 0.2″ × 0.2″ (5.0 mm × 5.0 mm) copper pad area per terminal for P6SMB11CAHM3_B/H to achieve rated 600 W pulse power dissipation. The SMB (DO-214AA) outline drawing shows terminal width of 0.084–0.096″ (2.13–2.44 mm); pads should match this width with ≥0.012″ (0.305 mm) solder mask clearance to ensure thermal and mechanical reliability during reflow and surge events.
P6SMB11CAHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- 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_B/H FAQ
1.How can I place an order for P6SMB11CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB11CAHM3_B/H 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_B/H reliable?
The price and inventory of P6SMB11CAHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB11CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB11CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB11CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB11CAHM3_B/H?
P6SMB11CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB11CAHM3_B/H 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_B/H?
For technical support, including P6SMB11CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB11CAHM3_B/H requirements.
6.How does Aetrix verify that P6SMB11CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB11CAHM3_B/H 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_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB11CAHM3_B/H?
All P6SMB11CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB11CAHM3_B/H, 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_B/H part is unused and in its original packaging.
Return procedure for P6SMB11CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB11CAHM3_B/H Tags
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