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Vishay General Semiconductor - Diodes Division P6SMB11CA-E3/5B
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- Part No.:
- P6SMB11CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB11CA-E3/5B.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,858
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Product details
Overview
P6SMB11CA-E3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 9.4 V stand-off voltage (VWM), 11.6 V maximum breakdown voltage (VBR), 15.6 V clamping voltage (VC) at 38.5 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform - used to protect MOSFETs and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the P6SMB11CA-E3/5B datasheet, P6SMB11CA-E3/5B pinout, P6SMB11CA-E3/5B application, or P6SMB11CA-E3/5B equivalent, key selection criteria include bidirectional clamping symmetry, low clamping ratio (VC/VBR ≈ 1.34), AEC-Q101 qualification eligibility (via HE3/HM3 variants), and compatibility with automated SMT assembly on 0.2" × 0.2" copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical VWM, VBR, IPPM, and VC specifications for positive and negative voltage transients. Its glass-passivated junction ensures stable leakage (<5.0 μA at VWM) and fast response time (<1.0 ns), enabling protection of high-speed signal lines without signal distortion.
The device uses a planar junction structure housed in an SMB (DO-214AA) package rated for 150 °C maximum junction temperature and meets MSL Level 1 per J-STD-020. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation under repetitive surge conditions when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 9.4 V - Maximum continuous reverse voltage before significant conduction begins; sets operating margin below clamping threshold. |
| VBR (Breakdown) | 10.5–11.6 V at 1.0 mA - Guaranteed avalanche onset range; defines minimum transient voltage triggering point. |
| VC (Clamping) | 15.6 V at 38.5 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; determines safe IC withstand level. |
| PPPM | 600 W - Peak transient power dissipation capability; supports robust protection against IEC 61000-4-5 Level 4 surges. |
| IPPM | 38.5 A - Maximum non-repetitive surge current the device can safely clamp; defines protection headroom for inductive switch-off events. |
| Junction Temp | -65 to +150 °C - Operating and storage range compatible with under-hood automotive and industrial environments. |
| Leakage (ID) | ≤5.0 μA at VWM - Negligible standby power loss and no signal loading on DC-biased lines. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, RoHS-compliant, MSL Level 1, reflow-compatible up to 260 °C peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Conducts during negative-going transients; forms symmetrical clamping path with cathode. |
| Cathode | Transient current entry (positive polarity) | Conducts during positive-going transients; enables bidirectional clamping without external series components. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VWM, VBR, and VC in both directions eliminates need for polarity-aware placement in AC-coupled or floating lines. |
| 600 W peak pulse rating | Supports IEC 61000-4-5 4th-level surge immunity (4 kV line-to-line, 2 kV line-to-ground) with margin. |
| Glass passivated junction | Ensures long-term stability of leakage and breakdown parameters across temperature and humidity stress. |
| Low clamping ratio (VC/VBR) | 1.34 - Minimizes overvoltage stress on downstream ICs while maintaining fast response and low capacitance. |
| Automated placement ready | SMB footprint and lead finish comply with J-STD-002/JESD 22-B102; compatible with standard SMT pick-and-place equipment. |
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 inductive switching transients in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector interface to limit transient excursions before reaching sensitive front-end amplifiers or communication ICs. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V sensor signal chains while maintaining signal integrity due to sub-1 ns response and <15 pF junction capacitance. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback, motor drive noise, and field wiring ESD events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC input channels, coordinated with series impedance to limit let-through energy. Use Value: Enables compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) without derating controller ICs or adding secondary protection stages. |
| Telecom Line Interface | Consumer Power Adapter Feedback Path |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs from lightning-induced surges on outdoor or long-distance data lines. IC Role / Device Role / Timing Role: First-line transient suppressor on differential pair, paired with common-mode chokes to handle asymmetrical surges. Use Value: Maintains signal fidelity with <15 pF capacitance and clamps to ≤15.6 V, preserving receiver common-mode range and avoiding false triggering. |
Use Scenario: Securing optocoupler feedback paths in isolated AC/DC adapters against primary-side switching noise coupling into secondary-side regulation loops. IC Role / Device Role / Timing Role: Low-leakage (≤5 μA) bidirectional clamp across TL431 reference input to prevent regulation error during burst-mode transients. Use Value: Eliminates output voltage drift or oscillation caused by transient-induced reference node perturbation, improving load regulation stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11CA | Same SMB package, identical VWM/VBR/VC, but rated for 600 W with tighter VBR tolerance (±5 % vs. ±10 % for P6SMB11CA). | Preferred where tighter breakdown consistency is required across production lots, e.g., precision analog front-ends. | Select SMBJ11CA if design requires guaranteed VBR matching within ±5 %; otherwise P6SMB11CA-E3/5B offers cost-effective performance with full 600 W rating. |
| 1.5SMC11CA | Higher-power 1500 W variant in larger SMC (DO-214AB) package; same VWM/VBR/VC values but higher IPPM (107 A) and thermal mass. | Suitable for higher-energy surge environments (e.g., mains-connected equipment) where PCB space allows larger footprint. | Choose 1.5SMC11CA only when surge threat level exceeds 600 W capability; P6SMB11CA-E3/5B remains optimal for space-constrained, 600 W-class protection. |
Compared with SMBJ11CA, P6SMB11CA-E3/5B trades tighter VBR tolerance for broader manufacturing availability and lower unit cost; compared with 1.5SMC11CA, it delivers identical clamping performance in 40 % less board area but with lower single-pulse energy handling.
Availability
P6SMB11CA-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line drivers, and consumer power adapter feedback circuits requiring stable component supply, RoHS compliance, and SMT-ready packaging.
Supply support for P6SMB11CA-E3/5B 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, TVS devices, and MOSFETs with emphasis on reliability, ruggedness, and application-specific optimization.
The P6SMB Series targets cost-sensitive, high-volume transient protection needs in automotive, industrial, and communications equipment - delivering standardized 600 W surge capability in compact SMB packages with AEC-Q101 qualification options.
FAQ
What is the clamping voltage of the P6SMB11CA-E3/5B under a 10/1000 μs surge?
The P6SMB11CA-E3/5B clamps to a maximum of 15.6 V when subjected to its rated peak pulse current of 38.5 A using the standard 10/1000 μs waveform. This value is measured at the device terminals under specified test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads), and represents the upper bound of voltage seen by protected circuitry during transient events.
Is the P6SMB11CA-E3/5B suitable for automotive applications?
The P6SMB11CA-E3/5B itself is RoHS-compliant and commercial-grade; however, Vishay offers AEC-Q101 qualified versions under ordering codes like P6SMB11CAHE3_B. For automotive use, engineers must specify the HE3 or HM3 suffix variants - the P6SMB11CA-E3/5B is not AEC-Q101 qualified out-of-box but shares identical electrical characteristics and SMB package construction.
How does the bidirectional design of the P6SMB11CA-E3/5B affect PCB layout?
The P6SMB11CA-E3/5B has no polarity marking and functions identically in both directions, eliminating orientation constraints during placement. This simplifies PCB layout for AC-coupled, floating, or differential signal lines - no silkscreen polarity indicators or footprint mirroring are needed, reducing assembly errors and enabling direct replacement of unidirectional TVS diodes in legacy designs with minor routing adjustments.
What is the maximum junction temperature rating for the P6SMB11CA-E3/5B?
The P6SMB11CA-E3/5B is rated for a maximum junction temperature (TJ) of +150 °C and a storage temperature range of -65 to +150 °C. This rating supports operation in under-hood automotive environments and industrial enclosures with elevated ambient temperatures, provided thermal design follows Vishay's recommended 0.2" × 0.2" copper pad layout to maintain RθJA ≤ 100 °C/W.
Does the P6SMB11CA-E3/5B meet moisture sensitivity level (MSL) requirements for lead-free reflow?
Yes, the P6SMB11CA-E3/5B meets MSL Level 1 per J-STD-020, meaning it is not moisture-sensitive and can be subjected to standard lead-free reflow profiles (peak temperature up to 260 °C) without baking or special handling - ideal for high-throughput automated assembly lines with no floor-life limitations.
P6SMB11CA-E3/5B 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:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB11CA-E3/5B FAQ
1.How can I place an order for P6SMB11CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB11CA-E3/5B 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 P6SMB11CA-E3/5B reliable?
The price and inventory of P6SMB11CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB11CA-E3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB11CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB11CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB11CA-E3/5B?
P6SMB11CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB11CA-E3/5B 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 P6SMB11CA-E3/5B?
For technical support, including P6SMB11CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB11CA-E3/5B requirements.
6.How does Aetrix verify that P6SMB11CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB11CA-E3/5B 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 P6SMB11CA-E3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB11CA-E3/5B?
All P6SMB11CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB11CA-E3/5B, 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 P6SMB11CA-E3/5B part is unused and in its original packaging.
Return procedure for P6SMB11CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB11CA-E3/5B Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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