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Vishay General Semiconductor - Diodes Division P6SMB11CAHE3_B/I
- Part No.:
- P6SMB11CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB11CAHE3_B/I.pdf
- Description:
- 600W,11V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,450
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Product details
Overview
P6SMB11CAHE3_B/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 and power lines. It features a 11 V standoff voltage (VWM), 15.6 V maximum clamping voltage at 38.5 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform. It is AEC-Q101 qualified and used in automotive sensor protection circuits.
For engineers reviewing the P6SMB11CAHE3_B/I datasheet, P6SMB11CAHE3_B/I pinout, P6SMB11CAHE3_B/I application, or P6SMB11CAHE3_B/I equivalent, key selection criteria include bidirectional clamping performance, 150 °C junction temperature rating, RoHS-compliant AEC-Q101 qualification, SMB (DO-214AA) package compatibility, and transient immunity for 12 V automotive supply rails.
Technical Context
This bidirectional TVS diode operates symmetrically across both polarities, delivering identical clamping behavior in forward and reverse directions. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance under repetitive 10/1000 μs transients at 0.01% duty cycle.
The device is rated for 100 °C/W junction-to-ambient thermal resistance when mounted on 0.2" × 0.2" copper pads, and meets J-STD-020 MSL Level 1 with 260 °C reflow peak. It exhibits a ±0.075 %/°C temperature coefficient of breakdown voltage and <5.0 μA reverse leakage at 9.4 V standoff.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 9.4 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VBR (Breakdown Voltage) | 10.5–11.6 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on during fast transients. |
| VC (Clamping Voltage) | 15.6 V at 38.5 A IPPM - Peak voltage seen by protected circuit during 600 W transient; critical for IC-level overvoltage margining. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability per 10/1000 μs waveform; validates robustness against ISO 7637-2 Pulse 1/2a/5a events. |
| TJ max | 150 °C - Maximum junction temperature; enables operation in under-hood automotive environments without derating. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated placement and IPC-7351B land patterns. |
| Qualification | AEC-Q101 qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress test plan. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated. Bidirectional configuration has no polarity marking; terminals are symmetrical anode/cathode pair.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals serve identically as current entry/exit points during bidirectional clamping; no cathode band marking required. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC in both directions - eliminates need for polarity-aware layout; simplifies PCB routing for differential or AC-coupled lines. |
| 600 W peak pulse power | Validated per 10/1000 μs waveform - meets IEC 61000-4-5 Level 4 surge immunity requirements for automotive electronics. |
| AEC-Q101 qualification | Includes HTOL, TC, UHAST, and ESD testing - assures long-term reliability in automotive control units and ADAS sensor modules. |
| Low clamping ratio (VC/VWM) | 1.66 - High clamping efficiency minimizes voltage overshoot on protected ICs; critical for 3.3 V/5 V logic interface protection. |
| MSL Level 1 moisture sensitivity | 260 °C peak reflow compatible - supports standard lead-free assembly without baking or special handling. |
Applications
| Automotive Body Control Module (BCM) | Industrial CAN Bus Node |
|---|---|
Use Scenario: Protection of LIN bus transceivers and microcontroller I/O pins against load dump and inductive switching spikes in door module ECUs. IC Role / Device Role / Timing Role: Bidirectional transient clamp placed directly at connector interface to limit voltage excursions below 16 V. Use Value: Prevents latch-up and gate oxide damage in 3.3 V MCU GPIOs during 12 V system transients up to 600 W. |
Use Scenario: Surge suppression on CAN_H/CAN_L lines in factory automation PLC I/O modules exposed to motor drive noise. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed adjacent to CAN transceiver inputs to absorb common-mode surges. Use Value: Maintains signal integrity by clamping transients to ≤15.6 V while adding <0.5 pF parasitic capacitance at 0 V bias. |
| Automotive Camera Sensor Interface | Telecom Power Supply Input |
Use Scenario: Input protection for FPD-Link III serializer ICs in rear-view camera modules subjected to ISO 16750-2 jump-start pulses. IC Role / Device Role / Timing Role: First-line defense against 24 V battery transients on 12 V supply rail feeding image sensor subsystems. Use Value: Enables compliance with ISO 16750-2 Test Pulse 4 (jump start) by limiting input rail excursion to 15.6 V for ≥100 ms. |
Use Scenario: Secondary overvoltage protection on -48 V telecom rectifier outputs against lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamp on DC output stage to protect downstream DC/DC converters from reverse-polarity transients. Use Value: Provides symmetrical clamping for both positive and negative surge events without polarity-dependent failure modes. |
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 (smaller footprint, higher RθJA). | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a or high-duty-cycle industrial environments. | Select when board space is constrained and surge energy does not exceed 400 W. |
| 1.5KE11CA | Higher PPPM (1500 W), axial-leaded DO-201 package; slower response due to higher junction capacitance and inductance. | Not suitable for high-speed data lines or automated SMT assembly; requires through-hole mounting and larger keep-out area. | Choose only for legacy through-hole designs requiring >600 W surge handling and where layout density is not critical. |
Compared with SMAJ11CA and 1.5KE11CA, P6SMB11CAHE3_B/I delivers optimal balance of 600 W surge capacity, SMB SMT compatibility, AEC-Q101 qualification, and bidirectional symmetry-making it the preferred choice for new automotive and industrial SMT designs requiring validated reliability and standardized footprint.
Availability
P6SMB11CAHE3_B/I is available at Aetrix Electronics and suitable for automotive body electronics, industrial CAN networks, camera sensor interfaces, and telecom power supply inputs requiring stable component supply and AEC-Q101 traceability.
Supply support for P6SMB11CAHE3_B/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The P6SMB Series is engineered specifically for high-reliability transient suppression in automotive and industrial environments, combining AEC-Q101 validation, robust 600 W surge capability, and standardized SMB packaging for seamless integration into harsh-environment electronics.
FAQ
What is the clamping voltage of P6SMB11CAHE3_B/I at its rated peak pulse current?
The P6SMB11CAHE3_B/I has a maximum clamping voltage (VC) of 15.6 V at 38.5 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value is specified in the Vishay datasheet Document Number 88370, page 2, and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The low clamping ratio (VC/VWM = 1.66) ensures effective protection for 12 V system components.
Is P6SMB11CAHE3_B/I suitable for automotive applications?
Yes, P6SMB11CAHE3_B/I is AEC-Q101 qualified, as confirmed by the "HE3_B" suffix and documentation in Vishay's P6SMB datasheet (Revision 09-Jan-2024). It undergoes stress testing including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing-making it suitable for under-hood and cabin-mounted automotive electronics such as BCMs, ADAS sensors, and infotainment power supplies.
What does the "CA" suffix indicate in P6SMB11CAHE3_B/I?
The "CA" suffix in P6SMB11CAHE3_B/I denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression in both polarities. Unlike unidirectional variants (e.g., P6SMB11A), this version has no cathode marking and delivers identical breakdown (10.5–11.6 V) and clamping (15.6 V) characteristics regardless of voltage polarity-ideal for protecting AC-coupled or differential signal paths like CAN or LIN buses.
What is the thermal resistance of P6SMB11CAHE3_B/I, and how does it affect layout?
P6SMB11CAHE3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as stated in the Thermal Characteristics table (page 3 of datasheet 88370). This value assumes minimum recommended pad layout; reducing pad size or omitting thermal vias increases junction temperature and may require derating of surge capability above 25 °C ambient.
How does P6SMB11CAHE3_B/I differ from P6SMB11AHE3_B/I?
P6SMB11CAHE3_B/I is bidirectional with symmetrical clamping in both polarities and no polarity marking, whereas P6SMB11AHE3_B/I is unidirectional with a cathode band and conducts only in reverse bias. The "C" in "CA" explicitly indicates bidirectionality per Vishay's naming convention (see "DEVICES FOR BIDIRECTION APPLICATIONS" section, page 1). Both share identical VWM (9.4 V), VBR (10.5–11.6 V), and VC (15.6 V), but only the CA version protects AC signals or dual-rail systems without polarity constraints.
P6SMB11CAHE3_B/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:
- 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)
P6SMB11CAHE3_B/I FAQ
1.How can I place an order for P6SMB11CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB11CAHE3_B/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 P6SMB11CAHE3_B/I reliable?
The price and inventory of P6SMB11CAHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB11CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB11CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB11CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB11CAHE3_B/I?
P6SMB11CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB11CAHE3_B/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 P6SMB11CAHE3_B/I?
For technical support, including P6SMB11CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB11CAHE3_B/I requirements.
6.How does Aetrix verify that P6SMB11CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB11CAHE3_B/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 P6SMB11CAHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB11CAHE3_B/I?
All P6SMB11CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB11CAHE3_B/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 P6SMB11CAHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB11CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB11CAHE3_B/I Tags
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