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Vishay General Semiconductor - Diodes Division P6SMB43CAHE3_A/H
- Part No.:
- P6SMB43CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB43CAHE3_A/H.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,107
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Product details
Overview
P6SMB43CAHE3_A/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 43 V breakdown voltage (VBR = 40.9–45.2 V at IT = 1.0 mA), 59.3 V maximum clamping voltage (VC) at 10.1 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P6SMB43CAHE3_A/H datasheet, P6SMB43CAHE3_A/H pinout, P6SMB43CAHE3_A/H application, or P6SMB43CAHE3_A/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, SMB (DO-214AA) package compatibility, and thermal resistance (RθJA = 100 °C/W) for board-level surge protection design.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM = 36.8 V), while the 150 °C maximum junction temperature supports operation in under-hood automotive environments.
The device delivers fast response time (<1.0 ns) and low incremental surge resistance, allowing it to limit transient overvoltage before sensitive downstream components are damaged. It meets J-STD-020 MSL Level 1 and is qualified to AEC-Q101, confirming suitability for automotive-grade reliability requirements including temperature cycling and humidity exposure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 40.9 V / 45.2 V at 1.0 mA test current - defines precise voltage threshold where clamping begins |
| VWM | 36.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 59.3 V at 10.1 A - clamped voltage seen by protected circuit during 600 W transient event |
| PPPM | 600 W - peak pulse power handling with 10/1000 µs waveform, supporting IEC 61000-4-5 compliance |
| RθJA | 100 °C/W - thermal resistance from junction to ambient, guiding PCB copper pad sizing for thermal management |
| TJ max. | +150 °C - enables use in high-temperature automotive and industrial control applications |
| AEC-Q101 | Qualified - validated for automotive electronics per stress test standard including HTOL, TC, HAST |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. No polarity marking for bidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | One terminal of symmetrical PN junction; connects to line being protected without polarity constraint |
| Cathode | Transient return path (bidirectional) | Second terminal of symmetrical PN junction; functionally identical to Anode in bidirectional configuration |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC signals, differential buses, or ungrounded lines without polarity concerns |
| 600 W peak pulse power | Withstands high-energy surges such as ISO 7637-2 Pulse 5a/b or IEC 61000-4-5 Combination Wave (1.2/50 µs + 8/20 µs) |
| AEC-Q101 qualification | Validates reliability for automotive powertrain, body electronics, and ADAS sensor interfaces |
| MSL Level 1 | Allows unlimited floor life and reflow compatibility up to 260 °C peak temperature |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage across temperature and lifetime |
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 vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential signal pair or supply rail to clamp ±60 V transients within nanoseconds. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V sensor interface ICs while maintaining signal integrity during ESD and surge events. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to 24 V DC field wiring with long cable runs. IC Role / Device Role / Timing Role: Standoff voltage (VWM = 36.8 V) allows normal 24 V operation while clamping 400 V surges induced by relay coil de-energization. Use Value: Eliminates need for external series impedance or RC filtering, reducing BOM count and board space in DIN-rail mounted controllers. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding Ethernet PHY or RS-485 transceivers in network equipment from lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Placed between data lines and ground to suppress common-mode transients up to 600 W without distorting 100 Mbps signal edges. Use Value: Meets GR-1089-CORE Level 3 surge immunity without compromising signal rise/fall times due to low junction capacitance (~100 pF). | Use Scenario: Protecting microcontroller GPIOs and gate drivers in washing machine motor inverters from back-EMF spikes during brushless DC motor commutation. IC Role / Device Role / Timing Role: Mounted at motor driver output stage to absorb repetitive 100 A inductive kickback pulses with 0.01 % duty cycle. Use Value: Extends MCU lifespan by limiting voltage overshoot to ≤59.3 V, preventing gate oxide breakdown in integrated half-bridge drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43CA | Same VBR range (40.9–45.2 V), but rated for 600 W with 8.3 ms surge rating; no AEC-Q101 qualification | Targeted at commercial/industrial use only; not approved for automotive production | Select when AEC-Q101 is not required and cost optimization is prioritized |
| 1.5KE43CA | Through-hole DO-201 package; same VBR and VC, but higher RθJA (60 °C/W) and lower mounting density | Used where manual assembly or legacy through-hole designs persist | Choose only if SMB footprint is incompatible with existing layout or rework constraints apply |
Compared with SMBJ43CA and 1.5KE43CA, P6SMB43CAHE3_A/H provides automotive-grade reliability in a compact surface-mount package, enabling higher board density and eliminating manual soldering - critical for automated manufacturing of modern ECUs and IoT edge devices.
Availability
P6SMB43CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance motor control requiring stable component supply and AEC-Q101 traceability.
Supply support for P6SMB43CAHE3_A/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 and application-specific performance.
The P6SMB series was developed to deliver high-power, low-profile TVS protection for automotive and industrial systems where space, thermal performance, and qualification rigor are critical - especially for 12 V/24 V battery-connected electronics.
FAQ
What is the clamping voltage of P6SMB43CAHE3_A/H under a 10/1000 µs surge?
The P6SMB43CAHE3_A/H clamps to a maximum of 59.3 V when subjected to its rated 10.1 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured at TA = 25 °C and reflects worst-case voltage seen by protected circuitry during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings. The P6SMB43CAHE3_A/H maintains this clamping performance across its full operating temperature range.
Is P6SMB43CAHE3_A/H suitable for automotive applications?
Yes, P6SMB43CAHE3_A/H is AEC-Q101 qualified and specifically designated for automotive use via the "HE3" suffix and revision code "_A/H". It has passed stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and unbiased highly accelerated stress testing (uHAST), making it appropriate for engine control units, body electronics, and ADAS sensor interfaces where reliability under harsh conditions is mandatory. The P6SMB43CAHE3_A/H meets all requirements for under-hood deployment up to +150 °C junction temperature.
How does the bidirectional design of P6SMB43CAHE3_A/H affect its circuit placement?
The bidirectional nature of P6SMB43CAHE3_A/H means it functions identically in either orientation - no cathode band or polarity marking is present, simplifying layout and eliminating risk of reverse installation. This allows direct placement across differential signal pairs (e.g., RS-485, CAN), AC power rails, or ungrounded communication lines without concern for directionality. Unlike unidirectional TVS diodes, the P6SMB43CAHE3_A/H provides symmetrical clamping above and below ground reference, essential for protecting balanced interfaces.
What is the standoff voltage rating for P6SMB43CAHE3_A/H?
The standoff voltage (VWM) of P6SMB43CAHE3_A/H is 36.8 V - the maximum continuous reverse voltage that can be applied without exceeding 1.0 µA leakage current. This rating ensures reliable operation in 24 V automotive and industrial systems, providing margin above nominal supply while remaining well below the 40.9 V minimum breakdown threshold. The P6SMB43CAHE3_A/H remains non-conductive during normal operation, minimizing power loss and avoiding interference with signal integrity.
Does P6SMB43CAHE3_A/H require special PCB layout considerations?
Yes - to achieve rated 600 W pulse power, P6SMB43CAHE3_A/H must be mounted on minimum recommended copper pads: 0.2" x 0.2" (5.0 mm x 5.0 mm) per terminal, per Vishay's datasheet Figure 2. Smaller pads increase thermal resistance and reduce surge capability. Additionally, short, wide traces should connect the P6SMB43CAHE3_A/H directly between protected line and ground plane to minimize inductance and preserve sub-nanosecond response. Avoid routing sensitive signals near the P6SMB43CAHE3_A/H's terminals to prevent coupling.
P6SMB43CAHE3_A/H 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):
- 36.8V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 59.3V
- Current - Peak Pulse (10/1000µs):
- 10.1A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB43CAHE3_A/H FAQ
1.How can I place an order for P6SMB43CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB43CAHE3_A/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 P6SMB43CAHE3_A/H reliable?
The price and inventory of P6SMB43CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB43CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB43CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB43CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB43CAHE3_A/H?
P6SMB43CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB43CAHE3_A/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 P6SMB43CAHE3_A/H?
For technical support, including P6SMB43CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB43CAHE3_A/H requirements.
6.How does Aetrix verify that P6SMB43CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB43CAHE3_A/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 P6SMB43CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB43CAHE3_A/H?
All P6SMB43CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB43CAHE3_A/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 P6SMB43CAHE3_A/H part is unused and in its original packaging.
Return procedure for P6SMB43CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB43CAHE3_A/H Tags
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