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Vishay General Semiconductor - Diodes Division P6SMB43CAHE3/52
- Part No.:
- P6SMB43CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB43CAHE3/52.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,267
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Product details
Overview
P6SMB43CAHE3/52 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 1 mA), 36.8 V stand-off voltage (VWM), 59.3 V maximum clamping voltage (VC) at 10.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the P6SMB43CAHE3/52 datasheet, P6SMB43CAHE3/52 pinout, P6SMB43CAHE3/52 application, or P6SMB43CAHE3/52 equivalent, this device serves as a robust, AEC-Q101-qualified transient suppressor for bidirectional signal line protection where low clamping voltage, fast response (<1 ns), and stable thermal performance up to 150 °C junction temperature are critical selection criteria.
Technical Context
The P6SMB43CAHE3/52 operates symmetrically in both directions due to its bidirectional construction, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable leakage (<1 μA at VWM) and repeatable breakdown behavior across temperature (-65 °C to +150 °C).
It delivers 600 W peak pulse power under standardized 10/1000 μs surge conditions with 0.01% duty cycle, and exhibits low incremental surge resistance for minimal voltage overshoot during high-current events. Thermal resistance is rated at 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 40.9 V / 45.2 V at 1 mA - defines reliable conduction onset for transient clamping |
| VWM | 36.8 V - maximum continuous reverse operating voltage before significant leakage |
| VC @ IPPM | 59.3 V at 10.1 A - clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 600 W - peak transient energy absorption capability per 10/1000 μs pulse |
| IPPM | 10.1 A - maximum non-repetitive surge current the device safely conducts |
| TJ max | +150 °C - enables operation in under-hood automotive and industrial ambient environments |
| Package | SMB (DO-214AA) - surface-mount footprint compatible with automated assembly and IPC-7351B land patterns |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; meets UL 94 V-0 flammability rating and J-STD-002 solderability requirements. Bidirectional configuration has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | Conducts surge current toward cathode during negative transients; symmetrical with cathode |
| Cathode | Transient current entry (positive half-cycle) | Conducts surge current toward anode during positive transients; symmetrical with anode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| 600 W peak pulse power | Withstands high-energy surges common in load-dump and ISO 7637-2 transient scenarios |
| Low clamping ratio (VC/VBR ≈ 1.39) | Minimizes overvoltage stress on downstream ICs such as CAN transceivers or microcontrollers |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
| Glass-passivated junction | Ensures stable leakage current (<1 μA at VWM) and long-term parameter consistency |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
|
Use Scenario: Protecting LIN/CAN bus nodes and analog sensor outputs (e.g., pressure, temperature) from ESD and load-switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector or IC input pins to shunt surge energy before it reaches signal conditioning circuitry. Use Value: Maintains signal integrity under ISO 10605 (30 kV air discharge) and ISO 7637-2 Pulse 1/2a/5a while adding <0.5 pF parasitic capacitance. |
Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges from relay coils or motor drives. IC Role / Device Role / Timing Role: Primary overvoltage protection element on 24 V DC input channels, positioned upstream of optocouplers or level translators. Use Value: Limits transient voltage to ≤59.3 V during 10.1 A surges, preventing latch-up or permanent damage to input stage transistors. |
| Telecom Line Interface | Consumer Appliance Control Board |
|
Use Scenario: Shielding RS-485 transceiver inputs in base station backhaul equipment exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: First-line transient suppressor on differential data lines, working in concert with common-mode chokes and secondary TVS arrays. Use Value: Clamps common-mode transients to safe levels within <1 ns, preserving data integrity during 600 W surge events. |
Use Scenario: Protecting microcontroller GPIOs and display driver lines in washing machines or HVAC controllers from user-interface ESD and motor commutation noise. IC Role / Device Role / Timing Role: Localized TVS on front-panel buttons, encoder inputs, and display ribbon cables to prevent firmware lockup or display corruption. Use Value: Enables compliance with IEC 61000-4-2 Level 4 (8 kV contact / 15 kV air) without requiring board-level redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43CA | Same VBR range (40.9–45.2 V), but lower PPPM = 400 W and higher VC = 69.4 V at 5.8 A | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a | Select when cost sensitivity outweighs surge margin and PCB space allows larger standoff |
| SMCJ43CA | Higher PPPM = 1500 W, same VBR, but larger SMC (DO-214AB) package and higher VC = 69.4 V at 21.7 A | Better for high-power industrial surges; requires more board area and thermal relief | Choose when system-level surge testing exceeds 600 W or when derating for extended lifetime is required |
Compared with SMAJ43CA and SMCJ43CA, the P6SMB43CAHE3/52 delivers optimal balance of compact SMB footprint, AEC-Q101 qualification, and 600 W surge handling - making it preferred for space-constrained automotive and industrial control designs where consistent clamping and reflow compatibility are mandatory.
Availability
P6SMB43CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance control boards requiring stable component supply with full traceability and AEC-Q101 compliance.
Supply support for P6SMB43CAHE3/52 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 telecom systems - engineered for robustness under repetitive surge stress and extended temperature operation without parameter drift.
FAQ
What does the "CA" suffix indicate in P6SMB43CAHE3/52?
The "CA" suffix in P6SMB43CAHE3/52 denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P6SMB43A), it has no cathode band marking and functions identically in either polarity - essential for protecting AC-coupled or differential signal lines where polarity is undefined or reversible.
Is P6SMB43CAHE3/52 suitable for automotive applications?
Yes, P6SMB43CAHE3/52 is AEC-Q101 qualified (indicated by the "HE3" suffix), having passed rigorous stress tests including high-temperature reverse bias, temperature cycling, and ESD per JESD22 standards. It is explicitly rated for under-hood and body-control module use, supporting ISO 7637-2 and ISO 16750-2 compliance when applied per Vishay's recommended layout guidelines.
What is the maximum clamping voltage of P6SMB43CAHE3/52 under surge conditions?
The maximum clamping voltage of P6SMB43CAHE3/52 is 59.3 V, measured at its peak pulse current (IPPM) of 10.1 A using the standardized 10/1000 μs waveform. This value represents the highest voltage imposed on the protected circuit during worst-case transient events and is critical for ensuring downstream components like 48 V-tolerant transceivers remain within safe operating limits.
How does the SMB (DO-214AA) package of P6SMB43CAHE3/52 compare to SMA or SMC packages?
The SMB (DO-214AA) package of P6SMB43CAHE3/52 offers a 30 % smaller footprint than SMC (DO-214AB) and 20 % smaller than SMA (DO-214AC), while maintaining 600 W surge capability. Its 0.220" × 0.130" outline and 0.086" height enable high-density placement on compact PCBs, and its MSL Level 1 rating supports standard lead-free reflow without baking - unlike some larger packages requiring moisture preconditioning.
What is the reverse leakage current specification for P6SMB43CAHE3/52 at rated stand-off voltage?
The reverse leakage current (ID) for P6SMB43CAHE3/52 is guaranteed ≤1.0 μA at its rated stand-off voltage (VWM = 36.8 V) and TA = 25 °C. This ultra-low leakage ensures minimal power loss and signal distortion in always-on monitoring circuits, such as battery-backed sensor nodes or 24 V industrial fieldbus receivers where quiescent current budget is tightly constrained.
P6SMB43CAHE3/52 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:
- Discontinued at Digi-Key
- 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)
P6SMB43CAHE3/52 FAQ
1.How can I place an order for P6SMB43CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB43CAHE3/52 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 P6SMB43CAHE3/52 reliable?
The price and inventory of P6SMB43CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB43CAHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB43CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB43CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB43CAHE3/52?
P6SMB43CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB43CAHE3/52 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 P6SMB43CAHE3/52?
For technical support, including P6SMB43CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB43CAHE3/52 requirements.
6.How does Aetrix verify that P6SMB43CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB43CAHE3/52 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 P6SMB43CAHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB43CAHE3/52?
All P6SMB43CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB43CAHE3/52, 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 P6SMB43CAHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB43CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB43CAHE3/52 Tags
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