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Vishay General Semiconductor - Diodes Division P6SMB43CA-M3/52
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- Part No.:
- P6SMB43CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB43CA-M3/52.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,379
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Product details
Overview
P6SMB43CA-M3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features a 36.8 V stand-off voltage (VWM), 40.9–45.2 V breakdown voltage (VBR) at 1 mA, 59.3 V maximum clamping voltage (VC) at 10.1 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the P6SMB43CA-M3/52 datasheet, P6SMB43CA-M3/52 pinout, P6SMB43CA-M3/52 application, or P6SMB43CA-M3/52 equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal resistance (RθJA = 100 °C/W), RoHS-compliant halogen-free construction, and AEC-Q101 qualification context for automotive-grade design validation.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, enabling transient suppression without polarity sensitivity on AC-coupled or differential signal paths. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns), while low incremental surge resistance supports effective energy diversion during ESD or lightning-induced surges.
The device is rated for repetitive 600 W pulses at 0.01 % duty cycle and derates linearly above 25 °C ambient per Fig. 2. With a maximum junction temperature of +150 °C and MSL Level 1 moisture sensitivity, it supports lead-free reflow up to 260 °C peak, making it suitable for high-reliability automated SMT assembly in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 36.8 V - Maximum continuous reverse voltage before conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown) | 40.9–45.2 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on during overvoltage events. |
| VC (Clamping) | 59.3 V at 10.1 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines safe voltage headroom for downstream components. |
| PPPM | 600 W - Peak pulse power handling capacity under standardized 10/1000 μs waveform; key for surge immunity compliance (IEC 61000-4-5). |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance; informs PCB copper pad sizing (0.2" × 0.2") for thermal management. |
| IPPM | 10.1 A - Peak pulse current corresponding to VC; used to size upstream fusing and estimate energy absorption (≈60 J). |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive or industrial enclosures. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. No polarity marking - bidirectional symmetry eliminates cathode/anode orientation concerns during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | Both terminals function identically; no DC bias dependency - ideal for AC lines, differential buses (e.g., RS-485), and floating sensor inputs. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection on AC or differential signals without external polarity management or dual-diode configurations. |
| 600 W peak pulse power | Meets IEC 61000-4-5 Level 4 surge immunity requirements when mounted on recommended 5.0 mm × 5.0 mm copper pads. |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage stress on protected ICs - critical for 3.3 V or 5 V logic interfacing with higher-voltage domains. |
| AEC-Q101 qualified option | Available as HM3 variant (e.g., P6SMB43CAHM3_B); validated for automotive under-hood applications including engine control and ADAS sensor modules. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT processes without baking or special handling - reduces manufacturing complexity and cost. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential signal pairs or supply rails to limit transient excursions below IC absolute maximum ratings. Use Value: Prevents latch-up or permanent damage in 12 V/24 V automotive systems where transients exceed 100 V; leverages symmetrical clamping to avoid polarity misplacement. |
Use Scenario: Safeguarding RS-485 transceivers in factory automation PLCs exposed to motor switching noise and ground loop surges. IC Role / Device Role / Timing Role: Placed line-to-line and line-to-ground to suppress common-mode and differential-mode transients without distorting data integrity. Use Value: Maintains signal fidelity during 4 kV ESD and 1 kV surge events (IEC 61000-4-4/5), with <1 ns response preserving timing margins in full-duplex communication. |
| Consumer Power Adapter Input | Medical Equipment Signal Conditioning |
Use Scenario: Secondary-side transient suppression on 5–24 V DC outputs of wall adapters and USB PD chargers against capacitive coupling and hot-plug spikes. IC Role / Device Role / Timing Role: Low-capacitance (≈100 pF at 0 V) bidirectional clamp minimizing signal distortion on regulated output rails. Use Value: Ensures compliance with UL 62368-1 surge withstand requirements while avoiding regulation loop instability caused by high-C alternatives. |
Use Scenario: Protecting analog front-end amplifiers and ADC inputs in portable diagnostic devices from ESD during probe handling and cable coupling. IC Role / Device Role / Timing Role: Low-leakage (<1 μA at 36.8 V) TVS placed directly at connector entry to shunt sub-100 ns ESD events before reaching precision circuitry. Use Value: Preserves measurement accuracy by limiting clamped voltage to 59.3 V - well below typical op-amp rail limits - without introducing offset or drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43CA | Same SMB package, identical VWM/VBR/VC, but rated for 600 W with tighter VBR tolerance (±5 % vs. ±10 % for P6SMB series) and lower RθJA (85 °C/W). | Preferred where tighter parametric consistency and improved thermal performance are required in space-constrained designs. | Select SMBJ43CA if board layout allows optimized thermal pads and tighter VBR spec is needed for margin-critical systems. |
| 1.5SMC43CA | Higher-power 1500 W version in larger SMC (DO-214AB) package; same VWM/VBR/VC values but requires 3.5× more PCB area and has higher RθJA (50 °C/W). | Used where system-level surge testing exceeds 600 W (e.g., outdoor telecom equipment) and board space permits larger footprint. | Choose 1.5SMC43CA only when P6SMB43CA-M3/52's 600 W rating is insufficient and thermal design accommodates SMC package. |
Compared with SMBJ43CA, P6SMB43CA-M3/52 offers broader VBR tolerance and halogen-free compliance out-of-box, while 1.5SMC43CA trades compactness for higher surge capacity - making P6SMB43CA-M3/52 optimal for cost-sensitive, space-constrained automotive and industrial SMT applications requiring AEC-Q101 readiness.
Availability
P6SMB43CA-M3/52 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial RS-485 networks, consumer power adapter outputs, and medical signal conditioning circuits requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification path support.
Supply support for P6SMB43CA-M3/52 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets cost-effective, high-volume transient protection for automotive, industrial, and consumer electronics - balancing robust surge handling, SMT manufacturability, and environmental compliance in standardized SMB packaging.
FAQ
What is the clamping voltage of P6SMB43CA-M3/52 at its rated peak pulse current?
The P6SMB43CA-M3/52 has a maximum clamping voltage (VC) of 59.3 V at 10.1 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings. The P6SMB43CA-M3/52 maintains this clamping performance across its full operating temperature range.
Is P6SMB43CA-M3/52 suitable for automotive applications?
Yes - while the base P6SMB43CA-M3/52 is commercial-grade, Vishay offers AEC-Q101-qualified variants under the HM3 suffix (e.g., P6SMB43CAHM3_B). These versions undergo stress testing per automotive reliability standards and are intended for under-hood and chassis-mounted modules. The P6SMB43CA-M3/52 itself shares identical electrical specs and SMB package dimensions, enabling direct migration to qualified versions during design-in or qualification phases.
How does the bidirectional nature of P6SMB43CA-M3/52 affect PCB layout?
The P6SMB43CA-M3/52 has no polarity marking and functions identically in both directions, eliminating orientation constraints during pick-and-place. This simplifies layout for differential interfaces like RS-485 or CAN, where it can be placed line-to-line without concern for anode/cathode alignment. Layout must still follow Vishay's recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to sustain 600 W pulse power - a requirement independent of polarity.
What is the maximum steady-state power dissipation of P6SMB43CA-M3/52?
The P6SMB43CA-M3/52 has a maximum steady-state power dissipation (PD) of 5.0 W at TA = 50 °C on an infinite heatsink. This rating applies only to continuous DC or low-frequency reverse leakage conditions - not transient suppression. In normal operation, leakage current remains below 1.0 μA at 36.8 V, resulting in negligible static power. The 5.0 W rating primarily informs thermal design margins during abnormal sustained overvoltage scenarios.
Does P6SMB43CA-M3/52 meet any industry surge immunity standards?
The P6SMB43CA-M3/52 is engineered to support compliance with IEC 61000-4-5 (surge immunity) and IEC 61000-4-2 (ESD) when applied per Vishay's recommended layout - specifically using 0.2" × 0.2" copper pads and proper grounding. Its 600 W peak pulse power rating corresponds to Level 4 (4 kV line-earth, 2 kV line-line) surge testing under 10/1000 μs waveform. System-level validation remains the designer's responsibility, but the P6SMB43CA-M3/52 provides the foundational clamping performance required.
P6SMB43CA-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB43CA-M3/52 FAQ
1.How can I place an order for P6SMB43CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB43CA-M3/52 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 P6SMB43CA-M3/52 reliable?
The price and inventory of P6SMB43CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB43CA-M3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB43CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB43CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB43CA-M3/52?
P6SMB43CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB43CA-M3/52 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 P6SMB43CA-M3/52?
For technical support, including P6SMB43CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB43CA-M3/52 requirements.
6.How does Aetrix verify that P6SMB43CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB43CA-M3/52 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 P6SMB43CA-M3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB43CA-M3/52?
All P6SMB43CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB43CA-M3/52, 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 P6SMB43CA-M3/52 part is unused and in its original packaging.
Return procedure for P6SMB43CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB43CA-M3/52 Tags
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