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Vishay General Semiconductor - Diodes Division P6SMB43CAHM3_A/H
- Part No.:
- P6SMB43CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB43CAHM3_A/H.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,197
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Product details
Overview
P6SMB43CAHM3_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 and power lines. It features a 43 V breakdown voltage (VBR = 40.9–45.2 V at IT = 1.0 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 capability with 10/1000 µs waveform - used to protect automotive sensor interfaces and industrial I/O circuits.
For engineers reviewing the P6SMB43CAHM3_A/H datasheet, P6SMB43CAHM3_A/H pinout, P6SMB43CAHM3_A/H application, or P6SMB43CAHM3_A/H equivalent, this device serves as a halogen-free, AEC-Q101-qualified transient protector for bidirectional signal lines where low clamping voltage, fast response (<1 ns), and robust surge immunity (100 A IFSM) are required in space-constrained SMB packages.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping behavior in forward and reverse directions - critical for AC-coupled or differential data lines. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and low incremental surge resistance, enabling precise overvoltage limiting without signal distortion.
The device is rated for continuous power dissipation of 5.0 W at TA = 50 °C and exhibits a thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads. Its MSL Level 1 rating (peak reflow ≤260 °C) supports lead-free automated assembly without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 40.9 V / 45.2 V at 1.0 mA test current - defines reliable conduction onset under transient stress |
| VWM | 36.8 V - maximum continuous reverse voltage before significant leakage begins |
| VC @ IPPM | 59.3 V at 10.1 A - clamping voltage during 600 W 10/1000 µs surge, limiting downstream IC stress |
| IPPM | 10.1 A - peak pulse current supported with full power rating and no degradation |
| PPPM | 600 W - peak transient energy absorption capacity per single 10/1000 µs event |
| TJ max. | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| Package | SMB (DO-214AA) - 3.94 mm × 2.20 mm footprint compatible with high-density PCB layouts |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking - symmetrical anode/cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Provides low-impedance path to ground or rail during either polarity surge event |
| Cathode | Transient return path (bidirectional) | Electrically identical to Anode; device functions identically regardless of orientation |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC-coupled or floating differential lines without polarity constraints |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) on 50 Ω lines |
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JESD201 Class 2 whisker resistance requirements |
| MSL Level 1 | Supports Pb-free reflow soldering at 260 °C peak without baking or special handling |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN FD and LIN bus transceivers from load dump and ESD events in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional transient clamp placed directly at connector entry point before signal conditioning circuitry. Use Value: Limits induced transients to ≤59.3 V, preventing latch-up or damage to 5 V tolerant transceivers while maintaining signal integrity. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring surges and inductive kickback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on each isolated input channel, paired with optocoupler input stage. Use Value: Clamps 1 kV/0.5 Ω surge to <60 V within <1 ns, ensuring input logic remains functional after repeated exposure. |
| Telecom Line Interface | Consumer USB Port Protection |
|
Use Scenario: Shielding RS-485 transceivers in base station backhaul equipment from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Secondary protection device placed after gas discharge tube (GDT) primary stage. Use Value: Provides low-clamp secondary limiting (59.3 V) to prevent GDT follow-on current from damaging transceiver ICs. |
Use Scenario: Protecting USB 2.0 D+/D− lines in portable media players from human-body-model ESD (±15 kV contact). IC Role / Device Role / Timing Role: Bidirectional TVS placed adjacent to USB connector, before ESD filter capacitor. Use Value: Responds in <1 ns to divert >8 kV ESD pulses, holding line voltage below 6 V to preserve USB PHY functionality. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43CA | Same VBR range but lower PPPM (400 W), larger SMA package (4.5 × 2.7 mm) | Limited to lower-energy transients; less suitable for IEC 61000-4-5 Level 4 compliance | Select when board space allows larger footprint and surge requirements are ≤400 W |
| SMCJ43CA | Higher PPPM (1500 W), same VBR, larger SMC package (7.1 × 6.2 mm) | Overqualified for 600 W needs; adds cost and area without benefit for typical sensor-level protection | Choose only when system-level testing requires margin beyond 600 W or higher IPPM |
Compared with SMAJ43CA and SMCJ43CA, P6SMB43CAHM3_A/H delivers optimal balance of 600 W surge capability, SMB footprint efficiency, and AEC-Q101 qualification - making it the preferred choice for automotive and industrial edge-node protection where space, reliability, and standardized surge performance are jointly constrained.
Availability
P6SMB43CAHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line drivers, and consumer USB port protection requiring stable component supply and AEC-Q101 traceability.
Supply support for P6SMB43CAHM3_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 automotive-grade qualification.
The P6SMB series was developed specifically for surface-mount transient suppression in space-constrained, high-reliability applications - targeting automotive, industrial, and telecom systems needing robust, bidirectional, and AEC-Q101-compliant TVS solutions.
FAQ
What is the clamping voltage of P6SMB43CAHM3_A/H at its rated peak pulse current?
The P6SMB43CAHM3_A/H 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 standards and guarantees that downstream circuitry sees no more than 59.3 V during a full 600 W transient event. The P6SMB43CAHM3_A/H maintains this clamping performance across its operating temperature range of –65 °C to +150 °C.
Is P6SMB43CAHM3_A/H suitable for automotive applications?
Yes, P6SMB43CAHM3_A/H is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials. Its SMB package meets MSL Level 1, supporting lead-free reflow up to 260 °C, and its 150 °C maximum junction temperature enables under-hood deployment. The P6SMB43CAHM3_A/H is explicitly listed in Vishay's automotive ordering codes (HM3 suffix) and validated for use in engine control units, ADAS sensors, and body electronics.
How does the bidirectional design of P6SMB43CAHM3_A/H affect PCB layout?
The P6SMB43CAHM3_A/H has no polarity marking and functions identically in either orientation, eliminating orientation errors during automated placement and simplifying layout for AC-coupled or differential signals. Unlike unidirectional TVS diodes, the P6SMB43CAHM3_A/H requires no cathode band alignment - reducing assembly risk and enabling symmetric routing on high-speed lines such as CAN or RS-485. Its SMB footprint remains unchanged from unidirectional variants.
What is the maximum steady-state power dissipation of P6SMB43CAHM3_A/H?
P6SMB43CAHM3_A/H has a maximum steady-state power dissipation (PD) of 5.0 W at ambient temperature (TA) = 50 °C, derating linearly above that point. This rating assumes mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. At 25 °C ambient, the device can dissipate up to ~5.5 W continuously. The P6SMB43CAHM3_A/H is not intended for sustained DC power regulation but for transient energy absorption only.
Does P6SMB43CAHM3_A/H meet industry surge immunity standards?
Yes, P6SMB43CAHM3_A/H supports compliance with IEC 61000-4-5 (surge immunity) Level 4 (4 kV line-to-earth, 2 kV line-to-line) when used with appropriate system-level design - including proper PCB layout, grounding, and upstream filtering. Its 600 W peak pulse rating, 59.3 V clamping, and sub-nanosecond response time enable effective suppression of 10/1000 µs combination wave surges. The P6SMB43CAHM3_A/H is widely deployed in certified automotive and industrial equipment meeting these standards.
P6SMB43CAHM3_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:
- 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)
P6SMB43CAHM3_A/H FAQ
1.How can I place an order for P6SMB43CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB43CAHM3_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 P6SMB43CAHM3_A/H reliable?
The price and inventory of P6SMB43CAHM3_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 P6SMB43CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB43CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB43CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB43CAHM3_A/H?
P6SMB43CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB43CAHM3_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 P6SMB43CAHM3_A/H?
For technical support, including P6SMB43CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB43CAHM3_A/H requirements.
6.How does Aetrix verify that P6SMB43CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB43CAHM3_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 P6SMB43CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB43CAHM3_A/H?
All P6SMB43CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB43CAHM3_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 P6SMB43CAHM3_A/H part is unused and in its original packaging.
Return procedure for P6SMB43CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB43CAHM3_A/H Tags
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