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Vishay General Semiconductor - Diodes Division P6SMB43AHE3_A/H
- Part No.:
- P6SMB43AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB43AHE3_A/H.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB43AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal 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 rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB43AHE3_A/H datasheet, P6SMB43AHE3_A/H pinout, P6SMB43AHE3_A/H application, or P6SMB43AHE3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, clamping performance under repetitive surge conditions, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device in series with sensitive downstream circuitry, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable leakage behavior and fast response (<1 ns), while low incremental surge resistance enables effective energy diversion during transient events such as inductive load switching or ESD.
The P6SMB43AHE3_A/H is rated for 150 °C maximum junction temperature and meets J-STD-020 MSL Level 1 (peak reflow ≤ 260 °C). Its RoHS-compliant matte tin-plated leads are solderable per J-STD-002 and JESD 22-B102, and it passes JESD 201 Class 2 whisker testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 40.9–45.2 V at 1.0 mA test current - defines precise conduction onset for overvoltage protection |
| Stand-off Voltage VWM | 36.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| Clamping Voltage VC | 59.3 V at 10.1 A IPPM - peak voltage seen by protected circuit during 10/1000 µs surge |
| Peak Pulse Power PPPM | 600 W - maximum transient energy absorption capability under standard 10/1000 µs waveform |
| Junction Temperature Range | −65 °C to +150 °C - supports operation in under-hood automotive and industrial environments |
| Thermal Resistance RθJA | 100 °C/W - determines self-heating rise above ambient under DC power dissipation |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads; cathode indicated by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line; establishes polarity-dependent clamping direction |
| Cathode | Forward current exit / Surge current sink | Banded end; connected to higher-potential side or ground return path to shunt transients safely |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against ISO 7637-2 Load Dump and IEC 61000-4-5 surge events |
| Glass passivated chip junction | Ensures stable VBR tolerance and low leakage (<1 µA at VWM) across temperature and lifetime |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units and ADAS power rails |
| MSL Level 1 moisture sensitivity | Allows direct placement without baking; compatible with standard lead-free reflow profiles up to 260 °C |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ESD > 15 kV contact) |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump transients up to 35 V sustained and 60 V spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges before they reach LDOs or microcontrollers. Use Value: Limits voltage to ≤59.3 V during 10/1000 µs 10.1 A surge, preventing latch-up or gate oxide damage in downstream ICs. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted at connector interface to divert sub-100 ns ESD pulses away from precision ADC inputs. Use Value: Clamps transients within <1 ns while adding <0.5 pF parasitic capacitance - preserving signal integrity up to 10 MHz bandwidth. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
|
Use Scenario: Safeguarding PoE-powered network switches against induced lightning surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary-level TVS on DC input stage, coordinated with upstream fuses and secondary-stage polymer PTCs. Use Value: Absorbs 600 W surge energy without degradation, maintaining VWM = 36.8 V to avoid false triggering during normal 48 V ±10% operation. |
Use Scenario: Adding secondary-level surge immunity to USB-C power delivery circuits in laptops and docking stations. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line to suppress conducted transients from chargers or hot-plug events. Use Value: Withstands 100 A IFSM (8.3 ms half-sine), enabling survival of repeated 10/1000 µs surges without parameter shift or failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A-E3/5T | Same VBR range (40.9–45.2 V), but SMA package (DO-214AC); RθJA = 130 °C/W vs. 100 °C/W | Larger footprint; less efficient thermal dissipation in high-density layouts | Select if existing PCB uses SMA pad layout or requires higher IFSM margin (120 A vs. 100 A) |
| 1.5SMC43A | Same electrical specs, but SMC (DO-214AB) package; 1.5 kW rating but derated to 600 W at TA > 25 °C | Higher profile; requires more board area and different stencil design | Choose when legacy SMC footprint is fixed and higher surge repetition rate is needed |
Compared with SMAJ43A-E3/5T and 1.5SMC43A, the P6SMB43AHE3_A/H offers superior thermal performance in compact space-constrained designs, AEC-Q101 qualification out-of-box, and optimized pad layout for high-volume SMT assembly - making it preferred for new automotive and industrial designs where reliability and manufacturability are critical.
Availability
P6SMB43AHE3_A/H is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply, AEC-Q101 compliance, and consistent clamping performance across production lots.
Supply support for P6SMB43AHE3_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, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The P6SMB Series was developed for high-reliability transient suppression in automotive, industrial, and telecom infrastructure - balancing compact SMB packaging, 600 W surge capability, and AEC-Q101 qualification for mission-critical power domains.
FAQ
What is the clamping voltage of P6SMB43AHE3_A/H at its rated peak pulse current?
The P6SMB43AHE3_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 with the device mounted on 0.2" × 0.2" copper pads per JEDEC standards and represents the highest voltage imposed on protected circuitry during worst-case surge conditions. The P6SMB43AHE3_A/H maintains this clamping performance across its full operating temperature range.
Is P6SMB43AHE3_A/H qualified for automotive applications?
Yes, the P6SMB43AHE3_A/H is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its ordering code and documentation in Vishay's P6SMB datasheet (Rev. 09-Jan-2024, Doc. #88370). It undergoes stress testing including temperature cycling, high-temperature reverse bias, and ESD per AEC-Q101 requirements - making it suitable for use in engine control modules, body electronics, and ADAS power supplies where automotive-grade reliability is mandatory. The P6SMB43AHE3_A/H is not just compliant but fully certified.
What does the "_A/H" suffix mean in P6SMB43AHE3_A/H?
The "_A" in P6SMB43AHE3_A/H denotes the unidirectional configuration (as opposed to "C" for bidirectional), while "/H" specifies the packaging format: 7-inch plastic tape and reel with 750 units per reel. The "HE3" portion confirms RoHS-compliance and AEC-Q101 qualification. This full suffix distinguishes P6SMB43AHE3_A/H from commercial-grade variants (e.g., P6SMB43AE3) and ensures traceability to automotive-grade manufacturing and testing protocols. The P6SMB43AHE3_A/H ordering code is unique to this qualified, packaged variant.
How does the thermal resistance of P6SMB43AHE3_A/H affect its power handling?
The P6SMB43AHE3_A/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, meaning each watt of steady-state power dissipation raises the junction temperature by 100 °C above ambient. While its 600 W peak pulse rating applies only for short durations (≤50 ms), this RθJA value governs safe DC power limits - e.g., at 25 °C ambient, continuous dissipation must stay below 1.25 W to keep TJ ≤ 150 °C. Layout with 0.2" × 0.2" copper pads is required to achieve the specified RθJA; reduced copper area increases thermal resistance and derates usable surge capacity. The P6SMB43AHE3_A/H thermal performance is validated under these exact conditions.
Can P6SMB43AHE3_A/H replace older P6SMB43A parts in existing designs?
Yes, the P6SMB43AHE3_A/H is a direct functional and mechanical replacement for legacy P6SMB43A variants, retaining identical electrical specifications (VBR, VWM, VC, PPPM), SMB (DO-214AA) package dimensions, and pinout. The "HE3" suffix adds AEC-Q101 qualification and RoHS compliance without altering performance - so no PCB or schematic changes are needed. However, users should verify that their application benefits from the enhanced reliability and automotive qualification of the P6SMB43AHE3_A/H, especially in safety-critical or high-temperature environments where the base P6SMB43A may not be certified.
P6SMB43AHE3_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:
- 1
- Bidirectional Channels:
- -
- 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)
P6SMB43AHE3_A/H FAQ
1.How can I place an order for P6SMB43AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB43AHE3_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 P6SMB43AHE3_A/H reliable?
The price and inventory of P6SMB43AHE3_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 P6SMB43AHE3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB43AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB43AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB43AHE3_A/H?
P6SMB43AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB43AHE3_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 P6SMB43AHE3_A/H?
For technical support, including P6SMB43AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB43AHE3_A/H requirements.
6.How does Aetrix verify that P6SMB43AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB43AHE3_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 P6SMB43AHE3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB43AHE3_A/H?
All P6SMB43AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB43AHE3_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 P6SMB43AHE3_A/H part is unused and in its original packaging.
Return procedure for P6SMB43AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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