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Vishay General Semiconductor - Diodes Division P6SMB39AHE3/52
- Part No.:
- P6SMB39AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB39AHE3/52.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,791
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Product details
Overview
P6SMB39AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 39 V breakdown voltage (VBR = 37.1–41.0 V at IT = 1.0 mA), 53.9 V maximum clamping voltage (VC) at 11.1 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform). It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in automotive and industrial power electronics.
For engineers reviewing the P6SMB39AHE3/52 datasheet, P6SMB39AHE3/52 pinout, P6SMB39AHE3/52 application, or P6SMB39AHE3/52 equivalent, this AEC-Q101 qualified TVS offers verified clamping performance, low incremental surge resistance, and RoHS-compliant matte tin-plated leads suitable for automated SMT assembly and high-reliability automotive subsystems.
Technical Context
This unidirectional TVS operates with a reverse stand-off voltage (VWM) of 33.3 V and exhibits ≤1.0 µA maximum reverse leakage at VWM. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns) to transient overvoltages.
Thermal design is supported by RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), enabling reliable operation up to TJ = +150 °C. The device meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101 for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 37.1 V / 41.0 V at 1.0 mA test current - defines precise voltage threshold where clamping initiates |
| VWM | 33.3 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 53.9 V at 11.1 A - clamped voltage seen by protected circuit during 10/1000 µs surge |
| PPPM | 600 W - peak transient power handling capability without failure (duty cycle ≤ 0.01 %) |
| IPPM | 11.1 A - maximum non-repetitive surge current the device safely clamps at rated VC |
| TJ max. | +150 °C - maximum junction temperature enabling use in under-hood automotive environments |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity indicated by cathode band on one end. Matte tin-plated leads meet J-STD-002 solderability and JESD 22-B102 whisker resistance Class 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected circuit; conducts during forward surge (e.g., reverse battery protection) |
| Cathode | Reverse-biased clamping terminal | Connected to higher-potential rail (e.g., VCC or signal line); blocks normal operation but avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance |
| Glass passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal stress |
| 600 W peak pulse power (10/1000 µs) | Provides robust protection against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 surges |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes let-through voltage to preserve margin between clamped level and IC absolute maximum ratings |
| MSL Level 1 (260 °C peak) | Enables standard reflow soldering without pre-baking or special handling |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in body control modules and lighting drivers from load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and ground to clamp transients above 33.3 V while remaining inert during normal operation. Use Value: Limits voltage excursion to ≤53.9 V during 11.1 A surges, safeguarding downstream PMICs and microcontrollers rated for 40 V absolute max. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation systems from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point to shunt fast transients before reaching ADC input stage. Use Value: Clamps sub-100 ns ESD pulses to safe levels with <1 ns response, preserving signal integrity and preventing latch-up in precision front-end amplifiers. |
| Consumer Power Adapter Input Stage | Telecom DC Power Interface |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters subjected to lightning-induced surges on output lines. IC Role / Device Role / Timing Role: Unidirectional TVS across regulated 5 V/12 V outputs to absorb repetitive switching noise and rare high-energy transients. Use Value: Withstands 600 W peak pulses at 0.01 % duty cycle, enabling compliance with UL 62368-1 transient immunity requirements without derating. |
Use Scenario: DC feed protection in PoE-powered network switches and base station RF modules exposed to induced surges on 48 V supply lines. IC Role / Device Role / Timing Role: Primary-line TVS on -48 V return path to prevent common-mode transients from disrupting Ethernet PHY timing or damaging isolation barriers. Use Value: Maintains ≤1.0 µA leakage at 33.3 V, avoiding DC bias shift in sensitive current-sense circuits while delivering 53.9 V clamping under 11.1 A surge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ39A-E3/52 | Same VBR range (37.1–41.0 V), but lower PPPM = 400 W and smaller SMA package (DO-214AC) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a (load dump) | Select when board space is constrained and surge energy does not exceed 400 W rating |
| 1.5SMC39A | Same electrical specs but larger SMC (DO-214AB) package; higher thermal mass and RθJA = 60 °C/W | Better sustained power dissipation but incompatible with SMB footprint; requires PCB redesign | Choose for legacy designs using SMC or where enhanced thermal performance justifies larger layout area |
Compared with SMAJ39A-E3/52 and 1.5SMC39A, P6SMB39AHE3/52 delivers optimal balance of AEC-Q101 qualification, 600 W surge capacity, and SMB footprint compatibility-making it the preferred choice for new automotive and industrial SMT designs requiring validated reliability and drop-in manufacturability.
Availability
P6SMB39AHE3/52 is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, consumer power adapter inputs, and telecom DC power interfaces requiring stable component supply, AEC-Q101 traceability, and consistent SMB packaging.
Supply support for P6SMB39AHE3/52 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 was engineered for high-energy transient suppression in automotive, industrial, and telecom systems-delivering AEC-Q101 qualified robustness, precise clamping, and standardized SMB packaging for automated manufacturing.
FAQ
What is the breakdown voltage tolerance of P6SMB39AHE3/52?
The P6SMB39AHE3/52 has a specified breakdown voltage (VBR) range of 37.1 V to 41.0 V at IT = 1.0 mA, representing a ±5.4 % tolerance about the nominal 39 V rating. This tight VBR window ensures predictable clamping onset and compatibility with 33 V system rails while maintaining sufficient margin above VWM = 33.3 V.
Is P6SMB39AHE3/52 suitable for automotive applications?
Yes, P6SMB39AHE3/52 is AEC-Q101 qualified and explicitly designated for automotive use via the "HE3" suffix. It meets rigorous stress tests including temperature cycling, high-temperature reverse bias, and surge endurance-making it appropriate for engine control units, body electronics, and ADAS power domains where reliability under thermal and electrical stress is critical.
What is the maximum clamping voltage of P6SMB39AHE3/52 under surge conditions?
The maximum clamping voltage (VC) of P6SMB39AHE3/52 is 53.9 V at IPPM = 11.1 A with a 10/1000 µs waveform. This value is guaranteed across temperature and represents the highest voltage imposed on the protected circuit during worst-case transient events, ensuring compatibility with 40 V-rated ICs and MOSFETs when properly decoupled.
Does P6SMB39AHE3/52 have lead-free and RoHS-compliant construction?
Yes, P6SMB39AHE3/52 carries the "HE3" suffix indicating RoHS-compliant, matte tin-plated leads that satisfy J-STD-002 solderability and JESD 22-B102 whisker resistance Class 2. It contains no lead, cadmium, mercury, hexavalent chromium, PBB, or PBDE, and conforms to EU Directive 2011/65/EU and China RoHS II.
How does the thermal resistance of P6SMB39AHE3/52 affect PCB layout?
P6SMB39AHE3/52 has RθJA = 100 °C/W (typ.) on 0.2" × 0.2" copper pads. To maintain TJ ≤ 150 °C at full 5.0 W steady-state dissipation, designers must provide adequate copper area and consider airflow. For pulsed operation, thermal mass dominates-so standard SMB pad layouts per Vishay's recommended 5.0 mm × 5.0 mm pads are sufficient for 600 W transient handling.
P6SMB39AHE3/52 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 11.1A
- 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)
P6SMB39AHE3/52 FAQ
1.How can I place an order for P6SMB39AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB39AHE3/52 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 P6SMB39AHE3/52 reliable?
The price and inventory of P6SMB39AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB39AHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB39AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB39AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB39AHE3/52?
P6SMB39AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB39AHE3/52 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 P6SMB39AHE3/52?
For technical support, including P6SMB39AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB39AHE3/52 requirements.
6.How does Aetrix verify that P6SMB39AHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB39AHE3/52 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 P6SMB39AHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB39AHE3/52?
All P6SMB39AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB39AHE3/52, 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 P6SMB39AHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB39AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB39AHE3/52 Tags
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