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Vishay General Semiconductor - Diodes Division P6SMB39AHE3/5B
- Part No.:
- P6SMB39AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB39AHE3/5B.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,512
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Product details
Overview
P6SMB39AHE3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 33.3 V stand-off voltage (VWM), 37.1–41.0 V breakdown voltage (VBR) at 1 mA test current, and clamps to ≤53.9 V at 11.1 A peak pulse current under 10/1000 µs waveform - ideal for protecting MOSFETs and ICs in industrial power supplies.
For engineers reviewing the P6SMB39AHE3/5B datasheet, P6SMB39AHE3/5B pinout, P6SMB39AHE3/5B application, or P6SMB39AHE3/5B equivalent, key selection criteria include its AEC-Q101 qualification, 600 W peak pulse power rating, low incremental surge resistance, and RoHS-compliant matte tin-plated terminals suitable for automated SMT assembly.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging a glass-passivated silicon junction for stable avalanche behavior and fast response (<1 ns). Its thermal resistance (RθJA = 100 °C/W) and junction temperature limit of 150 °C support reliable operation in compact PCB layouts with minimal copper pad area (0.2" × 0.2").
The device meets J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance requirements, and its 10/1000 µs waveform rating is validated per REA-defined transient standards. The HE3 suffix confirms AEC-Q101 qualification and RoHS compliance - critical for automotive body electronics and industrial control modules requiring long-term reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 33.3 V - maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown) | 37.1–41.0 V at 1 mA - guaranteed avalanche initiation range; ensures predictable turn-on during transients |
| VC (Clamping) | ≤53.9 V at 11.1 A (10/1000 µs) - peak voltage seen by protected circuit; determines minimum required IC withstand rating |
| PPPM | 600 W - peak transient energy absorption capability; supports repetitive surges up to 0.01% duty cycle |
| IPPM | 11.1 A - maximum non-repetitive surge current; sets minimum trace width and fuse coordination limits |
| TJ max. | 150 °C - maximum junction temperature; enables operation in high-ambient environments like engine bays or enclosed power enclosures |
| RθJA | 100 °C/W - thermal resistance to ambient; informs derating curves when mounted on standard 5 mm × 5 mm copper pads |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground during overvoltage events |
| Anode (unbanded end) | Reference node | Typically tied to system ground or low-impedance return path; completes clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - suitable for body control modules and ADAS power rails |
| Glass passivated junction | Stable, low-leakage avalanche performance across -65 °C to +150 °C; eliminates parameter drift in harsh thermal environments |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without degradation when properly mounted |
| MSL Level 1 | Reflow-compatible without dry-pack or baking; supports standard lead-free reflow profiles up to 260 °C peak |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., inductive switch-off in solenoid drivers) |
Applications
| Automotive Body Electronics | Industrial Power Supply Inputs |
|---|---|
Use Scenario: Protecting LIN bus transceivers and door module microcontrollers from load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between LIN line and chassis ground. Use Value: Limits transient voltage to ≤53.9 V, ensuring survival of 40 V-rated transceivers during 12 V system surges. |
Use Scenario: Safeguarding AC-DC converter primary-side controllers against switching-induced spikes. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor input to clamp MOSFET drain spikes. Use Value: Absorbs 600 W pulses without failure, preventing false triggering or latch-up in PWM controllers. |
| Telecom Signal Line Protection | Consumer Appliance Motor Drivers |
Use Scenario: Shielding RS-485 transceivers in base station backhaul interfaces from ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional-capable variant not applicable; this unidirectional part used on DC-biased data lines with defined polarity. Use Value: Sub-1 ns response time prevents data corruption during 8 kV contact ESD events per IEC 61000-4-2. |
Use Scenario: Suppressing flyback voltage from brushed DC motors in washing machine control boards. IC Role / Device Role / Timing Role: Mounted across motor terminals to clamp inductive kickback during PWM commutation. Use Value: Withstands 100 A IFSM single-half-sine surges, enabling robust protection without sacrificial fusing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-E3/5B | Same SMB package, but lower 33 V VWM and 53.3 V clamping at 11.3 A; 400 W PPPM | Lower clamping voltage suits 3.3 V or 5 V logic rails; insufficient for 24 V industrial systems requiring ≥33.3 V standoff | Select when tighter clamping margin is needed on low-voltage rails and 600 W headroom is unnecessary |
| 1.5SMC39A | Higher-power SMC package (same VWM/VBR); 1500 W PPPM, larger footprint (7.11 mm × 6.22 mm) | Required where higher surge repetition rate or longer pulse duration (e.g., IEC 61000-4-5 ring wave) exceeds SMB thermal limits | Choose for mission-critical 24 V systems needing extended surge endurance beyond 600 W single-pulse rating |
Compared with SMAJ33A-E3/5B, P6SMB39AHE3/5B provides higher standoff and clamping headroom for 24 V systems; versus 1.5SMC39A, it offers identical electrical specs in a 30% smaller footprint - optimizing board space where 600 W pulse rating suffices.
Availability
P6SMB39AHE3/5B is available at Aetrix Electronics and suitable for automotive body electronics, industrial power supply inputs, telecom signal line protection, and consumer appliance motor drivers requiring stable component supply and AEC-Q101 assurance.
Supply support for P6SMB39AHE3/5B 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 automotive qualification.
The P6SMB Series targets cost-sensitive yet high-reliability transient suppression needs in automotive, industrial, and telecom infrastructure - delivering AEC-Q101-qualified TVS diodes in compact SMB packages with consistent 600 W pulse capability.
FAQ
What is the clamping voltage of P6SMB39AHE3/5B at its rated peak pulse current?
The P6SMB39AHE3/5B clamps to a maximum of 53.9 V at 11.1 A peak pulse current under the standardized 10/1000 µs waveform. This value is measured per REA-defined test conditions and represents the highest voltage the protected circuit will experience during a worst-case transient event. The clamping performance is guaranteed across the full operating temperature range and forms the basis for selecting downstream IC voltage ratings.
Is P6SMB39AHE3/5B suitable for automotive applications?
Yes, P6SMB39AHE3/5B is AEC-Q101 qualified, as confirmed by the "HE3" suffix and Vishay documentation. It undergoes stress testing for temperature cycling, high-temperature operating life, and mechanical shock - making it appropriate for non-safety-critical automotive systems such as body control modules, lighting drivers, and infotainment power rails. It is not intended for airbag or braking systems without additional system-level validation.
What does the "5B" in P6SMB39AHE3/5B indicate?
The "5B" denotes the packaging configuration: 13-inch diameter plastic tape and reel containing 3200 units. This format is optimized for high-volume SMT placement using standard pick-and-place equipment. The "HE3" portion confirms RoHS compliance and AEC-Q101 qualification, while "P6SMB39A" specifies the 39 V nominal breakdown family and unidirectional polarity.
How does P6SMB39AHE3/5B differ from bidirectional variants like P6SMB39CA?
P6SMB39AHE3/5B is unidirectional, with cathode marked by a band and intended for DC-biased lines where polarity is fixed. In contrast, P6SMB39CA is bidirectional - no polarity marking, symmetric clamping in both directions - used on AC-coupled or differential signal lines like RS-485. Their VWM, VBR, and VC values differ: P6SMB39CA has 33.3 V VWM and 57.5 V VC, reflecting dual-junction architecture.
What is the maximum operating temperature for P6SMB39AHE3/5B?
The P6SMB39AHE3/5B has a maximum junction temperature (TJ) of +150 °C and an operating storage range of -65 °C to +150 °C. Derating begins above 25 °C ambient per Figure 2 in the datasheet, with power dissipation reduced linearly to zero at 150 °C. This allows use in engine compartments, industrial enclosures, and other thermally demanding environments when mounted per recommended 5 mm × 5 mm copper pad layout.
P6SMB39AHE3/5B 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)
P6SMB39AHE3/5B FAQ
1.How can I place an order for P6SMB39AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB39AHE3/5B 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 P6SMB39AHE3/5B reliable?
The price and inventory of P6SMB39AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB39AHE3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB39AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB39AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB39AHE3/5B?
P6SMB39AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB39AHE3/5B 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 P6SMB39AHE3/5B?
For technical support, including P6SMB39AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB39AHE3/5B requirements.
6.How does Aetrix verify that P6SMB39AHE3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB39AHE3/5B 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 P6SMB39AHE3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB39AHE3/5B?
All P6SMB39AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB39AHE3/5B, 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 P6SMB39AHE3/5B part is unused and in its original packaging.
Return procedure for P6SMB39AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB39AHE3/5B Tags
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