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Vishay General Semiconductor - Diodes Division P6SMB33AHE3_A/I
- Part No.:
- P6SMB33AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB33AHE3_A/I.pdf
- Description:
- TVS DIODE 28.2VWM 45.7VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,284
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Product details
Overview
P6SMB33AHE3_A/I 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 33 V breakdown voltage (VBR = 31.4–34.7 V at IT = 1.0 mA), 28.2 V stand-off voltage (VWM), and clamps to ≤45.7 V at 13.1 A peak pulse current (10/1000 μs), delivering 600 W peak pulse power for surge protection in automotive and industrial electronics.
For engineers reviewing the P6SMB33AHE3_A/I datasheet, P6SMB33AHE3_A/I pinout, P6SMB33AHE3_A/I application, or P6SMB33AHE3_A/I equivalent, this AEC-Q101 qualified device supports robust ESD and lightning surge immunity in DC power rails, sensor interfaces, and MOSFET gate protection - with verified thermal resistance (RθJA = 100 °C/W), low leakage (<1.0 μA at VWM), and MSL Level 1 reflow compatibility.
Technical Context
This unidirectional TVS operates as a clamping device that remains high-impedance below VWM = 28.2 V and rapidly avalanches above VBR to limit transient overvoltage. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling fast response time (<1.0 ns) and repeatable clamping performance under repetitive 10/1000 μs surges at 0.01% duty cycle.
The P6SMB33AHE3_A/I is rated for TJ = –65 °C to +150 °C operation, with 100 A non-repetitive forward surge capability (8.3 ms half-sine) and thermal resistance of RθJL = 20 °C/W to lead. Its matte tin-plated SMB terminals comply with J-STD-002 and JESD 22-B102 solderability standards and meet JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 31.4 V / 34.7 V at IT = 1.0 mA - defines precise avalanche onset range for reliable clamping threshold |
| VWM | 28.2 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | ≤45.7 V at 13.1 A (10/1000 μs) - actual clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 600 W - peak transient power handling capacity under standardized surge waveform |
| IFSM | 100 A - single half-sine surge current rating (8.3 ms), critical for inductive load switching events |
| TJ max. | +150 °C - enables use in under-hood automotive and high-temperature industrial environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); mounting pad layout per Vishay spec: 5.59 mm × 2.159 mm (length × width).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference | Provides return path during transient clamping; must be routed with low-inductance ground plane |
| Cathode | Current exit terminal in forward bias; marked with band; connects to protected line | Receives surge energy from line; polarity-critical for unidirectional operation - reversal causes failure |
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 |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without popcorn effect or delamination - no floor life limitation |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 (4 kV) surges on 50 Ω source impedance with margin |
| Low ID ≤ 1.0 μA at VWM | Minimizes standby power loss and avoids false triggering in battery-powered sensor nodes |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V CAN/LIN bus power inputs against load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between VBAT and GND upstream of DC-DC converter input. Use Value: Limits voltage to ≤45.7 V during 13.1 A surge, preventing damage to downstream regulators and microcontrollers. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA transmitter) from ESD and field wiring faults. IC Role / Device Role / Timing Role: Line-to-ground TVS on current-loop output, with cathode tied to signal line and anode to chassis ground. Use Value: Sub-1 ns response clamps fast ESD events before op-amp input stages saturate or latch up. |
| MOSFET Gate Protection | Consumer DC Adapter Input Stage |
|
Use Scenario: Shielding high-side N-channel MOSFET gates from Miller-induced voltage spikes during switching. IC Role / Device Role / Timing Role: TVS placed between gate and source, with cathode at gate and anode at source (ground-referenced). Use Value: Clamps gate-source voltage to safe level (<45.7 V), preventing oxide breakdown while adding negligible capacitance. |
Use Scenario: Secondary-side overvoltage suppression in 12 V wall adapters exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS across output capacitor, cathode to +VOUT, anode to GND. Use Value: Absorbs 600 W surge energy without degradation, maintaining output regulation during transient events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A-E3/5T | Same VBR range (31.4–34.7 V), but lower PPPM = 400 W; SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy surges; unsuitable for IEC 61000-4-5 Level 4 compliance | Select when board space is constrained and surge threat level is ≤Level 3 (2 kV) |
| 1.5SMC33A | Same electrical specs, but SMC (DO-214AB) package - larger body (7.11 mm × 6.22 mm), lower RθJA = 60 °C/W | Better thermal performance for high-duty-cycle or high-ambient environments | Choose for industrial motor drives where sustained surge repetition occurs |
Compared with SMAJ33A-E3/5T and 1.5SMC33A, the P6SMB33AHE3_A/I delivers optimal balance of AEC-Q101 qualification, 600 W surge capacity, and SMB footprint - making it preferred for space-constrained automotive modules requiring validated reliability and full Level 4 surge immunity.
Availability
P6SMB33AHE3_A/I is available at Aetrix Electronics and suitable for automotive infotainment power supplies, industrial PLC analog I/O modules, and consumer appliance motor control circuits requiring stable component supply with AEC-Q101 traceability and RoHS compliance.
Supply support for P6SMB33AHE3_A/I 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 targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for consistent clamping performance, AEC-Q101 compliance, and compatibility with automated SMT assembly.
FAQ
What is the exact breakdown voltage range for P6SMB33AHE3_A/I?
The P6SMB33AHE3_A/I has a guaranteed breakdown voltage range of 31.4 V to 34.7 V at test current IT = 1.0 mA, per Vishay Document 88370. This tight VBR window ensures predictable clamping behavior across production lots and temperature extremes, directly supporting design margin calculations for protected circuits.
Is P6SMB33AHE3_A/I suitable for bidirectional transient protection?
No, P6SMB33AHE3_A/I is a unidirectional TVS diode - its cathode band marking indicates polarity-sensitive operation. For bidirectional protection, Vishay offers the P6SMB33CA variant. Using P6SMB33AHE3_A/I in reverse-biased configurations risks permanent failure due to forward conduction during negative transients.
Does P6SMB33AHE3_A/I require derating at elevated ambient temperatures?
Yes, P6SMB33AHE3_A/I must be derated per Figure 2 in Vishay Document 88370: peak pulse power drops linearly above TA = 25 °C, reaching ~50% of 600 W at 100 °C ambient. Designers must verify clamping voltage and energy absorption remain within safe limits using the published derating curve for the intended operating environment.
What does the "HE3_A/I" suffix indicate in P6SMB33AHE3_A/I?
The "HE3" denotes RoHS-compliant and AEC-Q101 qualified construction; "A" specifies unidirectional configuration; "I" indicates packaging in 13-inch tape-and-reel (3200 units/reel). This full suffix confirms automotive-grade reliability, regulatory compliance, and logistics readiness - critical for Tier 1 automotive procurement.
Can P6SMB33AHE3_A/I be used in place of P6SMB33AHE3_B/I?
No - P6SMB33AHE3_A/I and P6SMB33AHE3_B/I differ in AEC-Q101 qualification level: "A" denotes standard AEC-Q101 testing, while "B" indicates enhanced stress screening per Vishay's internal automotive release protocol. Interchange requires validation of application-specific reliability requirements, as "B" grade includes additional HTGB and uHAST testing.
P6SMB33AHE3_A/I 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):
- 28.2V
- Voltage - Breakdown (Min):
- 31.4V
- Voltage - Clamping (Max) @ Ipp:
- 45.7V
- Current - Peak Pulse (10/1000µs):
- 13.1A
- 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)
P6SMB33AHE3_A/I FAQ
1.How can I place an order for P6SMB33AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB33AHE3_A/I 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 P6SMB33AHE3_A/I reliable?
The price and inventory of P6SMB33AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB33AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB33AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB33AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB33AHE3_A/I?
P6SMB33AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB33AHE3_A/I 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 P6SMB33AHE3_A/I?
For technical support, including P6SMB33AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB33AHE3_A/I requirements.
6.How does Aetrix verify that P6SMB33AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB33AHE3_A/I 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 P6SMB33AHE3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB33AHE3_A/I?
All P6SMB33AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB33AHE3_A/I, 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 P6SMB33AHE3_A/I part is unused and in its original packaging.
Return procedure for P6SMB33AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB33AHE3_A/I Tags
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