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Vishay General Semiconductor - Diodes Division P6SMB30AHE3/52
- Part No.:
- P6SMB30AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30AHE3/52.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB30AHE3/52 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 30 V standoff voltage (VWM), 31.5 V maximum breakdown voltage (VBR), 41.4 V clamping voltage at 14.5 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform - deployed in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the P6SMB30AHE3/52 datasheet, P6SMB30AHE3/52 pinout, P6SMB30AHE3/52 application, or P6SMB30AHE3/52 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance data, clamping performance under surge conditions, and real-world use context for ESD and lightning-induced transient suppression in harsh-environment electronics.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable reverse leakage (<1.0 μA at 25.6 V) and fast response to transients. Its low incremental surge resistance ensures minimal voltage overshoot during 10/1000 μs surges up to 14.5 A.
Designed for surface-mount assembly on 0.2" × 0.2" copper pads, it meets MSL Level 1 per J-STD-020 with 260 °C reflow peak, and is qualified to AEC-Q101 for automotive applications - confirmed by HE3 suffix and documented thermal resistance (RθJA = 100 °C/W, RθJL = 20 °C/W).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 25.6 V - maximum continuous reverse voltage before clamping begins; defines safe operating window for protected circuitry. |
| VBR (Breakdown Voltage) | 28.5–31.5 V at 1.0 mA test current - precise voltage threshold where avalanche conduction initiates reliably. |
| VC (Clamping Voltage) | 41.4 V at 14.5 A IPPM - peak voltage seen by downstream ICs during worst-case 10/1000 μs surge; critical for MOSFET/IC survival. |
| PPPM (Peak Pulse Power) | 600 W - energy-handling capacity under standardized 10/1000 μs waveform; enables robust protection against IEC 61000-4-5 surges. |
| ID (Reverse Leakage) | <1.0 μA at VWM - negligible standby current; avoids loading sensitive analog or low-power sensor circuits. |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive and industrial ambient environments. |
| RθJA | 100 °C/W - thermal resistance from junction to ambient; informs PCB copper pad sizing and airflow requirements for sustained power dissipation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix). Cathode identified by band marking; 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 when VLINE exceeds VBR. |
| Anode (unbanded end) | Reference node | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - required for engine control, ADAS sensor interfaces. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV) surges without degradation when mounted per recommended 5.0 mm × 5.0 mm copper pads. |
| Glass passivated junction | Ensures stable VBR tolerance (±5%), low leakage, and long-term stability under thermal stress and humidity exposure. |
| MSL Level 1 rating | Enables standard SMT reflow without moisture sensitivity concerns - no baking required prior to assembly. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage stress on protected devices; superior to many competing 30 V TVS diodes with VC > 44 V. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional clamping element placed between signal line and chassis ground, activated within <1 ns of overvoltage event. Use Value: Maintains signal integrity below 41.4 V during 14.5 A surges, preventing latch-up or damage to 3.3 V/5 V microcontrollers and transceivers. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Front-end transient suppressor on each isolated input channel, absorbing repetitive 10/1000 μs pulses with 0.01% duty cycle. Use Value: Enables >100,000 surge cycles without parameter shift due to stable glass-passivated junction and 150 °C TJ rating. |
| Telecom Power Rail Clamping | Consumer Appliance Motor Drive Protection |
Use Scenario: Clamping 48 V telecom power supply rails against lightning-induced surges entering via Ethernet or PoE interfaces. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side DC bus, coordinated with upstream MOVs and fuses. Use Value: Limits rail excursion to 41.4 V during 600 W transients, preserving DC-DC converter ICs and PMICs downstream. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Flyback diode alternative for transient suppression across motor terminals or H-bridge outputs. Use Value: Handles 100 A non-repetitive forward surge (IFSM), surviving repeated commutation events without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | Same VWM (25.6 V) and VC (41.4 V), but lower PPPM (400 W); SMA package (smaller footprint, higher RθJA = 150 °C/W). | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 without derating. | Select when board space is constrained and surge energy is ≤400 W; verify thermal margin with reduced copper area. |
| 1.5SMC30A | Same electrical specs but in larger SMC (DO-214AB) package; RθJA = 70 °C/W; higher IFSM (200 A). | Better thermal performance and surge endurance; requires larger PCB footprint and different tape/reel (7" reel not standard). | Choose for high-reliability industrial systems needing extended surge lifetime or elevated ambient temperatures (>85 °C). |
Compared with SMAJ30A and 1.5SMC30A, P6SMB30AHE3/52 delivers optimal balance of AEC-Q101 qualification, 600 W surge handling, SMB footprint compatibility, and MSL Level 1 process readiness - making it the preferred choice for automotive and space-constrained industrial designs requiring production-ready robustness.
Availability
P6SMB30AHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom power rails, and consumer appliance motor drives requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB30AHE3/52 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, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The P6SMB Series targets high-energy transient suppression in automotive, industrial, and telecom applications - engineered for AEC-Q101 compliance, low clamping ratios, and consistent performance across temperature and surge repetition rates.
FAQ
What is the clamping voltage of P6SMB30AHE3/52 at its rated peak pulse current?
The clamping voltage (VC) of P6SMB30AHE3/52 is 41.4 V at 14.5 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured and guaranteed per Vishay's datasheet revision 09-Jan-2024 (Document Number: 88370), and represents the maximum voltage imposed on protected circuitry during worst-case transient events - critical for ensuring compatibility with 3.3 V, 5 V, and 24 V logic and interface ICs.
Is P6SMB30AHE3/52 qualified for automotive applications?
Yes, P6SMB30AHE3/52 is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number and documentation in the Vishay P6SMB Series datasheet. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias (HTRB), and surge endurance - making it suitable for under-hood and cabin-mounted automotive electronics such as body control modules, sensor signal conditioning, and infotainment power supplies.
What is the standoff voltage (VWM) and why does it matter for P6SMB30AHE3/52?
The standoff voltage (VWM) of P6SMB30AHE3/52 is 25.6 V - the maximum continuous reverse voltage the device blocks without entering avalanche conduction. This parameter ensures the TVS remains inactive during normal operation while allowing sufficient margin above common 24 V nominal rails (e.g., 24 V ±10 % = 21.6–26.4 V), preventing false triggering and leakage-related power loss in always-on systems.
How does the SMB (DO-214AA) package of P6SMB30AHE3/52 compare to SMA or SMC alternatives?
The SMB package of P6SMB30AHE3/52 offers a 30 % smaller footprint than SMC and 25 % larger than SMA, striking a balance between board space efficiency and thermal performance (RθJA = 100 °C/W). Unlike SMAJ30A (SMA), it supports full 600 W PPPM without derating; unlike 1.5SMC30A (SMC), it fits standard 7" tape-and-reel automation equipment and maintains MSL Level 1 compatibility - key for high-volume SMT manufacturing of P6SMB30AHE3/52.
What is the maximum junction temperature and thermal resistance of P6SMB30AHE3/52?
P6SMB30AHE3/52 has a maximum junction temperature (TJ max) of +150 °C and typical thermal resistance values of RθJA = 100 °C/W (junction-to-ambient, on 0.2" × 0.2" copper pads) and RθJL = 20 °C/W (junction-to-lead). These values are essential for thermal design validation - for example, at 5.0 W steady-state dissipation, junction temperature rise above ambient would be 500 °C without heatsinking, confirming that P6SMB30AHE3/52 is intended for pulsed, not continuous, power dissipation.
P6SMB30AHE3/52 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 14.5A
- 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)
P6SMB30AHE3/52 FAQ
1.How can I place an order for P6SMB30AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30AHE3/52 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 P6SMB30AHE3/52 reliable?
The price and inventory of P6SMB30AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB30AHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB30AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30AHE3/52?
P6SMB30AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30AHE3/52 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 P6SMB30AHE3/52?
For technical support, including P6SMB30AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30AHE3/52 requirements.
6.How does Aetrix verify that P6SMB30AHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB30AHE3/52 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 P6SMB30AHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB30AHE3/52?
All P6SMB30AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30AHE3/52, 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 P6SMB30AHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB30AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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