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Vishay General Semiconductor - Diodes Division P6SMB30A-E3/5B
- Part No.:
- P6SMB30A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30A-E3/5B.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,999
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Product details
Overview
P6SMB30A-E3/5B 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 breakdown voltage (VBR = 28.5–31.5 V at IT = 1.0 mA), 25.6 V stand-off voltage (VWM), 41.4 V maximum clamping voltage (VC) at 14.5 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the P6SMB30A-E3/5B datasheet, P6SMB30A-E3/5B pinout, P6SMB30A-E3/5B application, or P6SMB30A-E3/5B equivalent, key selection criteria include unidirectional polarity, SMB package thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification status (not applicable to -E3/5B suffix), RoHS compliance, and clamping performance under repetitive surge conditions.
Technical Context
This TVS diode operates as a voltage-clamping protection device that conducts above its breakdown threshold to divert transient energy away from downstream circuitry. Its glass-passivated junction ensures stable reverse leakage (<1.0 μA at VWM) and fast response time (<1 ns), while the low incremental surge resistance enables effective suppression of inductive switching spikes and ESD events.
The P6SMB30A-E3/5B is rated for 150 °C maximum junction temperature and derates linearly above 25 °C ambient per Figure 2. It is mounted on 0.2" × 0.2" copper pads per JEDEC standard layout, delivering 600 W peak pulse power only when thermally optimized - not sustained at elevated ambient temperatures without derating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V at 1.0 mA test current - defines precise clamping onset threshold for overvoltage detection |
| VWM | 25.6 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 41.4 V at 14.5 A - clamped voltage seen by protected circuit during worst-case 10/1000 μs transient |
| PPPM | 600 W - peak transient power handling capability under standardized 10/1000 μs waveform |
| IPPM | 14.5 A - maximum non-repetitive surge current the device can safely shunt |
| RθJA | 100 °C/W - thermal resistance from junction to ambient, critical for PCB pad design and power derating |
| TJ max | +150 °C - absolute maximum junction temperature limiting high-temperature operation and reliability |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant, MSL Level 1 (260 °C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts when voltage exceeds VBR, shunting surge to ground |
| Anode | Reference/return path | Typically tied to system ground or lower-potential rail; completes conduction path during clamping |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 24 V systems |
| Glass passivated chip junction | Ensures stable VBR tolerance (±5 %) and low leakage (<1.0 μA) across temperature and lifetime |
| SMB (DO-214AA) package | Supports automated SMT placement and provides 100 °C/W thermal resistance with standard 5 mm × 5 mm copper pads |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving margin for 3.3 V/5 V logic-level ICs |
| Meets J-STD-020 MSL Level 1 | Allows unlimited floor life and single-reflow compatibility up to 260 °C peak without baking |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate drivers and microcontroller I/O lines against inductive kickback from relay and solenoid switching. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp positive-going transients before they reach sensitive logic. Use Value: Limits voltage excursion to ≤41.4 V during 14.5 A surges, preventing latch-up or oxide damage in 3.3 V/5 V MCUs and gate drivers. |
Use Scenario: Surge suppression on LIN bus lines and sensor supply rails exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 25.6 V) placed across 24 V supply inputs to absorb ISO 7637-2 Pulse 1/2a/5a energy. Use Value: Clamps 24 V rail to 41.4 V during 10/1000 μs transients, maintaining safe operating margin for automotive-grade CAN/LIN transceivers. |
| Consumer Power Adapters | Telecom DC Power Feeds |
|
Use Scenario: Input-stage protection for AC/DC adapters subjected to lightning-induced surges on primary-side rectifier outputs. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-ground, cathode-to-rail, absorbing positive transients on 24–48 V secondary outputs. Use Value: Withstands 600 W pulses without degradation, enabling compliance with UL 62368-1 transient immunity requirements. |
Use Scenario: Protection of PoE-powered equipment front-ends against induced surges on 48 V DC distribution lines. IC Role / Device Role / Timing Role: Primary-line TVS on 48 V input rail, coordinated with upstream fusing to limit let-through energy to downstream DC/DC converters. Use Value: Delivers 41.4 V clamping at 14.5 A, ensuring downstream 5 V/12 V regulators remain within absolute maximum ratings during surge 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 |
|---|---|---|---|
| SMAJ30A | Same VBR range (28.5–31.5 V), identical SMB package, but lower PPPM = 400 W and higher VC = 48.4 V at 12.3 A | Less robust clamping margin; suitable only for lower-energy transients (e.g., IEC 61000-4-2 ESD, not full IEC 61000-4-5) | Select SMAJ30A only if system-level testing confirms 48.4 V clamping is acceptable and 400 W rating suffices. |
| 1.5SMC33A | Higher VBR (31.4–34.7 V), same PPPM = 600 W, larger SMC (DO-214AB) package (3.9 mm × 2.5 mm vs. SMB's 3.9 mm × 2.2 mm) | Requires PCB layout change; offers better thermal dissipation (RθJA ≈ 60 °C/W) but less space-efficient | Choose 1.5SMC33A only when board space allows larger footprint and improved thermal performance is prioritized over miniaturization. |
Compared with SMAJ30A and 1.5SMC33A, the P6SMB30A-E3/5B delivers optimal balance of 600 W surge capacity, compact SMB footprint, and tight 41.4 V clamping - making it preferred for space-constrained 24 V industrial and telecom power rails where precise voltage limiting is critical.
Availability
P6SMB30A-E3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and telecom DC power feeds requiring stable component supply with RoHS-compliant, commercial-grade TVS protection.
Supply support for P6SMB30A-E3/5B 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, TVS devices, and optoelectronics with emphasis on reliability, precision, and automotive-grade qualification.
The P6SMB Series is engineered for high-energy transient suppression in harsh environments, targeting industrial automation, automotive subsystems, and infrastructure power systems where robustness and repeatable clamping performance are essential.
FAQ
What is the breakdown voltage tolerance of the P6SMB30A-E3/5B?
The P6SMB30A-E3/5B has a specified breakdown voltage range of 28.5 V to 31.5 V at 1.0 mA test current, representing a ±5 % tolerance around the nominal 30 V rating. This tight tolerance ensures predictable clamping behavior across production lots and temperature ranges, directly supporting reliable overvoltage protection design for 24 V systems where the P6SMB30A-E3/5B is commonly deployed.
Is the P6SMB30A-E3/5B AEC-Q101 qualified?
No, the P6SMB30A-E3/5B is not AEC-Q101 qualified. The -E3 suffix indicates RoHS-compliant, commercial-grade construction. AEC-Q101 qualification requires the -HE3 or -HM3 suffix with revision code (e.g., P6SMB30AHE3_B), which includes additional stress testing and traceability. For automotive applications requiring qualification, engineers must select the appropriate HE3/HM3 variant rather than the P6SMB30A-E3/5B.
What is the maximum clamping voltage of the P6SMB30A-E3/5B under surge conditions?
The P6SMB30A-E3/5B exhibits a maximum clamping voltage (VC) of 41.4 V at its rated peak pulse current of 14.5 A, measured using the standardized 10/1000 μs waveform. This value defines the highest voltage imposed on protected circuitry during worst-case transient events and is critical for verifying safe operating margins relative to downstream IC absolute maximum ratings - a key parameter confirmed in the P6SMB30A-E3/5B datasheet Table on page 2.
Can the P6SMB30A-E3/5B be used in bidirectional configurations?
No, the P6SMB30A-E3/5B is a unidirectional TVS diode, identified by its cathode band marking. Bidirectional operation requires the CA-suffixed variant (e.g., P6SMB30CA). Using the P6SMB30A-E3/5B in reverse-biased configurations risks permanent failure due to lack of reverse breakdown specification - the P6SMB30A-E3/5B is explicitly rated only for forward conduction during clamping, with reverse leakage defined solely at VWM.
What is the thermal resistance of the P6SMB30A-E3/5B, and how does it affect layout?
The P6SMB30A-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per JEDEC standard. This value mandates adequate copper area and thermal vias in PCB layout to prevent junction overheating during repetitive surges; insufficient copper increases RθJA, reducing safe power dissipation and risking thermal runaway - a critical consideration in high-duty-cycle applications of the P6SMB30A-E3/5B.
P6SMB30A-E3/5B 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:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB30A-E3/5B FAQ
1.How can I place an order for P6SMB30A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30A-E3/5B 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 P6SMB30A-E3/5B reliable?
The price and inventory of P6SMB30A-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB30A-E3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB30A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30A-E3/5B?
P6SMB30A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30A-E3/5B 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 P6SMB30A-E3/5B?
For technical support, including P6SMB30A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30A-E3/5B requirements.
6.How does Aetrix verify that P6SMB30A-E3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB30A-E3/5B 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 P6SMB30A-E3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB30A-E3/5B?
All P6SMB30A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30A-E3/5B, 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 P6SMB30A-E3/5B part is unused and in its original packaging.
Return procedure for P6SMB30A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30A-E3/5B Tags
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