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Vishay General Semiconductor - Diodes Division P6SMB30A-M3/5B
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- Part No.:
- P6SMB30A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30A-M3/5B.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,010
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Product details
Overview
P6SMB30A-M3/5B 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 1 mA), 25.6 V stand-off voltage (VWM), 41.4 V maximum clamping voltage (VC) at 14.5 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the P6SMB30A-M3/5B datasheet, P6SMB30A-M3/5B pinout, P6SMB30A-M3/5B application, or P6SMB30A-M3/5B equivalent, key selection criteria include unidirectional polarity, SMB package compatibility, 150 °C max junction temperature, low incremental surge resistance, and halogen-free RoHS-compliant construction per M3 suffix.
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by transient overvoltage events. Its glass-passivated junction ensures stable breakdown behavior, while the low Rsurge enables effective energy diversion during 10/1000 μs surges up to 600 W without thermal runaway.
The device exhibits a +0.097 %/°C temperature coefficient of VBR, enabling predictable voltage shift across operating temperature range (−65 °C to +150 °C). It meets J-STD-020 MSL Level 1 and is rated for 100 A non-repetitive forward surge current (IFSM) under 8.3 ms half-sine conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V at 1 mA test current - defines precise clamping onset threshold for overvoltage detection |
| VWM | 25.6 V - maximum continuous reverse working voltage before leakage exceeds 1 μA |
| VC @ IPPM | 41.4 V at 14.5 A - clamped voltage seen by protected circuit during full 600 W transient event |
| PPPM | 600 W - peak pulse power handling capability with 10/1000 μs waveform, 0.01% duty cycle |
| IPPM | 14.5 A - maximum non-repetitive peak pulse current supported under standard waveform |
| TJ max | +150 °C - maximum junction temperature enabling operation in high-ambient industrial environments |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 0.220" × 0.130" footprint and matte tin-plated leads |
Pinout & Package
SMB (DO-214AA) package: surface-mount, molded plastic case with cathode band marking; terminals are matte tin-plated for solderability per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to lower-potential side of protected line; enables conduction only when cathode is >25.6 V above anode |
| Cathode | Current exit terminal in forward bias; marked with band | Connected to higher-potential side (e.g., VCC rail); defines unidirectional clamping direction toward ground |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure in automotive and industrial power rails |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream components during clamping - critical for 3.3 V/5 V logic interface protection |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for consumer, telecom, and industrial end equipment without compromising reliability |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without pre-baking - supports high-yield automated assembly on production lines |
| 150 °C junction temperature rating | Supports operation in enclosed enclosures or near heat sources (e.g., motor drives, LED drivers) without derating |
Applications
| Industrial Power Supply Protection | Automotive Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V DC input stages of PLC modules against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND to clamp transients before they reach DC-DC converters and microcontrollers. Use Value: Limits voltage excursion to ≤41.4 V during 14.5 A surge, preventing latch-up or gate oxide damage in downstream 36 V-rated regulators. |
Use Scenario: Safeguarding CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine control units. IC Role / Device Role / Timing Role: Standoff-rated TVS on signal lines to absorb ESD (IEC 61000-4-2) and coupled noise from adjacent high-current circuits. Use Value: Clamps fast transients within nanoseconds while maintaining <1 μA leakage at 25.6 V - preserving signal integrity and ADC accuracy. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Secondary-side transient suppression on 48 V PoE-powered Ethernet switch line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device on DC feed lines upstream of hot-swap controllers and PMICs. Use Value: Withstands repetitive 600 W pulses at 0.01% duty cycle, enabling robust field deployment without thermal degradation. |
Use Scenario: Input rail protection in smart washing machine motor inverters subjected to back-EMF from brushed DC motors. IC Role / Device Role / Timing Role: Fast-response TVS across bulk capacitor inputs to suppress 100–200 V spikes generated during commutation. Use Value: Glass-passivated junction ensures stable VBR over 10,000+ surge cycles - critical for long-lifecycle white goods. |
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 SMB package, identical VWM (25.6 V) and VC (41.4 V), but rated for 400 W PPPM and not halogen-free (E3 suffix only) | Lacks M3 halogen-free compliance; suitable where RoHS exemption applies but not for EU-conforming consumer products | Select SMAJ30A only if cost sensitivity outweighs halogen-free requirement and 400 W rating suffices for system-level surge testing |
| 1.5SMC33A | Higher VBR (31.4–34.7 V), larger SMC (DO-214AB) package (0.280" × 0.175"), 1500 W PPPM, same M3 halogen-free option available | Requires PCB layout change due to larger footprint; clamps at higher voltage - may leave protected ICs exposed to 33 V+ transients | Choose 1.5SMC33A only when higher surge margin is mandatory and board space allows SMC package relocation |
Compared with SMAJ30A and 1.5SMC33A, P6SMB30A-M3/5B uniquely balances 600 W surge capacity, SMB footprint compatibility, and halogen-free compliance - making it optimal for space-constrained, environmentally regulated industrial and automotive designs requiring precise 30 V clamping.
Availability
P6SMB30A-M3/5B is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor interfaces, telecom line cards, and consumer appliance motor drives requiring stable component supply with halogen-free compliance and MSL Level 1 manufacturability.
Supply support for P6SMB30A-M3/5B 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, efficiency, and application-specific performance.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for consistent clamping behavior, low leakage, and robust surge endurance under real-world thermal and mechanical stress.
FAQ
What is the maximum clamping voltage of the P6SMB30A-M3/5B under standard test conditions?
The P6SMB30A-M3/5B has a maximum clamping voltage (VC) of 41.4 V when subjected to its rated peak pulse current of 14.5 A using the 10/1000 μs waveform. This value is measured at TA = 25 °C with specified mounting conditions (0.2" × 0.2" copper pads), and represents the highest voltage the protected circuit will experience during a full-power transient event. The P6SMB30A-M3/5B maintains this clamping performance across its operational temperature range.
Is the P6SMB30A-M3/5B suitable for automotive applications requiring AEC-Q101 qualification?
No, the P6SMB30A-M3/5B is not AEC-Q101 qualified. It carries the M3 suffix indicating halogen-free, RoHS-compliant commercial-grade construction. For automotive use, Vishay offers the P6SMB30AHM3_B variant (with "_B" revision code), which is explicitly AEC-Q101 qualified and shares identical electrical specs but undergoes additional stress testing per the automotive standard. The P6SMB30A-M3/5B remains appropriate for industrial and consumer applications where AEC-Q101 is not mandated.
How does the thermal resistance of the P6SMB30A-M3/5B affect its power dissipation capability?
The P6SMB30A-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W under standard PCB mounting (0.2" × 0.2" copper pads). At ambient temperatures above 25 °C, its 5.0 W steady-state power dissipation (PD) must be linearly derated - for example, at 75 °C ambient, usable PD drops to ~2.5 W. This thermal profile directly impacts sustained surge repetition rate and long-term reliability in enclosed or high-temperature environments. The P6SMB30A-M3/5B's RθJL of 20 °C/W also supports localized heat sinking via lead connections.
What is the significance of the "/5B" in the P6SMB30A-M3/5B part number?
The "/5B" suffix in P6SMB30A-M3/5B specifies the packaging configuration: it denotes a 13-inch diameter plastic tape-and-reel format containing 3200 units per reel. This differs from "/52", which indicates a 7-inch reel with 750 units. The "M3" prefix confirms halogen-free, RoHS-compliant construction, while "A" identifies the unidirectional variant. The P6SMB30A-M3/5B thus combines environmental compliance, polarity specificity, and high-volume SMT-ready packaging for automated manufacturing.
Does the P6SMB30A-M3/5B have bidirectional capability?
No, the P6SMB30A-M3/5B is strictly unidirectional. Its part number ends in "A", denoting unidirectional operation with cathode band marking. Bidirectional variants in the same series use the "CA" suffix (e.g., P6SMB30CA). The P6SMB30A-M3/5B conducts only when cathode voltage exceeds anode voltage by ≥25.6 V (VWM), and clamps transients on positive-going excursions relative to ground - making it ideal for VCC-to-ground protection, unlike bidirectional types used for differential or AC-coupled line protection.
P6SMB30A-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- 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 (SMBJ)
P6SMB30A-M3/5B FAQ
1.How can I place an order for P6SMB30A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30A-M3/5B 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-M3/5B reliable?
The price and inventory of P6SMB30A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB30A-M3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB30A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30A-M3/5B?
P6SMB30A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30A-M3/5B 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-M3/5B?
For technical support, including P6SMB30A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30A-M3/5B requirements.
6.How does Aetrix verify that P6SMB30A-M3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB30A-M3/5B 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-M3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB30A-M3/5B?
All P6SMB30A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30A-M3/5B, 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-M3/5B part is unused and in its original packaging.
Return procedure for P6SMB30A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30A-M3/5B Tags
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Diodes Incorporated
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