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Vishay General Semiconductor - Diodes Division P6SMB30CA-M3/5B
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- Part No.:
- P6SMB30CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30CA-M3/5B.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,826
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Product details
Overview
P6SMB30CA-M3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or power lines. It features a 30 V standoff voltage (VWM), 33.3 V minimum breakdown voltage (VBR), 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 and automotive electronics.
For engineers reviewing the P6SMB30CA-M3/5B datasheet, P6SMB30CA-M3/5B pinout, P6SMB30CA-M3/5B application, or P6SMB30CA-M3/5B equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.24), halogen-free RoHS compliance (M3 suffix), and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping performance regardless of transient polarity. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns), while the SMB package supports thermal dissipation up to 5.0 W continuous power with RθJA = 100 °C/W.
The device meets J-STD-020 MSL Level 1 moisture sensitivity and withstands 100 A non-repetitive forward surge (IFSM) in unidirectional mode - though P6SMB30CA-M3/5B itself is bidirectional and lacks polarity marking. Its 0.097 %/°C temperature coefficient of VBR enables predictable voltage clamping across -65 °C to +150 °C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 30 V - Maximum continuous reverse voltage before conduction begins; defines safe operating window for protected circuitry. |
| VBR (Breakdown, min) | 33.3 V at 1.0 mA - Guaranteed minimum voltage at which device enters avalanche breakdown; ensures reliable triggering above system operating voltage. |
| VC (Clamping, max) | 41.4 V at 14.5 A - Maximum voltage seen by downstream components during 10/1000 μs transient; determines protection margin for 3.3 V or 5 V logic rails. |
| PPPM | 600 W - Peak pulse power handling capacity with standard 10/1000 μs waveform; validates robustness against IEC 61000-4-5 surge events. |
| IPPM | 14.5 A - Corresponding peak pulse current at VC; used to size PCB trace widths and verify layout survivability under surge conditions. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive or high-ambient industrial environments. |
| Package | SMB (DO-214AA) - Standard surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with JEDEC-standard reflow profiles and automated pick-and-place. |
Pinout & Package
SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, UL 94 V-0 rated, no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No functional distinction between terminals; either lead connects to protected line, other to ground or reference plane - enables single-component protection of AC-coupled or floating signals. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Validates immunity to severe lightning-induced surges per IEC 61000-4-5 Level 4 (4 kV) when properly mounted on 5.0 mm × 5.0 mm copper pads. |
| Clamping ratio VC/VBR ≈ 1.24 | Minimizes overvoltage stress on downstream ICs - e.g., keeps 3.3 V microcontroller I/O pins below 41.4 V during worst-case transients. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration requirements and EU Directive 2015/863 for restricted substances in industrial and automotive supply chains. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow without baking or special handling; reduces manufacturing cost and process complexity. |
| Low leakage (<1.0 μA at VWM) | Prevents signal distortion or battery drain in always-on sensor interfaces and low-power IoT nodes. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and chassis ground, responding within <1 ns to suppress spikes exceeding 30 V. Use Value: Maintains signal integrity during ISO 7637-2 Pulse 1/2a/5a events while avoiding false triggering during normal 12 V rail fluctuations. |
Use Scenario: Safeguarding 24 V digital input modules in programmable logic controllers against field-wiring faults and relay coil flyback. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor across input terminals, clamping transients before they reach optocoupler or Schmitt-trigger input stages. Use Value: Enables >100,000 actuation cycles without degradation, verified per IEC 61000-4-4 EFT testing at 2 kV/5 kHz. |
| Consumer Audio Interface Protection | Telecom Line Card Surge Suppression |
Use Scenario: Shielding line-level audio inputs (RCA, 3.5 mm jack) in AV receivers from ESD and cable-induced transients during hot-plug events. IC Role / Device Role / Timing Role: Low-capacitance (<100 pF at 0 V) bidirectional clamp placed directly at connector, minimizing stub length to preserve high-frequency signal fidelity. Use Value: Passes IEC 61000-4-2 Level 4 (±8 kV contact) without latch-up or parameter shift, preserving THD+N <0.005% at 1 kHz. |
Use Scenario: Front-end protection of xDSL or Ethernet PHY interfaces on telecom line cards exposed to induced surges from nearby power lines or lightning. IC Role / Device Role / Timing Role: First-stage protector before gas discharge tube (GDT) or secondary TVS, limiting let-through voltage to <41.4 V for downstream silicon-based receivers. Use Value: Coordinates with GDT to achieve full IEC 61000-4-5 10/700 μs surge immunity up to 6 kV without sacrificing bandwidth. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30CA-T3 | Same VWM (30 V), identical SMB package, but rated for 600 W with tighter VC tolerance (41.4 V max vs. 42.1 V max); slightly higher VBR min (33.3 V vs. 33.0 V). | Preferred where tighter clamping consistency is required across production lots; validated for AEC-Q101 Grade 0 in automotive variants. | Select SMBJ30CA-T3 if design requires documented automotive qualification or tighter parametric control - P6SMB30CA-M3/5B offers broader commercial availability and lower unit cost. |
| 1.5SMC33CA | Higher power rating (1500 W), larger SMC (DO-214AB) package (7.11 mm × 6.22 mm), same VWM/VBR range; 10× higher IPPM (32.4 A) and higher VC (53.3 V). | Suitable for primary-level surge protection in AC mains or PoE injectors where PCB space allows larger footprint and higher energy absorption is mandatory. | Choose 1.5SMC33CA only when surge threat level exceeds 600 W - P6SMB30CA-M3/5B remains optimal for board-level secondary protection where space and cost are constrained. |
Compared with SMBJ30CA-T3 and 1.5SMC33CA, P6SMB30CA-M3/5B delivers best-in-class cost-per-joule for mid-energy transient suppression in space-constrained consumer and industrial designs, balancing clamping performance, manufacturability, and halogen-free compliance without over-engineering.
Availability
P6SMB30CA-M3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer audio equipment, and telecom line card designs requiring stable component supply and long-term obsolescence management.
Supply support for P6SMB30CA-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, power efficiency, and application-specific performance.
The P6SMB Series targets cost-sensitive, high-volume transient protection needs in automotive, industrial, and consumer electronics - engineered for robust surge handling, automated assembly compatibility, and extended temperature operation without derating.
FAQ
What is the clamping voltage of P6SMB30CA-M3/5B at its rated peak pulse current?
The P6SMB30CA-M3/5B has a maximum clamping voltage (VC) of 41.4 V at 14.5 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured with the device mounted on 0.2" × 0.2" copper pads per JEDEC standards and defines the upper voltage limit imposed on protected circuits during surge events. The P6SMB30CA-M3/5B maintains this clamping performance bidirectionally.
Is P6SMB30CA-M3/5B suitable for automotive applications?
P6SMB30CA-M3/5B is halogen-free and RoHS-compliant but not AEC-Q101 qualified in this specific M3/5B configuration. For automotive use, Vishay offers AEC-Q101 variants such as P6SMB30CAHM3_B/I (with HM3 suffix and revision code B). The P6SMB30CA-M3/5B is appropriate for non-safety-critical automotive subsystems where qualification is not mandated, but full AEC-Q101 compliance requires selecting the designated automotive-grade ordering code.
How does the bidirectional nature of P6SMB30CA-M3/5B affect PCB layout?
The P6SMB30CA-M3/5B has no polarity marking and functions identically in both directions, simplifying PCB layout by eliminating orientation constraints during placement. Engineers can route either terminal to the protected line and the other to ground or reference plane - ideal for AC-coupled interfaces like RS-485, CAN, or audio lines. This symmetry avoids silkscreen errors and reduces assembly defects compared to unidirectional TVS diodes.
What is the thermal resistance of P6SMB30CA-M3/5B, and how does it impact power handling?
The P6SMB30CA-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on standard PCB pads. This limits its continuous power dissipation (PD) to 5.0 W at 50 °C ambient, meaning sustained overvoltage conditions must be brief or externally limited. For repetitive surge events, thermal mass of copper pours and airflow must be evaluated - the P6SMB30CA-M3/5B is optimized for transient, not steady-state, power handling.
Does P6SMB30CA-M3/5B meet moisture sensitivity level requirements for lead-free reflow?
Yes, the P6SMB30CA-M3/5B meets J-STD-020 Moisture Sensitivity Level (MSL) 1, with a maximum peak reflow temperature of 260 °C. This allows indefinite floor life and single-pass lead-free reflow without pre-baking, reducing manufacturing overhead and improving yield in high-volume SMT lines. The M3 suffix confirms halogen-free molding compound and matte tin plating compliant with J-STD-002 solderability standards.
P6SMB30CA-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:
- -
- Bidirectional Channels:
- 1
- 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)
P6SMB30CA-M3/5B FAQ
1.How can I place an order for P6SMB30CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30CA-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 P6SMB30CA-M3/5B reliable?
The price and inventory of P6SMB30CA-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 P6SMB30CA-M3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB30CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30CA-M3/5B?
P6SMB30CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30CA-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 P6SMB30CA-M3/5B?
For technical support, including P6SMB30CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30CA-M3/5B requirements.
6.How does Aetrix verify that P6SMB30CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB30CA-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 P6SMB30CA-M3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB30CA-M3/5B?
All P6SMB30CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30CA-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 P6SMB30CA-M3/5B part is unused and in its original packaging.
Return procedure for P6SMB30CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30CA-M3/5B Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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