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Vishay General Semiconductor - Diodes Division P6SMB11A-M3/5B
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- Part No.:
- P6SMB11A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB11A-M3/5B.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,357
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Product details
Overview
P6SMB11A-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 9.4 V stand-off voltage (VWM), 10.5–11.6 V breakdown voltage (VBR) at 1 mA test current, 15.6 V maximum clamping voltage (VC) at 38.5 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 P6SMB11A-M3/5B datasheet, P6SMB11A-M3/5B pinout, P6SMB11A-M3/5B application, or P6SMB11A-M3/5B equivalent, key selection criteria include unidirectional polarity, 150 °C max junction temperature, halogen-free RoHS-compliant construction (M3 suffix), low incremental surge resistance, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), while the SMB package provides mechanical robustness and thermal dissipation via lead-frame conduction.
The device complies with JEDEC J-STD-020 MSL Level 1 (260 °C peak reflow), supports repetitive 0.01% duty cycle pulses, and exhibits a +0.075 %/°C temperature coefficient of VBR. It is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine) and derates linearly above 25 °C ambient per Fig. 2 in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 9.4 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe operating margin below clamping threshold |
| VBR (Breakdown) | 10.5–11.6 V at 1 mA - Guaranteed avalanche onset range; determines precise trigger point for transient suppression |
| VC (Clamping) | 15.6 V at 38.5 A - Maximum voltage seen by protected circuit during 10/1000 µs surge; critical for downstream component voltage tolerance |
| PPPM | 600 W - Peak pulse power handling capability under standardized 10/1000 µs waveform; defines transient energy absorption capacity |
| IPPM | 38.5 A - Corresponding peak pulse current at VC; used to size PCB trace width and verify system-level surge compliance |
| TJ max | 150 °C - Maximum allowable junction temperature; sets thermal design limits for sustained power dissipation and ambient derating |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs heatsinking requirements for repeated surges |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant (M3 suffix), matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band; polarity is unidirectional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side (e.g., GND or return path); defines directionality of clamping action |
| Cathode | Avalanche conduction terminal / Clamping output | Connected to protected line (e.g., VIN, signal rail); conducts surge current to anode when VREV > VBR |
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) without degradation over rated duty cycle |
| Glass passivated chip junction | Ensures stable leakage current (<5 µA at VWM) and long-term reliability under thermal cycling and humidity stress |
| MSL Level 1 moisture sensitivity | Allows direct placement into reflow ovens up to 260 °C peak without pre-baking, reducing manufacturing complexity |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD, inductive switch-off), improving protection margin |
| AEC-Q101 qualification option (_B suffix) | Validated for automotive under-hood applications requiring extended temperature and lifetime reliability (not applicable to -M3/5B) |
Applications
| Industrial Power Input Protection | Automotive Sensor Signal Line Protection |
|---|---|
|
Use Scenario: 24 V DC industrial PLC input module exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and ground to clamp transients before they reach input conditioning circuitry. Use Value: Limits voltage to ≤15.6 V during 38.5 A surges, preventing damage to op-amps and microcontroller GPIOs rated for 16 V absolute maximum. |
Use Scenario: CAN or LIN bus interface in automotive body control module subject to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Standoff-clamp TVS on signal line to suppress coupled transients while maintaining signal integrity below 9.4 V. Use Value: Fast <1 ns response and low VC ensure data lines remain within receiver common-mode range during 10/1000 µs spikes. |
| Consumer Equipment AC/DC Adapter Output | Telecom PoE Interface Protection |
|
Use Scenario: Secondary-side 12 V output of wall adapter subjected to capacitor discharge events and ESD coupling. IC Role / Device Role / Timing Role: Clamp diode across output rail to absorb energy from capacitive transients before reaching downstream regulators. Use Value: 600 W rating handles multiple 10/1000 µs surges without parametric shift; 150 °C TJ max supports operation in enclosed enclosures. |
Use Scenario: 48 V Power over Ethernet (PoE) data line interface where surge immunity must meet IEEE 802.3bt requirements. IC Role / Device Role / Timing Role: Primary-stage TVS on each pair to limit common-mode surge voltage before magnetics and PHY ICs. Use Value: Low VWM (9.4 V) allows use on low-voltage signaling pairs; SMB footprint enables dense layout near RJ45 connector. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A (ON Semiconductor) | Same SMB package, identical VWM (9.4 V), VBR (10.5–11.6 V), and VC (15.6 V); slightly higher RθJA (110 °C/W) | Qualified to AEC-Q101 as standard; broader automotive qualification history | Select SMBJ11A when automotive-grade qualification is mandatory and M3 halogen-free requirement is secondary |
| 1.5SMC11A (Littelfuse) | Same electrical specs but in larger SMC (DO-214AB) package; 1.5 kW peak power rating; higher IPPM (52.6 A) | Higher surge margin for infrequent high-energy events; less suitable for space-constrained layouts | Choose 1.5SMC11A only if board area permits larger footprint and system requires >600 W single-pulse headroom |
Compared with SMBJ11A and 1.5SMC11A, P6SMB11A-M3/5B offers halogen-free construction and optimized thermal resistance for high-density industrial SMT designs, while maintaining identical clamping performance - making it ideal where RoHS compliance and compact layout are prioritized over automotive qualification or ultra-high pulse power.
Availability
P6SMB11A-M3/5B is available at Aetrix Electronics and suitable for industrial power input protection, automotive sensor interface hardening, and telecom PoE interface protection requiring stable component supply, halogen-free compliance, and consistent SMB footprint sourcing.
Supply support for P6SMB11A-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, precision, and application-specific optimization.
The P6SMB Series targets cost-effective, high-volume transient protection for consumer, industrial, and telecom systems - engineered for automated assembly, thermal stability, and repeatable clamping performance across wide temperature ranges.
FAQ
What is the maximum clamping voltage of the P6SMB11A-M3/5B under a 10/1000 µs surge?
The P6SMB11A-M3/5B has a maximum clamping voltage (VC) of 15.6 V when subjected to its rated peak pulse current of 38.5 A using the standardized 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88370 and defines the upper voltage limit imposed on protected circuits during transient events. The P6SMB11A-M3/5B maintains this clamping performance across its full operating temperature range when mounted on 0.2" × 0.2" copper pads.
Does the P6SMB11A-M3/5B meet automotive qualification standards?
No, the P6SMB11A-M3/5B is not AEC-Q101 qualified. It carries the M3 suffix indicating halogen-free, RoHS-compliant commercial-grade construction. For automotive applications, Vishay offers the P6SMB11AHM3_B variant (with _B suffix), which is AEC-Q101 qualified and shares identical electrical characteristics but undergoes additional stress testing per automotive reliability standards. The P6SMB11A-M3/5B remains suitable for industrial and consumer use cases where AEC-Q101 is not mandated.
What does the "/5B" in P6SMB11A-M3/5B indicate?
The "/5B" suffix in P6SMB11A-M3/5B specifies the packaging configuration: 13-inch diameter plastic tape and reel containing 3200 units. This differs from "/52", which denotes a 7-inch reel with 750 units. Both share the same M3 halogen-free, RoHS-compliant die and SMB package. The P6SMB11A-M3/5B is optimized for high-volume SMT production lines requiring extended reel lengths to minimize changeover frequency.
How does the thermal resistance of the P6SMB11A-M3/5B affect its surge handling capability?
The P6SMB11A-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" copper pads. This value directly impacts its ability to sustain repetitive surges: at ambient temperatures above 25 °C, its peak pulse power must be derated per Figure 2 in the datasheet to prevent junction temperature exceeding 150 °C. The P6SMB11A-M3/5B's RθJA enables reliable operation in enclosed industrial enclosures up to 85 °C ambient when surge duty cycle remains ≤0.01%.
Can the P6SMB11A-M3/5B be used in bidirectional configurations?
No, the P6SMB11A-M3/5B is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires the CA-suffixed variant (e.g., P6SMB11CA). Using the P6SMB11A-M3/5B in reverse-biased AC signal paths would result in forward conduction and potential failure. For differential or AC-coupled lines, always select the explicitly designated bidirectional part - the P6SMB11A-M3/5B functions only as a single-quadrant clamp from cathode to anode.
P6SMB11A-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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 38.5A
- 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)
P6SMB11A-M3/5B FAQ
1.How can I place an order for P6SMB11A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB11A-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 P6SMB11A-M3/5B reliable?
The price and inventory of P6SMB11A-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 P6SMB11A-M3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB11A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB11A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB11A-M3/5B?
P6SMB11A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB11A-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 P6SMB11A-M3/5B?
For technical support, including P6SMB11A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB11A-M3/5B requirements.
6.How does Aetrix verify that P6SMB11A-M3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB11A-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 P6SMB11A-M3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB11A-M3/5B?
All P6SMB11A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB11A-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 P6SMB11A-M3/5B part is unused and in its original packaging.
Return procedure for P6SMB11A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB11A-M3/5B Tags
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