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Vishay General Semiconductor - Diodes Division P6SMB15A-M3/52
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- Part No.:
- P6SMB15A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB15A-M3/52.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,521
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Product details
Overview
P6SMB15A-M3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 12.8 V stand-off voltage (VWM), 14.3–15.8 V breakdown voltage (VBR) at 1 mA test current, 21.2 V maximum clamping voltage (VC) at 28.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform.
For engineers reviewing the P6SMB15A-M3/52 datasheet, P6SMB15A-M3/52 pinout, P6SMB15A-M3/52 application, or P6SMB15A-M3/52 equivalent, this device serves as a robust, halogen-free, RoHS-compliant transient protection solution for DC power rails, I/O lines, and sensor interfaces in industrial, automotive, and telecom systems where fast response time (<1 ns), low incremental surge resistance, and AEC-Q101 qualification readiness are critical.
Technical Context
The P6SMB15A-M3/52 operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve stable reverse-biased clamping behavior. Its 10/1000 µs waveform compliance and 0.01% duty cycle rating enable repetitive surge handling without thermal runaway under defined PCB pad conditions (0.2" × 0.2" copper).
With a maximum junction temperature of +150 °C, thermal resistance of 100 °C/W (junction-to-ambient), and MSL Level 1 moisture sensitivity, it supports high-reliability reflow soldering up to 260 °C peak. The cathode band marking enables unambiguous polarity identification during automated placement on high-density PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 12.8 V - Maximum continuous reverse operating voltage before clamping begins; sets safe DC rail margin for 15 V nominal systems. |
| VBR (Breakdown) | 14.3–15.8 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering above system operating voltage. |
| VC (Clamping) | 21.2 V at 28.3 A - Peak voltage seen by protected circuit during 10/1000 µs surge; defines worst-case stress on downstream ICs. |
| PPPM | 600 W - Sustained transient energy absorption capability per single pulse; validated per Fig. 1 derating curve. |
| IPPM | 28.3 A - Peak surge current supported at rated clamping voltage; determines minimum trace width and fuse coordination. |
| TJ max | +150 °C - Maximum allowable junction temperature; enables operation in under-hood or enclosed industrial enclosures. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height; compatible with J-STD-020 reflow profiles. |
Pinout & Package
SMB (DO-214AA) package with matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102. Cathode identified by molded band; anode is unmarked end. Meets UL 94 V-0 flammability rating.
| 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 (unmarked end) | Reference node | Typically tied to system ground or low-impedance return path; completes clamping loop during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12–15 V DC rails without derating. |
| 21.2 V clamping at 28.3 A | Limits voltage overshoot below 22 V during 10/1000 µs transients, safeguarding 24 V tolerant logic and analog front-ends. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free assembly without preconditioning or baking; eliminates moisture-related popcorning risk. |
| Halogen-free, RoHS-compliant (M3 suffix) | Fulfills IPC-1752A environmental compliance requirements for industrial and automotive supply chains. |
| Low incremental surge resistance | Minimizes VC rise under high di/dt conditions, improving clamping precision for fast-rising ESD and inductive spikes. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp positive-going surges above 15 V. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers during ISO 7637-2 Pulse 5a events. |
Use Scenario: Shielding 4–20 mA current loop inputs and analog sensor outputs from field-induced surges. IC Role / Device Role / Timing Role: Standoff-clamp element on signal line, referenced to local ground plane. Use Value: Maintains signal integrity below 21.2 V during 1 kV EFT bursts, preserving ADC accuracy and isolation barrier margins. |
| Telecom DC Power Input | Consumer Device USB Port Protection |
Use Scenario: Safeguarding PoE-powered switches and base station RF modules from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Primary clamping device on 48 V DC input rail, upstream of DC/DC converters. Use Value: Absorbs 600 W pulses without degradation, enabling compliance with ITU-T K.20/21 immunity standards. |
Use Scenario: Adding secondary-level surge protection on VBUS lines of USB-C ports in portable monitors and docking stations. IC Role / Device Role / Timing Role: Fast-response shunt protector between VBUS and chassis ground. Use Value: Clamps 10/1000 µs surges to ≤21.2 V within <1 ns, preventing overvoltage damage to USB PD controllers and Type-C CC logic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | Same VWM (12.8 V), identical SMB package, but lower PPPM (400 W) and higher VC (24.4 V at 24.4 A). | Less robust for repeated 600 W surges; suitable only for lower-energy environments like consumer USB or low-power sensors. | Select SMAJ15A only if cost sensitivity outweighs surge margin requirements and layout allows tighter thermal management. |
| SMCJ15A | Same VWM/VBR specs but larger SMC (DO-214AB) package; rated for 1500 W PPPM and 100 A IPPM. | Over-specified for 600 W needs; requires larger PCB area and may not fit space-constrained automotive modules. | Choose SMCJ15A only when future-proofing for higher surge classes (e.g., ISO 16750-2) or when existing SMC footprints are standardized. |
Compared with SMAJ15A and SMCJ15A, P6SMB15A-M3/52 delivers optimal balance of 600 W surge capacity, SMB footprint compatibility, and halogen-free compliance-making it the preferred choice for volume production in automotive body control modules and industrial PLC I/O cards where space, reliability, and regulatory alignment are jointly constrained.
Availability
P6SMB15A-M3/52 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and telecom DC power input applications requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification readiness.
Supply support for P6SMB15A-M3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific performance.
The P6SMB Series targets board-level transient protection across automotive, industrial, and telecom markets, engineered for high surge immunity, automated assembly compatibility, and long-term stability under thermal cycling and humidity stress.
FAQ
What is the maximum clamping voltage of P6SMB15A-M3/52 under a 10/1000 µs surge?
The maximum clamping voltage (VC) of P6SMB15A-M3/52 is 21.2 V when subjected to its rated peak pulse current of 28.3 A with a 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. P6SMB15A-M3/52 maintains this clamping performance across its specified operating temperature range and is validated for repetitive surges at 0.01% duty cycle.
Is P6SMB15A-M3/52 qualified to AEC-Q101?
P6SMB15A-M3/52 is not AEC-Q101 qualified by default; it carries the M3 suffix indicating halogen-free, RoHS-compliant commercial grade construction. AEC-Q101 qualified versions use the HM3 suffix (e.g., P6SMB15AHM3_B/H). P6SMB15A-M3/52 may be used in automotive applications where qualification is not mandated, but design validation per vehicle-specific stress tests remains the customer's responsibility. P6SMB15A-M3/52 data sheet explicitly states AEC-Q101 availability only for HE3/HM3 variants.
What does the "/52" suffix indicate in P6SMB15A-M3/52?
The "/52" suffix in P6SMB15A-M3/52 denotes the packaging configuration: 7-inch diameter plastic tape and reel containing 750 units. This format is optimized for high-speed pick-and-place assembly equipment and aligns with industry-standard EIA-481 specifications. P6SMB15A-M3/52 is supplied in this reel format with proper moisture barrier bagging per MSL Level 1 requirements, ensuring solderability without pre-baking.
Can P6SMB15A-M3/52 be used in bidirectional protection circuits?
No, P6SMB15A-M3/52 is a unidirectional TVS diode, as indicated by the "A" suffix (not "CA"). It conducts only in reverse bias and must be oriented with the cathode band toward the protected line. For bidirectional protection, Vishay specifies part numbers ending in "CA", such as P6SMB15CA. Using P6SMB15A-M3/52 in a bidirectional configuration would leave the forward direction unprotected and risk catastrophic failure during negative transients.
What is the thermal resistance junction-to-ambient for P6SMB15A-M3/52?
The typical thermal resistance junction-to-ambient (RθJA) for P6SMB15A-M3/52 is 100 °C/W, measured under standard conditions with 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal on FR-4 PCB. This value assumes no additional heatsinking and defines the steady-state temperature rise per watt of dissipated power. P6SMB15A-M3/52 relies on short-duration pulse operation rather than continuous power handling, so RθJA primarily informs layout decisions for thermal relief and pad sizing in high-reliability applications.
P6SMB15A-M3/52 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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 28.3A
- 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)
P6SMB15A-M3/52 FAQ
1.How can I place an order for P6SMB15A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB15A-M3/52 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 P6SMB15A-M3/52 reliable?
The price and inventory of P6SMB15A-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB15A-M3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB15A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB15A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB15A-M3/52?
P6SMB15A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB15A-M3/52 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 P6SMB15A-M3/52?
For technical support, including P6SMB15A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB15A-M3/52 requirements.
6.How does Aetrix verify that P6SMB15A-M3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB15A-M3/52 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 P6SMB15A-M3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB15A-M3/52?
All P6SMB15A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB15A-M3/52, 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 P6SMB15A-M3/52 part is unused and in its original packaging.
Return procedure for P6SMB15A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB15A-M3/52 Tags
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