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Vishay General Semiconductor - Diodes Division P6SMB15A-E3/5B
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- Part No.:
- P6SMB15A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB15A-E3/5B.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,200
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Product details
Overview
P6SMB15A-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 12.8 V stand-off voltage (VWM), 14.3–15.8 V breakdown voltage (VBR) at 1 mA, 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-E3/5B datasheet, P6SMB15A-E3/5B pinout, P6SMB15A-E3/5B application, or P6SMB15A-E3/5B equivalent, key selection criteria include unidirectional polarity, 150 °C max junction temperature, RoHS-compliant matte tin plating, MSL Level 1 moisture sensitivity, and suitability for automotive-grade transient protection where AEC-Q101 qualification is required (note: this variant is commercial grade, not AEC-Q101).
Technical Context
The P6SMB15A-E3/5B operates as a unidirectional clamping device with cathode-band polarity marking. Its silicon junction is glass passivated for reliability, and it delivers fast response time to ESD and surge events while maintaining low incremental surge resistance. The device is rated for repetitive 0.01% duty cycle pulses and derates linearly above 25 °C ambient per Fig. 2 of the datasheet.
Thermal performance is defined by RθJA = 100 °C/W (junction-to-ambient, on minimum pad layout) and RθJL = 20 °C/W (junction-to-lead). It supports soldering per J-STD-002 and JESD 22-B102, with whisker resistance compliant to JESD 201 Class 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 12.8 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for normal circuit operation. |
| VBR (Breakdown) | 14.3–15.8 V at 1 mA - Confirmed breakdown threshold range; ensures reliable triggering during overvoltage events. |
| VC (Clamping) | 21.2 V at 28.3 A - Maximum voltage seen across load during 10/1000 μs surge; defines worst-case protected node voltage. |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; determines survivability against IEC 61000-4-5 surges. |
| IPPM | 28.3 A - Peak pulse current corresponding to VC; used to size series impedance and verify system-level surge margin. |
| TJ max | 150 °C - Maximum junction temperature; constrains thermal design and long-term reliability under repeated transients. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.220" × 0.130" footprint; compatible with automated placement and reflow. |
Pinout & Package
Package: SMB (DO-214AA), molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads; cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (unidirectional) | Connected to lower-potential side of protected line; conducts during forward surge or DC bias conditions. |
| Cathode | Clamping terminal (marked with band) | Connected to higher-potential side; avalanche conduction initiates here during reverse overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 (4 kV) surges without degradation under specified duty cycle. |
| Glass passivated junction | Improves long-term stability and reduces parameter drift under thermal cycling and humidity stress. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking; simplifies SMT manufacturing flow. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving clamping precision for sensitive ICs. |
| RoHS-compliant, matte tin plating | Ensures solderability per J-STD-002 and eliminates lead-based contamination risks in end-product compliance. |
Applications
| Automotive Power Line Protection | Industrial Sensor Signal Conditioning |
|---|---|
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 rail and ground to clamp positive-going spikes above 12.8 V. Use Value: Limits transient voltage to ≤21.2 V during 28.3 A surges, preventing damage to downstream PMICs and microcontrollers. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on signal line referenced to local ground. Use Value: Fast response and low VC preserve signal integrity while absorbing ±8 kV HBM ESD per IEC 61000-4-2. |
| Consumer USB Power Input Stage | Telecom DSL Line Interface |
Use Scenario: Safeguarding USB-C power delivery circuits against hot-plug induced voltage overshoot. IC Role / Device Role / Timing Role: Standoff-rated TVS on VBUS line to suppress 15 V+ transients before they reach buck converter input. Use Value: 12.8 V VWM allows uninterrupted 5–20 V PD operation while clamping surges to 21.2 V. | Use Scenario: Front-end protection for ADSL/VDSL line drivers exposed to lightning-induced surges on twisted-pair lines. IC Role / Device Role / Timing Role: Primary unidirectional surge limiter on line-side interface before transformer coupling. Use Value: 600 W rating handles telecom-grade surges; SMB package enables compact layout near connector. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient 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 high-energy surges; suitable only where IEC 61000-4-5 Level 3 (2 kV) suffices. | Select SMAJ15A only if cost sensitivity outweighs surge margin requirements and layout space permits no change. |
| 1.5SMC15A | Higher PPPM = 1500 W, larger SMC (DO-214AB) package (0.275" × 0.165"), same VWM/VBR specs. | Requires PCB redesign due to larger footprint and thermal pad area; better for sustained surge duty cycles. | Choose 1.5SMC15A when system-level testing demands >600 W headroom and board space allows SMC footprint. |
Compared with SMAJ15A and 1.5SMC15A, the P6SMB15A-E3/5B delivers optimal balance of 600 W surge capability, SMB footprint compatibility, and commercial-grade manufacturability-making it ideal for cost-sensitive, space-constrained designs requiring verified IEC 61000-4-5 Level 4 immunity without AEC-Q101 overhead.
Availability
P6SMB15A-E3/5B is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, consumer USB power systems, and telecom line protection requiring stable component supply and consistent RoHS-compliant sourcing.
Supply support for P6SMB15A-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series is engineered for high-reliability transient suppression in demanding environments, targeting automotive, industrial, and communications systems where robustness against inductive switching and lightning-induced surges is critical.
FAQ
What is the maximum clamping voltage of the P6SMB15A-E3/5B under a 10/1000 μs surge?
The P6SMB15A-E3/5B has a maximum clamping voltage (VC) of 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 and Table on page 2 of Vishay document 88370 and defines the upper voltage limit imposed on protected circuitry during surge events.
Is the P6SMB15A-E3/5B AEC-Q101 qualified?
No, the P6SMB15A-E3/5B is a commercial-grade variant with RoHS-compliant matte tin plating. AEC-Q101 qualification is available only in variants with HE3 or HM3 suffixes (e.g., P6SMB15AHE3_B), which include additional automotive stress testing and traceability. The P6SMB15A-E3/5B meets all electrical and mechanical specs but lacks automotive qualification documentation.
What does the "E3/5B" suffix indicate in P6SMB15A-E3/5B?
The "E3" denotes RoHS-compliant, commercial-grade construction with matte tin plating; "5B" specifies packaging in 13-inch diameter plastic tape and reel containing 3200 units. This differs from "52", which indicates 7-inch reel with 750 units. Both share identical electrical characteristics and SMB (DO-214AA) package dimensions.
Can the P6SMB15A-E3/5B be used in bidirectional applications?
No, the P6SMB15A-E3/5B is strictly unidirectional, as confirmed by its part number ending in "A" (not "CA") and cathode-band marking. Bidirectional operation requires the CA-suffixed variant (e.g., P6SMB15CA), which has symmetrical breakdown in both polarities and no polarity marking.
What is the thermal resistance junction-to-ambient for the P6SMB15A-E3/5B?
The typical thermal resistance junction-to-ambient (RθJA) for the P6SMB15A-E3/5B is 100 °C/W when mounted on the minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in Vishay document 88370, page 3. This value assumes still air and defines temperature rise under steady-state power dissipation.
P6SMB15A-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):
- 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-E3/5B FAQ
1.How can I place an order for P6SMB15A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB15A-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 P6SMB15A-E3/5B reliable?
The price and inventory of P6SMB15A-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 P6SMB15A-E3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB15A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB15A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB15A-E3/5B?
P6SMB15A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB15A-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 P6SMB15A-E3/5B?
For technical support, including P6SMB15A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB15A-E3/5B requirements.
6.How does Aetrix verify that P6SMB15A-E3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB15A-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 P6SMB15A-E3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB15A-E3/5B?
All P6SMB15A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB15A-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 P6SMB15A-E3/5B part is unused and in its original packaging.
Return procedure for P6SMB15A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB15A-E3/5B Tags
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