Vishay General Semiconductor - Diodes Division P6SMB16A-E3/5B
- Part No.:
- P6SMB16A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB16A-E3/5B.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO214AA
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
P6SMB16A-E3/5B 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 13.6 V stand-off voltage (VWM), 15.2–16.8 V breakdown voltage (VBR) at 1 mA test current, 22.5 V maximum clamping voltage (VC) at 26.7 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the P6SMB16A-E3/5B datasheet, P6SMB16A-E3/5B pinout, P6SMB16A-E3/5B application, or P6SMB16A-E3/5B equivalent, this device is selected for robust overvoltage protection in automotive sensor interfaces, industrial I/O lines, and DC power rail conditioning where fast response (<1 ns), low clamping ratio (VC/VBR ≈ 1.49), and AEC-Q101-qualified reliability are required.
Technical Context
The P6SMB16A-E3/5B operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its specified breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1.0 μA at VWM), while the SMB package supports automated placement and meets UL 94 V-0 flammability rating.
Thermal performance is defined by RθJA = 100 °C/W (junction-to-ambient) and RθJL = 20 °C/W (junction-to-lead), enabling reliable operation up to TJ = +150 °C. The device is RoHS-compliant (E3 suffix) and rated for 0.01% duty cycle repetitive surge events under JEDEC-standard 10/1000 μs waveform conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 13.6 V - Maximum continuous reverse voltage before significant leakage; sets safe operating margin below breakdown. |
| VBR (Breakdown) | 15.2–16.8 V at 1 mA - Tight 5% tolerance ensures predictable turn-on across production lots. |
| VC (Clamping) | 22.5 V at 26.7 A - Limits transient voltage seen by downstream ICs during 600 W surge events. |
| IPPM | 26.7 A - Peak surge current capability with 10/1000 μs waveform; defines protection level for common ESD/lightning threats. |
| PPPM | 600 W - Sustains high-energy transients without failure; validated per IEC 61000-4-5 Level 4 requirements. |
| TJ max. | +150 °C - Enables use in under-hood automotive environments and thermally constrained PCB layouts. |
| Leakage (ID) | <1.0 μA at VWM - Minimizes standby power loss and avoids false triggering in low-current sensor circuits. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, MSL Level 1 (260 °C reflow peak), UL 94 V-0 molding compound. Cathode indicated by band on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or lower-potential node in unidirectional TVS configuration. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., CAN_H, RS-485 A, 12 V rail); conducts avalanche current during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Withstands IEC 61000-4-5 surge events up to 4 kV (line-to-earth) without degradation. |
| Fast response time (<1 ns) | Clamps transients before they reach vulnerable IC inputs, preserving signal integrity in high-speed interfaces. |
| Glass passivated junction | Ensures long-term stability of VBR and low parameter drift over temperature and lifetime. |
| Low incremental surge resistance | Minimizes VC overshoot during high-di/dt events, improving protection margin for 3.3 V/5 V logic. |
| AEC-Q101 qualified option (_B suffix) | P6SMB16A-E3/5B is RoHS-compliant commercial grade; AEC-Q101 version available as P6SMB16AHE3_B/5B for automotive use. |
Applications
| Automotive Sensor Protection | Industrial I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional clamping device placed between sensor output and microcontroller ADC input or LIN driver. Use Value: Limits transient voltage to ≤22.5 V, preventing latch-up or gate oxide damage in 5 V-tolerant automotive MCUs. |
Use Scenario: Safeguarding PLC digital input modules against field-wiring induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Standoff protector on 24 V DC input lines, absorbing energy before it reaches optocoupler or Schmitt trigger input stage. Use Value: Maintains <1.0 μA leakage at 13.6 V, avoiding false triggering in high-impedance sensing circuits. |
| DC Power Rail Conditioning | RS-485/RS-422 Interface Protection |
Use Scenario: Secondary overvoltage clamp on 12 V or 24 V supply rails feeding motor drivers or communication ICs. IC Role / Device Role / Timing Role: Parallel-connected TVS shunting surge current away from downstream regulators and LDOs. Use Value: 600 W rating handles sustained 100 ms load-dump transients per ISO 16750-2 without thermal runaway. |
Use Scenario: Bidirectional protection on differential data lines exposed to ESD and cable discharge events. IC Role / Device Role / Timing Role: Though P6SMB16A-E3/5B is unidirectional, its 13.6 V VWM suits single-ended bias networks in RS-485 receivers. Use Value: Clamps common-mode surges to ≤22.5 V, preserving receiver common-mode range and preventing data corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A-E3/5B | Same SMB package, identical VWM/VBR/VC, but lower 400 W PPPM rating. | Limited to lower-energy transients (IEC 61000-4-2 ±8 kV contact, not full IEC 61000-4-5). | Select when cost sensitivity outweighs need for 600 W surge headroom. |
| 1.5SMC16A | Same electrical specs, but larger SMC (DO-214AB) package (2.79 mm x 6.22 mm vs. SMB's 2.20 mm x 3.94 mm). | Requires PCB layout change; higher thermal mass improves heat dissipation but reduces board density. | Choose for legacy designs using SMC footprints or where enhanced thermal derating is critical. |
Compared with SMAJ16A-E3/5B and 1.5SMC16A, the P6SMB16A-E3/5B delivers optimal balance of compact SMB footprint, 600 W surge capacity, and commercial-grade reliability-making it preferred for space-constrained automotive and industrial control modules requiring certified surge immunity.
Availability
P6SMB16A-E3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O protection, and DC power rail conditioning requiring stable component supply, RoHS compliance, and tape-and-reel delivery for SMT assembly.
Supply support for P6SMB16A-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 targets high-energy transient suppression in automotive, industrial, and telecom systems, engineered for rapid response, stable clamping, and compatibility with automated manufacturing processes.
FAQ
What is the maximum clamping voltage of the P6SMB16A-E3/5B under surge conditions?
The P6SMB16A-E3/5B has a maximum clamping voltage (VC) of 22.5 V at 26.7 A peak pulse current with a 10/1000 μs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during transient events. The P6SMB16A-E3/5B maintains this clamping performance across its full operating temperature range (−65 °C to +150 °C), ensuring consistent protection in harsh environments.
Is the P6SMB16A-E3/5B suitable for automotive applications?
The P6SMB16A-E3/5B is RoHS-compliant commercial-grade; however, Vishay offers an AEC-Q101-qualified variant-P6SMB16AHE3_B/5B-with identical electrical specs and enhanced reliability testing for automotive use. While the P6SMB16A-E3/5B itself is not AEC-Q101 certified, its construction (glass-passivated junction, MSL Level 1, 150 °C TJ max.) supports demanding industrial applications where automotive qualification is not mandated.
How does the P6SMB16A-E3/5B differ from bidirectional TVS diodes like P6SMB16CA?
The P6SMB16A-E3/5B is unidirectional and functions only in reverse-bias clamping mode, with polarity marked by a cathode band. In contrast, P6SMB16CA is bidirectional and provides symmetrical clamping for AC-coupled or differential lines. The P6SMB16A-E3/5B offers lower leakage (<1.0 μA) and is preferred for DC rail protection, whereas P6SMB16CA suits RS-485 or Ethernet PHY protection where both polarities must be suppressed.
What is the thermal resistance of the P6SMB16A-E3/5B, and how does it affect PCB layout?
The P6SMB16A-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W. To maintain safe junction temperatures during repetitive surges, PCB layout must follow Vishay's recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pad per terminal. Reducing pad size increases RθJA, risking thermal failure during high-duty-cycle transients.
Can the P6SMB16A-E3/5B replace older P6KE16A through direct mounting?
No-the P6SMB16A-E3/5B uses the SMB (DO-214AA) package (2.20 mm × 3.94 mm), while P6KE16A uses the larger DO-15 axial package (4.5 mm Ø × 9.5 mm). Direct replacement requires PCB redesign. However, the P6SMB16A-E3/5B offers superior surge capability (600 W vs. 600 W nominal but lower actual due to package limitations), faster response, and SMT compatibility-making it a functional upgrade when layout allows.
P6SMB16A-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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 26.7A
- 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)
P6SMB16A-E3/5B FAQ
1.How can I place an order for P6SMB16A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB16A-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 P6SMB16A-E3/5B reliable?
The price and inventory of P6SMB16A-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 P6SMB16A-E3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB16A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB16A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB16A-E3/5B?
P6SMB16A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB16A-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 P6SMB16A-E3/5B?
For technical support, including P6SMB16A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB16A-E3/5B requirements.
6.How does Aetrix verify that P6SMB16A-E3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB16A-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 P6SMB16A-E3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB16A-E3/5B?
All P6SMB16A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB16A-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 P6SMB16A-E3/5B part is unused and in its original packaging.
Return procedure for P6SMB16A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB16A-E3/5B Tags

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