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Vishay General Semiconductor - Diodes Division P6SMB6.8CA-E3/52
- Part No.:
- P6SMB6.8CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB6.8CA-E3/52.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,301
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Product details
Overview
P6SMB6.8CA-E3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, with 6.8 V breakdown voltage (VBR), 5.8 V stand-off voltage (VWM), and 600 W peak pulse power rating at 10/1000 μs waveform. It clamps transients to ≤10.5 V at 57.1 A peak pulse current and is rated for -65 °C to +150 °C operation - used for ESD and surge protection on sensor signal lines and MOSFET gate drivers in automotive and industrial control systems.
For engineers reviewing the P6SMB6.8CA-E3/52 datasheet, P6SMB6.8CA-E3/52 pinout, P6SMB6.8CA-E3/52 application, or P6SMB6.8CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, low 10.5 V clamping voltage at rated IPPM, RoHS-compliant matte tin plating, MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, delivering consistent clamping performance without polarity dependence. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1000 μA at VWM), while the low incremental surge resistance enables rapid energy diversion during fast transients.
The device meets JESD201 Class 2 whisker resistance and is qualified to AEC-Q101 when ordered with HE3/HM3 suffixes - though P6SMB6.8CA-E3/52 itself is commercial-grade. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation under repetitive surge conditions when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA test current - defines precise voltage threshold where avalanche conduction begins in either direction |
| VWM | 5.8 V - maximum continuous reverse operating voltage before significant leakage; ensures no false triggering in normal operation |
| VC @ IPPM | 10.5 V at 57.1 A - clamping voltage during 600 W transient; determines protected circuit's maximum stress level |
| IPPM | 57.1 A - peak pulse current handling at 10/1000 μs waveform; quantifies surge energy absorption capacity |
| PPPM | 600 W - peak pulse power rating; validates suitability for IEC 61000-4-5 Level 3/4 surge immunity testing |
| TJ max | +150 °C - maximum junction temperature; supports operation in under-hood automotive and high-ambient industrial environments |
| Package | SMB (DO-214AA) - standardized 2-pin surface-mount outline with 0.220" × 0.130" footprint and 0.086" height; compatible with standard reflow profiles |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; conducts avalanche current in either direction when voltage exceeds ±VBR |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 600 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive subsystems |
| Low 10.5 V clamping voltage at 57.1 A | Limits downstream IC stress during 1 kV/0.5 Ω surge events, preserving logic-level interface integrity |
| MSL Level 1, 260 °C peak reflow | Supports lead-free assembly without pre-baking; eliminates moisture-related popcorning risk |
| Glass passivated junction | Ensures long-term parameter stability and low leakage drift over temperature and lifetime |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Analog Input Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential signal pair or supply rail to clamp ±transients before they reach precision amplifier or microcontroller input pins. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V interface ICs by limiting excursion to ≤10.5 V during 10/1000 μs surges up to 57.1 A. |
Use Scenario: Safeguarding 4–20 mA current loop receivers and ADC front-ends in programmable logic controllers against field-wiring induced surges. IC Role / Device Role / Timing Role: Placed between input terminals and ground to shunt transient energy away from op-amp input stages and protection diodes. Use Value: Maintains measurement accuracy by preventing input stage saturation during 1 kV ring wave transients, enabled by fast <1 ps response and low clamping voltage. |
| Consumer IoT Wireless Module ESD Protection | Power Supply Rail Clamp for DC-DC Converters |
|
Use Scenario: Shielding RF module antenna ports and UART/USB lines in smart home devices from human-body-model (HBM) ESD events. IC Role / Device Role / Timing Role: Low-capacitance TVS deployed at board edge connectors to divert 8 kV contact discharge before reaching SoC GPIOs. Use Value: Achieves IEC 61000-4-2 Level 4 compliance (±8 kV contact) without degrading 2.4 GHz signal integrity due to symmetrical structure and minimal parasitic capacitance. |
Use Scenario: Clamping input/output rails of buck converters in motor drives to suppress voltage spikes caused by MOSFET switching or back-EMF. IC Role / Device Role / Timing Role: Connected between VIN/VOUT and GND to absorb inductive kickback energy and prevent overvoltage shutdown or FET avalanche failure. Use Value: Extends converter reliability by limiting rail overshoot to ≤10.5 V during 100 ns switching transitions, reducing need for oversized input capacitors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8CA | Same VBR (6.45–7.14 V) and VC (10.5 V), but lower PPPM = 400 W and smaller SMA package (DO-214AC); RθJA = 125 °C/W | Less robust for high-energy surges; suitable only for HBM ESD or low-duty-cycle transients | Select when board space is constrained and surge threat level is ≤IEC 61000-4-5 Level 2 |
| 1.5SMC6.8CA | Same electrical specs but larger SMC (DO-214AB) package; PPPM = 1500 W, RθJA = 60 °C/W; higher thermal mass | Better for sustained surge duty cycles or high-temperature ambient environments (>85 °C) | Choose when system-level surge testing requires >600 W margin or PCB layout allows larger footprint |
Compared with SMAJ6.8CA, P6SMB6.8CA-E3/52 delivers 50 % higher surge power handling and superior thermal dissipation in the same production-ready SMB footprint; versus 1.5SMC6.8CA, it trades off peak power for tighter board area and lower assembly cost without sacrificing clamping performance.
Availability
P6SMB6.8CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC analog inputs, consumer IoT ESD protection, and DC-DC converter rail clamping requiring stable component supply across high-volume production programs.
Supply support for P6SMB6.8CA-E3/52 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on reliability, parametric consistency, and automotive qualification.
The P6SMB Series targets cost-sensitive, high-volume transient protection applications requiring standardized SMT packaging, AEC-Q101 readiness, and proven performance in harsh electromagnetic environments.
FAQ
What does the "CA" suffix indicate in P6SMB6.8CA-E3/52?
The "CA" suffix denotes a bidirectional configuration - meaning P6SMB6.8CA-E3/52 provides symmetrical transient suppression in both polarities, unlike unidirectional variants (e.g., P6SMB6.8A). This makes P6SMB6.8CA-E3/52 ideal for protecting AC-coupled signals, differential buses, or floating nodes where voltage polarity reversal is possible during surge events.
Is P6SMB6.8CA-E3/52 RoHS-compliant and halogen-free?
Yes, P6SMB6.8CA-E3/52 carries the "E3" suffix, indicating full RoHS compliance per EU Directive 2011/65/EU. It uses matte tin-plated leads and meets JESD201 Class 2 whisker resistance. However, it is not halogen-free; that designation requires the "M3" suffix (e.g., P6SMB6.8CA-M3/52).
What is the maximum clamping voltage of P6SMB6.8CA-E3/52 under surge conditions?
The maximum clamping voltage (VC) of P6SMB6.8CA-E3/52 is 10.5 V, measured at its rated peak pulse current (IPPM) of 57.1 A using a 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events.
Can P6SMB6.8CA-E3/52 be used in automotive applications?
P6SMB6.8CA-E3/52 is commercial-grade and not AEC-Q101 qualified. For automotive use, specify the HE3 or HM3 variant (e.g., P6SMB6.8CAHE3_B/H), which adds AEC-Q101 qualification, enhanced traceability, and extended temperature validation. P6SMB6.8CA-E3/52 remains suitable for non-safety-critical consumer or industrial applications with similar surge profiles.
What PCB pad layout is recommended for optimal thermal and electrical performance of P6SMB6.8CA-E3/52?
Vishay specifies mounting P6SMB6.8CA-E3/52 on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 600 W pulse power and thermal resistance of 100 °C/W. Smaller pads reduce surge capability and increase junction temperature - derating curves in Figure 2 must be applied if minimum pad area cannot be maintained.
P6SMB6.8CA-E3/52 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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 57.1A
- 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 (SMB)
P6SMB6.8CA-E3/52 FAQ
1.How can I place an order for P6SMB6.8CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB6.8CA-E3/52 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 P6SMB6.8CA-E3/52 reliable?
The price and inventory of P6SMB6.8CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB6.8CA-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB6.8CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB6.8CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB6.8CA-E3/52?
P6SMB6.8CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB6.8CA-E3/52 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 P6SMB6.8CA-E3/52?
For technical support, including P6SMB6.8CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB6.8CA-E3/52 requirements.
6.How does Aetrix verify that P6SMB6.8CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB6.8CA-E3/52 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 P6SMB6.8CA-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB6.8CA-E3/52?
All P6SMB6.8CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB6.8CA-E3/52, 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 P6SMB6.8CA-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB6.8CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB6.8CA-E3/52 Tags
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