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Vishay General Semiconductor - Diodes Division P6SMB22CA-E3/52
- Part No.:
- P6SMB22CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB22CA-E3/52.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB22CA-E3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 22 V standoff voltage (VWM), 24.4–26.9 V breakdown voltage (VBR at 1 mA), 30.6 V maximum clamping voltage (VC) at 19.6 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 and automotive electronics.
For engineers reviewing the P6SMB22CA-E3/52 datasheet, P6SMB22CA-E3/52 pinout, P6SMB22CA-E3/52 application, or P6SMB22CA-E3/52 equivalent, key selection considerations include bidirectional clamping capability, RoHS-compliant matte tin terminals, MSL Level 1 moisture sensitivity, and AEC-Q101 qualification availability (via HE3/HM3 suffix variants).
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering consistent clamping performance without polarity dependency. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at VWM), while the low incremental surge resistance enables rapid energy dissipation during ESD or lightning-induced surges.
The device is rated for 150 °C maximum junction temperature and exhibits a typical thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads. Its fast response time (<1.0 ns) and compliance with IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT) make it suitable for robust front-end protection in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 22 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin before clamping activates. |
| VBR (Breakdown Voltage) | 24.4–26.9 V at 1 mA - Confirmed voltage range where device enters avalanche conduction; ensures predictable turn-on threshold. |
| VC (Clamping Voltage) | 30.6 V at 19.6 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case transient; determines safe voltage headroom for downstream components. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy absorption capacity under standardized 10/1000 µs waveform; supports repetitive surge events at 0.01% duty cycle. |
| IPPM (Peak Pulse Current) | 19.6 A - Maximum non-repetitive surge current the device can safely divert without degradation; verified per Fig. 3 waveform. |
| TJmax | 150 °C - Maximum allowable junction temperature; enables reliable operation in high-ambient industrial and under-hood automotive environments. |
| Package | SMB (DO-214AA) - Low-profile surface-mount outline with 5.59 mm × 4.06 mm footprint; optimized for automated placement and thermal pad layout per JEDEC standards. |
Pinout & Package
Package: SMB (DO-214AA), molded case with matte tin-plated leads, UL 94 V-0 rated compound, MSL Level 1 (260 °C reflow peak). Bidirectional construction has no polarity marking; both terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path terminal | Both terminals serve identical roles in bidirectional clamping; no cathode band marking; connects directly across protected line and return (e.g., data pair or supply rail). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., RS-485, CAN, USB D+/D−) without polarity concerns. |
| 600 W peak pulse power (10/1000 µs) | Supports high-energy transients common in industrial motor drives and automotive load-dump scenarios without derating. |
| Glass passivated junction | Ensures long-term stability of breakdown voltage and low leakage (<1 µA) over temperature and lifetime. |
| RoHS-compliant, matte tin terminals | Guarantees solderability per J-STD-002 and JESD 22-B102; eliminates whisker risk (JESD 201 Class 2). |
| AEC-Q101 qualification option | Available via HE3/HM3 suffix variants - validated for automotive-grade reliability including temperature cycling, HTRB, and mechanical shock. |
Applications
| Industrial Motor Control | Automotive Sensor Interface |
|---|---|
|
Use Scenario: Protecting gate drivers and feedback signal lines from inductive kickback during IGBT/MOSFET switching in variable-frequency drives. IC Role / Device Role / Timing Role: Bidirectional TVS placed across isolated gate drive transformer secondaries or analog feedback paths to clamp ±30 V transients. Use Value: Limits voltage excursion to ≤30.6 V, preventing damage to precision op-amps and isolated gate drivers rated for 36 V absolute maximum. |
Use Scenario: Shielding LIN bus or analog sensor outputs (e.g., pressure, temperature) from battery dump and jump-start surges in engine control modules. IC Role / Device Role / Timing Role: Placed between sensor output and microcontroller ADC input to suppress ±100 V/50 ms transients per ISO 7637-2 Pulse 5a. Use Value: Maintains signal integrity below 30.6 V clamping level, avoiding ADC saturation and enabling fault-free cold-cranking operation down to -40 °C. |
| Telecom Line Protection | Consumer USB Port ESD |
|
Use Scenario: Safeguarding Ethernet PHY interface transformers and PoE controller inputs against lightning-induced surges on outdoor telecom lines. IC Role / Device Role / Timing Role: Mounted across secondary windings of isolation transformers to absorb common-mode transients up to 600 W. Use Value: Withstands 19.6 A peak current at 30.6 V clamping, preserving transformer insulation and PHY IC latch-up immunity per IEC 61000-4-5 Level 4. |
Use Scenario: Providing secondary-level ESD protection on USB 2.0 D+ and D− lines in portable devices subjected to ±8 kV contact discharge. IC Role / Device Role / Timing Role: Bidirectional TVS placed differential across data lines to shunt ESD current before reaching USB transceiver ESD diodes. Use Value: Sub-1 ns response time and 30.6 V clamping ensure transceiver IO pins remain below 3.6 V stress limit during ±8 kV HBM events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22CA | Same 22 V VWM, but lower 400 W PPPM; SMA package (smaller footprint, higher RθJA = 140 °C/W). | Limited to lower-energy transients; less suitable for industrial motor drive or automotive load-dump. | Select when board space is constrained and surge energy remains ≤400 W. |
| SMCJ22CA | Same 22 V VWM, higher 1500 W PPPM; larger SMC package (7.11 mm × 6.22 mm), RθJA = 50 °C/W. | Overqualified for 600 W needs; requires more PCB area and higher assembly cost. | Choose only when future-proofing for >1 kW surge requirements or extended thermal margin is critical. |
Compared with SMAJ22CA and SMCJ22CA, the P6SMB22CA-E3/52 delivers optimal balance of 600 W surge handling, SMB footprint compatibility, and thermal performance - making it the preferred choice for mid-tier industrial and automotive protection where space, cost, and reliability must coexist.
Availability
P6SMB22CA-E3/52 is available at Aetrix Electronics and suitable for industrial motor control, automotive sensor interface, telecom line protection, and consumer USB port ESD requiring stable component supply and full traceability.
Supply support for P6SMB22CA-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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS, MOSFETs, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets surface-mount transient suppression in space-constrained, high-reliability systems - engineered for automotive, industrial, and telecom applications demanding AEC-Q101 readiness, low leakage, and repeatable clamping performance.
FAQ
What is the clamping voltage of the P6SMB22CA-E3/52 under a 10/1000 µs surge?
The P6SMB22CA-E3/52 has a maximum clamping voltage (VC) of 30.6 V at 19.6 A peak pulse current with a 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet (Doc. #88370, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The P6SMB22CA-E3/52 maintains this clamping performance bidirectionally, ensuring consistent protection regardless of transient polarity.
Is the P6SMB22CA-E3/52 RoHS-compliant and lead-free?
Yes, the P6SMB22CA-E3/52 is RoHS-compliant and lead-free, as indicated by the "E3" suffix per Vishay's ordering nomenclature. Its matte tin-plated terminals meet J-STD-002 solderability requirements and JESD 201 Class 2 whisker testing. The molding compound complies with UL 94 V-0 flammability rating, and the entire construction adheres to Directive 2011/65/EU without exemptions.
Does the P6SMB22CA-E3/52 have AEC-Q101 qualification?
The base P6SMB22CA-E3/52 is commercial-grade and not AEC-Q101 qualified; however, Vishay offers AEC-Q101-qualified versions under the HE3 and HM3 suffixes (e.g., P6SMB22CAHE3_B). These variants undergo full automotive stress testing including temperature cycling, HTRB, and mechanical shock, and are marked with revision codes (e.g., "_B") per datasheet note (1). The P6SMB22CA-E3/52 itself does not carry AEC-Q101 certification.
What is the thermal resistance of the P6SMB22CA-E3/52, and how does it affect layout?
The P6SMB22CA-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Thermal Characteristics table. To maintain safe junction temperatures under sustained 5.0 W power dissipation, designers must provide adequate copper area and avoid excessive ambient temperature rise. Layout should follow Vishay's recommended pad dimensions (0.086" min. width, 0.220" ref. length) to ensure thermal and mechanical reliability.
How does the bidirectional nature of the P6SMB22CA-E3/52 impact its use in differential signal lines?
The bidirectional design of the P6SMB22CA-E3/52 allows it to protect differential pairs - such as RS-485, CAN, or USB D+/D− - with a single device placed across the two lines. Unlike unidirectional TVS diodes, it clamps positive and negative transients equally without requiring external biasing or dual-device configurations. This simplifies layout, reduces BOM count, and ensures symmetrical transient response - a key advantage confirmed in Vishay's "Devices for Bidirectional Applications" section and electrical characteristics table.
P6SMB22CA-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):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 19.6A
- 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)
P6SMB22CA-E3/52 FAQ
1.How can I place an order for P6SMB22CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB22CA-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 P6SMB22CA-E3/52 reliable?
The price and inventory of P6SMB22CA-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 P6SMB22CA-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB22CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB22CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB22CA-E3/52?
P6SMB22CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB22CA-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 P6SMB22CA-E3/52?
For technical support, including P6SMB22CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB22CA-E3/52 requirements.
6.How does Aetrix verify that P6SMB22CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB22CA-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 P6SMB22CA-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB22CA-E3/52?
All P6SMB22CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB22CA-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 P6SMB22CA-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB22CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB22CA-E3/52 Tags
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