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Vishay General Semiconductor - Diodes Division P6SMB22CAHE3_B/I
- Part No.:
- P6SMB22CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB22CAHE3_B/I.pdf
- Description:
- 600W,22V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,886
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Product details
Overview
P6SMB22CAHE3_B/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 22 V standoff voltage (VWM), 24.5 V minimum breakdown voltage (VBR), 33.2 V maximum clamping voltage at 19.6 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the P6SMB22CAHE3_B/I datasheet, P6SMB22CAHE3_B/I pinout, P6SMB22CAHE3_B/I application, or P6SMB22CAHE3_B/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.36), MSL Level 1 moisture sensitivity, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal lines without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at 18.8 V), while the low incremental surge resistance supports fast transient response under repetitive 0.01% duty cycle conditions.
The device is thermally rated for TJ up to +150 °C and exhibits a typical junction-to-ambient thermal resistance of 100 °C/W on standard PCB pads. Its AEC-Q101 qualification confirms suitability for automotive environments, including engine control units and ADAS sensor modules where reliability under thermal cycling and mechanical shock is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 18.8 V - Maximum continuous reverse voltage before significant conduction begins; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 20.9–23.1 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients |
| VC (Clamping Voltage) | 33.2 V at IPPM = 19.6 A - Peak voltage seen by protected circuit during 10/1000 μs surge; limits stress on downstream ICs |
| PPPM (Peak Pulse Power) | 600 W - Sustains high-energy transients (e.g., ISO 7637-2 pulse 1/2a/5a) without failure when mounted per recommended pad layout |
| TJ max. | +150 °C - Enables operation in under-hood automotive locations and industrial enclosures with elevated ambient temperatures |
| MSL Level | Level 1 (J-STD-020) - Supports standard reflow profiles up to 260 °C peak without preconditioning |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HAST, and mechanical shock per AEC specification |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated terminals compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Provides symmetrical conduction path for positive or negative surges; connects to protected line or ground reference |
| Cathode | Transient return path (bidirectional) | Electrically identical to Anode in CA devices; forms dual-junction structure enabling equal clamping in both polarities |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), and ungrounded sensor outputs without polarity constraints |
| 600 W peak pulse power | Withstands ISO 7637-2 automotive load dump and inductive switching transients on 12 V systems without degradation |
| AEC-Q101 qualification | Validated for automotive electronics including body control modules, infotainment interfaces, and ADAS camera links |
| Low clamping ratio (VC/VBR ≈ 1.36) | Minimizes overvoltage exposure to protected ICs - critical for 3.3 V/5 V logic and precision analog front-ends |
| MSL Level 1 handling | Eliminates bake-out requirements and supports standard high-volume SMT assembly with lead-free reflow profiles |
Applications
| Automotive Sensor Interface | Industrial I/O Protection |
|---|---|
Use Scenario: Protecting CAN FD and LIN bus transceivers from ESD and load-dump transients in vehicle door modules and seat controllers. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between transceiver pins and connector interface to limit surge-induced damage. Use Value: Maintains signal integrity during 10/1000 μs pulses up to 600 W while meeting AEC-Q101 lifetime requirements for 15-year automotive service life. |
Use Scenario: Safeguarding PLC analog input channels (4–20 mA, 0–10 V) against field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Primary transient suppressor on terminal block side of isolation barrier, shunting energy before it reaches ADC or op-amp front-end. Use Value: Clamps to ≤33.2 V within nanoseconds, preventing latch-up or permanent damage to 24 V-rated industrial signal conditioners. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side overvoltage suppression on USB-C PD adapter output rails exposed to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Fast-response TVS placed directly at connector to absorb CDM/IEC 61000-4-2 ESD and capacitive coupling spikes. Use Value: Sub-1 ns response time and <1.0 μA leakage at 18.8 V ensure no impact on regulation accuracy or standby power consumption. |
Use Scenario: Protecting Ethernet PHY and PoE controller inputs on telecom access switches subjected to lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: First-stage protector on RJ-45 magnetics secondary side, coordinating with GDTs and PTCs in multi-stage architecture. Use Value: Symmetrical clamping enables common-mode and differential-mode surge suppression without requiring separate unidirectional devices per line pair. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22CA | Lower peak pulse power (400 W), same SMB package and 22 V VWM; higher clamping voltage (35.5 V at 11.3 A) | Less robust for automotive load-dump events; suitable for consumer-grade 24 V systems with lower surge severity | Select when cost sensitivity outweighs need for 600 W rating and AEC-Q101 compliance |
| 1.5KE22CA | Through-hole DO-201 package, 600 W rating, same VWM/VBR range; higher thermal resistance (RθJA ≈ 150 °C/W) | Not compatible with automated SMT lines; requires wave solder or hand assembly; less suitable for space-constrained PCBs | Choose only for legacy through-hole designs or prototyping where rework flexibility is prioritized over production efficiency |
Compared with SMAJ22CA and 1.5KE22CA, P6SMB22CAHE3_B/I delivers superior surge robustness in surface-mount form factor with automotive-grade qualification - enabling smaller layouts, higher reliability in vibration-prone environments, and seamless integration into high-volume SMT manufacturing flows.
Availability
P6SMB22CAHE3_B/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O protection, and telecom line card surge suppression requiring stable component supply across extended product lifecycles.
Supply support for P6SMB22CAHE3_B/I 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 and application-specific performance.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and communications infrastructure - engineered for consistent clamping behavior, low leakage, and compatibility with modern SMT assembly processes.
FAQ
What does the "CA" suffix indicate in P6SMB22CAHE3_B/I?
The "CA" suffix denotes a bidirectional configuration, meaning P6SMB22CAHE3_B/I provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P6SMB22A), it has no cathode marking and functions identically in either polarity - essential for protecting AC-coupled lines like RS-485 or differential sensor outputs without polarity concerns.
Is P6SMB22CAHE3_B/I qualified for automotive use?
Yes, P6SMB22CAHE3_B/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3_B". This qualification covers stress tests including temperature cycling, highly accelerated stress testing (HAST), and mechanical shock - validating its suitability for under-hood and cabin-mounted automotive electronics such as body control modules and ADAS sensor interfaces.
What is the maximum clamping voltage of P6SMB22CAHE3_B/I and under what test condition?
The maximum clamping voltage of P6SMB22CAHE3_B/I is 33.2 V, measured at a peak pulse current (IPPM) of 19.6 A using the standardized 10/1000 μs double-exponential waveform. This value reflects worst-case voltage seen by protected circuitry during surge events and is guaranteed across the full operating temperature range per Vishay Document Number 88370.
How does the SMB (DO-214AA) package of P6SMB22CAHE3_B/I compare to SMA or SMC packages?
The SMB (DO-214AA) package of P6SMB22CAHE3_B/I measures 4.57 mm × 3.94 mm × 2.20 mm - smaller than SMC (DO-214AB) but larger than SMA (DO-214AC). It offers a balance of surge capability (600 W) and board space efficiency, with validated thermal performance on 0.2" × 0.2" copper pads. Unlike SMA, SMB supports higher peak pulse power; unlike SMC, it enables denser routing in compact automotive and industrial PCBs.
What is the significance of the "_B/I" suffix in P6SMB22CAHE3_B/I?
The "_B/I" suffix in P6SMB22CAHE3_B/I indicates two attributes: "B" denotes AEC-Q101 qualification for the 6.8 V to 220 V voltage range, and "I" specifies packaging in 13-inch diameter plastic tape and reel with 3200 units per reel - optimized for high-volume SMT placement. This distinguishes it from "_B/H" (7-inch reel, 750 units) and confirms full automotive-grade traceability and handling compliance.
P6SMB22CAHE3_B/I 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB22CAHE3_B/I FAQ
1.How can I place an order for P6SMB22CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB22CAHE3_B/I 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 P6SMB22CAHE3_B/I reliable?
The price and inventory of P6SMB22CAHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB22CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB22CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB22CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB22CAHE3_B/I?
P6SMB22CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB22CAHE3_B/I 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 P6SMB22CAHE3_B/I?
For technical support, including P6SMB22CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB22CAHE3_B/I requirements.
6.How does Aetrix verify that P6SMB22CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB22CAHE3_B/I 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 P6SMB22CAHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB22CAHE3_B/I?
All P6SMB22CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB22CAHE3_B/I, 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 P6SMB22CAHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB22CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB22CAHE3_B/I Tags
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