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Vishay General Semiconductor - Diodes Division P6SMB22CAHE3_A/H
- Part No.:
- P6SMB22CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB22CAHE3_A/H.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB22CAHE3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 22 V standoff voltage (VWM), 23.1 V minimum breakdown voltage (VBR), and 30.6 V maximum clamping voltage (VC) at 19.6 A peak pulse current (IPPM), designed to protect signal lines and power rails in automotive and industrial electronics against ESD and lightning-induced transients.
For engineers reviewing the P6SMB22CAHE3_A/H datasheet, P6SMB22CAHE3_A/H pinout, P6SMB22CAHE3_A/H application, or P6SMB22CAHE3_A/H equivalent, this AEC-Q101 qualified device offers verified bidirectional surge suppression with 600 W peak pulse power (10/1000 μs), low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive sensor interfaces and industrial I/O protection.
Technical Context
The P6SMB22CAHE3_A/H operates as a bidirectional avalanche diode, symmetrically clamping voltage surges above ±23.1 V in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), enabling effective suppression of ESD (IEC 61000-4-2) and inductive switching transients.
Thermally, it features RθJA = 100 °C/W and RθJL = 20 °C/W, supporting operation up to TJ = +150 °C. The device is rated for 100 A non-repetitive forward surge (IFSM) and maintains ≤1.0 μA reverse leakage at 18.8 V (VWM), ensuring minimal standby power impact in always-on circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 18.8 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 20.9–23.1 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transient events. |
| VC (Clamping Voltage) | 30.6 V at 19.6 A IPPM - Peak voltage seen by protected circuit under 600 W surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 600 W (10/1000 μs waveform) - Sustains high-energy transients without failure; validated per IEC 61000-4-5. |
| ID (Reverse Leakage) | ≤1.0 μA at VWM - Negligible standby current; avoids signal integrity degradation in high-impedance sensor paths. |
| TJ max. | +150 °C - Enables deployment in under-hood automotive environments and industrial enclosures without derating. |
| AEC-Q101 Qualified | Yes - Validated for automotive applications including engine control, ADAS sensors, and body electronics. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. Bidirectional configuration has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; conducts bidirectionally when voltage exceeds ±VBR - no orientation required during placement. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional 600 W surge capability | Clamps ±23.1 V transients to ≤30.6 V at 19.6 A - protects differential signal pairs and AC-coupled interfaces without polarity constraints. |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - suitable for Tier-1 production. |
| MSL Level 1 (260 °C reflow) | Compatible with standard lead-free SMT assembly without pre-baking - reduces manufacturing complexity and cost. |
| Glass-passivated junction | Ensures stable VBR over lifetime and temperature; eliminates parameter drift in harsh thermal environments. |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes overvoltage exposure to protected ICs - critical for safeguarding 3.3 V and 5 V logic interfaces. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector entry point to shunt transients before reaching signal conditioning circuitry. Use Value: Maintains signal integrity under ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-2 ±15 kV contact discharge while surviving 150 °C under-hood temperatures. |
Use Scenario: Shielding 4–20 mA current loop inputs and 0–10 V analog channels in programmable logic controllers against field wiring surges. IC Role / Device Role / Timing Role: Front-end transient suppressor on terminal blocks and signal isolation barriers to prevent latch-up or damage to ADC front-ends. Use Value: Limits clamped voltage to 30.6 V, well below typical 36 V input stage ratings, enabling robust operation in factory-floor electromagnetic environments. |
| Telecom Line Card Protection | Consumer Appliance Motor Control |
Use Scenario: Safeguarding Ethernet PHYs and DSL line drivers from induced lightning surges on outdoor-facing ports in access equipment. IC Role / Device Role / Timing Role: Secondary-level TVS deployed after gas discharge tube (GDT) primary protection to handle residual fast-rising transients. Use Value: Sub-1 ns response time captures high-frequency overshoot missed by slower GDTs, reducing risk of PHY IC damage during multi-kV surges. |
Use Scenario: Suppressing inductive kickback from brushed DC motors and solenoids in washing machines, HVAC actuators, and power tools. IC Role / Device Role / Timing Role: Across-the-line TVS mounted across motor terminals to clamp flyback voltage spikes during MOSFET/FET switching. Use Value: Withstands repetitive 600 W pulses at 0.01% duty cycle - prevents cumulative degradation during frequent motor start/stop cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22CA-E3/5B | Same VWM (18.8 V), lower PPPM (400 W), SMA package (larger footprint, higher RθJA) | Limited to lower-energy transients; less suitable for automotive load-dump compliance | Select when cost or legacy layout constrains use of SMB; verify thermal margin at 100 °C ambient. |
| 1.5KE22CA | Through-hole DO-201 package, same VWM/VC specs, higher IFSM (200 A), but no AEC-Q101 qualification | Not suitable for automated SMT lines or automotive production; requires manual insertion or wave soldering | Choose only for prototyping or non-automotive repair scenarios where board space and qualification are secondary. |
Compared with SMAJ22CA-E3/5B and 1.5KE22CA, the P6SMB22CAHE3_A/H uniquely combines AEC-Q101 qualification, SMB footprint efficiency, and full 600 W surge rating - making it the preferred choice for volume automotive and industrial SMT designs requiring zero compromise on reliability or manufacturability.
Availability
P6SMB22CAHE3_A/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, telecom line cards, and consumer appliance motor control systems requiring stable component supply with guaranteed long-term continuity.
Supply support for P6SMB22CAHE3_A/H 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, and protection devices with emphasis on high-reliability, automotive-grade, and industry-standard solutions.
The P6SMB Series was developed specifically for surface-mount transient suppression in space-constrained, high-surge environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation and robust 10/1000 μs waveform handling.
FAQ
What is the clamping voltage of the P6SMB22CAHE3_A/H under maximum surge conditions?
The P6SMB22CAHE3_A/H exhibits a maximum clamping voltage (VC) of 30.6 V when subjected to its rated peak pulse current of 19.6 A (10/1000 μs waveform). This value is measured per standard test conditions defined in the Vishay datasheet (Document Number: 88370), and represents the upper limit of voltage imposed on protected circuitry during worst-case transient events - critical for ensuring compatibility with 3.3 V, 5 V, and 24 V system rails.
Is the P6SMB22CAHE3_A/H suitable for automotive applications?
Yes, the P6SMB22CAHE3_A/H is explicitly AEC-Q101 qualified, as indicated by the "HE3" suffix and confirmed in Vishay's ordering information table. It meets rigorous automotive reliability requirements including temperature cycling, humidity bias, and mechanical shock testing - making it appropriate for engine control units, ADAS sensor interfaces, and body electronics where sustained operation up to +150 °C and immunity to load-dump transients are mandatory.
Does the P6SMB22CAHE3_A/H require polarity-aware PCB layout?
No, the P6SMB22CAHE3_A/H is a bidirectional TVS diode and carries no polarity marking on its SMB (DO-214AA) package. Its symmetrical construction allows installation in either orientation on the PCB - simplifying automated placement and eliminating risk of reverse-mount errors in high-volume SMT assembly of the P6SMB22CAHE3_A/H.
What is the maximum steady-state power dissipation of the P6SMB22CAHE3_A/H?
The P6SMB22CAHE3_A/H has a maximum steady-state power dissipation (PD) of 5.0 W when mounted on an infinite heatsink at TA = 50 °C. This rating reflects continuous thermal handling capability under normal operating conditions - distinct from its 600 W peak pulse rating, which applies only to short-duration transients (≤50 ms pulse width).
How does the P6SMB22CAHE3_A/H compare to unidirectional variants like P6SMB22AHE3_A/H?
The P6SMB22CAHE3_A/H differs from unidirectional P6SMB22AHE3_A/H solely in polarity behavior: the "CA" suffix denotes bidirectional operation with symmetrical clamping in both directions, whereas "A" indicates unidirectional operation with cathode band marking. Both share identical VWM (18.8 V), VBR (20.9–23.1 V), VC (30.6 V), and PPPM (600 W) - selection depends strictly on whether the protected circuit requires AC-coupled or differential signal protection.
P6SMB22CAHE3_A/H 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:
- Obsolete
- 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:
- -
- 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_A/H FAQ
1.How can I place an order for P6SMB22CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB22CAHE3_A/H 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_A/H reliable?
The price and inventory of P6SMB22CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB22CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB22CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB22CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB22CAHE3_A/H?
P6SMB22CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB22CAHE3_A/H 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_A/H?
For technical support, including P6SMB22CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB22CAHE3_A/H requirements.
6.How does Aetrix verify that P6SMB22CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB22CAHE3_A/H 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_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB22CAHE3_A/H?
All P6SMB22CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB22CAHE3_A/H, 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_A/H part is unused and in its original packaging.
Return procedure for P6SMB22CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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