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Vishay General Semiconductor - Diodes Division P6SMB22CAHE3/5B
- Part No.:
- P6SMB22CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB22CAHE3/5B.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,055
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Product details
Overview
P6SMB22CAHE3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the 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). It delivers 600 W peak pulse power with 10/1000 μs waveform and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the P6SMB22CAHE3/5B datasheet, P6SMB22CAHE3/5B pinout, P6SMB22CAHE3/5B application, or P6SMB22CAHE3/5B equivalent, this device serves as a robust, low-profile transient suppressor for bidirectional signal line and power rail protection in harsh environments where fast response, low clamping, and automotive-grade reliability are required.
Technical Context
The P6SMB22CAHE3/5B operates symmetrically in both directions due to its bidirectional construction, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM = 18.8 V), while the 100 °C/W junction-to-ambient thermal resistance supports operation up to +150 °C junction temperature.
Designed for repetitive surge events at 0.01% duty cycle, it maintains clamping performance under 10/1000 μs waveform stress and exhibits a temperature coefficient of VBR at +0.092 %/°C - critical for predictable overvoltage response across automotive temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 18.8 V - Maximum continuous reverse working voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 20.9–23.1 V at 1 mA - Voltage at which device enters avalanche conduction; tight tolerance ensures consistent turn-on behavior. |
| VC (Clamping Voltage) | 30.6 V at IPPM = 19.6 A - Peak voltage seen by protected circuit during surge; directly limits stress on downstream ICs or MOSFETs. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy absorption capability per 10/1000 μs waveform; enables protection against IEC 61000-4-5 Level 4 surges. |
| ID (Reverse Leakage) | <1.0 μA at VWM - Minimal standby current draw; preserves signal integrity and battery life in always-on systems. |
| TJ max. | +150 °C - Maximum junction temperature rating; supports under-hood automotive deployment without derating. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronic modules per stress test requirements including HTOL, TCT, and ESD; suffix HE3 denotes qualification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102. No polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (negative half-cycle) | Conducts during negative voltage excursions; symmetrical with cathode for bidirectional clamping. |
| Cathode | Transient current entry point (positive half-cycle) | Conducts during positive voltage excursions; functionally identical to anode in CA-series devices. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without external polarity management. |
| 600 W peak pulse power | Withstands high-energy transients such as load dump or inductive switching spikes common in 12 V automotive systems. |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes overvoltage overshoot during surge events, reducing risk of damage to sensitive 3.3 V or 5 V logic interfaces. |
| AEC-Q101 qualification (HE3 suffix) | Validates reliability for automotive control units, ADAS sensors, and body electronics requiring long-term field stability. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and reflow compatibility at 260 °C peak, simplifying SMT assembly without baking requirements. |
Applications
| Automotive CAN Bus Protection | Industrial Sensor Signal Lines |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L differential pair in vehicle ECUs from ESD and ISO 7637-2 pulse 1/2a/5a transients. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential pair to clamp both polarities while preserving signal integrity. Use Value: Clamps to ≤30.6 V during 19.6 A surge, preventing CAN transceiver latch-up or permanent damage in 12 V systems. |
Use Scenario: Shielding analog output (4–20 mA) or digital I²C lines of pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor mounted at connector interface to shunt induced noise before reaching ADC or MCU. Use Value: Sub-1 μA leakage avoids loading precision sensor outputs; 30.6 V clamping protects 24 V-rated industrial IO circuits. |
| Consumer Power Adapter Inputs | Telecom Line Card Surge Protection |
Use Scenario: Input-stage protection for AC/DC adapters subjected to lightning-induced surges on primary-side rectifier outputs. IC Role / Device Role / Timing Role: Secondary-side TVS across DC bus to absorb residual transients after MOV filtering. Use Value: 600 W rating handles residual 10/1000 μs surges; 18.8 V VWM aligns with 24 V adapter rails without false triggering. |
Use Scenario: Front-end protection of Ethernet PHY or DSL line drivers exposed to induced surges on outdoor telecom wiring. IC Role / Device Role / Timing Role: Bidirectional suppressor across differential data lines to maintain common-mode rejection during surge events. Use Value: Symmetrical clamping ensures equal protection on both line conductors; DO-214AA footprint fits dense telecom PCB layouts. |
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 VWM (18.8 V), lower PPPM (400 W), SMA package (larger RθJA = 140 °C/W) | Limited to lower-energy transients; less suitable for automotive load dump scenarios | Select when cost or legacy footprint drives choice, but verify thermal margin for 600 W pulses. |
| SMCJ22CA | Same VWM and VC, higher PPPM (1500 W), larger SMC package (RθJA = 50 °C/W) | Overqualified for space-constrained designs; requires more PCB area and higher assembly cost | Choose only when system-level surge testing exceeds 600 W or junction temperature must stay below 125 °C under sustained stress. |
Compared with SMAJ22CA and SMCJ22CA, the P6SMB22CAHE3/5B uniquely balances 600 W surge handling, AEC-Q101 qualification, and SMB footprint - making it optimal for automotive and industrial applications where reliability, size, and standardized surge immunity intersect.
Availability
P6SMB22CAHE3/5B is available at Aetrix Electronics and suitable for automotive control units, industrial sensor interfaces, and telecom line card designs requiring stable component supply with AEC-Q101 assurance and consistent SMB packaging.
Supply support for P6SMB22CAHE3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on high-reliability, high-efficiency solutions.
The P6SMB Series targets board-level transient protection in automotive, industrial, and communications systems, delivering standardized 600 W surge capability in compact surface-mount packages with rigorous qualification for mission-critical environments.
FAQ
What does the "CA" suffix indicate in P6SMB22CAHE3/5B?
The "CA" suffix denotes a bidirectional configuration, meaning the P6SMB22CAHE3/5B provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P6SMB22A), it has no polarity marking and functions identically across either terminal orientation - essential for protecting AC-coupled or floating signal paths without external diode pairing.
Is P6SMB22CAHE3/5B suitable for automotive under-hood applications?
Yes, the P6SMB22CAHE3/5B is AEC-Q101 qualified (confirmed by the "HE3" suffix) and rated for TJ = –65 °C to +150 °C. Its glass-passivated junction, MSL Level 1 rating, and 600 W surge capability meet requirements for engine control modules, body controllers, and ADAS sensor interfaces exposed to high ambient temperatures and electrical noise.
How does the clamping voltage of P6SMB22CAHE3/5B compare to its breakdown voltage?
The P6SMB22CAHE3/5B has a minimum breakdown voltage (VBR) of 20.9 V and a maximum clamping voltage (VC) of 30.6 V at 19.6 A IPPM, yielding a clamping ratio of ~1.46. This ratio reflects the device's ability to limit transient overvoltage while maintaining low incremental resistance - critical for protecting 24 V-rated components without excessive voltage overshoot.
What is the significance of the "5B" in P6SMB22CAHE3/5B?
The "5B" denotes the packaging format: 13-inch diameter plastic tape and reel containing 3200 units. This large-reel configuration supports high-volume SMT production lines, reduces changeover frequency, and aligns with industry-standard feeder compatibility - distinct from the "52" (7-inch reel, 750 units) option used for prototyping or low-volume builds.
Can P6SMB22CAHE3/5B replace P6SMB22A in an existing design?
No - P6SMB22CAHE3/5B is bidirectional, while P6SMB22A is unidirectional and marked with a cathode band. Substituting them requires verifying circuit topology: P6SMB22CAHE3/5B may be used across differential lines or floating rails, but cannot replace P6SMB22A in series-configured DC power paths without redesigning polarity handling and leakage paths.
P6SMB22CAHE3/5B 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:
- Discontinued at Digi-Key
- 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)
P6SMB22CAHE3/5B FAQ
1.How can I place an order for P6SMB22CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB22CAHE3/5B 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 P6SMB22CAHE3/5B reliable?
The price and inventory of P6SMB22CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB22CAHE3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB22CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB22CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB22CAHE3/5B?
P6SMB22CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB22CAHE3/5B 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 P6SMB22CAHE3/5B?
For technical support, including P6SMB22CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB22CAHE3/5B requirements.
6.How does Aetrix verify that P6SMB22CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB22CAHE3/5B 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 P6SMB22CAHE3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB22CAHE3/5B?
All P6SMB22CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB22CAHE3/5B, 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 P6SMB22CAHE3/5B part is unused and in its original packaging.
Return procedure for P6SMB22CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB22CAHE3/5B Tags
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