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Vishay General Semiconductor - Diodes Division P6SMB22CAHM3_B/H
- Part No.:
- P6SMB22CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB22CAHM3_B/H.pdf
- Description:
- 600W,22V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,722
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Product details
Overview
P6SMB22CAHM3_B/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 maximum breakdown voltage (VBR), and 600 W peak pulse power (10/1000 μs). It clamps transients to 30.6 V at 19.6 A peak pulse current and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the P6SMB22CAHM3_B/H datasheet, P6SMB22CAHM3_B/H pinout, P6SMB22CAHM3_B/H application, or P6SMB22CAHM3_B/H equivalent, this device serves as a robust, low-profile, RoHS-compliant, halogen-free transient suppressor for bidirectional signal line and power rail protection in harsh environments where reliability and fast response (<1 ns) are critical.
Technical Context
The P6SMB22CAHM3_B/H operates bidirectionally with symmetrical clamping behavior in both polarities, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable leakage performance and long-term reliability under repetitive surge stress.
Designed for 10/1000 μs waveform compliance, it delivers 600 W peak pulse power with low incremental surge resistance and excellent clamping ratio (VC/VBR ≈ 1.32), minimizing overvoltage exposure to downstream ICs. Thermal resistance is specified at RθJA = 100 °C/W and RθJL = 20 °C/W, supporting operation up to TJ = +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 18.8 V - Maximum continuous reverse voltage before conduction begins; defines safe operating window for protected circuit. |
| VBR (Breakdown) | 20.9–23.1 V at 1 mA - Voltage range at which avalanche conduction initiates reliably; ensures predictable turn-on threshold. |
| VC (Clamping) | 30.6 V at 19.6 A IPPM - Peak voltage seen by protected circuit during 600 W transient; limits stress on downstream components. |
| PPPM | 600 W (10/1000 μs) - Surge energy handling capacity; supports IEC 61000-4-5 Level 3/4 compliance when properly laid out. |
| ID (Leakage) | 1.0 μA max at 18.8 V - Ultra-low reverse leakage preserves signal integrity and battery life in always-on systems. |
| TJ max | +150 °C - Enables use in under-hood automotive, industrial motor drives, and high-ambient environments. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per AEC standard. |
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. Molding compound meets UL 94 V-0. No polarity marking - bidirectional symmetry eliminates orientation concerns during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | Either end functions identically; no cathode band marking required - simplifies PCB layout and automated assembly. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Supports high-energy transients common in automotive load-dump and industrial switching noise without degradation. |
| AEC-Q101 qualification (HM3_B suffix) | Validated for automotive electronics including engine control units, ADAS sensors, and infotainment interfaces. |
| Halogen-free & RoHS-compliant (HM3) | Meets global environmental regulations and enables use in green manufacturing and export-sensitive applications. |
| MSL Level 1 (260 °C reflow) | Enables single-pass lead-free reflow without moisture sensitivity concerns - reduces production risk and cost. |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes overvoltage overshoot during surge events, protecting sensitive 3.3 V/5 V logic and analog front-ends. |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
|
Use Scenario: Protecting LIN/CAN transceiver inputs and sensor signal lines (e.g., pressure, temperature) from ESD and load-switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector or IC pin to shunt surges before they reach transceiver ESD structures. Use Value: Prevents latch-up or permanent damage to transceivers like TJA1042 or SN65HVD230 under ISO 7637-2 Pulse 1/2/5a stress. |
Use Scenario: Safeguarding differential CAN_H/CAN_L lines against coupled transients in factory automation PLCs and motor drives. IC Role / Device Role / Timing Role: Symmetric clamping device across differential pair to maintain common-mode immunity while limiting differential overvoltage. Use Value: Maintains CAN signal integrity during 600 W surges without distorting bit timing or causing bus arbitration errors. |
| Consumer USB Port ESD Protection | Telecom Power Rail Clamp |
|
Use Scenario: Adding secondary-level ESD protection on USB 2.0 data lines (D+/D−) in set-top boxes and smart displays. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp placed after primary ESD array to handle higher-energy events missed by on-die protection. Use Value: Survives ±15 kV contact discharge (IEC 61000-4-2) without degrading signal rise/fall times due to minimal parasitic capacitance. |
Use Scenario: Clamping 12 V/24 V DC input rails in telecom remote radio units exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on unregulated input stage, coordinated with upstream fuses and downstream DC/DC converters. Use Value: Limits rail collapse to ≤30.6 V during 10/1000 μs transients, preventing brownout resets and MOSFET gate oxide failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22CA | Same VWM/VBR/VC specs but lower PPPM (400 W); SMA package (larger footprint, higher RθJA). | Limited to lower-energy transients; less suitable for automotive load-dump or industrial 6 kV surge testing. | Choose when cost or legacy layout constraints favor SMA, and surge energy is confirmed ≤400 W. |
| 1.5KE22CA | Through-hole TO-204AE (DO-201AE); same electrical specs but 1.5 kW PPPM rating and slower response due to higher inductance. | Not suitable for high-speed signal lines; used only in bulk power rail protection where board space allows through-hole mounting. | Select only for non-SMT legacy designs or where higher peak power margin justifies larger footprint and manual assembly. |
Compared with SMAJ22CA and 1.5KE22CA, the P6SMB22CAHM3_B/H offers optimal balance of 600 W surge capability, SMB footprint efficiency, AEC-Q101 qualification, and surface-mount manufacturability - making it the preferred choice for new automotive and industrial designs requiring validated reliability and compact layout.
Availability
P6SMB22CAHM3_B/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN networks, consumer USB interfaces, and telecom power supplies requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P6SMB22CAHM3_B/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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade validation.
The P6SMB Series targets high-reliability transient suppression in space-constrained, thermally demanding applications - engineered specifically for automotive, industrial, and telecom systems needing AEC-Q101 qualified, halogen-free, surface-mount TVS solutions.
FAQ
What does the "HM3_B/H" suffix mean in P6SMB22CAHM3_B/H?
The "HM3" denotes halogen-free, RoHS-compliant construction with JESD 201 Class 2 whisker resistance; "B" indicates AEC-Q101 qualification for the 6.8 V to 220 V voltage range; "H" specifies 7″ tape-and-reel packaging (750 units per reel). This full suffix confirms P6SMB22CAHM3_B/H meets automotive reliability standards and green manufacturing requirements.
Is P6SMB22CAHM3_B/H unidirectional or bidirectional?
P6SMB22CAHM3_B/H is a bidirectional TVS diode, as indicated by the "CA" in its part number. It provides symmetrical clamping for both positive and negative transients without polarity marking - ideal for protecting AC-coupled lines, differential buses like CAN or RS-485, and floating sensor inputs where voltage polarity is undefined.
What is the maximum clamping voltage of P6SMB22CAHM3_B/H under surge conditions?
The maximum clamping voltage (VC) of P6SMB22CAHM3_B/H is 30.6 V at 19.6 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value represents the highest voltage imposed on the protected circuit during a 600 W transient event and is critical for ensuring downstream ICs remain within absolute maximum ratings.
Can P6SMB22CAHM3_B/H replace P6SMB22A in a design?
No - P6SMB22A is unidirectional (anode/cathode marked), while P6SMB22CAHM3_B/H is bidirectional with no polarity marking. Substituting them requires verifying circuit topology: bidirectional use (e.g., differential lines) mandates CA; unidirectional rails (e.g., 12 V supply to ground) require the "A" version. Using P6SMB22CAHM3_B/H in place of P6SMB22A introduces unnecessary symmetry and may affect leakage or layout optimization.
Does P6SMB22CAHM3_B/H meet any international surge immunity standards?
P6SMB22CAHM3_B/H itself is not certified to IEC 61000-4-2/4-4/4-5, but its 600 W 10/1000 μs rating and 30.6 V clamping enable system-level compliance when implemented with proper PCB layout (short traces, ground plane, minimized loop area). It is widely deployed in designs targeting ISO 7637-2 (automotive) and IEC 61000-4-5 (industrial) immunity requirements.
P6SMB22CAHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- 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)
P6SMB22CAHM3_B/H FAQ
1.How can I place an order for P6SMB22CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB22CAHM3_B/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 P6SMB22CAHM3_B/H reliable?
The price and inventory of P6SMB22CAHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB22CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB22CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB22CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB22CAHM3_B/H?
P6SMB22CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB22CAHM3_B/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 P6SMB22CAHM3_B/H?
For technical support, including P6SMB22CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB22CAHM3_B/H requirements.
6.How does Aetrix verify that P6SMB22CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB22CAHM3_B/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 P6SMB22CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB22CAHM3_B/H?
All P6SMB22CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB22CAHM3_B/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 P6SMB22CAHM3_B/H part is unused and in its original packaging.
Return procedure for P6SMB22CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB22CAHM3_B/H Tags
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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