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Vishay General Semiconductor - Diodes Division P6SMB220CAHM3_B/H
- Part No.:
- P6SMB220CAHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB220CAHM3_B/H.pdf
- Description:
- 600W,220V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,614
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Product details
Overview
P6SMB220CAHM3_B/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 220 V standoff voltage (VWM), 257 V minimum breakdown voltage (VBR), and 328 V maximum clamping voltage (VC) at 1.8 A peak pulse current (IPPM), designed to protect sensitive signal lines and power rails in automotive and industrial electronics against ESD and lightning-induced transients.
For engineers reviewing the P6SMB220CAHM3_B/H datasheet, P6SMB220CAHM3_B/H pinout, P6SMB220CAHM3_B/H application, or P6SMB220CAHM3_B/H equivalent, this device delivers AEC-Q101 qualification, 600 W peak pulse power (10/1000 μs), low incremental surge resistance, and halogen-free RoHS-compliant construction - critical for automotive-grade transient suppression where reliability under thermal stress and repetitive surge duty cycles matters.
Technical Context
The P6SMB220CAHM3_B/H operates as a bidirectional avalanche diode with symmetrical clamping behavior in both polarities, enabling protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repeated transient events.
Designed for surface-mount assembly on standard PCB copper pads (0.2" × 0.2"), it features MSL Level 1 moisture sensitivity, 260 °C lead-free reflow compatibility, and thermal resistance of 100 °C/W (junction-to-ambient), supporting operation up to +150 °C junction temperature with appropriate board layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 220 V - Maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown. |
| VBR (Breakdown Voltage) | 257–285 V at 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 328 V at IPPM = 1.8 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines safe stress level for downstream ICs. |
| PPPM (Peak Pulse Power) | 600 W - Sustains 10/1000 μs transients at 0.01% duty cycle; enables robust protection against IEC 61000-4-5 surges. |
| IR (Reverse Leakage) | 1 μA max at VWM - Minimal standby power loss and signal integrity impact in high-impedance circuits. |
| TJ max | +150 °C - Enables use in under-hood automotive environments and thermally constrained industrial enclosures. |
| Package | SMB (DO-214AA) - Standardized 2-pin SMD footprint with 5.59 mm × 4.06 mm body; compatible with automated pick-and-place and reflow. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically in bidirectional mode; conducts surge current in either direction once VC threshold is exceeded. |
| Case (body) | Thermal and mechanical interface | Non-electrical; transfers heat to PCB copper pads; requires minimum 5.0 mm × 5.0 mm copper area per terminal per datasheet fig. 2. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, infotainment, and ADAS sensor interfaces per stress test requirements. |
| Halogen-free & RoHS-compliant | Meets environmental compliance mandates for global OEM supply chains without compromising surge performance. |
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy transients such as ISO 7637-2 pulse 5a/b and IEC 61000-4-5 combination wave surges. |
| Low clamping ratio (VC/VBR ≈ 1.28) | Minimizes overvoltage overshoot during clamping, reducing risk of damage to 24 V or 48 V system components. |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free assembly without preconditioning; eliminates moisture-related popcorning risk. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 24 V CAN bus power rail from load dump and alternator transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed between VBAT and GND, clamping surges before they reach power management ICs and microcontrollers. Use Value: Withstands 600 W pulses and maintains <1 μA leakage at 220 V, ensuring minimal quiescent current draw and reliable startup after cold cranking. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Placed across signal and ground pins to suppress ESD (IEC 61000-4-2) and inductive switching noise from solenoid drivers. Use Value: 328 V clamping voltage limits stress on 3.3 V or 5 V ADC inputs; SMB footprint allows dense placement near connector entry points. |
| Telecom DC Power Feeding | Renewable Energy Monitoring |
|
Use Scenario: Safeguarding PoE-powered Ethernet switch ports against lightning-induced common-mode surges on DC bias lines. IC Role / Device Role / Timing Role: Bidirectional clamp on midspan injector output, absorbing energy before it couples into PHY transceivers. Use Value: Symmetrical response handles both positive and negative transients equally; 220 V VWM aligns with 24–48 V PoE+ systems. |
Use Scenario: Protecting RS-485 communication lines between solar inverter and monitoring gateway exposed to outdoor surge environments. IC Role / Device Role / Timing Role: Differential pair protection using two P6SMB220CAHM3_B/H devices (line-to-ground) in conjunction with common-mode chokes. Use Value: AEC-Q101 qualification ensures longevity in uncontrolled ambient conditions; 150 °C TJ rating supports operation in rooftop enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ220CA | Same VWM (220 V), lower PPPM (400 W), SMA package (smaller thermal mass, higher RθJA). | Limited to lower-energy transients; less suitable for automotive load dump or industrial 4 kV surge testing. | Choose when board space is constrained and surge energy is ≤400 W; verify thermal derating at elevated ambient. |
| 1.5KE220CA | Through-hole DO-201 package, same VWM/VC specs, but higher mounting inductance and manual assembly requirement. | Not suitable for high-volume SMT production; less robust against board flex-induced mechanical stress. | Select only for legacy through-hole designs or prototyping where rework tolerance outweighs automated assembly needs. |
Compared with SMAJ220CA and 1.5KE220CA, the P6SMB220CAHM3_B/H uniquely combines AEC-Q101 qualification, 600 W surge capability, SMB footprint, and halogen-free construction - making it the preferred choice for new automotive and industrial SMT designs requiring certified reliability and high-energy clamping.
Availability
P6SMB220CAHM3_B/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power interfaces, and renewable energy monitoring systems requiring stable component supply with full traceability and lifecycle continuity.
Supply support for P6SMB220CAHM3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom infrastructure, delivering standardized TVS performance with AEC-Q101 validation and scalable SMD packaging for automated manufacturing.
FAQ
What is the clamping voltage of P6SMB220CAHM3_B/H at its rated peak pulse current?
The P6SMB220CAHM3_B/H has a maximum clamping voltage (VC) of 328 V at 1.8 A peak pulse current (IPPM), measured under the standard 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2, electrical characteristics table. The P6SMB220CAHM3_B/H maintains this clamping performance across its specified operating temperature range.
Is P6SMB220CAHM3_B/H suitable for automotive applications?
Yes, P6SMB220CAHM3_B/H is AEC-Q101 qualified, as indicated by the "HM3_B" suffix per Vishay's ordering information (page 3). It meets stress test requirements for automotive environments including temperature cycling, humidity, and surge robustness. The P6SMB220CAHM3_B/H is explicitly recommended for engine control units, body electronics, and ADAS sensor protection where bidirectional 220 V standoff and 600 W surge handling are required.
What does the "CA" suffix mean in P6SMB220CAHM3_B/H?
The "CA" suffix in P6SMB220CAHM3_B/H denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression in both forward and reverse directions. Unlike unidirectional variants (e.g., P6SMB220A), the P6SMB220CAHM3_B/H has no cathode marking and functions identically regardless of voltage polarity, making it ideal for AC lines, differential buses, and floating grounds where polarity cannot be guaranteed.
What is the thermal resistance of P6SMB220CAHM3_B/H, and how does it affect layout?
The P6SMB220CAHM3_B/H 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 Vishay datasheet page 3. To maintain safe junction temperatures under repetitive surges, PCB layout must provide adequate copper area and avoid excessive trace length; insufficient copper will raise operating temperature and reduce surge endurance. The P6SMB220CAHM3_B/H relies on this pad layout for thermal performance.
How does P6SMB220CAHM3_B/H compare to unidirectional P6SMB220AHM3_B/H in circuit design?
The P6SMB220CAHM3_B/H differs from the unidirectional P6SMB220AHM3_B/H solely in polarity behavior: the "CA" version clamps symmetrically in both directions, while the "A" version clamps only in reverse bias and conducts forward like a rectifier. In circuits with defined polarity (e.g., DC power rails), the unidirectional variant offers slightly lower forward voltage drop. But for AC signals, differential pairs, or uncertain polarity, the P6SMB220CAHM3_B/H eliminates orientation errors and simplifies layout - no cathode band alignment needed.
P6SMB220CAHM3_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):
- 185V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 328V
- Current - Peak Pulse (10/1000µs):
- 1.8A
- 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)
P6SMB220CAHM3_B/H FAQ
1.How can I place an order for P6SMB220CAHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB220CAHM3_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 P6SMB220CAHM3_B/H reliable?
The price and inventory of P6SMB220CAHM3_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 P6SMB220CAHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB220CAHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB220CAHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB220CAHM3_B/H?
P6SMB220CAHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB220CAHM3_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 P6SMB220CAHM3_B/H?
For technical support, including P6SMB220CAHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB220CAHM3_B/H requirements.
6.How does Aetrix verify that P6SMB220CAHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB220CAHM3_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 P6SMB220CAHM3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB220CAHM3_B/H?
All P6SMB220CAHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB220CAHM3_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 P6SMB220CAHM3_B/H part is unused and in its original packaging.
Return procedure for P6SMB220CAHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB220CAHM3_B/H Tags
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