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Vishay General Semiconductor - Diodes Division P6SMB220CAHM3_B/I
- Part No.:
- P6SMB220CAHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB220CAHM3_B/I.pdf
- Description:
- 600W,220V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,901
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Product details
Overview
P6SMB220CAHM3_B/I from Vishay General Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in the 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/I datasheet, P6SMB220CAHM3_B/I pinout, P6SMB220CAHM3_B/I application, or P6SMB220CAHM3_B/I equivalent, this device delivers AEC-Q101 qualification, 600 W peak pulse power (10/1000 μs), low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability board-level surge protection in harsh environments.
Technical Context
The P6SMB220CAHM3_B/I operates as a bidirectional clamping device with symmetrical avalanche behavior in both polarities, enabling robust protection of AC-coupled or differential signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and long-term reliability under repetitive surge stress.
Designed for surface-mount assembly on standard PCB copper pads (0.2" × 0.2"), it leverages thermal resistance RθJA = 100 °C/W and RθJL = 20 °C/W to sustain 600 W transient pulses while limiting junction temperature rise. The device meets JESD201 Class 2 whisker resistance and is halogen-free and RoHS-compliant per HM3 suffix designation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 220 V - Maximum continuous reverse voltage before clamping begins; defines operating margin for 220 V nominal systems. |
| VBR (Breakdown Voltage) | 257–285 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering above normal operating voltage. |
| VC (Clamping Voltage) | 328 V at IPPM = 1.8 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustains standardized lightning/surge transients (IEC 61000-4-5) without failure when mounted per recommended pad layout. |
| ID (Reverse Leakage) | 1.0 μA max at VWM - Negligible standby current; avoids signal distortion or power loss in high-impedance sensor interfaces. |
| TJ max | 150 °C - Enables operation in under-hood automotive or industrial enclosures without derating below ambient 125 °C. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing 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 leads compliant with J-STD-002 and JESD22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | Accepts reverse surge current during negative polarity transients; forms symmetrical clamping path with cathode. |
| Cathode | Transient current entry (positive half-cycle) | Accepts reverse surge current during positive polarity transients; enables bidirectional protection without external polarity management. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), or ungrounded power rails without polarity concerns. |
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) when properly laid out, reducing need for cascaded protection stages. |
| AEC-Q101 qualified (HM3_B/I) | Validated for automotive applications including engine control units, body electronics, and ADAS sensors requiring zero field failures. |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free reflow profiles without preconditioning; eliminates moisture-related popcorning risk during assembly. |
| Halogen-free & RoHS-compliant | Fulfills environmental compliance requirements for EU, China RoHS, and automotive OEM sustainability mandates. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector entry point to shunt surge energy before reaching IC pins. Use Value: Limits transient voltage to ≤328 V during 1.8 A surges, preventing latch-up or gate oxide damage in 5 V/12 V interface ICs. |
Use Scenario: Safeguarding RS-485 transceivers in factory automation PLCs exposed to motor switching noise and ground potential differences. IC Role / Device Role / Timing Role: Differential-line protector across A/B bus lines, absorbing common-mode and differential-mode transients up to 600 W. Use Value: Maintains signal integrity by clamping within 10 ns response time while adding <1 pF capacitance - no data rate degradation at 10 Mbps. |
| Telecom Power Input | Consumer Appliance Control Board |
|
Use Scenario: Input-stage surge suppression on 24 V DC power supplies feeding telecom base station modules subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of DC-DC converters and LDOs, coordinating with fuse or PTC for coordinated protection. Use Value: Withstands repeated 600 W pulses without parameter shift, ensuring multi-year field reliability in outdoor cabinets. |
Use Scenario: Protecting microcontroller GPIOs and relay drivers on washing machine or HVAC control boards from inductive kickback and ESD events. IC Role / Device Role / Timing Role: Localized clamping device adjacent to connectors and relays, minimizing trace inductance for fastest possible response. Use Value: 1.0 μA leakage at 220 V VWM prevents false triggering in high-impedance sensing circuits while enabling compact layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ220CA | Same VWM (220 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 without derating. | Select when board space is constrained and surge threat level is ≤Level 3; verify thermal margin at 100 °C ambient. |
| 1.5KE220CA | Same VWM (220 V), higher PPPM (1500 W), axial DO-201 package (through-hole, larger size) | Requires through-hole assembly; incompatible with automated SMT lines and high-density layouts. | Choose only for legacy designs or where mechanical robustness outweighs assembly efficiency and footprint goals. |
Compared with SMAJ220CA and 1.5KE220CA, the P6SMB220CAHM3_B/I uniquely balances 600 W surge capability, AEC-Q101 qualification, SMB footprint, and halogen-free compliance - making it the optimal choice for new automotive and industrial SMT designs requiring validated reliability and supply chain continuity.
Availability
P6SMB220CAHM3_B/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial communication interfaces, telecom power inputs, and consumer appliance control boards requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB220CAHM3_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, power efficiency, and application-specific performance.
The P6SMB Series targets board-level transient protection in automotive, industrial, and telecom systems, engineered to meet stringent AEC-Q101, IEC, and UL safety standards while supporting high-volume SMT manufacturing.
FAQ
What is the clamping voltage of P6SMB220CAHM3_B/I at its rated peak pulse current?
The P6SMB220CAHM3_B/I has a maximum clamping voltage (VC) of 328 V at 1.8 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Vishay's datasheet Figure 1 and Table on page 2, and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB220CAHM3_B/I maintains this clamping performance across its specified operating temperature range.
Is P6SMB220CAHM3_B/I suitable for automotive applications?
Yes, P6SMB220CAHM3_B/I is AEC-Q101 qualified (indicated by the HM3_B/I suffix), meaning it has passed stress tests including high-temperature reverse bias, temperature cycling, and ESD per automotive reliability standards. It is explicitly designated for use in engine control units, body electronics, and ADAS sensor modules where field failure is unacceptable. The P6SMB220CAHM3_B/I also meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow compatibility.
How does the bidirectional design of P6SMB220CAHM3_B/I affect its circuit placement?
The bidirectional design of P6SMB220CAHM3_B/I eliminates polarity marking and allows placement across any two nodes subject to differential or common-mode transients - such as RS-485 A/B lines, AC power inputs, or ungrounded sensor pairs. Unlike unidirectional TVS diodes, the P6SMB220CAHM3_B/I provides symmetrical clamping in both directions without requiring orientation verification during placement or risking misapplication. Its DO-214AA package supports automated pick-and-place with no orientation dependency.
What is the thermal resistance of P6SMB220CAHM3_B/I, and how does it impact layout?
The P6SMB220CAHM3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To achieve rated 600 W pulse power, PCB layout must follow Vishay's recommended pad dimensions and avoid excessive trace length between the P6SMB220CAHM3_B/I and protected node. Thermal relief should be minimized to maintain low-inductance, low-resistance paths for surge current dissipation.
Does P6SMB220CAHM3_B/I require external current limiting?
No, the P6SMB220CAHM3_B/I does not require external series current limiting for transient suppression because it operates as a voltage-clamping device that self-limits conduction once VBR is exceeded. However, for sustained overvoltage conditions (e.g., AC line fault), a series fuse or PTC is recommended upstream to prevent thermal runaway. The P6SMB220CAHM3_B/I's 5.0 W steady-state power rating (PD) and 150 °C max junction temperature define its safe continuous dissipation limit - well below its 600 W transient rating.
P6SMB220CAHM3_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):
- 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/I FAQ
1.How can I place an order for P6SMB220CAHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB220CAHM3_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 P6SMB220CAHM3_B/I reliable?
The price and inventory of P6SMB220CAHM3_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 P6SMB220CAHM3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB220CAHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB220CAHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB220CAHM3_B/I?
P6SMB220CAHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB220CAHM3_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 P6SMB220CAHM3_B/I?
For technical support, including P6SMB220CAHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB220CAHM3_B/I requirements.
6.How does Aetrix verify that P6SMB220CAHM3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB220CAHM3_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 P6SMB220CAHM3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB220CAHM3_B/I?
All P6SMB220CAHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB220CAHM3_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 P6SMB220CAHM3_B/I part is unused and in its original packaging.
Return procedure for P6SMB220CAHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB220CAHM3_B/I Tags
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