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Vishay General Semiconductor - Diodes Division P6SMB220AHM3_B/H
- Part No.:
- P6SMB220AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB220AHM3_B/H.pdf
- Description:
- 600W,220V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,386
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Product details
Overview
P6SMB220AHM3_B/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 220 V standoff voltage (VWM), 231 V minimum breakdown voltage (VBR), and 328 V maximum clamping voltage (VC) at 1.8 A peak pulse current (IPPM), designed to protect power rails and signal lines in automotive and industrial electronics against lightning-induced surges and inductive switching transients.
For engineers reviewing the P6SMB220AHM3_B/H datasheet, P6SMB220AHM3_B/H pinout, P6SMB220AHM3_B/H application, or P6SMB220AHM3_B/H equivalent, this AEC-Q101 qualified device offers verified 600 W peak pulse power (10/1000 μs), low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability board-level ESD and surge protection design.
Technical Context
The P6SMB220AHM3_B/H operates as a unidirectional avalanche diode with cathode-banded polarity, leveraging glass-passivated junction technology for stable breakdown behavior and fast sub-nanosecond response to transient overvoltages. Its clamping performance is characterized under standardized 10/1000 μs waveform conditions with 0.01% duty cycle.
Thermally, it features RθJA = 100 °C/W and RθJL = 20 °C/W, requiring PCB copper pad thermal management per recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) layout. It is halogen-free, RoHS-compliant, and qualified to AEC-Q101 for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 185 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC/AC rail protection threshold. |
| VBR (Breakdown Voltage) | 209–231 V at 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 328 V at IPPM = 1.8 A - Peak voltage seen by protected circuit during 600 W surge; determines downstream component stress margin. |
| PPPM (Peak Pulse Power) | 600 W (10/1000 μs) - Sustained surge energy handling capability; validates compliance with IEC 61000-4-5 Level 4 requirements. |
| ID (Reverse Leakage) | 1.0 μA at VWM - Ultra-low leakage preserves system efficiency and minimizes standby power loss. |
| TJ max | 150 °C - Maximum junction temperature rating; supports operation in under-hood automotive environments. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 2.20 mm height and 3.94 mm length; compatible with automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking. Dimensions: 3.94 mm × 2.20 mm × 1.52 mm (L × W × H); matte tin-plated leads, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; enables unidirectional clamping from cathode to anode during overvoltage. |
| Cathode (banded end) | Avalanche clamping terminal | Connected to higher-potential rail (e.g., VBUS); conducts surge current to ground when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensors, with guaranteed lifetime reliability under thermal cycling and humidity stress. |
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against severe lightning surges (IEC 61000-4-5) without derating in standard PCB layouts. |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term parameter stability across temperature and aging, critical for safety-critical systems. |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow assembly without preconditioning, reducing manufacturing complexity and cost. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and automotive material compliance standards (e.g., GMW3172, Ford WSS-M99P9999-A1). |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 24 V battery-fed ECUs from load-dump transients (ISO 7637-2 Pulse 5a) and alternator overshoot. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND, clamping spikes within 1 ns to limit voltage seen by downstream PMICs and microcontrollers. Use Value: With VC = 328 V and 600 W rating, P6SMB220AHM3_B/H prevents latch-up or gate oxide damage in 40 V-rated MOSFETs and LDOs. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) in factory automation sensors from EFT bursts (IEC 61000-4-4) and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp on signal path, grounded at receiver end to shunt transients away from precision ADC inputs. Use Value: 1.0 μA leakage at 185 V VWM avoids signal offset drift; SMB footprint allows placement directly at connector entry point. |
| Telecom DC Power Input Protection | Renewable Energy Inverter DC Link Protection |
|
Use Scenario: Safeguarding PoE-powered equipment (IEEE 802.3af/at) front-end rectifiers and DC-DC converters against induced surges on Ethernet cables. IC Role / Device Role / Timing Role: Primary surge suppression stage on 48 V input rail, coordinated with upstream gas discharge tube (GDT) for staged clamping. Use Value: 328 V clamping ensures secondary protection devices remain below their absolute maximum ratings during combined-mode surges. |
Use Scenario: Mitigating voltage spikes on photovoltaic string inputs (up to 1500 V DC) caused by rapid disconnection or lightning coupling into solar farm cabling. IC Role / Device Role / Timing Role: Secondary-level TVS in parallel with MOVs on DC bus, providing fast-response backup clamping when MOV response lags. Use Value: 220 V VWM aligns with system overvoltage thresholds; 150 °C TJ max supports operation inside outdoor-rated inverters with ambient up to 85 °C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ220A-E3/5B | Same VWM/VBR/VC specs, but SMA package (smaller footprint, lower thermal mass); RθJA = 140 °C/W vs. 100 °C/W. | Limited to lower-duty-cycle surges due to reduced thermal dissipation; not AEC-Q101 qualified. | Select for space-constrained consumer designs where automotive qualification is unnecessary. |
| 1.5SMC220AHE3_A/H | Same electrical specs, but SMC (DO-214AB) package - larger body (7.11 mm × 6.22 mm), higher PPPM derating margin; RθJA = 60 °C/W. | Better thermal performance for repetitive surge environments (e.g., motor drives); higher mounting height may conflict with enclosure clearance. | Select when sustained surge repetition or elevated ambient temperatures exceed SMB thermal limits. |
Compared with SMAJ220A-E3/5B and 1.5SMC220AHE3_A/H, P6SMB220AHM3_B/H uniquely balances AEC-Q101 qualification, SMB footprint compatibility, and verified 600 W surge handling - making it optimal for automotive and industrial modules where reliability, size, and thermal performance must coexist.
Availability
P6SMB220AHM3_B/H is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom power supplies, and renewable energy inverters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB220AHM3_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 high-reliability, automotive-qualified solutions.
The P6SMB series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for robust, standardized transient protection in harsh environments - targeting automotive, industrial, and telecom infrastructure applications demanding AEC-Q101 compliance and repeatable clamping performance.
FAQ
What is the clamping voltage of the P6SMB220AHM3_B/H under peak surge conditions?
The P6SMB220AHM3_B/H has a maximum clamping voltage (VC) of 328 V at 1.8 A peak pulse current (IPPM), measured using the standardized 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during a 600 W transient event and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2.
Is the P6SMB220AHM3_B/H suitable for automotive applications?
Yes, the P6SMB220AHM3_B/H is AEC-Q101 qualified, as indicated by the "HM3_B" suffix per Vishay's ordering information (page 3). It meets automotive reliability requirements including temperature cycling, humidity testing, and mechanical shock - making it appropriate for use in engine control units, body electronics, and ADAS sensor modules.
What does the "_B/H" suffix mean in P6SMB220AHM3_B/H?
In P6SMB220AHM3_B/H, "HM3" denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction; "_B" indicates AEC-Q101 qualification level for the 6.8 V to 220 V unidirectional/bidirectional range; "/H" specifies 7" diameter plastic tape and reel packaging with 750 units per reel, per Vishay's ordering table on page 3.
How does the P6SMB220AHM3_B/H compare to bidirectional TVS diodes?
The P6SMB220AHM3_B/H is unidirectional and features a cathode band for polarity identification; it conducts only in reverse bias above VBR. Bidirectional variants (e.g., P6SMB220CA) lack polarity marking and clamp symmetrically in both directions - used where AC line or differential signal protection is needed. P6SMB220AHM3_B/H is selected for DC rail protection where polarity is fixed.
What is the thermal resistance of the P6SMB220AHM3_B/H, and how does it affect layout?
The P6SMB220AHM3_B/H has RθJA = 100 °C/W and RθJL = 20 °C/W. To maintain junction temperature below 150 °C under 600 W pulses, PCB layout must use minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet figure notes. Smaller pads cause thermal derating and potential failure.
P6SMB220AHM3_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:
- 1
- Bidirectional Channels:
- -
- 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)
P6SMB220AHM3_B/H FAQ
1.How can I place an order for P6SMB220AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB220AHM3_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 P6SMB220AHM3_B/H reliable?
The price and inventory of P6SMB220AHM3_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 P6SMB220AHM3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB220AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB220AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB220AHM3_B/H?
P6SMB220AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB220AHM3_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 P6SMB220AHM3_B/H?
For technical support, including P6SMB220AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB220AHM3_B/H requirements.
6.How does Aetrix verify that P6SMB220AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB220AHM3_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 P6SMB220AHM3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB220AHM3_B/H?
All P6SMB220AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB220AHM3_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 P6SMB220AHM3_B/H part is unused and in its original packaging.
Return procedure for P6SMB220AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB220AHM3_B/H Tags
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DESD3V3E1BL-7B
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