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Vishay General Semiconductor - Diodes Division P6SMB220A-E3/52
- Part No.:
- P6SMB220A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB220A-E3/52.pdf
- Description:
- TVS DIODE 185VWM 328VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,525
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Product details
Overview
P6SMB220A-E3/52 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 industrial power supplies and automotive ECUs against lightning-induced surges and inductive switching transients.
For engineers reviewing the P6SMB220A-E3/52 datasheet, P6SMB220A-E3/52 pinout, P6SMB220A-E3/52 application, or P6SMB220A-E3/52 equivalent, this device delivers verified 600 W peak pulse power handling with 10/1000 μs waveform, low incremental surge resistance, and AEC-Q101 qualification eligibility-critical for robust overvoltage protection in high-reliability embedded systems.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-banded polarity, leveraging glass-passivated junction technology for stable avalanche behavior under repetitive transient stress. Its thermal resistance (RθJA = 100 °C/W) and junction temperature limit (TJ max = 150 °C) define safe derating above 25 °C ambient per Figure 2 of the datasheet.
The device responds within sub-nanosecond timeframes to fast-rising transients and maintains clamping performance across its full operating temperature range (–65 °C to +150 °C). It meets J-STD-020 MSL Level 1 and is RoHS-compliant with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 185 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 209–231 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 downstream component stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under standardized 10/1000 μs waveform at 0.01% duty cycle. |
| ID (Reverse Leakage) | 1.0 μA at VWM - Ultra-low leakage preserves system efficiency and prevents false triggering in high-impedance circuits. |
| TJ max | 150 °C - Maximum allowable junction temperature; sets thermal design boundary for PCB copper pad layout and airflow. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; used to calculate temperature rise under DC power dissipation. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with UL 94 V-0 flammability rating and matte tin-plated leads. Cathode identified by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential side of protected line. | Defines polarity-sensitive placement-must be oriented toward ground or return path in unidirectional configuration. |
| Cathode | Current exit terminal in forward bias; marked with band; connected to higher-potential side (e.g., VBUS). | Ensures correct clamping direction: conducts only when cathode voltage exceeds anode by ≥VBR, shunting surge to ground. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without derating in compact layouts. |
| Glass passivated chip junction | Provides stable, repeatable avalanche characteristics and long-term reliability under repeated transient stress. |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements. |
| AEC-Q101 qualification option (HE3 suffix) | Validates suitability for automotive powertrain and chassis applications requiring zero-defect reliability. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving protection margin for sensitive downstream ICs. |
Applications
| Industrial Power Supply Protection | Automotive ECU Input Protection |
|---|---|
|
Use Scenario: Protecting 24 V DC input stage of programmable logic controllers (PLCs) against load dump and inductive kickback from solenoid drivers. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between VIN and GND, activated within <1 ns to clamp transients exceeding 185 V. Use Value: Limits voltage seen by upstream DC-DC controller to ≤328 V during 600 W surges, preventing latch-up or gate oxide damage. |
Use Scenario: Safeguarding CAN transceiver power rail in engine control units exposed to ISO 7637-2 Pulse 5a (load dump up to 60 V, 100 ms). IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing energy from slow-rising but high-energy load dump events on 12 V/24 V battery lines. Use Value: Maintains 1.0 μA leakage at 185 V, avoiding quiescent current penalties while clamping to 328 V at 1.8 A peak. |
| Telecom Line Interface Protection | Renewable Energy Inverter DC Link |
|
Use Scenario: Shielding RS-485 transceiver power pins in outdoor base station equipment subjected to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary overvoltage clamp on VCC rail, coordinated with secondary GDT or MOV for staged protection. Use Value: Fast response and low Rsurge ensure clamping occurs before transient propagates into transceiver silicon, preserving data integrity. |
Use Scenario: Protecting IGBT gate driver supply in solar string inverters where DC link voltage reaches 1000 V, and local 220 V auxiliary rails require surge immunity. IC Role / Device Role / Timing Role: Secondary-level TVS on isolated 220 V auxiliary supply, suppressing coupling transients from main DC bus switching noise. Use Value: 209–231 V VBR range provides precise coordination with upstream crowbar circuits, avoiding nuisance tripping. |
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 | Same VWM/VBR/VC ratings, but SMA package (DO-214AC); RθJA = 140 °C/W vs. 100 °C/W for SMB. | Lower power density due to larger thermal resistance; requires larger copper area for same derating. | Select SMAJ220A only if board space allows larger footprint or legacy SMA layout exists. |
| 1.5SMC220A | Same electrical specs, but SMC (DO-214AB) package; higher PPPM (1500 W), larger body, RθJA = 65 °C/W. | Over-specified for 600 W use cases; occupies ~2× PCB area; better for higher-energy threats. | Choose 1.5SMC220A when system-level testing reveals need for >600 W margin or improved thermal headroom. |
Compared with SMAJ220A and 1.5SMC220A, P6SMB220A-E3/52 offers optimal balance of 600 W surge capability, SMB footprint compatibility, and superior thermal resistance (100 °C/W), making it ideal for space-constrained industrial and automotive modules where layout density and thermal performance are co-optimized.
Availability
P6SMB220A-E3/52 is available at Aetrix Electronics and suitable for industrial power supplies, automotive electronic control units, telecom infrastructure interfaces, and renewable energy inverters requiring stable component supply with consistent parametric performance and traceable sourcing.
Supply support for P6SMB220A-E3/52 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 handling, and automotive-grade qualification.
The P6SMB Series targets high-energy transient suppression in compact SMT formats, engineered specifically for industrial automation, transportation electronics, and communications equipment demanding AEC-Q101 readiness and robust surge immunity.
FAQ
What is the maximum clamping voltage of the P6SMB220A-E3/52 under a 10/1000 μs surge?
The P6SMB220A-E3/52 has a maximum clamping voltage (VC) of 328 V at 1.8 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88370 and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB220A-E3/52 achieves this clamping performance while maintaining low incremental surge resistance, ensuring minimal overshoot beyond VC.
Is the P6SMB220A-E3/52 RoHS-compliant and halogen-free?
Yes, the P6SMB220A-E3/52 carries the "E3" suffix, indicating it is RoHS-compliant and qualified to commercial grade standards per Vishay's ordering nomenclature. It is not halogen-free-that designation applies to "M3" suffix variants. The P6SMB220A-E3/52 uses matte tin-plated leads and conforms to JESD 201 Class 2 whisker resistance requirements, making it suitable for lead-free reflow assembly.
Can the P6SMB220A-E3/52 be used in bidirectional configurations?
No, the P6SMB220A-E3/52 is a unidirectional TVS diode, as indicated by the "A" suffix (not "CA"). Bidirectional operation requires the "CA" variant (e.g., P6SMB220CA). The P6SMB220A-E3/52 features a cathode band marking and conducts only when the cathode is positive relative to the anode-making it unsuitable for AC or symmetrical transient protection without external circuitry.
What is the thermal resistance and how does it affect PCB layout for the P6SMB220A-E3/52?
The P6SMB220A-E3/52 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. This value assumes the recommended pad layout shown in the Vishay datasheet. To maintain safe junction temperatures under sustained power dissipation, designers must allocate adequate copper area and consider airflow-especially since TJ max is 150 °C and derating begins above 25 °C ambient.
Does the P6SMB220A-E3/52 meet AEC-Q101 qualification?
The base P6SMB220A-E3/52 is not AEC-Q101 qualified; however, Vishay offers the automotive-grade variant P6SMB220AHE3_B (with "HE3" suffix and revision code "B") which is fully AEC-Q101 qualified. That part shares identical electrical specifications-including VWM = 185 V, VBR = 209–231 V, and VC = 328 V-but adds automotive-specific reliability testing and traceability. The P6SMB220A-E3/52 remains suitable for commercial and industrial applications.
P6SMB220A-E3/52 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:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB220A-E3/52 FAQ
1.How can I place an order for P6SMB220A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB220A-E3/52 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 P6SMB220A-E3/52 reliable?
The price and inventory of P6SMB220A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB220A-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB220A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB220A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB220A-E3/52?
P6SMB220A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB220A-E3/52 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 P6SMB220A-E3/52?
For technical support, including P6SMB220A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB220A-E3/52 requirements.
6.How does Aetrix verify that P6SMB220A-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB220A-E3/52 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 P6SMB220A-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB220A-E3/52?
All P6SMB220A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB220A-E3/52, 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 P6SMB220A-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB220A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB220A-E3/52 Tags
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