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Vishay General Semiconductor - Diodes Division 1.5SMC220CA-M3/57T
- Part No.:
- 1.5SMC220CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC220CA-M3/57T.pdf
- Description:
- TVS DIODE 185VWM 328VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,323
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Product details
Overview
1.5SMC220CA-M3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 220 V standoff voltage (VWM), 231 V minimum breakdown voltage (VBR), 328 V maximum clamping voltage (VC) at 4.6 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5SMC220CA-M3/57T datasheet, 1.5SMC220CA-M3/57T pinout, 1.5SMC220CA-M3/57T application, or 1.5SMC220CA-M3/57T equivalent, key selection criteria include bidirectional clamping performance, SMC (DO-214AB) package thermal robustness, AEC-Q101 qualification eligibility, and compliance with UL 497B for telecom and automotive transient immunity standards.
Technical Context
This TVS operates symmetrically in both directions due to its bidirectional construction, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable avalanche characteristics and low leakage (<1 µA at VWM), while the low incremental surge resistance supports rapid energy dissipation during ESD or lightning-induced surges.
The device is rated for 150 °C maximum junction temperature and exhibits a +0.108 %/°C temperature coefficient of VBR, ensuring predictable voltage drift across automotive and industrial operating ranges. Mounting on 8.0 mm × 8.0 mm copper pads per terminal enables thermal derating per Fig. 2, supporting reliable operation up to 6.5 W steady-state power dissipation at TA = 50 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 185 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown) | 209–231 V at 1 mA - Confirmed avalanche onset range; ensures precise, repeatable clamping initiation under surge conditions. |
| VC (Clamping) | 328 V at IPPM = 4.6 A - Peak voltage seen by protected circuit during 10/1000 µs transient; determines downstream component stress. |
| PPPM | 1500 W - Surge energy handling capacity with standard 10/1000 µs waveform; validates suitability for IEC 61000-4-5 Level 4 compliance. |
| Package | SMC (DO-214AB) - Surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; optimized for automated placement and thermal pad coupling. |
| RoHS & Halogen-Free | M3 suffix - Meets RoHS Directive 2011/65/EU and halogen-free requirements per IEC 61249-2-21; suitable for green manufacturing. |
| TJ max | 150 °C - Maximum junction temperature rating; supports operation in under-hood automotive and high-ambient industrial environments. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge path | Either terminal serves as anode or cathode depending on transient polarity; no DC bias dependency or orientation requirement. |
| Case / Body | Thermal and mechanical interface | Non-electrical; provides mechanical anchoring and thermal conduction path to PCB copper pads (min. 8.0 mm × 8.0 mm per terminal). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns - e.g., RS-485, CAN FD, or sensor bridge outputs. |
| 1500 W peak pulse power | Supports robust immunity against IEC 61000-4-5 combination wave surges (4 kV/2 Ω) without degradation over 1000+ events at 0.01% duty cycle. |
| Low clamping ratio (VC/VBR ≈ 1.44) | Minimizes overvoltage stress on downstream ICs - critical for protecting 3.3 V or 5 V logic interfaces connected to 24 V industrial buses. |
| AEC-Q101 qualification option | Base P/NHM3_X variant available for automotive-grade reliability; includes extended temperature cycling, HTRB, and ESD testing per AEC standard. |
| UL 497B recognition (QVGQ2) | Validates use in telecom and data line protectors per Underwriters Laboratories safety standard - required for certified equipment in North America. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA current loops) in engine control modules from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS placed across signal and return paths to clamp ±100 V transients within 1 ns. Use Value: Prevents latch-up or gate oxide damage in op-amps and DACs by limiting voltage excursion to ≤328 V during 10/1000 µs surges. |
Use Scenario: Shielding digital input terminals of programmable logic controllers from induced surges on factory floor wiring. IC Role / Device Role / Timing Role: Primary front-end surge suppressor on 24 V DC inputs, coordinated with upstream fuse and downstream RC filter. Use Value: Maintains functional safety integrity by absorbing >120 J cumulative surge energy over product lifetime without parameter shift. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Safeguarding Ethernet PHY magnetics and PoE injectors against lightning-induced common-mode transients on twisted-pair cables. IC Role / Device Role / Timing Role: Common-mode TVS pair (two 1.5SMC220CA-M3/57T devices) across differential pairs to suppress >6 kV EFT bursts. Use Value: Enables UL 497B-compliant design for Class 2 limited-power circuits without requiring additional isolation transformers. |
Use Scenario: Secondary-side overvoltage protection in universal-input AC/DC adapters after rectification and bulk capacitance. IC Role / Device Role / Timing Role: Clamping device across DC bus to limit voltage spikes caused by transformer leakage inductance during MOSFET switching. Use Value: Eliminates need for snubber networks by clamping 400 V transients to 328 V, reducing BOM count and board space by 30%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220CA | Same VWM/VBR/VC ratings but SMB package (smaller footprint, lower thermal mass); 600 W PPPM rating. | Limited to lower-energy transients (IEC 61000-4-5 Level 2); unsuitable for 1500 W surge events. | Select when board space is constrained and surge threat level is ≤600 W - verify thermal derating with 5.0 mm × 5.0 mm pads. |
| 1.5KE220CA | Through-hole DO-201 package; identical electrical specs but higher RθJA (100 °C/W vs. 75 °C/W); lead-free finish only. | Requires wave soldering; incompatible with fully SMT production; less suitable for high-vibration environments. | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required. |
Compared with SMBJ220CA and 1.5KE220CA, the 1.5SMC220CA-M3/57T delivers optimal balance of high-energy surge capability (1500 W), SMT manufacturability, and thermal performance (RθJL = 15 °C/W) - making it the preferred choice for volume automotive and industrial applications demanding AEC-Q101 readiness and UL recognition.
Availability
1.5SMC220CA-M3/57T is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interfaces, and consumer power adapter designs requiring stable component supply, halogen-free compliance, and long-term lifecycle support.
Supply support for 1.5SMC220CA-M3/57T 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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series was engineered for high-power transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where robustness against lightning, ESD, and inductive switching surges is mission-critical.
FAQ
What is the clamping voltage of the 1.5SMC220CA-M3/57T under a 10/1000 µs surge?
The 1.5SMC220CA-M3/57T has a maximum clamping voltage (VC) of 328 V at 4.6 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88303 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the 1.5SMC220CA-M3/57T suitable for automotive applications?
Yes - the 1.5SMC220CA-M3/57T is part of the AEC-Q101-qualified 1.5SMC family when ordered with HM3_X suffix (e.g., 1.5SMC220CAHM3_A/H). While the M3/57T base variant is commercial-grade, its construction (glass-passivated junction, 150 °C TJ max, MSL Level 1) and UL 497B recognition make it suitable for non-safety-critical automotive subsystems like body control modules and sensor interfaces.
How does the bidirectional nature of the 1.5SMC220CA-M3/57T affect PCB layout?
The 1.5SMC220CA-M3/57T has no polarity marking and functions identically in either orientation, simplifying PCB layout by eliminating orientation checks during automated placement. Layout must still follow Vishay-recommended 8.0 mm × 8.0 mm copper pads per terminal to maintain thermal performance and achieve rated 1500 W pulse power - asymmetric traces or undersized pads will degrade clamping consistency.
What is the difference between the M3 and E3 suffixes in the 1.5SMC220CA-M3/57T part number?
The M3 suffix indicates halogen-free, RoHS-compliant construction meeting IEC 61249-2-21, while E3 denotes RoHS-compliant but standard brominated flame-retardant molding compound. Both share identical electrical specs and SMC packaging, but 1.5SMC220CA-M3/57T is required for green manufacturing programs and meets stricter environmental mandates in EU and Asia-Pacific markets.
Can the 1.5SMC220CA-M3/57T replace a unidirectional TVS like 1.5SMC220A-M3/57T?
No - the 1.5SMC220CA-M3/57T is strictly bidirectional and lacks cathode band marking; substituting it for a unidirectional device (e.g., 1.5SMC220A-M3/57T) in DC-biased circuits may cause unintended forward conduction or failure to clamp correctly. Use only where symmetrical AC or floating signal protection is required - verify circuit topology before replacement.
1.5SMC220CA-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, 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):
- 4.6A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
1.5SMC220CA-M3/57T FAQ
1.How can I place an order for 1.5SMC220CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC220CA-M3/57T 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 1.5SMC220CA-M3/57T reliable?
The price and inventory of 1.5SMC220CA-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC220CA-M3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC220CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC220CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC220CA-M3/57T?
1.5SMC220CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC220CA-M3/57T 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 1.5SMC220CA-M3/57T?
For technical support, including 1.5SMC220CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC220CA-M3/57T requirements.
6.How does Aetrix verify that 1.5SMC220CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC220CA-M3/57T 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 1.5SMC220CA-M3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC220CA-M3/57T?
All 1.5SMC220CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC220CA-M3/57T, 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 1.5SMC220CA-M3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC220CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC220CA-M3/57T Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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