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Vishay General Semiconductor - Diodes Division 1.5SMC220A-M3/57T
- Part No.:
- 1.5SMC220A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC220A-M3/57T.pdf
- Description:
- TVS DIODE 185VWM 328VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:8,905
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Product details
Overview
1.5SMC220A-M3/57T from Vishay General Semiconductor is a unidirectional 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), 209–231 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (10/1000 μs), 328 V maximum clamping voltage at 4.6 A, and operates from −65 °C to +150 °C - deployed in automotive power supply rails and industrial sensor interfaces.
For engineers reviewing the 1.5SMC220A-M3/57T datasheet, 1.5SMC220A-M3/57T pinout, 1.5SMC220A-M3/57T application, or 1.5SMC220A-M3/57T equivalent, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, thermal derating above 25 °C, unidirectional polarity marking, SMC (DO-214AB) package layout compatibility, and halogen-free RoHS compliance per M3 suffix.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ns) to transient overvoltages induced by inductive switching or lightning surges. Its low incremental surge resistance ensures stable clamping performance under repetitive 10/1000 μs pulses at 0.01% duty cycle.
The device is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine), with thermal resistance of 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads. Polarity is marked by a cathode band; no marking applies to bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 185 V - maximum continuous reverse voltage before conduction begins; defines safe operating margin below protected circuit's max rating |
| VBR (Breakdown) | 209–231 V at 1 mA - verified breakdown threshold where device enters avalanche conduction; tight 5% tolerance enables predictable protection onset |
| VC (Clamping) | 328 V at IPPM = 4.6 A - peak voltage seen across protected line during 10/1000 μs surge; must remain below downstream IC's absolute max rating |
| PPPM | 1500 W - peak transient energy absorption capability under standardized 10/1000 μs waveform; supports IEC 61000-4-5 Level 4 compliance |
| ID (Leakage) | 1.0 μA at VWM - negligible reverse leakage ensures minimal power loss and signal integrity in standby operation |
| TJ max. | +150 °C - maximum junction temperature enabling use in under-hood automotive and high-temperature industrial environments |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; cathode indicated by band on unidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to lower-potential side of protected line; critical for correct orientation in unidirectional surge path |
| Cathode | Current exit terminal in forward bias; marked with band | Connected to higher-potential side (e.g., VBUS); determines directionality and clamping polarity relative to ground |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables robust protection against severe transients including IEC 61000-4-5 combination wave surges without degradation |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for automotive and industrial end equipment without compromising thermal or electrical performance |
| MSL Level 1 (260 °C reflow peak) | Supports standard lead-free PCB assembly processes without preconditioning or special handling |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving clamping accuracy and system reliability |
| AEC-Q101 qualified option available | Variant 1.5SMC220AHM3_A/H meets automotive stress test requirements for powertrain and body electronics applications |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and ground to clamp positive surges exceeding 185 V. Use Value: Limits voltage to ≤328 V during 1500 W surges, preventing damage to MCU power inputs and CAN transceivers. |
Use Scenario: Safeguarding 4–20 mA analog sensor outputs against ESD and field-induced surges in factory automation. IC Role / Device Role / Timing Role: TVS mounted across output terminals to shunt transients before reaching ADC input or isolation amplifier. Use Value: Sub-1 ns response and 1.0 μA leakage preserve signal fidelity while absorbing >1 kV ESD events per IEC 61000-4-2. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Securing PoE-powered network switches against induced surges on 48 V DC input lines. IC Role / Device Role / Timing Role: Primary clamping device upstream of DC-DC converter, oriented anode-to-ground. Use Value: 185 V VWM provides margin above nominal 48 V, while 328 V VC protects downstream FET gate drivers and controllers. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances. IC Role / Device Role / Timing Role: Mounted across motor terminals to clamp inductive kickback during PWM commutation. Use Value: 200 A IFSM rating withstands repeated 8.3 ms motor stall currents; glass-passivated junction ensures long-term stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220A | Same 220 V VWM, but SMB package (smaller footprint, lower PPPM = 600 W) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 | Select when board space is constrained and surge threat level is moderate (e.g., consumer USB ports) |
| 1.5KE220A | Through-hole DO-201 package, identical electrical specs, higher RθJA (100 °C/W) | Requires manual or wave soldering; less suitable for high-density SMT production | Choose for legacy designs or prototyping where rework flexibility outweighs automation needs |
Compared with SMBJ220A and 1.5KE220A, the 1.5SMC220A-M3/57T delivers superior surge handling (1500 W vs. 600 W or same-power through-hole), SMT scalability, and halogen-free compliance - making it optimal for volume automotive and industrial production where reliability, manufacturability, and regulatory alignment are critical.
Availability
1.5SMC220A-M3/57T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input safeguarding requiring stable component supply across multi-year production cycles.
Supply support for 1.5SMC220A-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The 1.5SMC Series targets high-energy transient suppression in harsh environments - engineered for automotive, industrial, and telecom systems where consistent clamping, thermal resilience, and AEC-Q101 qualification matter.
FAQ
What is the clamping voltage of the 1.5SMC220A-M3/57T under a 10/1000 μs surge?
The 1.5SMC220A-M3/57T exhibits a maximum clamping voltage (VC) of 328 V when subjected to its rated peak pulse current of 4.6 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88303 and defines the upper voltage limit imposed on the protected circuit during surge events - critical for ensuring compatibility with downstream ICs rated for ≤36 V absolute maximum or higher-voltage power stages.
Is the 1.5SMC220A-M3/57T halogen-free and RoHS-compliant?
Yes, the 1.5SMC220A-M3/57T carries the M3 suffix, which explicitly denotes halogen-free, RoHS-compliant construction per Vishay's material categorization standards (document 99912). This makes the 1.5SMC220A-M3/57T suitable for environmentally regulated markets including EU automotive and industrial equipment, with full traceability and compliance documentation available upon request.
Does the 1.5SMC220A-M3/57T have AEC-Q101 qualification?
The base 1.5SMC220A-M3/57T is commercial-grade and not AEC-Q101 qualified; however, the automotive variant 1.5SMC220AHM3_A/H (same electrical specs, M3 + HM3 suffix) is fully AEC-Q101 qualified per Vishay's ordering table. For automotive applications requiring qualification, specify the HM3_A/H version - the 1.5SMC220A-M3/57T itself remains appropriate for industrial and telecom use where AEC-Q101 is not mandated.
What is the thermal resistance of the 1.5SMC220A-M3/57T, and how does it affect layout?
The 1.5SMC220A-M3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per JEDEC standards. To maintain safe operation at full 1500 W surge rating, PCB layout must provide adequate copper area and avoid thermal bottlenecks - undersized pads or insufficient ground planes will raise junction temperature and reduce surge endurance. The 1.5SMC220A-M3/57T datasheet specifies exact pad dimensions in Figure 5.
How does the 1.5SMC220A-M3/57T differ from bidirectional versions like 1.5SMC220CA?
The 1.5SMC220A-M3/57T is unidirectional, with polarity marked by a cathode band and intended for DC line protection where surge polarity is known (e.g., VBUS-to-ground). In contrast, 1.5SMC220CA is bidirectional, symmetric in both directions, and used in AC-coupled or floating signal lines. The 1.5SMC220A-M3/57T offers tighter parameter control for DC applications, while the CA variant sacrifices some VBR tolerance for dual-direction capability - they are not interchangeable without circuit redesign.
1.5SMC220A-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:
- 1
- Bidirectional Channels:
- -
- 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)
1.5SMC220A-M3/57T FAQ
1.How can I place an order for 1.5SMC220A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC220A-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 1.5SMC220A-M3/57T reliable?
The price and inventory of 1.5SMC220A-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 1.5SMC220A-M3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC220A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC220A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC220A-M3/57T?
1.5SMC220A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC220A-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 1.5SMC220A-M3/57T?
For technical support, including 1.5SMC220A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC220A-M3/57T requirements.
6.How does Aetrix verify that 1.5SMC220A-M3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC220A-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 1.5SMC220A-M3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC220A-M3/57T?
All 1.5SMC220A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC220A-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 1.5SMC220A-M3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC220A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC220A-M3/57T Tags
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