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Vishay General Semiconductor - Diodes Division 1.5SMC220CAHE3_A/I
- Part No.:
- 1.5SMC220CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC220CAHE3_A/I.pdf
- Description:
- TVS DIODE 185VWM 328VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:7,997
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Product details
Overview
1.5SMC220CAHE3_A/I 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 delivers 1500 W peak pulse power (10/1000 μs), clamps at 328 V under 4.6 A peak pulse current, and features a 185 V stand-off voltage with ≤1.0 μA reverse leakage at 25 °C - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the 1.5SMC220CAHE3_A/I datasheet, 1.5SMC220CAHE3_A/I pinout, 1.5SMC220CAHE3_A/I application, or 1.5SMC220CAHE3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMC (DO-214AB) package compatibility, and thermal resistance of 75 °C/W junction-to-ambient - critical for automotive-grade transient immunity design.
Technical Context
This device operates as a voltage-clamping protector using an avalanche breakdown mechanism, with symmetrical bidirectional behavior enabling suppression of both positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance across repetitive 10/1000 μs pulses at 0.01% duty cycle.
The 1.5SMC220CAHE3_A/I is rated for -65 °C to +150 °C operating junction temperature, meets MSL Level 1 per J-STD-020, and uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards - supporting lead-free reflow assembly in automotive and industrial PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains high-energy lightning or inductive-switching surges without failure |
| Stand-off Voltage (VWM) | 185 V - maximum continuous reverse voltage before clamping initiates |
| Clamping Voltage (VC) at IPPM | 328 V at 4.6 A - limits transient voltage seen by downstream circuitry |
| Breakdown Voltage (VBR) | 209–231 V at 1 mA - defines precise avalanche onset threshold |
| Reverse Leakage Current | ≤1.0 μA at 185 V - negligible standby power loss and signal integrity impact |
| Junction Temperature Range | -65 °C to +150 °C - supports operation in under-hood automotive and industrial environments |
| Thermal Resistance (RθJA) | 75 °C/W - determines required PCB copper area for thermal management |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with matte tin-plated leads; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | Either terminal serves as anode or cathode depending on transient polarity - no orientation required during placement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements - enables use in ADAS sensors and body control modules |
| Glass passivated junction | Enhances long-term reliability and stability of breakdown voltage under thermal cycling and humidity exposure |
| 1500 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly mounted on 8 mm × 8 mm copper pads |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking - simplifies SMT manufacturing flow |
| UL 497B recognition (QVGQ2) | Meets safety standard for telecom and industrial protectors - reduces certification burden for end equipment |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt transients before reaching interface ICs. Use Value: Maintains 185 V stand-off while clamping to 328 V - preserves signal integrity and prevents latch-up in 5 V/12 V sensor front-ends. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against induced surges from motor contactor switching. IC Role / Device Role / Timing Role: Primary surge suppressor on 24 V DC input lines, coordinated with upstream fuses and downstream TVS arrays. Use Value: 1500 W rating handles repetitive 10/1000 μs transients up to 0.01% duty cycle - extends field service life in factory automation systems. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Secondary-level protection on Ethernet PHY power rails and RS-485 data lines exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response clamping device placed after primary gas discharge tube (GDT) to limit let-through voltage. Use Value: 328 V clamping voltage ensures compliance with ITU-T K.21 basic protection level for outdoor telecom equipment. |
Use Scenario: Input-stage surge suppression in AC-DC adapters for smart home devices subjected to mains-borne transients. IC Role / Device Role / Timing Role: Bidirectional TVS across bulk capacitor terminals to absorb differential-mode surges before rectification stage. Use Value: AEC-Q101 qualification and RoHS/halogen-free construction support global regulatory compliance and supply chain sustainability goals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220CA | Lower peak pulse power (600 W), same 185 V VWM and bidirectional configuration, SMB package (smaller footprint) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 compliance without derating | Select when board space is constrained and surge threat level is Class 2 or lower |
| 1.5KE220CA | Through-hole TO-204AA (DO-41) package, identical 185 V VWM and 328 V VC, but higher RθJA (100 °C/W) | Requires manual or wave soldering; less suitable for automated SMT lines and high-density layouts | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMBJ220CA and 1.5KE220CA, the 1.5SMC220CAHE3_A/I provides superior surge handling (1500 W vs. 600 W/1500 W), SMT-ready DO-214AB packaging, and AEC-Q101 qualification - making it the preferred choice for production automotive and industrial designs requiring robust, automated, and certified protection.
Availability
1.5SMC220CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply and long-term lifecycle assurance.
Supply support for 1.5SMC220CAHE3_A/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 and application-specific performance.
The 1.5SMC Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for fast response, stable clamping, and AEC-Q101-compliant ruggedness in harsh environments.
FAQ
What is the clamping voltage of the 1.5SMC220CAHE3_A/I under maximum rated surge current?
The 1.5SMC220CAHE3_A/I clamps to 328 V when subjected to its specified peak pulse current of 4.6 A (10/1000 μs waveform). This value is measured per Figure 1 in Vishay document 88303 and reflects the maximum voltage imposed on protected circuitry during worst-case transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the 1.5SMC220CAHE3_A/I suitable for automotive applications?
Yes, the 1.5SMC220CAHE3_A/I is AEC-Q101 qualified (indicated by the "HE3" suffix and "_A" revision code), tested for temperature cycling, humidity bias, and mechanical shock per automotive reliability standards. It is explicitly recommended for sensor units, body electronics, and infotainment interfaces where transient immunity and long-term stability are mandatory.
What does the "CA" suffix indicate in 1.5SMC220CAHE3_A/I?
The "CA" suffix in 1.5SMC220CAHE3_A/I denotes a bidirectional configuration - meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., "A"), no cathode band marking is present, and electrical characteristics apply identically in either direction.
What is the thermal resistance of the 1.5SMC220CAHE3_A/I, and how does it affect layout?
The 1.5SMC220CAHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. To maintain safe junction temperatures under repeated surges, PCB layout must allocate sufficient copper area and avoid excessive trace length between the device and ground/power planes.
How does the 1.5SMC220CAHE3_A/I differ from the 1.5SMC220AHE3_A/I?
The 1.5SMC220CAHE3_A/I is bidirectional with symmetrical clamping, while the 1.5SMC220AHE3_A/I is unidirectional and features a cathode band marking. Their stand-off voltages differ: 185 V (CA) vs. 171 V (A), and clamping voltages are 328 V vs. 274 V respectively - making them non-interchangeable without circuit redesign and transient polarity analysis.
1.5SMC220CAHE3_A/I 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC220CAHE3_A/I FAQ
1.How can I place an order for 1.5SMC220CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC220CAHE3_A/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 1.5SMC220CAHE3_A/I reliable?
The price and inventory of 1.5SMC220CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC220CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC220CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC220CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC220CAHE3_A/I?
1.5SMC220CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC220CAHE3_A/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 1.5SMC220CAHE3_A/I?
For technical support, including 1.5SMC220CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC220CAHE3_A/I requirements.
6.How does Aetrix verify that 1.5SMC220CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC220CAHE3_A/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 1.5SMC220CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC220CAHE3_A/I?
All 1.5SMC220CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC220CAHE3_A/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 1.5SMC220CAHE3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC220CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC220CAHE3_A/I Tags
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