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Vishay General Semiconductor - Diodes Division 1.5SMC220CA-E3/9AT
- Part No.:
- 1.5SMC220CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC220CA-E3/9AT.pdf
- Description:
- TVS DIODE 185VWM 328VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:5,404
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Product details
Overview
1.5SMC220CA-E3/9AT 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 ±5% breakdown tolerance (209–231 V at 1 mA). It is used to protect automotive sensor interfaces, industrial I/O ports, and telecom line cards against lightning-induced transients and inductive switching spikes.
For engineers reviewing the 1.5SMC220CA-E3/9AT datasheet, 1.5SMC220CA-E3/9AT pinout, 1.5SMC220CA-E3/9AT application, or 1.5SMC220CA-E3/9AT equivalent, key selection criteria include bidirectional clamping capability, SMC (DO-214AB) package compatibility, 1500 W surge rating, thermal resistance (RθJA = 75 °C/W), and AEC-Q101 qualification eligibility via HE3 suffix variants.
Technical Context
This device operates as a voltage-clamped crowbar during transient overvoltage events, leveraging an avalanche breakdown mechanism across both polarities. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 μA at 185 V), while its low incremental surge resistance enables rapid energy dissipation without thermal runaway.
The 1.5SMC220CA-E3/9AT is rated for continuous operation from –65 °C to +150 °C junction temperature and meets J-STD-020 MSL Level 1 (260 °C reflow peak). Its SMC package supports automated placement and provides UL 94 V-0 flammability compliance with matte tin-plated leads solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains single high-energy surges common in automotive load-dump and telecom lightning tests |
| Stand-off Voltage (VWM) | 185 V - maximum continuous reverse voltage before significant leakage; sets operating margin below clamping |
| Breakdown Voltage (VBR) | 209–231 V at 1 mA - tight ±5% tolerance ensures predictable turn-on across production lots |
| Clamping Voltage (VC) | 328 V at 4.6 A - defines worst-case protected-circuit voltage during full-rated surge |
| Junction Temperature Range | –65 °C to +150 °C - supports under-hood automotive and industrial ambient environments |
| Package | SMC (DO-214AB) - industry-standard 2-pin surface-mount outline with 7.75 mm × 6.22 mm footprint |
| Thermal Resistance (RθJA) | 75 °C/W - determines required PCB copper area (0.31" × 0.31") for safe 6.5 W steady-state dissipation |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads; polarity-unmarked for bidirectional operation; UL 94 V-0 compliant; 0.320" (8.13 mm) max length, 0.246" (6.22 mm) max width.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during positive transient | One of two symmetrical terminals; no marking distinguishes anode/cathode in bidirectional configuration |
| Cathode | Current entry terminal during negative transient | Electrically identical to Anode; device functions identically in either orientation due to symmetric structure |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 1500 W peak pulse rating | Meets IEC 61000-4-5 Level 4 (4 kV surge) requirements when properly mounted on 8 mm × 8 mm copper pads |
| Low clamping ratio (VC/VBR ≈ 1.5) | Minimizes stress on downstream ICs by limiting protected-line voltage rise during surge events |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking-reduces manufacturing overhead |
| AEC-Q101 qualification path | HE3/HM3 variants available for automotive applications requiring validated reliability and lifetime testing |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Ports |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and jump-start transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between signal line and ground, absorbing >100 A surge currents without failure. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V interface ICs by limiting line voltage to ≤328 V during 1500 W surges. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to inductive kickback from solenoids and contactors. IC Role / Device Role / Timing Role: Primary overvoltage shunt on 24 V DC input channels, activated within <1 ns to divert surge energy before controller GPIOs are stressed. Use Value: Enables robust field deployment in factory automation where repeated 1 kV/500 A transients occur without requiring system shutdown or recalibration. |
| Telecom Line Interface | Power Supply Input Stage |
Use Scenario: Front-end protection for Ethernet PHYs and DSL line drivers subjected to lightning-induced surges on outdoor copper pairs. IC Role / Device Role / Timing Role: First-stage TVS in multi-tier protection scheme, clamping common-mode transients before gas discharge tube or MOV stages. Use Value: Provides sub-100 ps response to fast-rising lightning surges while maintaining <1 μA leakage at 185 V for low-power standby compliance. |
Use Scenario: Secondary surge suppression on 24–48 V DC power rails feeding motor drives and embedded controllers in HVAC systems. IC Role / Device Role / Timing Role: Parallel-connected clamping device across bulk capacitor input, triggered only during overvoltage excursions exceeding nominal rail. Use Value: Extends electrolytic capacitor lifetime by preventing voltage overshoot beyond 350 V, reducing ripple-induced thermal stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppressor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220CA | Lower peak power (600 W), same VWM/VC, SMB package (smaller footprint, higher RθJA) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 | Select when board space is constrained and surge threat level is ≤600 W (e.g., consumer-grade USB ports) |
| 1.5KE220CA | Through-hole TO-218 package, identical electrical specs but incompatible with SMT assembly | Requires wave soldering or hand-soldering; not compatible with high-volume pick-and-place | Choose only for legacy through-hole designs or prototyping where rework flexibility outweighs automation needs |
Compared with 1.5SMC220CA-E3/9AT, SMBJ220CA trades surge capacity for compactness, while 1.5KE220CA retains full electrical performance but eliminates SMT manufacturability-making 1.5SMC220CA-E3/9AT the optimal choice for automated production of automotive and industrial boards requiring 1500 W protection in SMC form factor.
Availability
1.5SMC220CA-E3/9AT is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC development, and telecom infrastructure projects requiring stable component supply, RoHS-compliant sourcing, and long-term lifecycle support.
Supply support for 1.5SMC220CA-E3/9AT 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 high-power handling.
The 1.5SMC Series was engineered for robust, surface-mount transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where repeatable clamping, low leakage, and AEC-Q101 readiness are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC220CA-E3/9AT under full-rated surge conditions?
The 1.5SMC220CA-E3/9AT clamps to a maximum of 328 V when subjected to its rated 4.6 A peak pulse current (10/1000 μs waveform). This value is measured per Figure 1 in the Vishay datasheet 88303 and reflects worst-case voltage seen by protected circuitry during a 1500 W transient event. The 1.5SMC220CA-E3/9AT maintains this clamping performance across its full operating temperature range (–65 °C to +150 °C).
Is the 1.5SMC220CA-E3/9AT suitable for automotive applications?
The 1.5SMC220CA-E3/9AT itself is RoHS-compliant and commercial-grade; however, Vishay offers AEC-Q101 qualified versions under ordering codes like 1.5SMC220CAHE3_A. While the 1.5SMC220CA-E3/9AT shares identical electrical and thermal specs, formal automotive qualification requires the HE3 suffix. For non-safety-critical automotive subsystems (e.g., infotainment power rails), the 1.5SMC220CA-E3/9AT is widely deployed-but safety-critical modules require verified AEC-Q101 documentation.
How does the bidirectional design of the 1.5SMC220CA-E3/9AT affect PCB layout?
The 1.5SMC220CA-E3/9AT has no polarity marking and functions identically in either orientation, eliminating orientation-dependent routing errors during layout and assembly. This simplifies placement on differential lines (e.g., RS-485, CAN), AC-coupled sensors, or floating grounds. Unlike unidirectional TVS diodes, the 1.5SMC220CA-E3/9AT requires no cathode band alignment-reducing inspection time and misplacement risk in high-speed SMT lines.
What is the maximum printed circuit board copper area required for thermal management of the 1.5SMC220CA-E3/9AT?
Vishay specifies that the 1.5SMC220CA-E3/9AT must be mounted on minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal to achieve its rated 1500 W peak pulse power and 6.5 W steady-state dissipation. Reducing pad size increases junction temperature and de-rates surge capability-per Figure 2 in datasheet 88303. For continuous 6.5 W operation, thermal vias to inner layers or a solid ground plane are strongly recommended to maintain RθJA near 75 °C/W.
Does the 1.5SMC220CA-E3/9AT have a specified junction capacitance value?
No junction capacitance (CJ) value is published for the 1.5SMC220CA-E3/9AT in the Vishay 88303 datasheet. Capacitance curves (Figure 4) apply only to unidirectional 1.5SMCxxA devices-not bidirectional CA variants. For high-frequency signal lines (e.g., USB, HDMI), designers should verify impedance impact empirically or select low-capacitance TVS families (e.g., TPSMD series) where CJ is explicitly characterized. The 1.5SMC220CA-E3/9AT is optimized for power/signal-line surge-not RF signal integrity.
1.5SMC220CA-E3/9AT 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-E3/9AT FAQ
1.How can I place an order for 1.5SMC220CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC220CA-E3/9AT 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-E3/9AT reliable?
The price and inventory of 1.5SMC220CA-E3/9AT 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-E3/9AT is usually 5 days.
3.What payment methods are accepted for 1.5SMC220CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC220CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC220CA-E3/9AT?
1.5SMC220CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC220CA-E3/9AT 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-E3/9AT?
For technical support, including 1.5SMC220CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC220CA-E3/9AT requirements.
6.How does Aetrix verify that 1.5SMC220CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All 1.5SMC220CA-E3/9AT 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-E3/9AT meets industry standards.
7.What is the process for return or replacement of 1.5SMC220CA-E3/9AT?
All 1.5SMC220CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC220CA-E3/9AT, 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-E3/9AT part is unused and in its original packaging.
Return procedure for 1.5SMC220CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC220CA-E3/9AT Tags
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