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Vishay General Semiconductor - Diodes Division 1.5SMC220AHE3_A/I
- Part No.:
- 1.5SMC220AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC220AHE3_A/I.pdf
- Description:
- TVS DIODE 185VWM 328VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,290
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Product details
Overview
1.5SMC220AHE3_A/I 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 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 μA reverse leakage at rated VWM. It is AEC-Q101 qualified and used in automotive power supply rail protection.
For engineers reviewing the 1.5SMC220AHE3_A/I datasheet, 1.5SMC220AHE3_A/I pinout, 1.5SMC220AHE3_A/I application, or 1.5SMC220AHE3_A/I equivalent, key selection criteria include clamping voltage (VC = 328 V), breakdown voltage range (209–231 V), unidirectional polarity, SMC (DO-214AB) package compatibility, and AEC-Q101 qualification status for automotive-grade reliability.
Technical Context
This TVS diode operates as a voltage-clamping device that enters avalanche conduction when transient voltage exceeds its breakdown threshold (VBR = 209–231 V). Its low incremental surge resistance ensures stable clamping performance during repetitive 10/1000 μs surges up to 1500 W, with thermal resistance RθJA = 75 °C/W enabling reliable operation on standard 8.0 mm × 8.0 mm copper pads.
The device uses a glass-passivated silicon junction for robust surge handling and fast response time (<1 ns), and its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards. Polarity is marked by a cathode band, confirming unidirectional functionality and preventing reverse-bias misapplication in DC power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 185 V - Maximum continuous reverse operating voltage before leakage exceeds 1 μA; defines safe DC blocking level. |
| VBR min/max | 209 V / 231 V - Breakdown occurs within this range at 1 mA test current; sets precise overvoltage trip point. |
| VC @ IPPM | 328 V - Clamped voltage at 4.6 A peak pulse current; determines maximum protected-circuit stress during surge. |
| PPPM | 1500 W - Peak pulse power handling capability with 10/1000 μs waveform; supports IEC 61000-4-5 Level 4 compliance. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated placement. |
| Qualification | AEC-Q101 qualified - Validated for automotive applications per stress-test requirements including HTGB, HTRB, and TCT. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads; cathode indicated by a visible band on the body; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Anode-side connection in reverse-biased protection configuration | Connected to protected line (e.g., +12 V rail); conducts avalanche current to ground during overvoltage events. |
| Anode | Ground reference terminal | Connected to system ground plane; completes clamping path and must be low-inductance for effective transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Supports high-energy transients per IEC 61000-4-5 without degradation; suitable for 12 V/24 V automotive load-dump protection. |
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, humidity bias, and high-temperature reverse bias testing. |
| Glass passivated junction | Enhances long-term reliability and surge endurance versus epoxy-passivated alternatives; reduces parameter drift over life. |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow assembly without moisture-related popcorn failure or delamination. |
| Low clamping ratio (VC/VBR ≈ 1.44) | Minimizes overvoltage exposure to downstream ICs; critical for protecting 3.3 V/5 V logic interfaces powered from protected rails. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against ISO 7637-2 pulse 5a (load dump) and ISO 16750-2 surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and chassis ground to clamp transients before they reach DC-DC converters and microcontrollers. Use Value: Limits voltage to ≤328 V during 1500 W surges, preventing latch-up or permanent damage to downstream 36 V-rated power management ICs. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors exposed to ESD and inductive switching noise. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted at connector interface to shunt fast transients before reaching precision op-amps or ADC front-ends. Use Value: Sub-μA leakage at 185 V ensures no loading of high-impedance sensor outputs; fast response preserves signal integrity during 8 kV contact ESD events. |
| Telecom DC Power Input Protection | Consumer Power Adapter Output Protection |
|
Use Scenario: Securing -48 V telecom rectifier outputs against lightning-induced surges entering central office equipment. IC Role / Device Role / Timing Role: Unidirectional TVS installed on primary side of isolated DC-DC stage to absorb common-mode energy before isolation barrier. Use Value: 328 V clamping prevents breakdown of upstream MOSFETs and gate drivers; AEC-Q101 grade adds margin for extended field life in harsh environments. |
Use Scenario: Adding secondary-side surge immunity to USB-C PD adapters supplying 20 V to laptops and monitors. IC Role / Device Role / Timing Role: Final-stage TVS on regulated output rail to suppress coupling from internal switching noise or external cable-borne transients. Use Value: 185 V stand-off avoids conduction during normal 20 V operation; 1500 W rating handles accidental 24 V overvoltage events without failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220AHE3/A | Lower peak pulse power (600 W), same VWM (185 V), SMB (DO-214AA) package (smaller footprint, higher RθJA). | Not suitable for IEC 61000-4-5 Level 4; limited to lower-energy surges in space-constrained consumer designs. | Select when board area is critical and surge threat level is ≤600 W; verify thermal derating on small pads. |
| 1.5KE220A | Through-hole TO-204AE (DO-41) package, identical electrical specs (VWM, VBR, VC, PPPM), no AEC-Q101 qualification. | Requires wave soldering; not validated for automotive temperature cycling or vibration; lacks MSL-1 reflow compatibility. | Choose for legacy through-hole production or cost-sensitive industrial prototypes where AEC-Q101 is not mandated. |
Compared with SMBJ220AHE3/A and 1.5KE220A, the 1.5SMC220AHE3_A/I uniquely combines 1500 W surge capacity, AEC-Q101 qualification, and SMC surface-mount compatibility-making it the only option qualified for high-reliability automotive power rail protection requiring both high energy handling and automated assembly.
Availability
1.5SMC220AHE3_A/I is available at Aetrix Electronics and suitable for automotive ECU power protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply across multi-year production cycles.
Supply support for 1.5SMC220AHE3_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, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series was developed to deliver high-power, surface-mount transient suppression for automotive, industrial, and telecom systems where space, surge robustness, and qualification compliance are critical design constraints.
FAQ
What is the clamping voltage of the 1.5SMC220AHE3_A/I under maximum rated surge current?
The 1.5SMC220AHE3_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 and guaranteed per Vishay's datasheet Document Number 88303, page 2, and represents the maximum voltage seen by downstream circuitry during worst-case transient events.
Is the 1.5SMC220AHE3_A/I suitable for automotive applications?
Yes, the 1.5SMC220AHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use with suffix "HE3" and revision code "A". It has passed stress tests including high-temperature reverse bias, temperature cycling, and humidity bias, making it appropriate for engine control units, body electronics, and ADAS power supplies.
What does the "_A/I" suffix mean in 1.5SMC220AHE3_A/I?
The "_A" denotes the AEC-Q101 qualification grade for the 1.5SMC220AHE3 series, while "/I" specifies packaging in 13-inch diameter plastic tape and reel with 3500 units per reel. This format aligns with Vishay's ordering nomenclature in Document Number 88303, page 3, Table "ORDERING INFORMATION".
How does the 1.5SMC220AHE3_A/I differ from bidirectional versions like 1.5SMC220CA?
The 1.5SMC220AHE3_A/I is unidirectional and features a cathode band for polarity-sensitive placement on positive DC rails. In contrast, 1.5SMC220CA is bidirectional with no polarity marking and symmetric clamping in both directions-making it suitable for AC lines or differential signal pairs but unsuitable for single-polarity power rail protection where reverse conduction must be blocked.
What is the thermal resistance of the 1.5SMC220AHE3_A/I, and how does it affect layout?
The 1.5SMC220AHE3_A/I 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 terminal. To maintain safe junction temperatures during repetitive surges, PCB layout must provide adequate copper area and avoid thermal bottlenecks-especially critical in automotive under-hood applications where ambient temperatures exceed 85 °C.
1.5SMC220AHE3_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:
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC220AHE3_A/I FAQ
1.How can I place an order for 1.5SMC220AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC220AHE3_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 1.5SMC220AHE3_A/I reliable?
The price and inventory of 1.5SMC220AHE3_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 1.5SMC220AHE3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC220AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC220AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC220AHE3_A/I?
1.5SMC220AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC220AHE3_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 1.5SMC220AHE3_A/I?
For technical support, including 1.5SMC220AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC220AHE3_A/I requirements.
6.How does Aetrix verify that 1.5SMC220AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC220AHE3_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 1.5SMC220AHE3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC220AHE3_A/I?
All 1.5SMC220AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC220AHE3_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 1.5SMC220AHE3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC220AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC220AHE3_A/I Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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