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Vishay General Semiconductor - Diodes Division 1.5SMC220AHE3/57T
- Part No.:
- 1.5SMC220AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC220AHE3/57T.pdf
- Description:
- TVS DIODE 185VWM 328VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:4,882
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Product details
Overview
1.5SMC220AHE3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 220 V standoff voltage (VWM), 231 V maximum breakdown voltage (VBR), 328 V clamping voltage at 4.6 A peak pulse current, and 1500 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive ECUs, industrial sensor interfaces, and telecom line cards.
For engineers reviewing the 1.5SMC220AHE3/57T datasheet, 1.5SMC220AHE3/57T pinout, 1.5SMC220AHE3/57T application, or 1.5SMC220AHE3/57T equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, SMC (DO-214AB) package details, thermal resistance data, and real-world protection use cases - all confirmed against Vishay Document #88303 (Rev. 09-Mar-2026).
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable surge response. Its low incremental surge resistance and fast response time enable effective suppression of transients induced by inductive switching and lightning surges on DC rails and analog signal paths.
Rated for operation from −65 °C to +150 °C, it meets J-STD-020 MSL Level 1 and is AEC-Q101 qualified (HE3 suffix), making it suitable for under-hood automotive applications where thermal cycling and long-term reliability are critical. The device is not bidirectional - no internal symmetry or dual-junction structure is present.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 185 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown) | 209–231 V at 1 mA - Confirmed breakdown range ensures predictable turn-on during overvoltage events. |
| VC (Clamping) | 328 V at IPPM = 4.6 A - Peak voltage seen by protected circuit during 10/1000 μs transient; limits stress on downstream ICs. |
| PPPM | 1500 W - Sustains high-energy surges without failure when mounted per recommended 8.0 mm × 8.0 mm copper pads. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance under standard PCB layout; informs derating above 25 °C ambient. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in engine bay or industrial enclosures with elevated ambient. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per AEC specification. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. Cathode identified by molded band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Protected line connection point | Connected to the line requiring overvoltage clamping; reverse-biased during normal operation. |
| Anode (unmarked end) | Reference / ground return | Typically tied to system ground or low-impedance return path; completes clamping current loop during surge. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Withstands high-energy transients (e.g., ISO 7637-2 Pulse 5a) without degradation when properly heatsinked. |
| Glass-passivated junction | Ensures stable VBR over lifetime and immunity to moisture-induced parameter drift in humid environments. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body electronics where field failure is unacceptable. |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility up to 260 °C peak, simplifying SMT assembly. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns rise time), improving protection fidelity. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: Protecting 24 V supply rail in engine control unit (ECU) against load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and primary DC/DC converter input stage. Use Value: Clamps transients up to 328 V while limiting energy dissipation to within 1500 W rating - preventing MOSFET gate oxide rupture and regulator latch-up. |
Use Scenario: Shielding 4–20 mA current-loop analog inputs in PLC I/O modules from ESD and cable-coupled surges. IC Role / Device Role / Timing Role: TVS connected across signal and return lines upstream of precision op-amp input stage. Use Value: Sub-1 ns response time arrests fast transients before they propagate into sensitive instrumentation amplifiers, preserving measurement integrity. |
| Telecom DC Feeder Protection | Consumer Appliance Motor Drive Clamp |
Use Scenario: Safeguarding PoE-powered equipment front-end from lightning-induced surges on Ethernet DC feed lines. IC Role / Device Role / Timing Role: Primary clamping device on 48 V DC input rail prior to isolation transformer and DC/DC controller. Use Value: 185 V VWM provides sufficient margin above nominal 48 V rail while enabling full 1500 W surge handling - meeting IEC 61000-4-5 Level 4 requirements. |
Use Scenario: Suppressing inductive kickback from brushed DC motor commutation in smart home appliances. IC Role / Device Role / Timing Role: Mounted across motor terminals to clamp flyback voltage spikes during PWM switching. Use Value: 328 V VC limits back-EMF to non-destructive levels for MCU GPIOs and H-bridge drivers, extending system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220AHE3/52T | Lower PPPM (600 W), same VWM/VBR range, SMB (DO-214AA) package - 30% smaller footprint, lower thermal mass. | Better suited for space-constrained consumer PCBs; less robust for automotive load dump due to reduced surge capacity. | Select when board area is critical and surge energy is ≤600 W; verify thermal derating on small pads. |
| 1.5KE220AHE3/A | Through-hole (DO-201AD) package, identical electrical specs, higher RθJA (~50 °C/W on minimum pad), no AEC-Q101 qualification. | Used in legacy industrial power supplies where reworkability and manual assembly are prioritized over automotive compliance. | Choose only for non-automotive, through-hole designs requiring identical clamping but accepting larger footprint and no AEC validation. |
Compared with SMBJ220AHE3/52T and 1.5KE220AHE3/A, the 1.5SMC220AHE3/57T uniquely combines 1500 W surge capability, AEC-Q101 qualification, and SMC surface-mount packaging - making it the only option among the three validated for high-reliability automotive power rail protection with automated assembly support.
Availability
1.5SMC220AHE3/57T is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom DC feeder protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for 1.5SMC220AHE3/57T 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 performance.
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 mandatory.
FAQ
What is the clamping voltage of the 1.5SMC220AHE3/57T under a 10/1000 μs surge?
The 1.5SMC220AHE3/57T exhibits a maximum clamping voltage (VC) of 328 V when subjected to its rated peak pulse current of 4.6 A 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 components remain within their absolute maximum ratings.
Is the 1.5SMC220AHE3/57T AEC-Q101 qualified?
Yes, the 1.5SMC220AHE3/57T is AEC-Q101 qualified, as confirmed by the "HE3" suffix and explicitly stated in Vishay's 1.5SMC Series datasheet (Document #88303, Rev. 09-Mar-2026). This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and surge endurance - validating its suitability for automotive powertrain and body electronics applications.
What does the "57T" in 1.5SMC220AHE3/57T indicate?
The "57T" suffix denotes the packaging configuration: 7-inch diameter plastic tape-and-reel with 850 units per reel. This format is optimized for high-speed SMT placement equipment and aligns with industry-standard JEDEC carrier specifications - ensuring consistent feeding, minimal tape tension issues, and compatibility with automated pick-and-place systems used in volume manufacturing of automotive and industrial PCBs.
How does the 1.5SMC220AHE3/57T differ from bidirectional variants like 1.5SMC220CA?
The 1.5SMC220AHE3/57T is unidirectional, with polarity marked by a cathode band and intended for DC line protection where reverse conduction must be blocked. In contrast, 1.5SMC220CA is bidirectional - symmetrically clamping both polarities - and lacks polarity marking. Their VBR and VC values differ: the CA version has lower breakdown (209–231 V) and clamping (328 V) in each direction, but cannot replace the A version in circuits requiring reverse-blocking functionality.
What is the thermal resistance of the 1.5SMC220AHE3/57T, and how does it affect layout?
The 1.5SMC220AHE3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the minimum recommended 8.0 mm × 8.0 mm copper pads per terminal. This value directly impacts PCB layout: reducing pad size or omitting thermal vias increases RθJA, accelerating junction temperature rise during repetitive surges - potentially triggering thermal runaway. Layouts must follow Vishay's mounting recommendations to maintain rated 1500 W pulse capability.
1.5SMC220AHE3/57T 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:
- Discontinued at Digi-Key
- 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)
1.5SMC220AHE3/57T FAQ
1.How can I place an order for 1.5SMC220AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC220AHE3/57T 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 1.5SMC220AHE3/57T reliable?
The price and inventory of 1.5SMC220AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC220AHE3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC220AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC220AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC220AHE3/57T?
1.5SMC220AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC220AHE3/57T 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 1.5SMC220AHE3/57T?
For technical support, including 1.5SMC220AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC220AHE3/57T requirements.
6.How does Aetrix verify that 1.5SMC220AHE3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC220AHE3/57T 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 1.5SMC220AHE3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC220AHE3/57T?
All 1.5SMC220AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC220AHE3/57T, 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 1.5SMC220AHE3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC220AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC220AHE3/57T Tags
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