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Vishay General Semiconductor - Diodes Division 1.5SMC220AHM3_A/H
- Part No.:
- 1.5SMC220AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC220AHM3_A/H.pdf
- Description:
- TVS DIODE 185VWM 328VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,454
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Product details
Overview
1.5SMC220AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, rated for 220 V breakdown voltage (VBR = 209–231 V at IT = 1 mA), 1500 W peak pulse power (10/1000 μs), and clamping voltage of 328 V at 4.6 A peak pulse current - designed to protect automotive-grade power rails and signal lines against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5SMC220AHM3_A/H datasheet, 1.5SMC220AHM3_A/H pinout, 1.5SMC220AHM3_A/H application, or 1.5SMC220AHM3_A/H equivalent, this AEC-Q101 qualified, halogen-free, RoHS-compliant TVS offers verified surge immunity up to 200 A IFSM, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive ECUs and industrial motor drives.
Technical Context
This unidirectional TVS operates by avalanche breakdown above its reverse standoff voltage (VWM = 185 V), delivering fast sub-nanosecond response to transient overvoltages while maintaining low leakage (<1 μA at VWM). Its glass-passivated junction ensures stable VBR tolerance (±5%) and robust thermal performance up to TJ = 150 °C.
The device uses a single-junction silicon p-n structure with cathode-band polarity marking, optimized for automated placement on 8.0 mm × 8.0 mm copper pads. Thermal resistance is RθJA = 75 °C/W (typ.) and RθJL = 15 °C/W (typ.), enabling reliable operation under repetitive 0.01% duty-cycle surges without derating below 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 209 V / 231 V at 1 mA - defines precise avalanche initiation threshold for repeatable clamping behavior |
| VWM | 185 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 328 V at 4.6 A - clamped voltage during 10/1000 μs surge, limiting downstream IC stress |
| PPPM | 1500 W - peak transient power handling capability per standard waveform, validated for automotive load-dump immunity |
| IFSM | 200 A - non-repetitive forward surge rating (8.3 ms half-sine), supporting high-energy inductive turn-off events |
| TJ max | 150 °C - maximum junction temperature enabling use in under-hood automotive environments |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 (260 °C reflow peak), and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to system ground or low-side return path in unidirectional protection configurations |
| Cathode (banded end) | Avalanche clamping terminal | Connected to protected line (e.g., 24 V rail); conducts when transient exceeds VWM, shunting energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets automotive environmental compliance requirements without compromising surge robustness |
| 1500 W peak pulse power (10/1000 μs) | Withstands ISO 7637-2 Pulse 5a/b load-dump transients in 12 V/24 V vehicle systems |
| Low clamping ratio (VC/VBR ≈ 1.48) | Minimizes voltage overshoot during clamping, reducing stress on downstream MOSFETs and microcontrollers |
| Glass-passivated junction | Ensures long-term parameter stability and low leakage drift across temperature and lifetime |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control units (ECUs) against ISO 7637-2 load-dump transients up to 60 V for 400 ms. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input to clamp surges before they reach regulation circuitry. Use Value: Limits peak voltage to ≤328 V during 1500 W transients, preventing damage to 40 V-rated input capacitors and gate drivers. |
Use Scenario: Safeguarding gate drive signals in three-phase IGBT inverters exposed to inductive kickback from motor windings. IC Role / Device Role / Timing Role: TVS mounted across gate-source terminals of high-side IGBTs to suppress dv/dt-induced false triggering. Use Value: Sub-nanosecond response clamps spikes within 10 ns, maintaining gate integrity and avoiding shoot-through failure modes. |
| Telecom Line Interface Protection | Consumer Appliance Power Supply Input |
Use Scenario: Shielding RS-485 transceiver power pins in outdoor base stations from lightning-induced surges on 48 V PoE-derived rails. IC Role / Device Role / Timing Role: Primary-level TVS on +48 V input, upstream of DC-DC isolation, absorbing bulk surge energy before secondary-side protection. Use Value: 185 V VWM allows normal operation during 48 V nominal + 20% tolerance, while 328 V VC stays below 400 V isolation barrier limits. |
Use Scenario: Guarding AC-DC adapter primary-side rectifier outputs in smart home hubs against mains-borne surges (IEC 61000-4-5 Level 3). IC Role / Device Role / Timing Role: Secondary TVS on 350 V DC bus, complementing MOV-based front-end protection to handle fast-rising ringwave transients. Use Value: 220 V VBR provides margin above 350 V × 0.707 = 248 V peak, ensuring no premature conduction during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220AHE3/A | Same VBR range (209–231 V) but SMB package (DO-214AA); lower PPPM = 600 W; RθJA = 90 °C/W | Lower power handling suits space-constrained consumer PCBs; not AEC-Q101 qualified | Select when board area is limited and surge energy is ≤600 W (e.g., USB-C PD adapters) |
| 1.5KE220A | Through-hole DO-201 package; identical electrical specs but higher RθJA = 100 °C/W; no AEC-Q101 or halogen-free certification | Legacy replacement for manual assembly or high-vibration environments where SMT reliability is secondary | Choose only for legacy repair or prototyping where reflow compatibility is not required |
Compared with SMBJ220AHE3/A and 1.5KE220A, the 1.5SMC220AHM3_A/H delivers superior automotive-grade reliability via AEC-Q101 qualification, halogen-free construction, and 1500 W surge capacity in a compact SMC footprint - making it the optimal choice for production ECU designs requiring zero field returns due to transient failure.
Availability
1.5SMC220AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial motor drives, telecom infrastructure power supplies, and consumer appliance mainboards requiring stable component supply with full traceability and lifecycle continuity.
Supply support for 1.5SMC220AHM3_A/H 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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1.5SMC Series was engineered specifically for high-energy transient suppression in harsh environments, with emphasis on AEC-Q101 compliance, tight VBR tolerance, and consistent clamping performance across temperature and lifetime.
FAQ
What is the exact breakdown voltage range for 1.5SMC220AHM3_A/H?
The 1.5SMC220AHM3_A/H has a guaranteed breakdown voltage (VBR) range of 209 V to 231 V at test current IT = 1 mA, per Vishay Document 88303, page 2. This ±5% tolerance ensures predictable clamping onset in automotive and industrial surge protection circuits where precise voltage thresholds are critical for system-level coordination with downstream overvoltage detectors.
Is 1.5SMC220AHM3_A/H AEC-Q101 qualified?
Yes, the 1.5SMC220AHM3_A/H is AEC-Q101 qualified, as confirmed by the HM3 suffix and ordering information footnote (1) in Vishay Document 88303, page 3. This qualification covers stress tests including high-temperature operating life, temperature cycling, and unbiased highly accelerated stress testing - validating suitability for under-hood automotive applications such as engine control modules and battery management systems.
What does the "_A/H" suffix mean in 1.5SMC220AHM3_A/H?
The "_A/H" suffix in 1.5SMC220AHM3_A/H indicates two attributes: "A" denotes AEC-Q101 qualification for the 1.5SMC6.8A to 1.5SMC220A voltage range (per doc p.3 note 1), and "H" specifies packaging in 7-inch plastic tape-and-reel format with 850 units per reel (per Ordering Information table, p.3). The "HM3" portion confirms halogen-free, RoHS-compliant construction.
What is the clamping voltage of 1.5SMC220AHM3_A/H at its rated peak pulse current?
The 1.5SMC220AHM3_A/H clamps to a maximum of 328 V at its peak pulse current (IPPM) of 4.6 A under the standard 10/1000 μs waveform (Document 88303, p.2). This VC value directly determines the maximum voltage imposed on protected circuitry during surge events and must be compared against the absolute maximum ratings of downstream components like DC-DC controllers or gate drivers.
Can 1.5SMC220AHM3_A/H be used in bidirectional applications?
No, 1.5SMC220AHM3_A/H is strictly unidirectional, as indicated by the "A" suffix (not "CA") and cathode-band marking per mechanical data. For bidirectional protection at 220 V, the correct variant is 1.5SMC220CAHM3_A/H - which features symmetrical breakdown in both directions and no polarity marking. Using the unidirectional 1.5SMC220AHM3_A/H in AC-coupled or floating signal paths risks reverse-bias failure.
1.5SMC220AHM3_A/H 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC220AHM3_A/H FAQ
1.How can I place an order for 1.5SMC220AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC220AHM3_A/H 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 1.5SMC220AHM3_A/H reliable?
The price and inventory of 1.5SMC220AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC220AHM3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC220AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC220AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC220AHM3_A/H?
1.5SMC220AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC220AHM3_A/H 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 1.5SMC220AHM3_A/H?
For technical support, including 1.5SMC220AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC220AHM3_A/H requirements.
6.How does Aetrix verify that 1.5SMC220AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC220AHM3_A/H 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 1.5SMC220AHM3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC220AHM3_A/H?
All 1.5SMC220AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC220AHM3_A/H, 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 1.5SMC220AHM3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC220AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC220AHM3_A/H Tags
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