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Vishay General Semiconductor - Diodes Division 1.5SMC180AHM3_A/I
- Part No.:
- 1.5SMC180AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC180AHM3_A/I.pdf
- Description:
- TVS DIODE 154VWM 246VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,463
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Product details
Overview
1.5SMC180AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 µs), 154 V standoff voltage (VWM), and clamping at 246 V (VC) under 6.1 A peak pulse current. It protects automotive-grade power rails and sensor interfaces against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5SMC180AHM3_A/I datasheet, 1.5SMC180AHM3_A/I pinout, 1.5SMC180AHM3_A/I application, or 1.5SMC180AHM3_A/I equivalent, this part delivers AEC-Q101 qualification, halogen-free RoHS compliance, and verified clamping performance for high-reliability 12 V–48 V DC systems in automotive ECUs and industrial motor controllers.
Technical Context
The 1.5SMC180AHM3_A/I operates as a unidirectional avalanche diode with glass-passivated junction, designed to clamp transient overvoltages above its 171–189 V breakdown range (VBR at 1 mA) while maintaining low leakage (<1 µA at 154 V). Its thermal resistance (RθJA = 75 °C/W) and junction temperature limit (TJ = 150 °C) support operation on standard PCB copper pads without active cooling.
It meets J-STD-020 MSL Level 1 (peak reflow ≤260 °C), uses matte tin-plated leads, and is rated for 200 A non-repetitive forward surge (8.3 ms half-sine). The device exhibits a +0.108 %/°C temperature coefficient of VBR, ensuring stable clamping across automotive ambient ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 154 V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for normal circuit operation. |
| VBR (min/max) | 171 V / 189 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC @ IPPM | 246 V at 6.1 A - Clamped voltage under 10/1000 µs surge; defines worst-case stress on downstream ICs. |
| PPPM | 1500 W - Peak pulse power handling per 10/1000 µs waveform; supports high-energy lightning surge immunity. |
| IFSM | 200 A - Single half-sine surge rating (8.3 ms); validates robustness against motor commutation spikes. |
| TJ max | 150 °C - Maximum junction temperature; enables use in under-hood automotive environments. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 8.0 mm × 8.0 mm copper pad requirement for thermal derating. |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal (reverse bias) | Connected to protected line side; conducts during positive transients when cathode is at higher potential. |
| Cathode | Current exit terminal (reverse bias) | Marked with band; tied to system ground or lower-potential rail to shunt surge energy away from load. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD; supports PPAP documentation. |
| Halogen-free & RoHS-compliant | Meets JEDEC J-STD-20 and EU RoHS Directive 2011/65/EU; eliminates brominated flame retardants for safer end-of-life processing. |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV surge) on 2 Ω source impedance without degradation. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., <1 ns rise time), improving protection margin for sensitive gate drivers. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profiles up to 260 °C peak, eliminating bake requirements pre-assembly. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 12 V battery-supplied ECU power input exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND to clamp transients >154 V before they reach LDOs and microcontrollers. Use Value: Limits clamped voltage to 246 V, preserving 30 V-rated input capacitors and preventing latch-up in 5 V logic supplies. |
Use Scenario: CAN or LIN bus lines in engine control modules subjected to ISO 16750-2 electrical disturbances. IC Role / Device Role / Timing Role: Secondary protection stage after common-mode chokes, absorbing differential-mode surges exceeding 154 V. Use Value: Fast response (<1 ns) and low VC prevent data corruption and transceiver damage during 10/1000 µs coupled surges. |
| Motor Drive Gate Driver Protection | Telecom DC Power Input Protection |
Use Scenario: High-side MOSFET gate drive circuits in BLDC inverters experiencing shoot-through-induced voltage spikes. IC Role / Device Role / Timing Role: TVS connected between gate and source to clamp Miller-induced overshoot during switching transitions. Use Value: 246 V clamping prevents gate oxide breakdown in 200 V-rated SiC MOSFETs operating at 100 kHz PWM. |
Use Scenario: 48 V DC input of PoE-powered base stations exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary front-end suppressor on DC feed line prior to DC-DC converter input filter. Use Value: 1500 W rating handles 10/1000 µs surges up to 4 kV (IEC 61000-4-5), reducing need for multi-stage protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180A | Lower PPPM (600 W), same VWM (154 V), SMB package (smaller footprint, higher RθJA). | Limited to lower-energy transients (e.g., IEC 61000-4-4 EFT); unsuitable for ISO 7637-2 Pulse 5a. | Select when board space is constrained and surge energy is ≤600 W; verify thermal margin on 5.0 mm × 5.0 mm pads. |
| 1.5KE180A | Through-hole TO-204AA (DO-41), identical VWM/VC/PPPM, but no AEC-Q101 or MSL Level 1 rating. | Not suitable for automated SMT assembly or automotive reflow profiles; requires wave soldering. | Choose only for legacy through-hole designs or prototyping where AEC-Q101 compliance is not required. |
Compared with 1.5SMC180AHM3_A/I, SMBJ180A trades surge capacity for compactness, while 1.5KE180A retains full electrical specs but lacks surface-mount readiness and automotive qualification-making 1.5SMC180AHM3_A/I the sole choice for production-grade AEC-Q101 SMT deployments.
Availability
1.5SMC180AHM3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial motor drives, and telecom power supply inputs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1.5SMC180AHM3_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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1.5SMC Series was engineered specifically for robust, surface-mount transient suppression in harsh environments-emphasizing AEC-Q101 compliance, high surge capability, and manufacturability in high-volume SMT lines.
FAQ
What is the clamping voltage of the 1.5SMC180AHM3_A/I under maximum rated surge current?
The 1.5SMC180AHM3_A/I clamps at 246 V when subjected to its specified peak pulse current of 6.1 A (10/1000 µs waveform). This value is measured and guaranteed per Vishay's datasheet (Document Number 88303, page 2), and defines the maximum voltage seen by downstream circuitry during a full-rated transient event. Designers must ensure all protected components have voltage ratings exceeding 246 V.
Is the 1.5SMC180AHM3_A/I qualified for automotive applications?
Yes, the 1.5SMC180AHM3_A/I carries AEC-Q101 qualification, confirmed by its HM3 suffix and documentation in Vishay's 1.5SMC Series datasheet (Revision 09-Mar-2026). It has passed stress tests including high-temperature operating life, temperature cycling, and electrostatic discharge-making it suitable for under-hood and chassis-mounted automotive electronics per ISO/TS 16949 requirements.
What does the "HM3" suffix indicate in 1.5SMC180AHM3_A/I?
The "HM3" suffix in 1.5SMC180AHM3_A/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. The "H" indicates 7-inch tape-and-reel packaging (850 units per reel), and "I" specifies 13-inch tape-and-reel (3500 units per reel). This ordering code ensures material compliance, automotive reliability, and SMT process compatibility per J-STD-020.
Can the 1.5SMC180AHM3_A/I be used in bidirectional configurations?
No, the 1.5SMC180AHM3_A/I is strictly unidirectional, as confirmed by its "A" suffix and cathode-band marking. Bidirectional variants use the "CA" suffix (e.g., 1.5SMC180CA). Using this part in bidirectional applications would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit.
What is the thermal resistance and recommended pad layout for the 1.5SMC180AHM3_A/I?
The 1.5SMC180AHM3_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, as specified in Vishay's datasheet (page 2). Deviation from this pad size reduces power derating capability; smaller pads increase junction temperature and risk thermal runaway during repetitive surges.
1.5SMC180AHM3_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):
- 154V
- Voltage - Breakdown (Min):
- 171V
- Voltage - Clamping (Max) @ Ipp:
- 246V
- Current - Peak Pulse (10/1000µs):
- 6.1A
- 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)
1.5SMC180AHM3_A/I FAQ
1.How can I place an order for 1.5SMC180AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC180AHM3_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 1.5SMC180AHM3_A/I reliable?
The price and inventory of 1.5SMC180AHM3_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 1.5SMC180AHM3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC180AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC180AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC180AHM3_A/I?
1.5SMC180AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC180AHM3_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 1.5SMC180AHM3_A/I?
For technical support, including 1.5SMC180AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC180AHM3_A/I requirements.
6.How does Aetrix verify that 1.5SMC180AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC180AHM3_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 1.5SMC180AHM3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC180AHM3_A/I?
All 1.5SMC180AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC180AHM3_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 1.5SMC180AHM3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC180AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC180AHM3_A/I Tags
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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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Toshiba Semiconductor and Storage
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Diodes Incorporated
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