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Vishay General Semiconductor - Diodes Division 1.5SMC180AHM3_A/H
- Part No.:
- 1.5SMC180AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC180AHM3_A/H.pdf
- Description:
- TVS DIODE 154VWM 246VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,000
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Product details
Overview
1.5SMC180AHM3_A/H 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 features a 180 V standoff voltage (VWM), 246 V maximum clamping voltage (VC) at 6.1 A peak pulse current (IPPM), and 1500 W peak pulse power capability with a 10/1000 μs waveform - suitable for automotive-grade ESD and lightning transient suppression in DC power rails.
For engineers reviewing the 1.5SMC180AHM3_A/H datasheet, 1.5SMC180AHM3_A/H pinout, 1.5SMC180AHM3_A/H application, or 1.5SMC180AHM3_A/H equivalent, this device serves as an AEC-Q101-qualified, halogen-free, RoHS-compliant TVS for robust overvoltage protection in harsh environments where reliability under repetitive surges and thermal stability up to +150 °C junction temperature are critical.
Technical Context
This unidirectional TVS operates by avalanche breakdown above its reverse standoff voltage (VWM = 154 V min / 180 V typ), clamping transients to ≤246 V at 6.1 A IPPM. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 μA at VWM).
Designed for SMC (DO-214AB) surface-mount assembly, it delivers 1500 W peak pulse power with 0.01% duty cycle, low incremental surge resistance, and fast response time (<1.0 ns), enabling effective protection of downstream MOSFETs, ICs, and sensor interfaces against inductive switching spikes and lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 180 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC operating margin. |
| VBR (Breakdown) | 171–189 V at 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on behavior under transient stress. |
| VC (Clamping) | 246 V at IPPM = 6.1 A - Peak voltage seen by protected circuit during full-rated surge; determines minimum required voltage headroom. |
| PPPM | 1500 W (10/1000 μs) - Energy-handling capacity for standardized lightning/surge waveforms; enables single-device protection for Class III/IV IEC 61000-4-5 events. |
| TJ max | +150 °C - Maximum junction temperature rating; supports operation in under-hood automotive and industrial ambient conditions. |
| Package | SMC (DO-214AB) - Industry-standard 2-pin surface-mount package with 8.0 mm × 8.0 mm copper pad thermal layout; compatible with automated reflow assembly. |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD; supports functional safety-aware designs. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, cathode-banded unidirectional configuration. Dimensions: 7.11 mm × 6.22 mm × 2.62 mm (L × W × H); matte tin-plated leads, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path); completes conduction path during reverse transient clamp. |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail); avalanche breakdown occurs between cathode and anode when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables single-device protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges on 12 V/24 V systems without derating. |
| AEC-Q101 qualification (HM3 suffix) | Validated for automotive powertrain, body control, and ADAS modules requiring long-term reliability under thermal cycling and humidity. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JEDEC JS709B; eliminates brominated flame retardants for safer end-of-life processing. |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes voltage overshoot during clamping; reduces stress on downstream 200 V-rated MOSFETs or CAN transceivers. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without moisture sensitivity concerns; eliminates bake preconditioning. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load-dump and jump-start transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground, clamping surges within nanoseconds. Use Value: Withstands 1500 W pulses and maintains <1 μA leakage at 180 V, ensuring no standby current penalty while meeting OEM surge immunity specs. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS on signal line to ground, preserving signal integrity up to 1 MHz bandwidth. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) to <246 V without latch-up, preventing ADC saturation or microcontroller reset. |
| Telecom DC Power Input Protection | Motor Drive Gate Driver Protection |
Use Scenario: Safeguarding PoE-powered equipment inputs against induced surges from nearby AC mains or lightning coupling. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 48 V DC input, coordinated with upstream fuse and secondary filtering. Use Value: 180 V VWM aligns with 48 V nominal + 100% tolerance; 246 V VC ensures compliance with EN 61000-4-5 surge immunity requirements. |
Use Scenario: Protecting high-side N-channel MOSFET gate drivers from Miller-induced voltage spikes during fast switching. IC Role / Device Role / Timing Role: TVS across gate-to-source to suppress dv/dt-induced transients exceeding driver's absolute max rating. Use Value: Sub-1 ns response and low dynamic impedance limit gate overvoltage to safe levels, preventing unintended turn-on or oxide damage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180AHE3_A/H | Lower PPPM (600 W), same VWM (180 V), SMB package (smaller footprint, higher RθJA = 110 °C/W) | Better suited for space-constrained consumer PCBs with lower surge exposure; not AEC-Q101 qualified | Select when board area is limited and surge energy does not exceed 600 W; verify thermal margin with reduced copper pad area. |
| 1.5KE180A | Through-hole DO-201 package, identical electrical specs but no AEC-Q101 or halogen-free certification | Used in legacy industrial power supplies where reworkability and manual assembly are prioritized over automotive compliance | Choose only for non-automotive, non-RoHS-restricted designs requiring proven field reliability and serviceability. |
Compared with SMBJ180AHE3_A/H and 1.5KE180A, the 1.5SMC180AHM3_A/H uniquely combines AEC-Q101 qualification, halogen-free construction, and 1500 W surge capability in the SMC package - making it the preferred choice for new automotive and high-reliability industrial designs requiring both performance and compliance.
Availability
1.5SMC180AHM3_A/H 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, full traceability, and long-term lifecycle support.
Supply support for 1.5SMC180AHM3_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 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 TVS solutions for automotive, industrial, and telecom systems demanding AEC-Q101 qualification, low clamping voltage, and robust surge endurance in compact packages.
FAQ
What is the maximum clamping voltage of the 1.5SMC180AHM3_A/H under rated surge conditions?
The 1.5SMC180AHM3_A/H has a maximum clamping voltage (VC) of 246 V when subjected to its rated peak pulse current (IPPM) of 6.1 A using the standard 10/1000 μs waveform. This value is measured at TJ = 25 °C and reflects the upper limit of voltage imposed on the protected circuit during full-power transient events - critical for ensuring downstream components remain within their absolute maximum ratings.
Is the 1.5SMC180AHM3_A/H suitable for automotive applications?
Yes, the 1.5SMC180AHM3_A/H is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials - explicitly intended for automotive use. Its 1500 W surge rating, +150 °C junction temperature capability, and MSL Level 1 reflow compatibility make it appropriate for engine control units, body electronics, and ADAS power domains where reliability under thermal and electrical stress is mandatory.
How does the 1.5SMC180AHM3_A/H differ from the standard 1.5SMC180A part?
The 1.5SMC180AHM3_A/H adds three key qualifications over the base 1.5SMC180A: halogen-free construction (per JEDEC JS709B), RoHS compliance, and AEC-Q101 qualification. The "HM3" suffix denotes halogen-free + RoHS + AEC-Q101, while "_A/H" specifies packaging in 7″ tape-and-reel (850 pcs/reel). Electrically and dimensionally, it matches the 1.5SMC180A but meets stricter automotive and environmental standards.
What is the thermal resistance of the 1.5SMC180AHM3_A/H, and how does it affect layout design?
The 1.5SMC180AHM3_A/H 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. This value assumes optimal PCB layout; reducing pad size increases RθJA and risks thermal runaway during repetitive surges. Designers must allocate sufficient copper area and consider airflow or heatsinking if operating near PD = 6.5 W continuous dissipation limits.
Can the 1.5SMC180AHM3_A/H be used in bidirectional configurations?
No, the 1.5SMC180AHM3_A/H is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay offers the 1.5SMC180CA variant (with "CA" suffix), which provides symmetrical clamping in both polarities. Using the unidirectional 1.5SMC180AHM3_A/H in reverse-biased AC or floating-signal applications may result in forward conduction and failure.
1.5SMC180AHM3_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):
- 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/H FAQ
1.How can I place an order for 1.5SMC180AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC180AHM3_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 1.5SMC180AHM3_A/H reliable?
The price and inventory of 1.5SMC180AHM3_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 1.5SMC180AHM3_A/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC180AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC180AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC180AHM3_A/H?
1.5SMC180AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC180AHM3_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 1.5SMC180AHM3_A/H?
For technical support, including 1.5SMC180AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC180AHM3_A/H requirements.
6.How does Aetrix verify that 1.5SMC180AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC180AHM3_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 1.5SMC180AHM3_A/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC180AHM3_A/H?
All 1.5SMC180AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC180AHM3_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 1.5SMC180AHM3_A/H part is unused and in its original packaging.
Return procedure for 1.5SMC180AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC180AHM3_A/H Tags
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