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Vishay General Semiconductor - Diodes Division 1.5SMC180AHM3/I
- Part No.:
- 1.5SMC180AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC180AHM3/I.pdf
- Description:
- TVS DIODE 154VWM 246VC DO214AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
1.5SMC180AHM3/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on power and signal lines. It features a 1500 W peak pulse power rating (10/1000 μs), 154 V standoff voltage (VWM), 171–189 V breakdown voltage (VBR at 1 mA), and clamps transients to ≤246 V at 6.1 A peak pulse current - deployed in automotive power supply rails and industrial sensor interfaces.
For engineers reviewing the 1.5SMC180AHM3/I datasheet, 1.5SMC180AHM3/I pinout, 1.5SMC180AHM3/I application, or 1.5SMC180AHM3/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), junction temperature limit (TJ = 150 °C), and halogen-free RoHS-compliant construction per JESD201 Class 2 whisker test.
Technical Context
The 1.5SMC180AHM3/I operates as a unidirectional clamping device with glass-passivated silicon junction, responding in <1 ps to ESD and lightning-induced transients. Its low incremental surge resistance ensures stable clamping under repetitive 10/1000 μs surges at 0.01% duty cycle, while its MSL Level 1 rating supports lead-free reflow up to 260 °C peak.
Designed for surface-mount placement on 8.0 mm × 8.0 mm copper pads per terminal, it delivers 6.5 W steady-state power dissipation at TA = 50 °C and withstands 200 A non-repetitive forward surge (8.3 ms half-sine). Polarity is marked by cathode band; no marking applies to bidirectional variants.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 154 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC working margin. |
| VBR (min/max) | 171 V / 189 V at IT = 1 mA - guaranteed breakdown threshold range; ensures predictable turn-on across production lot. |
| VC @ IPPM | ≤246 V at 6.1 A - clamped voltage during 1500 W transient; determines protected circuit's maximum stress level. |
| PPPM | 1500 W - peak pulse power handling (10/1000 μs waveform); validates robustness against IEC 61000-4-5 Level 4 surges. |
| RθJA | 75 °C/W - junction-to-ambient thermal resistance; informs heatsinking requirements for sustained power dissipation. |
| TJ max. | +150 °C - maximum allowable junction temperature; sets upper thermal limit for reliability in under-hood automotive use. |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 0.320" × 0.246" footprint; compatible with automated pick-and-place. |
Pinout & Package
SMC (DO-214AB) package: molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-002 and JESD22-B102; cathode indicated by band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected line ground or low-side reference. | Defines polarity-sensitive connection - incorrect orientation disables clamping function. |
| Cathode | Current exit point in forward bias; connected to protected line (e.g., 12 V rail or signal trace). | Band-marked terminal; must be tied to higher-potential node for unidirectional suppression. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables compliance with IEC 61000-4-5 surge immunity requirements for automotive and industrial equipment. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JEDEC standards. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and JESD201 Class 2 whisker resistance - suitable for green manufacturing. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving protection margin for downstream MOSFETs and ICs. |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning - reduces assembly complexity and cost. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Suppresses load-dump spikes (up to 120 V) and ISO 7637-2 pulses on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery input and upstream DC/DC converter input. Use Value: Limits transient voltage to ≤246 V, protecting 36 V-rated input stages of PMICs and microcontrollers without derating. |
Use Scenario: Guards analog outputs (e.g., 4–20 mA current loops) and digital I/O (CAN, LIN) against ESD and inductive switching noise in factory automation sensors. IC Role / Device Role / Timing Role: Point-of-entry TVS on sensor PCB edge connector, shunting surges to chassis ground. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) within <1 ns, preserving signal integrity and preventing latch-up in op-amps and transceivers. |
| Telecom AC/DC Adapter Input Stage | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Protects primary-side rectifier and controller ICs in offline SMPS adapters subjected to lightning-induced surges on AC mains. IC Role / Device Role / Timing Role: Secondary-side TVS across bulk capacitor or across bridge rectifier output. Use Value: Absorbs 1500 W surge energy without degradation, maintaining adapter uptime and avoiding fuse blowouts during grid disturbances. |
Use Scenario: Shields gate drivers and MCU I/O from back-EMF spikes generated by brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: TVS mounted across motor terminals or across H-bridge low-side FET source-drain. Use Value: Withstands 200 A 8.3 ms surge (IFSM), preventing destructive voltage reversal that could damage logic-level MOSFETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180A-E3/52 | Lower PPPM (600 W), SMB package (smaller footprint), same VWM/VBR range, non-AEC-Q101. | Limited to lower-energy surges (IEC 61000-4-5 Level 2); unsuitable for automotive under-hood environments. | Select when space-constrained layouts require smaller SMT package and surge threat level is ≤600 W. |
| 1.5KE180A | Through-hole DO-201 package, identical electrical specs, no AEC-Q101 or halogen-free certification. | Not compatible with automated SMT assembly; lacks automotive qualification and green material compliance. | Choose only for legacy through-hole designs where rework or manual assembly is acceptable. |
Compared with SMBJ180A-E3/52 and 1.5KE180A, the 1.5SMC180AHM3/I uniquely combines 1500 W surge capability, AEC-Q101 qualification, halogen-free construction, and SMC package - making it the sole option for new automotive and industrial SMT designs requiring full compliance and high-energy resilience.
Availability
1.5SMC180AHM3/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom power supplies, and consumer appliance motor drives requiring stable component supply, long-term lifecycle support, and certified green materials.
Supply support for 1.5SMC180AHM3/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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The 1.5SMC Series targets high-power transient suppression in harsh environments - engineered for automotive, industrial, and telecom systems where surge immunity, thermal stability, and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC180AHM3/I at its rated peak pulse current?
The 1.5SMC180AHM3/I clamps to a maximum of 246 V at its specified peak pulse current of 6.1 A (10/1000 μs waveform). This value is measured under standardized test conditions with 8.0 mm × 8.0 mm copper pads per terminal and defines the upper voltage limit imposed on protected circuits during worst-case surge events. The 1.5SMC180AHM3/I maintains this clamping performance across its operational temperature range and after repeated surge exposure, provided derating guidelines are followed.
Is the 1.5SMC180AHM3/I qualified for automotive applications?
Yes, the 1.5SMC180AHM3/I carries the HM3 suffix, indicating it is halogen-free, RoHS-compliant, and AEC-Q101 qualified. It has passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per JEDEC standards - validating its suitability for under-hood and chassis-mounted automotive electronics. The 1.5SMC180AHM3/I is explicitly listed in Vishay's AEC-Q101 qualified product matrix for the 1.5SMC family.
What does the "I" suffix mean in 1.5SMC180AHM3/I?
The "I" suffix in 1.5SMC180AHM3/I denotes packaging in 13-inch diameter plastic tape and reel, with a standard quantity of 3500 units per reel. This format supports high-volume automated SMT assembly lines and is compatible with industry-standard pick-and-place feeders. The base part number 1.5SMC180AHM3 remains unchanged - the "I" identifies only the delivery configuration, not electrical or reliability characteristics.
How does the thermal resistance of the 1.5SMC180AHM3/I affect its power handling?
The 1.5SMC180AHM3/I has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on minimum recommended pad layout. At ambient temperatures above 25 °C, its steady-state power dissipation must be derated linearly - for example, at 70 °C ambient, maximum continuous power drops to ~3.5 W. This derating ensures junction temperature stays below the 150 °C absolute maximum, preserving long-term reliability and clamping consistency. The 1.5SMC180AHM3/I's RθJA is validated using 8.0 mm × 8.0 mm copper pads per terminal.
Can the 1.5SMC180AHM3/I replace a 1.5KE180A in an existing design?
The 1.5SMC180AHM3/I is not a direct drop-in replacement for the through-hole 1.5KE180A due to package incompatibility (SMC vs. DO-201) and differing mounting requirements. While both share identical VWM, VBR, and VC specifications, the 1.5SMC180AHM3/I requires SMT layout changes, reflow profile adjustment, and verification of thermal pad design. However, its AEC-Q101 qualification and halogen-free construction make it a superior upgrade path for new automotive or industrial SMT designs where the 1.5KE180A was previously used.
1.5SMC180AHM3/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:
- Discontinued at Digi-Key
- 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/I FAQ
1.How can I place an order for 1.5SMC180AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC180AHM3/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/I reliable?
The price and inventory of 1.5SMC180AHM3/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/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC180AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC180AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC180AHM3/I?
1.5SMC180AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC180AHM3/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/I?
For technical support, including 1.5SMC180AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC180AHM3/I requirements.
6.How does Aetrix verify that 1.5SMC180AHM3/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC180AHM3/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/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC180AHM3/I?
All 1.5SMC180AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC180AHM3/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/I part is unused and in its original packaging.
Return procedure for 1.5SMC180AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC180AHM3/I Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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