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Vishay General Semiconductor - Diodes Division 1.5SMC180CAHE3_A/I
- Part No.:
- 1.5SMC180CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC180CAHE3_A/I.pdf
- Description:
- TVS DIODE 154VWM 246VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:7,010
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Product details
Overview
1.5SMC180CAHE3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 154 V standoff voltage (VWM), and clamps to ≤246 V at 6.1 A peak pulse current. It protects automotive-grade sensor signal lines and power rails against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1.5SMC180CAHE3_A/I datasheet, 1.5SMC180CAHE3_A/I pinout, 1.5SMC180CAHE3_A/I application, or 1.5SMC180CAHE3_A/I equivalent, this AEC-Q101 qualified TVS offers verified bidirectional clamping, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive and industrial PCB designs requiring robust ESD and surge immunity.
Technical Context
This device operates as a voltage-clamped transient protector with symmetrical breakdown behavior in both directions due to its bidirectional Zener-like structure. Its glass-passivated junction ensures stable avalanche characteristics and fast response time (<1 ns), enabling effective suppression of sub-microsecond transients.
Designed for surface-mount assembly on standard 0.31" × 0.31" copper pads, it delivers 1500 W peak pulse power under JEDEC-standard 10/1000 μs waveform while maintaining thermal resistance of 75 °C/W (junction-to-ambient) and operating across -65 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 154 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below system rail. |
| VBR (Breakdown) | 171–189 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping) | ≤246 V at IPPM = 6.1 A - Peak voltage seen by protected circuit during 10/1000 μs surge; limits stress on downstream ICs. |
| PPPM | 1500 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 surge compliance when properly laid out. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| MSL Level | Level 1 (per J-STD-020) - No floor life limitation; allows indefinite storage and standard reflow without baking. |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTGB, HTRB, and TCT. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, bidirectional configuration with no polarity marking - both terminals are electrically symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Identical terminals enable bidirectional clamping; no orientation required during placement - simplifies automated assembly. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints. |
| 1500 W peak pulse power | Supports high-energy surge suppression per IEC 61000-4-5 up to 4 kV (open-circuit) with appropriate PCB layout. |
| Glass-passivated junction | Ensures long-term stability of breakdown voltage and leakage current under thermal cycling and humidity stress. |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units, ADAS sensors, and body electronics. |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients, improving protection margin for sensitive ICs. |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors in engine compartments exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across sensor supply and ground or differential signal pair. Use Value: Limits transient voltage to ≤246 V during 10/1000 μs surges, preventing latch-up or gate oxide damage in downstream op-amps and ADCs. |
Use Scenario: Safeguarding CAN_H and CAN_L lines in vehicle ECUs against ESD (IEC 61000-4-2) and burst noise (IEC 61000-4-4). IC Role / Device Role / Timing Role: Low-capacitance TVS placed differentially between CAN_H/CAN_L and common-mode to chassis ground. Use Value: Clamps common-mode surges without distorting 1 Mbps CAN signaling integrity due to symmetrical bidirectional response and <1 ns reaction time. |
| Telecom Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding 48 V DC input stages of PoE-powered switches and base stations from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS connected line-to-ground on DC input before DC-DC converter stage. Use Value: Absorbs up to 1500 W transient energy while holding clamped voltage below 246 V, preserving upstream rectifier and controller ICs. |
Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Bidirectional clamp installed across motor terminals to shunt inductive kickback energy. Use Value: Prevents MOSFET drain-source breakdown by limiting flyback voltage to ≤246 V, extending power stage lifetime under repeated switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180CA | Lower peak pulse power (600 W), same VWM (154 V), SMB package (smaller footprint, higher RθJA). | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 compliance. | Select when board space is constrained and surge threat level is ≤1 kV (open-circuit). |
| 1.5KE180CA | Through-hole TO-218 package, identical electrical specs but incompatible mounting and thermal profile. | Requires manual or wave soldering; not suitable for fully SMT production lines. | Choose only for legacy through-hole designs or prototyping where rework flexibility outweighs automation needs. |
Compared with SMBJ180CA and 1.5KE180CA, the 1.5SMC180CAHE3_A/I uniquely combines AEC-Q101 qualification, 1500 W surge rating, and SMC package compatibility with high-volume pick-and-place assembly - making it the preferred choice for automotive and industrial SMT production requiring certified reliability and high-energy immunity.
Availability
1.5SMC180CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, telecom power inputs, and consumer appliance motor drives requiring stable component supply and full AEC-Q101 traceability.
Supply support for 1.5SMC180CAHE3_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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The 1.5SMC Series was developed to deliver high-power, surface-mount TVS protection for automotive, industrial, and telecom systems where space, surge immunity, and qualification rigor are critical design constraints.
FAQ
What does the "CA" suffix indicate in 1.5SMC180CAHE3_A/I?
The "CA" suffix denotes a bidirectional configuration - meaning the 1.5SMC180CAHE3_A/I provides symmetrical clamping in both polarities, with no cathode/anode distinction. This enables use on AC signals, differential buses like CAN or RS-485, or any floating node where polarity reversal may occur during transients.
Is 1.5SMC180CAHE3_A/I RoHS-compliant and halogen-free?
Yes, the 1.5SMC180CAHE3_A/I carries the "HE3" suffix, indicating it is RoHS-compliant and AEC-Q101 qualified. However, it is not halogen-free - that designation requires the "HM3" suffix (e.g., 1.5SMC180CAHM3_A/I). The HE3 variant uses standard matte tin plating and meets JESD201 Class 2 whisker resistance.
What is the maximum clamping voltage for 1.5SMC180CAHE3_A/I at its rated peak pulse current?
The maximum clamping voltage (VC) for 1.5SMC180CAHE3_A/I is 246 V at 6.1 A peak pulse current (IPPM), measured under the standard 10/1000 μs double-exponential waveform. This value is guaranteed across the full operating temperature range and forms the basis for protected circuit voltage margining.
Can 1.5SMC180CAHE3_A/I be used in place of unidirectional 1.5SMC180AHE3_A/I?
No - the 1.5SMC180CAHE3_A/I is bidirectional and lacks polarity marking, while the unidirectional 1.5SMC180AHE3_A/I has a cathode band and conducts only in reverse bias. Substituting them risks incorrect clamping behavior in DC-biased circuits; the devices serve distinct circuit roles and are not functionally interchangeable.
What PCB pad layout is recommended for optimal thermal and surge performance of 1.5SMC180CAHE3_A/I?
Vishay specifies a minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad area per terminal for the 1.5SMC180CAHE3_A/I. Using this layout achieves the rated 1500 W peak pulse power and maintains RθJA ≤75 °C/W; smaller pads reduce surge capability and increase junction temperature during repetitive events.
1.5SMC180CAHE3_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:
- -
- Bidirectional Channels:
- 1
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
1.5SMC180CAHE3_A/I FAQ
1.How can I place an order for 1.5SMC180CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC180CAHE3_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 1.5SMC180CAHE3_A/I reliable?
The price and inventory of 1.5SMC180CAHE3_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 1.5SMC180CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for 1.5SMC180CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC180CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC180CAHE3_A/I?
1.5SMC180CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC180CAHE3_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 1.5SMC180CAHE3_A/I?
For technical support, including 1.5SMC180CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC180CAHE3_A/I requirements.
6.How does Aetrix verify that 1.5SMC180CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All 1.5SMC180CAHE3_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 1.5SMC180CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of 1.5SMC180CAHE3_A/I?
All 1.5SMC180CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC180CAHE3_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 1.5SMC180CAHE3_A/I part is unused and in its original packaging.
Return procedure for 1.5SMC180CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC180CAHE3_A/I Tags
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ESD9B5.0ST5G
onsemi
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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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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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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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