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Vishay General Semiconductor - Diodes Division 1.5KE180CAHE3_A/C
- Part No.:
- 1.5KE180CAHE3_A/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE180CAHE3_A/C.pdf
- Description:
- TVS DIODE 154VWM 246VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,780
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Product details
Overview
1.5KE180CAHE3_A/C from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 1500 W peak pulse power rating (10/1000 µs), 180 V breakdown voltage (VBR = 171–189 V at IT = 1 mA), 154 V stand-off voltage (VWM), and clamps to ≤246 V at 6.1 A peak pulse current - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line conditioning.
For engineers reviewing the 1.5KE180CAHE3_A/C datasheet, 1.5KE180CAHE3_A/C pinout, 1.5KE180CAHE3_A/C application, or 1.5KE180CAHE3_A/C equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJL = 15.4 °C/W), JEDEC 1.5KE package dimensions, and real-world clamping behavior under lightning-surge waveforms.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, enabling bidirectional clamping without polarity marking. Its 10/1000 µs waveform response delivers sub-nanosecond turn-on (≤1 ns), low incremental surge resistance, and stable clamping across -55 °C to +175 °C junction temperature range.
Designed for transient suppression per IEC 61000-4-5 (lightning surge) and ISO 7637-2 (automotive load dump), it supports repetitive surge duty cycles up to 0.01 % and complies with UL 497B (QVGQ2 recognition) and RoHS (E3/HE3 suffix). The HE3 suffix confirms AEC-Q101 qualification per note (2) in the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 171 V / 189 V at 1 mA test current - defines reliable avalanche initiation threshold for bidirectional overvoltage events |
| VWM | 154 V - maximum continuous working voltage before leakage exceeds 1 μA; sets safe operating margin below breakdown |
| VC @ IPPM | 246 V at 6.1 A - clamping voltage during full 1500 W surge; determines protected circuit's maximum stress level |
| PPPM | 1500 W - peak pulse power handling capability with 10/1000 µs waveform; enables robust lightning strike immunity |
| RθJL | 15.4 °C/W - junction-to-lead thermal resistance; supports direct PCB copper pour heatsinking without external heatsink |
| TJ max | +175 °C - maximum junction temperature; allows operation in under-hood automotive or industrial enclosures |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per AEC standard |
Pinout & Package
Package: JEDEC-standard Case Style 1.5KE - molded epoxy body (UL 94 V-0 rated), matte tin-plated leads, 0.375" (9.5 mm) lead length, 0.042" (1.07 mm) lead diameter. Dimensions match industry-standard axial-leaded TVS footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Not marked on bidirectional device; terminals are electrically symmetric for AC-coupled surge paths |
| Cathode | Current exit point in forward bias | No color band or polarity marking - bidirectional operation eliminates cathode/anode distinction |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable, repeatable avalanche characteristics over 1000+ surge events without parameter drift |
| 1500 W peak pulse power | Withstands 10/1000 µs surges up to 6.1 A while limiting downstream voltage to ≤246 V |
| Sub-nanosecond response time | Clamps transients within 1 ns - faster than MOVs or polymer-based protectors, preserving IC integrity |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive applications including engine control units, ADAS sensors, and infotainment power rails |
| UL 497B recognized (QVGQ2) | Approved for use in telecom and industrial communication interfaces requiring safety-certified surge protection |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector interface to shunt surge energy before reaching signal conditioning circuitry. Use Value: Maintains signal integrity by clamping to ≤246 V during 10/1000 µs surges, preventing latch-up or gate oxide damage in downstream ASICs. | Use Scenario: Safeguarding digital input modules in programmable logic controllers against field-wiring induced surges from motor contactors or solenoid coils. IC Role / Device Role / Timing Role: Primary front-end transient suppressor on 24 V DC input channels, mounted adjacent to terminal block. Use Value: Absorbs 1500 W surges without degradation, enabling >100,000 surge cycles per IEC 61000-4-5 Level 4 compliance. |
| Telecom Line Interface | Power Supply Input Stage |
Use Scenario: Protecting Ethernet PHYs and RS-485 transceivers in outdoor base stations from induced lightning surges on long cable runs. IC Role / Device Role / Timing Role: Bidirectional TVS placed between differential pair and ground, referenced to common-mode choke output. Use Value: Clamps common-mode transients to <246 V while maintaining <1 pF junction capacitance - no signal integrity impact at 100 Mbps. | Use Scenario: Secondary surge suppression on 24–48 V DC input rails of industrial power supplies after primary MOV stage. IC Role / Device Role / Timing Role: Fast-acting secondary clamp that handles residual fast-rising edges missed by slower MOVs. Use Value: Reduces let-through voltage by >30 % compared to MOV-only designs, extending electrolytic capacitor lifetime. |
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 PPPM (600 W), smaller SMB package (surface-mount), higher VC (292 V @ 2.1 A) | Best suited for space-constrained PCBs where 1500 W is not required; lacks AEC-Q101 qualification in standard grade | Select when board area is critical and surge energy is ≤600 W; verify thermal performance on FR-4 without copper pour. |
| 1.5KE180AHE3_A/C | Unidirectional version; identical VBR, VWM, and PPPM, but includes cathode band marking and forward conduction path | Required only where DC-biased lines need asymmetric clamping (e.g., single-supply data lines with ground reference) | Choose only if circuit topology mandates unidirectional behavior; otherwise 1.5KE180CAHE3_A/C offers broader AC/DC flexibility. |
Compared with SMBJ180CA and 1.5KE180AHE3_A/C, the 1.5KE180CAHE3_A/C uniquely combines AEC-Q101 qualification, 1500 W capability, and true bidirectional symmetry - making it the only option qualified for automotive under-hood surge protection without polarity constraints.
Availability
1.5KE180CAHE3_A/C is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC deployment, and telecom infrastructure projects requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101-compliant sourcing.
Supply support for 1.5KE180CAHE3_A/C 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 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated.
FAQ
What is the clamping voltage of the 1.5KE180CAHE3_A/C at its rated peak pulse current?
The 1.5KE180CAHE3_A/C clamps to a maximum of 246 V at its rated peak pulse current of 6.1 A (10/1000 µs waveform), as specified in the Electrical Characteristics table on page 2 of Vishay document 88301. This value ensures downstream components see limited overvoltage stress during standardized surge events. The 1.5KE180CAHE3_A/C maintains this clamping performance across its full operating temperature range (-55 °C to +175 °C).
Is the 1.5KE180CAHE3_A/C qualified for automotive applications?
Yes, the 1.5KE180CAHE3_A/C carries the HE3 suffix, which Vishay explicitly states in note (2) on page 3 qualifies the device to AEC-Q101 for automotive use. This includes validation for temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge per the AEC standard. The 1.5KE180CAHE3_A/C is approved for under-hood and chassis-mounted applications where reliability under thermal and mechanical stress is critical.
How does the 1.5KE180CAHE3_A/C differ from unidirectional variants like 1.5KE180AHE3_A/C?
The 1.5KE180CAHE3_A/C is bidirectional with no polarity marking, enabling symmetrical clamping on AC-coupled or floating lines. In contrast, 1.5KE180AHE3_A/C is unidirectional, features a cathode band, and conducts forward current - making it suitable only for DC-biased circuits. Both share identical VBR, VWM, and PPPM, but the 1.5KE180CAHE3_A/C avoids incorrect orientation during assembly and supports differential signal protection.
What is the thermal resistance from junction to lead (RθJL) for the 1.5KE180CAHE3_A/C?
The 1.5KE180CAHE3_A/C has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, as published in the Thermal Characteristics table on page 3 of Vishay document 88301. This low value allows effective heat dissipation through the leads into PCB copper pours, eliminating the need for additional heatsinking in most 1500 W surge applications. The 1.5KE180CAHE3_A/C achieves this via its axial-leaded 1.5KE package geometry and internal chip mounting.
Does the 1.5KE180CAHE3_A/C meet UL safety standards?
Yes, the 1.5KE180CAHE3_A/C is Underwriters Laboratories (UL) recognized under standard UL 497B for protectors, with file number E136766 and QVGQ2 classification - applicable to both unidirectional and bidirectional devices per footnote (+) on page 1 of Vishay document 88301. This certification validates its use in telecom and industrial equipment requiring safety-agency-approved surge protection.
1.5KE180CAHE3_A/C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE180CAHE3_A/C FAQ
1.How can I place an order for 1.5KE180CAHE3_A/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE180CAHE3_A/C 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 1.5KE180CAHE3_A/C reliable?
The price and inventory of 1.5KE180CAHE3_A/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE180CAHE3_A/C is usually 5 days.
3.What payment methods are accepted for 1.5KE180CAHE3_A/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE180CAHE3_A/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE180CAHE3_A/C?
1.5KE180CAHE3_A/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE180CAHE3_A/C 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 1.5KE180CAHE3_A/C?
For technical support, including 1.5KE180CAHE3_A/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE180CAHE3_A/C requirements.
6.How does Aetrix verify that 1.5KE180CAHE3_A/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE180CAHE3_A/C 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 1.5KE180CAHE3_A/C meets industry standards.
7.What is the process for return or replacement of 1.5KE180CAHE3_A/C?
All 1.5KE180CAHE3_A/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE180CAHE3_A/C, 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 1.5KE180CAHE3_A/C part is unused and in its original packaging.
Return procedure for 1.5KE180CAHE3_A/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE180CAHE3_A/C Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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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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