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Vishay General Semiconductor - Diodes Division 1.5KE180AHE3/51
- Part No.:
- 1.5KE180AHE3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE180AHE3/51.pdf
- Description:
- TVS DIODE 154VWM 246VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,416
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Product details
Overview
1.5KE180AHE3/51 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 171 V to 189 V breakdown voltage range at 1 mA, 154 V maximum stand-off voltage, 246 V clamping voltage at 6.1 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the 1.5KE180AHE3/51 datasheet, 1.5KE180AHE3/51 pinout, 1.5KE180AHE3/51 application, or 1.5KE180AHE3/51 equivalent, key selection criteria include clamping performance under 6.1 A surge, AEC-Q101 qualification status, thermal resistance (RθJL = 15.4 °C/W), and RoHS-compliant matte tin-plated leads meeting J-STD-002 solderability standards.
Technical Context
This TVS diode uses a glass passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its uni-directional polarity enables integration into DC-biased circuits where reverse conduction must be blocked until clamping threshold is exceeded.
The device operates across -55 °C to +175 °C junction temperature range and is rated for 200 A non-repetitive forward surge current (8.3 ms half-sine). Clamping behavior is characterized per JEDEC-standard 10/1000 µs waveform, with derating applied above 25 °C ambient per published thermal curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 171 V min. to 189 V max. at 1 mA - defines precise clamping initiation threshold for overvoltage events |
| Stand-off Voltage VWM | 154 V max. - ensures no conduction during normal 154 V DC operation, minimizing leakage |
| Clamping Voltage VC | 246 V at 6.1 A IPPM - limits downstream voltage stress during 1500 W transient events |
| Peak Pulse Power PPPM | 1500 W with 10/1000 µs waveform - sustains high-energy surges without failure |
| Junction Temperature Range | -55 °C to +175 °C - supports under-hood automotive and industrial environments |
| Thermal Resistance RθJL | 15.4 °C/W - enables effective heat transfer to PCB copper or heatsink via leads |
| AEC-Q101 Qualified | Yes - validated for automotive electronics reliability per stress test requirements |
Pinout & Package
Package: Case Style 1.5KE - molded epoxy body with matte tin-plated axial leads; meets UL 94 V-0 flammability rating and JESD 22-B106 solder dip specification (275 °C, 10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / clamping reference | Connected to lower-potential side of protected circuit; cathode band denotes opposite end |
| Cathode | Clamping output / surge return path | Connected to higher-potential rail (e.g., VIN); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable VBR tolerance and long-term reliability under thermal cycling |
| 1500 W peak pulse power (10/1000 µs) | Protects against IEC 61000-4-5 Level 4 surges (4 kV line-earth) in single-device configuration |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body control modules without additional qualification |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for 3.3 V/5 V ICs |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and global environmental compliance mandates |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V/24 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Primary clamping device placed between input fuse and DC-DC converter input. Use Value: Limits voltage to ≤246 V during 1500 W surges, preventing damage to upstream MOSFETs and controller ICs. |
Use Scenario: 4–20 mA current loop sensors in factory automation subject to ESD and inductive switching noise. IC Role / Device Role / Timing Role: Uni-directional TVS shunting transients on analog input lines before instrumentation amplifier. Use Value: Clamps sub-100 ns ESD events to safe levels while maintaining <1 µA leakage at 154 V operating voltage. |
| Telecom DC Power Feeds | Consumer Power Adapter Outputs |
Use Scenario: -48 V telecom rectifier outputs feeding base station radios vulnerable to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on secondary-side DC bus to suppress common-mode transients. Use Value: Withstands repetitive 10/1000 µs surges up to 0.01% duty cycle without degradation. |
Use Scenario: USB-C PD adapter 20 V output rails exposed to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Final-stage overvoltage clamp before Type-C port controller and load switch. Use Value: Fast <1 ns response prevents latch-up in 20 V-rated USB-PD controllers during 8/20 µs surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180A | DO-214AA package, 180 V VBR, 1000 W PPPM, RθJA = 40 °C/W | Lower power rating and higher thermal resistance limit use in high-duty-cycle or high-ambient scenarios | Select when board space is constrained and surge energy remains ≤1000 W |
| 1.5KE180A-E3/54 | Same electrical specs but commercial-grade (non-AEC-Q101), E3 suffix only (JESD 201 Class 1A whisker test) | Lacks automotive qualification; unsuitable for OEM vehicle programs requiring AEC-Q101 evidence | Choose for cost-sensitive industrial or consumer designs where automotive reliability is not mandated |
Compared with 1.5KE180AHE3/51, SMBJ180A offers smaller footprint but reduced surge handling and thermal performance, while 1.5KE180A-E3/54 matches electrical behavior but omits AEC-Q101 validation - making 1.5KE180AHE3/51 the sole option for production automotive systems requiring full qualification traceability.
Availability
1.5KE180AHE3/51 is available at Aetrix Electronics and suitable for automotive power distribution units, industrial PLC analog I/O modules, and telecom DC power feeds requiring stable component supply with AEC-Q101 assurance and RoHS compliance.
Supply support for 1.5KE180AHE3/51 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 infrastructure where robustness against lightning, load dump, and ESD is mission-critical.
FAQ
What is the clamping voltage of the 1.5KE180AHE3/51 under standard test conditions?
The 1.5KE180AHE3/51 exhibits a maximum clamping voltage (VC) of 246 V at 6.1 A peak pulse current using the 10/1000 µs waveform. This value is measured per JEDEC Standard 22-A112 and reflects the upper limit of voltage seen by protected circuitry during a defined transient event. The 1.5KE180AHE3/51 maintains this clamping performance across its qualified operating temperature range.
Is the 1.5KE180AHE3/51 suitable for automotive applications?
Yes, the 1.5KE180AHE3/51 is AEC-Q101 qualified per Vishay documentation (Document Number 88301, Revision 11-Oct-16), covering stress tests including HTGB, HTRB, TCT, and mechanical shock. Its -55 °C to +175 °C operating junction temperature range and HE3 suffix (JESD 201 Class 2 whisker resistance) make it appropriate for under-hood and chassis-mounted automotive modules. The 1.5KE180AHE3/51 is explicitly listed in the AEC-Q101 qualified subset for 1.5KE6.8AHE3_A through 1.5KE220AHE3_A.
How does the 1.5KE180AHE3/51 differ from the 1.5KE180A-E3/54 variant?
The 1.5KE180AHE3/51 and 1.5KE180A-E3/54 share identical electrical specifications (VBR, VWM, VC, PPPM), but differ in qualification and plating: 1.5KE180AHE3/51 is AEC-Q101 qualified and meets JESD 201 Class 2 whisker resistance, whereas 1.5KE180A-E3/54 is commercial-grade with Class 1A whisker testing. Both are RoHS compliant, but only the 1.5KE180AHE3/51 carries automotive reliability certification required for Tier 1 OEM programs.
What is the thermal resistance from junction to lead (RθJL) for the 1.5KE180AHE3/51?
The 1.5KE180AHE3/51 has a typical thermal resistance of 15.4 °C/W from junction to lead (RθJL), as specified in Vishay's Thermal Characteristics table (Document Number 88301, page 3). This parameter enables accurate thermal modeling when mounted on PCBs with adequate copper pour or when used with external heatsinking - critical for sustaining repetitive surge events without exceeding the 175 °C maximum junction temperature.
Does the 1.5KE180AHE3/51 have polarity marking, and how is it identified?
Yes, the 1.5KE180AHE3/51 is a uni-directional TVS diode with a visible cathode band on the epoxy body - consistent with standard diode marking convention. The banded end is the cathode and must be connected toward the higher-potential side of the circuit (e.g., VIN), while the anode connects toward ground or lower potential. This polarity ensures proper blocking during normal operation and controlled clamping during overvoltage events. The 1.5KE180AHE3/51 follows JEDEC-standard marking per the 1.5KE family outline.
1.5KE180AHE3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE180AHE3/51 FAQ
1.How can I place an order for 1.5KE180AHE3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE180AHE3/51 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 1.5KE180AHE3/51 reliable?
The price and inventory of 1.5KE180AHE3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE180AHE3/51 is usually 5 days.
3.What payment methods are accepted for 1.5KE180AHE3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE180AHE3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE180AHE3/51?
1.5KE180AHE3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE180AHE3/51 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 1.5KE180AHE3/51?
For technical support, including 1.5KE180AHE3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE180AHE3/51 requirements.
6.How does Aetrix verify that 1.5KE180AHE3/51 is sourced from the original manufacturer or authorized distributors?
All 1.5KE180AHE3/51 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 1.5KE180AHE3/51 meets industry standards.
7.What is the process for return or replacement of 1.5KE180AHE3/51?
All 1.5KE180AHE3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE180AHE3/51, 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 1.5KE180AHE3/51 part is unused and in its original packaging.
Return procedure for 1.5KE180AHE3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE180AHE3/51 Tags
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