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Vishay General Semiconductor - Diodes Division 1.5KE180A-E3/54
- Part No.:
- 1.5KE180A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE180A-E3/54.pdf
- Description:
- TVS DIODE 154VWM 246VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,691
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Product details
Overview
1.5KE180A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-side overvoltage protection in power rails and signal lines. It features a 171 V to 189 V breakdown voltage (VBR), 154 V maximum working voltage (VWM), 246 V clamping voltage at 6.1 A peak pulse current, 1500 W peak pulse power (10/1000 µs), and operates across –55 °C to +175 °C junction temperature range - deployed in automotive power supply inputs and industrial sensor interface protection.
For engineers reviewing the 1.5KE180A-E3/54 datasheet, 1.5KE180A-E3/54 pinout, 1.5KE180A-E3/54 application, or 1.5KE180A-E3/54 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping behavior under surge conditions, thermal resistance (RθJA = 75 °C/W), and direct alternatives with documented VBR, VC, and IPPM differences.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction to achieve sub-nanosecond response time (<1 ns) and low incremental surge resistance. Its clamping action begins at VBR = 171–189 V (IT = 1 mA), limits transient voltage to ≤246 V at IPPM = 6.1 A (10/1000 µs), and maintains stable performance up to TJ = 175 °C with derating above 25 °C ambient.
The device complies with JEDEC standard 1.5KE case outline, supports 200 A non-repetitive forward surge (8.3 ms half-sine), exhibits 1.0 µA max reverse leakage at VWM, and delivers 6.5 W steady-state power dissipation on infinite heatsink at TL = 75 °C - enabling robust protection in DC power distribution networks subject to inductive switching transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 171 V / 189 V at IT = 1 mA - defines precise voltage threshold where avalanche conduction initiates |
| VWM | 154 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 246 V at 6.1 A (10/1000 µs) - peak clamped voltage seen by protected circuit during worst-case surge |
| PPPM | 1500 W - peak transient power handling capability under standardized 10/1000 µs waveform |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, critical for PCB copper pour and layout thermal design |
| TJ Range | –55 °C to +175 °C - enables deployment in under-hood automotive and high-temperature industrial environments |
| IFSM | 200 A (8.3 ms half-sine) - surge current rating for unidirectional forward conduction during fault events |
Pinout & Package
Package: JEDEC 1.5KE molded epoxy case (DO-201AD), axial-leaded, RoHS-compliant matte tin-plated leads. Cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return in unidirectional clamp configuration |
| Cathode | Avalanche conduction node / protected line connection | Connected to line being protected (e.g., 12 V rail); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5 %), low leakage (<1 µA), and long-term reliability under thermal cycling |
| 1500 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly decoupled and routed |
| Sub-nanosecond response | Clamps transients before sensitive ICs (e.g., microcontrollers, CAN transceivers) experience overstress |
| 175 °C max junction temperature | Permits operation in engine control units, motor drives, and enclosed industrial enclosures without derating |
| JEDEC 1.5KE mechanical standard | Ensures compatibility with automated axial-leaded insertion equipment and legacy board designs |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator switching spikes. IC Role / Device Role / Timing Role: Primary shunt clamp placed between power rail and chassis ground, conducting only during overvoltage events. Use Value: Limits rail voltage to ≤246 V during 100 A/100 ms load dump surges, preventing MOSFET gate oxide rupture and MCU brownout. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC analog input modules. IC Role / Device Role / Timing Role: Unidirectional TVS mounted at sensor connector, clamping induced EFT/burst transients on 4–20 mA loop wiring. Use Value: Suppresses 4 kV contact ESD (IEC 61000-4-2) and 2 kV fast transients (IEC 61000-4-4) without affecting 0.1 % FS signal accuracy. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Supply |
Use Scenario: Securing -48 V DC telecom rectifier outputs against lightning-induced surges on outside plant lines. IC Role / Device Role / Timing Role: Standoff-mode protector on rectifier output bus, absorbing longitudinal mode surges coupled via transformer windings. Use Value: Withstands repetitive 1500 W pulses at 0.01 % duty cycle while maintaining VWM = 154 V for uninterrupted system uptime. | Use Scenario: Shielding BLDC motor driver power stages from back-EMF spikes generated during commutation. IC Role / Device Role / Timing Role: Rail-to-ground TVS on 24 V logic supply, triggered only during inductive kickback exceeding 189 V. Use Value: Clamps 600 V spikes to 246 V within <1 ns, preventing latch-up in gate drivers and preserving PWM timing integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ170A | VBR = 182–201 V, VC = 274 V @ 5.5 A, PPPM = 400 W, SMA package | Lower power rating and surface-mount form factor - suited for space-constrained consumer PCBs, not high-energy industrial surges | Select when board area is limited and surge energy is ≤400 W; verify layout thermal relief for SMA footprint. |
| ON Semiconductor 1.5SMC180A | VBR = 171–189 V (same), VC = 246 V @ 6.1 A (same), but SMC package (DO-214AB), RθJA = 50 °C/W | Surface-mount alternative with superior thermal performance - requires rework of through-hole footprint and solder profile | Choose for automated SMT lines and improved thermal management; confirm padstack compatibility and reflow profile. |
Compared with 1.5KE180A-E3/54, SMAJ170A offers smaller size but only 400 W surge capacity - insufficient for ISO 7637-2 compliance - while 1.5SMC180A matches all key electrical specs yet demands SMT redesign and delivers 33 % lower junction-to-ambient thermal resistance.
Availability
1.5KE180A-E3/54 is available at Aetrix Electronics and suitable for automotive ECU power inputs, industrial sensor interfaces, telecom DC feeds, and appliance motor drive supplies requiring stable component supply across extended temperature and surge stress conditions.
Supply support for 1.5KE180A-E3/54 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 and ruggedized performance.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh-environment applications - delivering consistent clamping, wide temperature operation, and JEDEC-standard mechanical compatibility for legacy and new industrial designs.
FAQ
What is the exact breakdown voltage range for 1.5KE180A-E3/54?
The 1.5KE180A-E3/54 has a guaranteed breakdown voltage (VBR) range of 171 V to 189 V measured at IT = 1 mA, per Vishay Document 88301. This 5 % tolerance ensures predictable turn-on behavior during overvoltage events and aligns with JEDEC standard 1.5KE family specifications. The 1.5KE180A-E3/54 must be biased correctly - cathode to protected line, anode to ground - to operate within this specified range.
Does 1.5KE180A-E3/54 meet AEC-Q101 qualification?
No, 1.5KE180A-E3/54 is a commercial-grade part and does not carry AEC-Q101 qualification. Per Vishay documentation, AEC-Q101 qualification applies only to variants with HE3 suffix (e.g., 1.5KE180AHE3_B), not the E3/54 variant. The 1.5KE180A-E3/54 remains suitable for industrial and telecom applications where automotive-grade stress testing is not mandated, but designers requiring AEC-Q101 must specify the HE3 version.
What is the clamping voltage of 1.5KE180A-E3/54 under a 10/1000 µs surge?
The 1.5KE180A-E3/54 clamps to a maximum of 246 V when subjected to its rated peak pulse current of 6.1 A under the standardized 10/1000 µs waveform. This value is confirmed in the Electrical Characteristics table of Vishay Document 88301 and represents the highest voltage the protected circuit will experience during such a transient. The 1.5KE180A-E3/54 achieves this clamping with minimal overshoot due to its sub-nanosecond response time.
Can 1.5KE180A-E3/54 be used in bidirectional configurations?
No, 1.5KE180A-E3/54 is strictly a unidirectional TVS diode. Bidirectional variants in the same family use the "CA" suffix (e.g., 1.5KE180CA), which are physically and electrically distinct. Using 1.5KE180A-E3/54 in a bidirectional application would result in forward conduction during negative transients and failure to protect. Always match the suffix: "A" = unidirectional, "CA" = bidirectional.
What is the thermal resistance and maximum power dissipation of 1.5KE180A-E3/54?
The 1.5KE180A-E3/54 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and a steady-state power dissipation (PD) of 6.5 W when mounted on an infinite heatsink at lead temperature TL = 75 °C. These values are defined in the Thermal Characteristics section of Vishay Document 88301. For reliable long-term operation, PCB layout must provide adequate copper area and airflow to maintain TJ ≤ 175 °C - especially under repeated surge conditions.
1.5KE180A-E3/54 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:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE180A-E3/54 FAQ
1.How can I place an order for 1.5KE180A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE180A-E3/54 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 1.5KE180A-E3/54 reliable?
The price and inventory of 1.5KE180A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE180A-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE180A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE180A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE180A-E3/54?
1.5KE180A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE180A-E3/54 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 1.5KE180A-E3/54?
For technical support, including 1.5KE180A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE180A-E3/54 requirements.
6.How does Aetrix verify that 1.5KE180A-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE180A-E3/54 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 1.5KE180A-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE180A-E3/54?
All 1.5KE180A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE180A-E3/54, 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 1.5KE180A-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE180A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE180A-E3/54 Tags
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