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Vishay General Semiconductor - Diodes Division 1.5KE180-E3/54
- Part No.:
- 1.5KE180-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE180-E3/54.pdf
- Description:
- TVS DIODE 146VWM 258VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,799
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Product details
Overview
1.5KE180-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection of DC power rails and signal lines. It features a 171 V to 189 V breakdown voltage (VBR), 154 V maximum working voltage (VWM), 1500 W peak pulse power (10/1000 µs), 6.1 A peak pulse current (IPPM), and clamps transients to ≤246 V at rated surge. It is used in automotive power supply inputs, industrial PLC I/O protection, and telecom line interface circuits.
For engineers reviewing the 1.5KE180-E3/54 datasheet, 1.5KE180-E3/54 pinout, 1.5KE180-E3/54 application, or 1.5KE180-E3/54 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, clamping performance under standardized surge waveforms, thermal derating behavior, and validated alternative parts for circuit redesign or supply continuity planning.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for fast transient response (<1 ns) and low incremental surge resistance. Its unidirectional polarity enables integration into DC-biased circuits where reverse conduction must be blocked until clamping threshold is exceeded.
The device operates within -55 °C to +175 °C junction temperature range and exhibits a temperature coefficient of VBR of +0.108 %/°C. Thermal resistance from junction to lead is 15.4 °C/W, enabling effective heat dissipation through PCB copper when mounted with standard 0.375" (9.5 mm) lead length.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 171 V / 189 V at 1.0 mA test current - defines reliable turn-on threshold under ESD/lightning surge conditions |
| VWM | 154 V - maximum continuous DC or RMS voltage the device blocks without leakage exceeding 1.0 µA |
| VC @ IPPM | ≤246 V at 6.1 A (10/1000 µs) - clamped voltage seen by protected IC during full-rated surge event |
| PPPM | 1500 W - peak transient power handling capability per single 10/1000 µs waveform, duty cycle ≤0.01 % |
| IFSM | 200 A - non-repetitive forward surge current rating (8.3 ms half-sine), critical for inductive switch-off protection |
| TJ max. | +175 °C - maximum junction temperature, supporting operation in under-hood automotive or high-ambient industrial environments |
| RθJL | 15.4 °C/W - thermal resistance from junction to lead, directly impacts sustained power handling on PCB with minimal heatsinking |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), molded epoxy body with matte tin-plated leads; RoHS-compliant, commercial grade (E3 suffix); 0.968 g unit weight; 1400 pcs/reel (13" paper tape).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-impedance return in unidirectional configuration; must be routed with low-inductance trace |
| Cathode | Protected line connection / clamping node | Marked with color band; connects to line being protected (e.g., 24 V rail, RS-485 bus); carries full surge current during clamping |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated chip junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 1500 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge protection without external series impedance in many 24–48 V systems |
| Clamping voltage ≤246 V at 6.1 A | Provides margin below 280 V absolute maximum ratings of common 200 V MOSFETs and industrial controllers |
| Response time <1 ns | Acts before downstream ICs experience damaging overvoltage-critical for protecting high-speed interfaces and microcontrollers |
| Solderable per J-STD-002/JESD 22-B102 | Validated compatibility with standard reflow and wave soldering processes, including 275 °C dip for 10 s |
Applications
| Automotive Power Input Protection | Industrial PLC Digital I/O Protection |
|---|---|
Use Scenario: 12 V/24 V battery-fed ECUs exposed to load dump (ISO 16750-2) and jump-start surges. IC Role / Device Role / Timing Role: Primary clamping element placed between power rail and ground, absorbing >95 % of surge energy before it reaches DC-DC converters or MCU power pins. Use Value: Limits rail voltage to ≤246 V during 35 V/100 ms load dump events, preventing latch-up or gate oxide rupture in downstream regulators. |
Use Scenario: 24 V digital input modules receiving signals from field sensors across long cables in factory automation. IC Role / Device Role / Timing Role: Unidirectional TVS on each input channel, referenced to common ground, suppressing inductive kickback and EFT bursts (IEC 61000-4-4). Use Value: Clamps transients to safe levels within 1 ns, preserving signal integrity and eliminating false triggering of optocouplers or Schmitt triggers. |
| Telecom Line Interface Protection | Motor Drive Control Signal Protection |
Use Scenario: RS-485 transceivers connected to outdoor wiring in security or building management systems. IC Role / Device Role / Timing Role: Paired unidirectional TVS diodes (anode-to-ground, cathode-to-line) on A/B differential pairs, providing asymmetric surge suppression. Use Value: Maintains <250 V differential clamping while preserving common-mode noise rejection and data rates up to 10 Mbps. |
Use Scenario: PWM enable/control lines driving gate drivers in HVAC or pump inverters subject to motor commutation noise. IC Role / Device Role / Timing Role: Point-of-load TVS on logic-level control inputs to isolated gate drivers, shunting fast-rising edge-induced spikes. Use Value: Prevents unintended gate turn-on caused by dV/dt coupling, reducing risk of shoot-through and MOSFET failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ170A | DO-214AA package; lower PPPM (600 W); VBR = 189–210 V; VC = 275 V @ 2.2 A | Lower surge capacity suits space-constrained 3.3/5 V logic rails but insufficient for 24 V industrial load dump | Select SMBJ170A only when board area is critical and surge requirements are ≤Level 3 (2 kV) per IEC 61000-4-5 |
| 1.5KE180AHE3_B | Same 1.5KE package and electrical specs; AEC-Q101 qualified; HE3 suffix denotes whisker-tested leads | Required for automotive OEM production; supports extended temperature validation and PPAP documentation | Choose 1.5KE180AHE3_B for new automotive designs; 1.5KE180-E3/54 remains valid for industrial/commercial use |
Compared with 1.5KE180-E3/54, SMBJ170A offers smaller footprint but sacrifices 60 % peak power handling and higher clamping voltage, while 1.5KE180AHE3_B provides identical protection performance with certified automotive qualification-enabling drop-in replacement only where AEC-Q101 compliance is mandatory.
Availability
1.5KE180-E3/54 is available at Aetrix Electronics and suitable for automotive power systems, industrial PLC I/O modules, and telecom line interface circuits requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE180-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 high-reliability diodes, MOSFETs, and passive components for demanding industrial, automotive, and computing applications.
The 1.5KE series was engineered specifically for robust, high-energy transient suppression in DC power distribution networks-balancing clamping precision, surge endurance, and manufacturability in through-hole packages.
FAQ
What is the breakdown voltage tolerance of the 1.5KE180-E3/54?
The 1.5KE180-E3/54 has a specified breakdown voltage (VBR) range of 171 V to 189 V at 1.0 mA test current, representing ±5.6 % tolerance about the nominal 180 V rating. This tight tolerance ensures predictable clamping onset across production lots and temperature extremes, critical for coordinating with downstream overvoltage protection thresholds.
Can the 1.5KE180-E3/54 be used in bidirectional configurations?
No, the 1.5KE180-E3/54 is a unidirectional TVS diode and must not be used in bidirectional applications. Bidirectional variants require "CA" suffix (e.g., 1.5KE180CA); the 1.5KE180-E3/54 lacks symmetrical clamping characteristics and will conduct continuously in reverse bias above VWM, risking thermal failure.
What is the maximum clamping voltage of the 1.5KE180-E3/54 under surge conditions?
The 1.5KE180-E3/54 clamps to a maximum of 246 V when subjected to its rated peak pulse current of 6.1 A using the standardized 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and forms the basis for selecting downstream component voltage ratings.
How does the 1.5KE180-E3/54 handle repeated surge events?
The 1.5KE180-E3/54 is rated for repetitive surges at a maximum duty cycle of 0.01 % (e.g., 4 pulses per minute). Sustained or high-frequency transients exceeding this limit cause junction temperature rise beyond safe limits; thermal derating curves in the datasheet must be applied to determine allowable pulse repetition rate at elevated ambient temperatures.
Is the 1.5KE180-E3/54 RoHS compliant and lead-free?
Yes, the "E3" suffix in 1.5KE180-E3/54 explicitly denotes RoHS compliance and lead-free construction per EU Directive 2011/65/EU. The matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability standards, and the device passes JESD 201 Class 1A whisker testing.
1.5KE180-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 146V
- Voltage - Breakdown (Min):
- 162V
- Voltage - Clamping (Max) @ Ipp:
- 258V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- 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
1.5KE180-E3/54 FAQ
1.How can I place an order for 1.5KE180-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE180-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 1.5KE180-E3/54 reliable?
The price and inventory of 1.5KE180-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 1.5KE180-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE180-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE180-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE180-E3/54?
1.5KE180-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE180-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 1.5KE180-E3/54?
For technical support, including 1.5KE180-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE180-E3/54 requirements.
6.How does Aetrix verify that 1.5KE180-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE180-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 1.5KE180-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE180-E3/54?
All 1.5KE180-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE180-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 1.5KE180-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE180-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE180-E3/54 Tags
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