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Taiwan Semiconductor Corporation 1.5KE180
- Part No.:
- 1.5KE180
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE180.pdf
- Description:
- 1500W, 180V, 10%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:9,447
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Product details
Overview
1.5KE180 from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode with a nominal breakdown voltage of 180V, VBR range 162–198V at 1mA test current, VWM = 146V, and clamping voltage VC = 258V at 6.1A peak impulse current. It is housed in a DO-201 axial package and used for high-energy surge protection in automotive power rails and industrial DC supplies.
For engineers reviewing the 1.5KE180 datasheet, 1.5KE180 pinout, 1.5KE180 application, or 1.5KE180 equivalent, key selection criteria include its 1500W 10/1000μs surge rating, low dynamic impedance, AEC-Q101 qualification option, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, and unidirectional polarity marking.
Technical Context
The 1.5KE180 operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its VBR (162–198V), clamping transients to ≤258V at 6.1A. Its fast response time is typically less than 1.0ps from 0V to VBR, and it exhibits <1μA leakage above 10V.
Designed for non-repetitive surge suppression, it delivers 1500W peak pulse power at TA = 25°C, derating linearly above that temperature, with maximum junction temperature of 175°C and storage range from –55°C to +175°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1mA | 162–198V - defines precise avalanche initiation threshold under standardized test conditions |
| VWM | 146V - maximum continuous reverse working voltage before leakage rises significantly |
| VC @ IPP = 6.1A | 258V - clamped voltage during 10/1000μs surge, limiting stress on downstream circuitry |
| PPK | 1500W - peak pulse power handling capability per JEDEC standard waveform |
| IPP | 6.1A - maximum non-repetitive peak impulse current at rated clamping voltage |
| Junction Temp (TJ) | –55°C to +175°C - operational thermal range enabling use in under-hood automotive environments |
| Package | DO-201 - industry-standard axial leaded package with tin-plated leads, UL 94V-0 molding compound |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking for unidirectional polarity. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side in unidirectional configuration; carries forward surge current up to 200A (8.3ms half-sine) |
| Cathode | Avalanche clamping terminal | Marked with band; connected to protected line; conducts reverse surge current to ground during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| 1500W surge rating | Enables robust protection against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients in 12V/24V automotive systems |
| Clamping voltage ≤258V | Ensures downstream 300V-rated components remain within safe operating limits during 6.1A surges |
| Leakage <1μA @ >10V | Minimizes standby power loss and avoids false triggering in high-impedance sensing circuits |
| AEC-Q101 qualified variant available | Supports automotive-grade reliability requirements including temperature cycling, HTRB, and ESD testing |
| Response time <1.0ps | Provides near-instantaneous clamping before sensitive ICs experience damaging overvoltage |
Applications
| Automotive Power Rail Protection | Industrial DC Supply Protection |
|---|---|
Use Scenario: Suppressing load dump and alternator ripple transients on 24V truck battery lines. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across input rail to shunt surge energy to chassis ground. Use Value: Clamps 120V/200A load dump spikes to ≤258V, protecting DC-DC converters and microcontrollers rated for 300V max. | Use Scenario: Guarding programmable logic controller (PLC) 24V DC inputs against inductive switching spikes from solenoid valves. IC Role / Device Role / Timing Role: Standoff protector mounted at field-wiring entry point to absorb 10/1000μs inductive kickback. Use Value: Limits transient overshoot to 258V with 6.1A peak current handling, preventing latch-up in isolated input buffers. |
| Lighting System Surge Suppression | ESD-Prone Sensor Interface Protection |
Use Scenario: Protecting LED driver modules in commercial street lighting from lightning-induced surges on AC mains input. IC Role / Device Role / Timing Role: Primary-level unidirectional TVS on rectified DC bus after bridge rectifier. Use Value: Absorbs 1500W surges without degradation, maintaining VWM = 146V to avoid conduction during normal 170V DC bus operation. | Use Scenario: Shielding automotive ambient light sensor analog output from ESD events during assembly or service. IC Role / Device Role / Timing Role: Low-leakage (≤1μA) TVS placed directly at connector interface before signal conditioning op-amp. Use Value: Prevents op-amp input stage damage while introducing negligible offset error due to sub-microamp reverse bias current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ180A | Same DO-214AC (SMA) package, 180V nominal, 1500W rating, but VC = 292V @ 5.1A - higher clamping voltage | Higher VC reduces margin for 300V-rated downstream devices; better suited for less sensitive loads | Select if board layout requires surface-mount and system can tolerate 34V higher clamping |
| ON Semiconductor 1.5SMC180A | DO-214AB (SMC) package, same 180V/1500W rating, VC = 259V @ 5.8A - nearly identical clamping performance | SMC footprint differs from DO-201; requires PCB redesign but offers higher thermal mass | Choose when enhanced thermal dissipation is needed and axial lead rework is not feasible |
Compared with 1.5KE180, SMAJ180A trades lower clamping performance for SMT compatibility, while 1.5SMC180A matches clamping closely but demands larger SMC footprint and revised layout-neither is pin-compatible, and all three require mechanical and thermal validation in final design.
Availability
1.5KE180 is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and outdoor lighting applications requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE180 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, and rectifiers, with global distribution and AEC-Q101 qualified product lines.
The 1.5KE series was designed specifically for high-energy transient suppression in harsh environments-including automotive, industrial, and transportation systems-emphasizing reliability, surge robustness, and compliance with ISO 7637-2.
FAQ
What is the breakdown voltage range for the 1.5KE180?
The 1.5KE180 has a guaranteed breakdown voltage (VBR) range of 162V to 198V at 1mA test current, measured per ANSI/IEEE C62.35. This tolerance ensures consistent avalanche initiation across production lots while allowing design margin for worst-case overvoltage scenarios in 24V and 48V systems.
Is the 1.5KE180 unidirectional or bidirectional?
1.5KE180 is a unidirectional TVS diode, indicated by its single cathode band marking and specification of forward voltage (VF = 3.5V @ 50A). Bidirectional variants in the same family carry "CA" suffixes (e.g., 1.5KE180CA); the 1.5KE180 does not support symmetrical clamping in both polarities.
What is the maximum clamping voltage of the 1.5KE180 under surge conditions?
The 1.5KE180 clamps to a maximum of 258V at 6.1A peak impulse current (IPP) under the standard 10/1000μs waveform. This value is specified in the Electrical Specifications table and represents the upper limit of voltage seen by protected circuitry during full-rated surge events.
Does the 1.5KE180 meet automotive reliability standards?
The base 1.5KE180 is not AEC-Q101 qualified; however, the 1.5KE180A variant (with "A" suffix) is explicitly listed as AEC-Q101 qualified in Taiwan Semiconductor's documentation. For automotive applications requiring qualification, specify 1.5KE180A-not 1.5KE180-to ensure compliance with stress testing requirements.
What package type does the 1.5KE180 use, and what are its mechanical features?
The 1.5KE180 uses the DO-201 axial package: cylindrical epoxy body with tinned copper leads, UL 94V-0 flammability rating, and cathode band polarity marking. It weighs approximately 0.090g and is supplied in tape-and-reel (1250 pcs) or ammo box (500 pcs) packaging per ordering code 1.5KE180 or 1.5KE180A0G.
1.5KE180 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE180 FAQ
1.How can I place an order for 1.5KE180 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE180 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 reliable?
The price and inventory of 1.5KE180 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 is usually 5 days.
3.What payment methods are accepted for 1.5KE180?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE180 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE180?
1.5KE180 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE180 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?
For technical support, including 1.5KE180 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE180 requirements.
6.How does Aetrix verify that 1.5KE180 is sourced from the original manufacturer or authorized distributors?
All 1.5KE180 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 meets industry standards.
7.What is the process for return or replacement of 1.5KE180?
All 1.5KE180 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE180, 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 part is unused and in its original packaging.
Return procedure for 1.5KE180:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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