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Taiwan Semiconductor Corporation 1V5KE180A
- Part No.:
- 1V5KE180A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE180A.pdf
- Description:
- TVS DIODE 154VWM 246VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:8,018
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Product details
Overview
1V5KE180A from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with breakdown voltage 171–189 V at 1 mA test current, reverse stand-off voltage 154 V, clamping voltage 246 V at 6.1 A peak pulse current, and junction temperature range −55°C to +175°C. It protects power rails and I/O lines in industrial motor drives and AC/DC front-end circuits against lightning-induced surges and inductive switching transients.
For engineers reviewing the 1V5KE180A datasheet, 1V5KE180A pinout, 1V5KE180A application, or 1V5KE180A equivalent, key selection criteria include verified clamping performance at 6.1 A IPPM, DO-201 mechanical compatibility with high-surge PCB layouts, unidirectional polarity marking, and compliance with JEDEC JESD201 Class 2 whisker resistance and UL 94V-0 molding compound standards.
Technical Context
The 1V5KE180A operates as a silicon avalanche diode, triggered by reverse-biased overvoltage events exceeding its 154 V VRWM. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance during 10/1000 µs waveform transients.
It delivers 1500 W peak pulse power at 1 ms, with fast response time (<1 ns), typical reverse leakage <1 µA above 10 V, and thermal derating to 5 W at 75°C ambient with 0.375″ lead length - enabling robust protection in high-temperature industrial enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 154 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 171 V / 189 V at 1 mA - guaranteed avalanche initiation window for reliable overvoltage thresholding |
| VC @ IPPM | 246 V at 6.1 A - clamped voltage during full-rated 1500 W surge, defining protected circuit stress level |
| PPPM | 1500 W - peak pulse power handling per 1 ms 10/1000 µs waveform, per JEDEC standard |
| TJ max | +175 °C - maximum junction temperature, supporting operation in sealed industrial environments |
| IR @ VRWM | <5 µA - low leakage ensures minimal standby power loss in always-on systems |
| Package | DO-201 - axial-leaded through-hole package with 0.090 g mass, UL 94V-0 rated epoxy |
Pinout & Package
DO-201 package: axial-leaded, cylindrical body with cathode band marking for unidirectional polarity. Leads are pure tin-plated, solderable per J-STD-002, and meet JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; defines current flow direction during clamping |
| Cathode | Protected line terminal | Connected to line under protection (e.g., DC bus, signal rail); marked with band; carries surge current into ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress without parameter drift |
| 1500 W peak pulse rating | Supports IEC 61000-4-5 Level 4 (4 kV line-to-line) surge immunity without degradation |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving protection margin for downstream ICs |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive, enabling use in green-certified industrial equipment |
| Fast response time | <1 ns turn-on enables clamping before sensitive components experience damaging overvoltage |
Applications
| Industrial Motor Drive Protection | AC/DC Power Supply Input Stage |
|---|---|
Use Scenario: Protects gate drivers and current sense amplifiers from flyback voltage spikes generated by IGBT switching in 3-phase inverters. IC Role / Device Role: Unidirectional TVS placed across DC bus rails to clamp inductive kickback transients. Use Value: Limits transient voltage to ≤246 V, preventing latch-up or oxide rupture in 300 V-rated gate drivers. | Use Scenario: Shields rectifier output and PFC controller inputs from lightning-induced surges on mains input. IC Role / Device Role: Primary-side surge suppressor mounted between bridge rectifier output and bulk capacitor. Use Value: Absorbs 1500 W pulses without failure, maintaining system uptime in outdoor-rated power supplies. |
| Programmable Logic Controller I/O Protection | Telecom Power Feeding Interface |
Use Scenario: Safeguards 24 V digital input modules against ESD and cable discharge events in factory automation cabinets. IC Role / Device Role: Line-to-ground TVS on each isolated input channel, paired with series current-limiting resistor. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) to safe levels while adding <1 pF capacitance to preserve signal integrity. | Use Scenario: Protects -48 V DC feeding interface of remote radio units from induced surges on long outdoor feeder cables. IC Role / Device Role: Unidirectional TVS connected anode-to-ground, cathode-to-feed line, blocking reverse polarity faults. Use Value: Withstands repeated 10/1000 µs surges up to 6.1 A while maintaining <5 µA leakage at nominal -48 V bias. |
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; 180 V VBR min/max tighter (171–189 V same), but lower PPPM (400 W) | Lower power rating limits use to sub-1 kV surge environments; unsuitable for IEC 61000-4-5 Level 4 | Select only where space-constrained SMT layout prohibits axial DO-201 and surge energy is ≤400 W |
| ON Semiconductor 1.5KE180A | Identical electrical specs (VBR, VRWM, VC, PPPM), same DO-201 package, but lead finish is matte tin vs. pure tin; RoHS compliant | No functional difference; validated in same industrial power designs; minor plating variation affects solder wetting profile only | Drop-in replacement where supply chain diversification is required; no PCB or firmware changes needed |
Compared with SMAJ180A and 1.5KE180A, the 1V5KE180A provides full 1500 W surge capability in the legacy DO-201 through-hole form factor, while offering identical clamping performance to ON Semiconductor's 1.5KE180A - making it ideal for high-reliability industrial replacements where axial mounting and proven surge endurance are mandatory.
Availability
1V5KE180A is available at Aetrix Electronics and suitable for industrial motor drives, AC/DC power supply input stages, and programmable logic controller I/O protection requiring stable component supply and long-lifecycle support.
Supply support for 1V5KE180A 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power devices, TVS diodes, rectifiers, and MOSFETs for industrial and automotive markets.
The 1V5KExxA series is part of TSC's high-power TVS platform designed specifically for ruggedized overvoltage protection in harsh-environment power conversion and control systems - emphasizing surge endurance, thermal stability, and JEDEC-compliant reliability.
FAQ
What is the breakdown voltage range of the 1V5KE180A?
The 1V5KE180A has a guaranteed breakdown voltage (VBR) range of 171 V to 189 V at 1 mA test current, measured per JEDEC standards. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage threshold design in 150–200 V DC systems. The 1V5KE180A's VBR window is confirmed in Taiwan Semiconductor's D2112 datasheet revision.
Is the 1V5KE180A unidirectional or bidirectional?
1V5KE180A is a unidirectional TVS diode, indicated by the absence of "C" suffix in its full ordering code. It features a cathode band marking and conducts only in reverse bias during overvoltage events. Bidirectional variants are designated as 1V5KE180CA and exhibit symmetrical clamping in both polarities - the 1V5KE180A must not be substituted for bidirectional use without circuit redesign.
What is the clamping voltage of the 1V5KE180A at its rated peak pulse current?
The 1V5KE180A clamps to a maximum of 246 V when subjected to its rated peak pulse current of 6.1 A (10/1000 µs waveform). This VC value defines the maximum voltage imposed on protected circuitry during a full 1500 W surge event. The 1V5KE180A's clamping ratio (VC/VBR) is approximately 1.37, reflecting efficient avalanche energy absorption.
Does the 1V5KE180A comply with RoHS and halogen-free requirements?
Yes, the 1V5KE180A is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound meets UL 94V-0 flammability rating, and leads are pure tin plated - satisfying environmental and safety mandates for industrial and telecom equipment. These certifications are documented in Taiwan Semiconductor's official product specification D2112 for the 1V5KE180A.
What is the maximum junction temperature rating for the 1V5KE180A?
The 1V5KE180A has a maximum junction temperature (TJ) rating of +175°C, allowing reliable operation in high-ambient environments such as enclosed motor drive cabinets or outdoor power converters. Derating curves show usable power dissipation down to 5 W at 75°C ambient with 0.375″ lead length - critical for thermal design validation of the 1V5KE180A in convection-cooled assemblies.
1V5KE180A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AD, Axial
- Series:
- -
- 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:
- DO-201AD
1V5KE180A FAQ
1.How can I place an order for 1V5KE180A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE180A 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 1V5KE180A reliable?
The price and inventory of 1V5KE180A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE180A is usually 5 days.
3.What payment methods are accepted for 1V5KE180A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE180A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE180A?
1V5KE180A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE180A 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 1V5KE180A?
For technical support, including 1V5KE180A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE180A requirements.
6.How does Aetrix verify that 1V5KE180A is sourced from the original manufacturer or authorized distributors?
All 1V5KE180A 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 1V5KE180A meets industry standards.
7.What is the process for return or replacement of 1V5KE180A?
All 1V5KE180A units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE180A, 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 1V5KE180A part is unused and in its original packaging.
Return procedure for 1V5KE180A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1V5KE180A Tags
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