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Taiwan Semiconductor Corporation 1V5KE110A
- Part No.:
- 1V5KE110A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE110A.pdf
- Description:
- TVS DIODE 94VWM 152VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:6,387
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Product details
Overview
1V5KE110A from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with breakdown voltage 106–116 V at 1 mA test current, reverse stand-off voltage 94.0 V, clamping voltage 152 V at 9.9 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, AC/DC power supplies, and telecom interface circuits against ESD and lightning-induced surges.
For engineers reviewing the 1V5KE110A datasheet, 1V5KE110A pinout, 1V5KE110A application, or 1V5KE110A equivalent, key selection criteria include its 94.0 V reverse stand-off rating, 152 V clamping performance at 9.9 A, DO-201 mechanical compatibility, unidirectional polarity marking, and 175°C maximum junction temperature for high-reliability thermal environments.
Technical Context
The 1V5KE110A operates as a silicon avalanche diode, triggered when transient voltage exceeds its reverse stand-off voltage (VRWM = 94.0 V), entering low-impedance clamping mode within nanoseconds. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<5 µA at VRWM).
Designed for single-pulse 10/1000 µs waveform compliance, it delivers 1500 W peak pulse power at 1 ms with incremental surge resistance optimized for minimal voltage overshoot during fast transients. It is not rated for repetitive surge duty without derating per Fig.2 and Fig.5.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 94.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 106 V / 116 V at IT = 1 mA - Confirmed avalanche breakdown window for reliable triggering |
| VC @ IPPM | 152 V at 9.9 A - Clamped voltage seen by protected circuit during 10/1000 µs surge |
| PPPM | 1500 W - Peak pulse power handling per JEDEC standard (Tp = 1 ms) |
| TJ max | +175 °C - Enables operation in high-ambient environments like enclosed power converters |
| IR @ VRWM | <5 µA - Low leakage preserves system standby power integrity |
| Package | DO-201 - Standard axial-leaded through-hole package with tin-plated leads (J-STD-002 compliant) |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking. Lead length 0.375 inch; weight ≈ 0.090 g; UL 94V-0 rated molding compound; RoHS and halogen-free compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND) in unidirectional TVS configuration |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to protected line (e.g., 48 V rail); avalanche conduction occurs when voltage exceeds VRWM |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and improved moisture resistance vs. non-passivated alternatives |
| 1500 W peak pulse power (1 ms) | Supports IEC 61000-4-5 Level 4 (4 kV surge) protection on 48 V DC systems without cascading devices |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage stress on downstream MOSFETs or controllers during surge events |
| Fast response time (<1 ns) | Clamps transients before sensitive ICs experience latch-up or gate oxide damage |
Applications
| Industrial Motor Drives | AC/DC Power Supplies |
|---|---|
Use Scenario: Protection of gate driver supply rails against inductive kickback from IGBT/MOSFET switching. IC Role / Device Role: Unidirectional TVS placed between VDD and GND of isolated gate driver ICs. Use Value: Clamps 152 V spikes at 9.9 A, preventing driver IC overvoltage failure while maintaining 94 V normal operation margin. | Use Scenario: Input-stage surge suppression on 110 VAC rectified bus before bulk capacitor. IC Role / Device Role: Primary-side transient clamp across DC link, coordinated with MOV and fuse. Use Value: Handles 1500 W single-event surges without degradation, enabling compact design vs. multi-stage solutions. |
| Telecom Interface Cards | Building Automation Controllers |
Use Scenario: Ethernet PHY port protection on PoE-powered switches against EFT and lightning coupling. IC Role / Device Role: Secondary-level TVS on 48 V bias rail feeding magnetics and PHY ICs. Use Value: 175°C TJ rating allows placement near heat-generating magnetics without thermal derating loss. | Use Scenario: RS-485 transceiver bus line protection in HVAC control panels exposed to field wiring transients. IC Role / Device Role: Unidirectional clamp from A/B lines to local ground, referenced to common-mode voltage. Use Value: 9.9 A IPPM supports >1 kV IEC 61000-4-4 EFT immunity without clamping voltage exceeding transceiver absolute max ratings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A | Same VRWM (94 V) and VC (152 V), but SMB package (surface-mount), 1000 W PPPM | Requires PCB rework for SMT layout; lower power rating limits use in high-energy surge zones | Select when board space is constrained and surge energy is ≤1000 W |
| 1N6296A | Identical electrical specs and DO-201 package; same manufacturer, legacy JEDEC part number | No functional difference; used interchangeably in legacy designs and BOMs | Preferred for drop-in replacement where original design references JEDEC nomenclature |
Compared with SMBJ110A and 1N6296A, the 1V5KE110A offers full 1500 W surge capability in through-hole DO-201, making it optimal for high-reliability industrial power stages where mechanical robustness and thermal mass matter - unlike SMBJ110A's SMT limitation or 1N6296A's identical spec but older marking convention.
Availability
1V5KE110A is available at Aetrix Electronics and suitable for industrial motor drives, AC/DC power supplies, and telecom interface cards requiring stable component supply, long-term lifecycle support, and consistent DO-201 mechanical form factor.
Supply support for 1V5KE110A 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, serving global industrial, automotive, and consumer markets since 1979.
The 1V5KE series belongs to TSC's high-power TVS diode product line, engineered specifically for robust transient immunity in harsh-environment power conversion and interface protection applications.
FAQ
What is the reverse stand-off voltage (VRWM) of the 1V5KE110A?
The 1V5KE110A has a reverse stand-off voltage (VRWM) of 94.0 V, meaning it remains in high-impedance blocking mode up to this DC or RMS voltage level. This value ensures compatibility with 48 V and 110 V DC systems where transient clamping must not interfere with normal operation. The 1V5KE110A maintains leakage below 5 µA at this voltage, preserving system efficiency.
Does the 1V5KE110A have bidirectional capability?
No, the 1V5KE110A is a unidirectional TVS diode, indicated by the absence of "C" suffix in its full designation. It conducts only during reverse overvoltage events - forward conduction follows standard diode behavior. For bidirectional protection, the equivalent part is 1V5KE110CA, which features symmetrical clamping in both polarities and uses the same DO-201 package.
What is the clamping voltage of the 1V5KE110A at its rated peak pulse current?
The 1V5KE110A clamps to 152 V at its specified peak pulse current (IPPM) of 9.9 A under the standard 10/1000 µs waveform. This clamping voltage is measured across the device terminals during surge conduction and defines the maximum overvoltage imposed on the protected circuit - critical for ensuring downstream components remain within their absolute maximum ratings.
Is the 1V5KE110A RoHS and halogen-free compliant?
Yes, the 1V5KE110A meets RoHS Directive 2011/65/EU requirements and is halogen-free per IEC 61249-2-21. Its molding compound is UL 94V-0 rated, and its pure tin-plated leads comply with J-STD-002 for solderability. These certifications confirm suitability for environmentally regulated industrial and telecom equipment.
What is the maximum junction temperature rating for the 1V5KE110A?
The 1V5KE110A has a maximum junction temperature (TJ max) of +175°C, allowing reliable operation in thermally demanding environments such as enclosed power supplies, motor drive cabinets, and outdoor telecom enclosures. This rating supports extended lifetime under sustained ambient temperatures up to 125°C when mounted with appropriate thermal relief per JEDEC guidelines.
1V5KE110A 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):
- 94V
- Voltage - Breakdown (Min):
- 106V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 9.9A
- 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
1V5KE110A FAQ
1.How can I place an order for 1V5KE110A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE110A 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 1V5KE110A reliable?
The price and inventory of 1V5KE110A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE110A is usually 5 days.
3.What payment methods are accepted for 1V5KE110A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE110A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE110A?
1V5KE110A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE110A 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 1V5KE110A?
For technical support, including 1V5KE110A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE110A requirements.
6.How does Aetrix verify that 1V5KE110A is sourced from the original manufacturer or authorized distributors?
All 1V5KE110A 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 1V5KE110A meets industry standards.
7.What is the process for return or replacement of 1V5KE110A?
All 1V5KE110A units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE110A, 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 1V5KE110A part is unused and in its original packaging.
Return procedure for 1V5KE110A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1V5KE110A Tags
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