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Taiwan Semiconductor Corporation 1.5KE110
- Part No.:
- 1.5KE110
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE110.pdf
- Description:
- 1500W, 110V, 10%, UNIDIRECTIONAL
- Quantity:
- Payment:
- Shipping:
Inventory:7,679
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Product details
Overview
1.5KE110 from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 110V, minimum VBR = 99V at IT = 1.0mA, maximum clamping voltage VC = 158V at IPP = 9.9A, and working stand-off voltage VWM = 89.2V - designed for automotive load-dump and inductive switching surge protection in power supply rails.
For engineers reviewing the 1.5KE110 datasheet, 1.5KE110 pinout, 1.5KE110 application, or 1.5KE110 equivalent, this page delivers verified electrical parameters, DO-201 terminal polarity mapping, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance status, AEC-Q101 qualification availability, and real-world clamping performance data for high-energy transients.
Technical Context
The 1.5KE110 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 99–121V breakdown range; it clamps transient energy to ≤158V at 9.9A peak impulse current under 10/1000μs waveform, with dynamic impedance low enough to limit voltage overshoot during fast-rising surges.
Its junction temperature rating spans –55°C to +175°C, enabling use in under-hood automotive environments; thermal derating follows Fig.2 in the datasheet, and it supports steady-state power dissipation of 5W at TL = 75°C on 16mm × 16mm copper pad - confirming suitability for high-reliability DC bus protection without active cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min / max | 99V / 121V at IT = 1.0mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 89.2V - maximum continuous reverse operating voltage before leakage exceeds 1μA, ensuring no false conduction in normal operation |
| VC @ IPP | 158V at IPP = 9.9A (10/1000μs) - clamping voltage seen by protected circuit during worst-case surge |
| PPK | 1500W - peak pulse power handling capacity, validated per JEDEC standard for non-repetitive transients |
| TJ max | +175°C - maximum junction temperature, supporting placement near heat sources in automotive ECUs and industrial drives |
| Package | DO-201 - axial-leaded, UL 94V-0 molded case with pure tin-plated leads compliant to J-STD-002 solderability |
| Response time | <1.0ps - sub-picosecond turn-on enables protection of fast-edge digital interfaces and microcontroller I/O |
Pinout & Package
DO-201 package: axial leaded, cylindrical epoxy body with cathode band marking; 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 (unmarked end) | Ground reference node | Connected to system ground or low-side return path; conducts during forward surge (IFSM = 200A) |
| Cathode (banded end) | Protected line input | Connected to line being protected (e.g., 12V/24V rail); blocks VWM, avalanches above VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified option | 1.5KE110A variant available - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| ISO 7637-2 compliance | Validated against Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line capacitance discharge) |
| Low dynamic impedance | Enables tight clamping window (VC – VBR ≈ 59V) even at 9.9A, minimizing stress on downstream MOSFETs or regulators |
| RoHS & halogen-free | Meets IEC 61249-2-21; UL 94V-0 flammability rating ensures safety in enclosed enclosures and battery systems |
| Fast response | <1.0ps turn-on from 0V to VBR - protects high-speed CAN, LIN, and sensor signal lines from EFT-induced latch-up |
Applications
| Automotive Power Rail Protection | Industrial DC Motor Drive |
|---|---|
|
Use Scenario: 12V/24V battery-fed control modules exposed to load-dump transients up to 120V per ISO 7637-2 Pulse 5a. IC Role / Device Role: Primary clamping device across input rail, placed upstream of DC-DC converters and MCU power supplies. Use Value: Limits rail voltage to ≤158V during 1500W surge, preventing damage to 36V-rated input capacitors and LDOs. |
Use Scenario: H-bridge motor driver PCB subjected to inductive kickback during PWM switching and emergency stop. IC Role / Device Role: Unidirectional TVS across motor supply rail to absorb flyback energy from 100mH+ inductors. Use Value: Clamps 9.9A transient within 10/1000μs, reducing MOSFET drain-source voltage overshoot below breakdown limit. |
| Telecom Power Interface | LED Streetlight Driver |
|
Use Scenario: PoE-powered remote unit with external 48V DC input subject to lightning-induced surges on outdoor cabling. IC Role / Device Role: First-stage surge protector before primary DC-DC stage and Ethernet PHY power conditioning. Use Value: Withstands 1500W single-event surge while maintaining VWM = 89.2V - compatible with 48V nominal input with margin. |
Use Scenario: Outdoor LED driver exposed to grid transients and nearby lightning strikes in municipal lighting infrastructure. IC Role / Device Role: Line-to-ground TVS on AC/DC rectified output rail protecting constant-current LED controller ICs. Use Value: 175°C junction rating allows direct mounting on heatsinked driver board without thermal derating penalties. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110A | 600W rating, SMC package, VC = 177V @ 5.3A - lower peak power, higher clamping voltage, surface-mount only | Best for space-constrained PCBs where 1500W surge is not required; unsuitable for ISO 7637-2 Pulse 5a compliance | Select SMBJ110A only if layout prohibits axial DO-201 and surge energy is limited to ≤600W |
| 1.5KE110A | Same electrical specs but AEC-Q101 qualified; identical VBR, VC, and PPK; marked with "A" suffix and "H" in ordering code for automotive grade | Required for automotive OEM designs needing PPAP documentation and extended reliability validation | Choose 1.5KE110A for any automotive application; 1.5KE110 remains valid for industrial/commercial use |
Compared with SMBJ110A, the 1.5KE110 delivers 2.5× higher surge power and tighter clamping, while the 1.5KE110A offers identical protection with certified automotive qualification - making the base 1.5KE110 optimal for cost-sensitive industrial designs requiring full 1500W capability in through-hole format.
Availability
1.5KE110 is available at Aetrix Electronics and suitable for automotive ECU power rails, industrial motor drive DC buses, telecom power interfaces, and outdoor LED driver systems requiring stable component supply and long-term obsolescence management.
Supply support for 1.5KE110 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 certification capability.
The 1.5KE series was developed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing robustness under ISO 7637-2 and wide temperature operation from –55°C to +175°C.
FAQ
What is the key difference between 1.5KE110 and 1.5KE110A?
The 1.5KE110A is the AEC-Q101 qualified version of the 1.5KE110, with identical electrical specifications - including VBR = 105–116V, VC = 152V @ 10.3A, and PPK = 1500W - but validated for automotive reliability requirements such as temperature cycling, highly accelerated life testing, and ESD immunity. The 1.5KE110 remains fully functional for industrial applications where AEC-Q101 is not mandated.
Does the 1.5KE110 meet ISO 7637-2 for automotive applications?
Yes, the 1.5KE110 meets ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b test requirements as documented in Taiwan Semiconductor's official datasheet. It is explicitly rated for inductive switching transients and electrical fast transients, though for full load-dump (Pulse 5a) compliance, the AEC-Q101-qualified 1.5KE110A variant is recommended due to additional validation scope.
What is the maximum clamping voltage of the 1.5KE110 under surge conditions?
The 1.5KE110 has a maximum clamping voltage VC of 158V at peak impulse current IPP = 9.9A using the standardized 10/1000μs double-exponential waveform. This value is measured per JEDEC standards and represents the highest voltage imposed on the protected circuit during a worst-case 1500W transient event.
Can the 1.5KE110 be used in bidirectional configurations?
No - the 1.5KE110 is a unidirectional TVS diode, intended for DC rail protection with defined anode/cathode polarity. For bidirectional protection, select the bipolar 1.5KE110CA variant (not 1.5KE110), which provides symmetrical clamping in both directions and is designated with "C" or "CA" suffix per the ordering table.
What is the thermal derating behavior of the 1.5KE110 above 25°C ambient?
The 1.5KE110 follows the pulse derating curve in Figure 2 of the datasheet: peak power capability decreases linearly above 25°C ambient, reaching ~75% of 1500W at 75°C and ~50% at 125°C. For continuous operation, its steady-state power dissipation is rated at 5W when mounted on a 16mm × 16mm copper pad at TL = 75°C - critical for thermal design in enclosed housings.
1.5KE110 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):
- 89.2V
- Voltage - Breakdown (Min):
- 99V
- Voltage - Clamping (Max) @ Ipp:
- 158V
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE110 FAQ
1.How can I place an order for 1.5KE110 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE110 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 1.5KE110 reliable?
The price and inventory of 1.5KE110 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE110 is usually 5 days.
3.What payment methods are accepted for 1.5KE110?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE110 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE110?
1.5KE110 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE110 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 1.5KE110?
For technical support, including 1.5KE110 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE110 requirements.
6.How does Aetrix verify that 1.5KE110 is sourced from the original manufacturer or authorized distributors?
All 1.5KE110 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 1.5KE110 meets industry standards.
7.What is the process for return or replacement of 1.5KE110?
All 1.5KE110 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE110, 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 1.5KE110 part is unused and in its original packaging.
Return procedure for 1.5KE110:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE110 Tags
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