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Taiwan Semiconductor Corporation 1.5KE110C
- Part No.:
- 1.5KE110C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE110C.pdf
- Description:
- 1500W, 110V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:9,698
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Product details
Overview
1.5KE110C from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 110 V, working stand-off voltage 89.2 V, clamping voltage 158 V at 9.9 A peak pulse current, and junction temperature range −55 °C to +175 °C - used for automotive ECU power rail protection against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE110C datasheet, 1.5KE110C pinout, 1.5KE110C application, or 1.5KE110C equivalent, key selection criteria include unidirectional polarity, 10/1000 μs surge rating, low dynamic impedance, sub-1 ps response time, and AEC-Q101 qualification status where applicable.
Technical Context
The 1.5KE110C operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 99–121 V breakdown range (tested at 1 mA). It clamps transient energy by diverting surge current up to 9.9 A (10/1000 μs waveform) while limiting voltage to ≤158 V across the protected line.
Its thermal design supports operation up to 175 °C junction temperature, with steady-state power dissipation of 5 W at 75 °C lead temperature on a 16 mm × 16 mm copper pad. Leakage current remains ≤1 μA above 10 V, ensuring minimal standby loading on sensitive 12 V or 24 V automotive circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR min/max | 99 V / 121 V - defines minimum and maximum voltage at which avalanche conduction begins under 1 mA test current; ensures consistent triggering across production lots. |
| VWM | 89.2 V - maximum continuous reverse operating voltage; must exceed system nominal voltage (e.g., 24 V or 48 V bus) with safety margin. |
| VC@IPP | 158 V - clamped voltage at 9.9 A peak impulse current; determines maximum stress imposed on downstream ICs during surge events. |
| PPK | 1500 W - peak pulse power handling capability per 10/1000 μs waveform; enables robust protection against load dump and inductive switching spikes. |
| TJ max | +175 °C - maximum junction temperature; supports under-hood automotive placement without derating in high-ambient environments. |
| IR@VWM | <1 μA - reverse leakage at working voltage; avoids parasitic current draw in battery-critical applications like always-on ECUs. |
Pinout & Package
Package: DO-201 axial-leaded plastic case with cathode band marking; RoHS-compliant, halogen-free molding compound rated UL 94V-0; pure tin-plated leads solderable per J-STD-002; meets JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; forms current sink during transient clamping. |
| Cathode | Protected line input | Connected to power rail (e.g., battery+, ignition-switched 12 V); blocks normal operation but conducts during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Surge capability | 1500 W at 10/1000 μs - handles automotive load dump and ISO 7637-2 Pulse 5a without failure. |
| Response time | <1.0 ps - faster than most microsecond-scale protection devices, enabling suppression before sensitive logic is damaged. |
| Clamping ratio | VC/VBR ≈ 1.32 - low ratio indicates efficient voltage limiting with minimal overvoltage overshoot. |
| AEC-Q101 option | Available with "H" suffix (e.g., 1.5KE110CH) - qualified for automotive electronics per stress-test requirements including temperature cycling and HTRB. |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting engine control unit (ECU) 12 V supply against load dump transients up to 120 V and 100 ms duration per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery+ and ground, conducting only during reverse overvoltage events to clamp rail voltage below 160 V. Use Value: Prevents permanent damage to MCU power management ICs and CAN transceivers by limiting peak rail voltage to 158 V at 9.9 A surge current. | Use Scenario: Safeguarding 24 V DC digital input channels of programmable logic controllers against EFT bursts and inductive kickback from solenoid valves. IC Role / Device Role / Timing Role: Standoff protector on field-side input traces, absorbing repetitive 5 kHz EFT pulses (IEC 61000-4-4) without degradation. Use Value: Maintains signal integrity and prevents false triggering by limiting transient voltage to ≤158 V within nanoseconds, preserving input threshold margins of Schmitt-trigger receivers. |
| LED Driver Overvoltage Clamp | Telecom Line Surge Suppression |
Use Scenario: Shielding constant-current LED driver ICs from 48 V bus surges caused by hot-swap events or capacitor discharge in streetlight systems. IC Role / Device Role / Timing Role: Primary clamping device on HV input rail, activated before internal MOSFETs reach avalanche limit. Use Value: Extends driver lifetime by eliminating repeated exposure to >110 V transients, with <1 μA leakage avoiding standby current waste in solar-powered units. | Use Scenario: Front-end protection for PoE-powered network switches exposed to lightning-induced surges on Ethernet pairs. IC Role / Device Role / Timing Role: First-stage unidirectional suppressor on DC bias lines, coordinated with gas discharge tubes and common-mode chokes. Use Value: Limits differential-mode surge voltage to 158 V before reaching IEEE 802.3af/at compliance circuitry, meeting IEC 61000-4-5 Level 3 (1 kV/2 kA) requirements. |
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 SMAJ110A | Same DO-214AC (SMA) package; lower PPK = 400 W; VBR = 122–135 V; bidirectional variant standard. | Lower surge rating limits use to non-load-dump scenarios; SMA footprint requires PCB redesign vs. DO-201 axial leads. | Select when space-constrained layouts prioritize surface-mount assembly and surge demands are ≤400 W. |
| Vishay 1N6296 | Identical JEDEC type number and electrical specs; manufactured by Vishay under same 1.5KE family spec; DO-201 package, same pinout and marking. | No functional difference; dual-sourced alternative with identical performance and qualification profile. | Choose for supply chain diversification without design change - verified drop-in replacement per datasheet cross-reference. |
Compared with Littelfuse SMAJ110A, the 1.5KE110C delivers 3.75× higher surge power and axial through-hole mounting; versus Vishay 1N6296, it offers identical specification compliance and mechanical form, enabling seamless second-source procurement without layout or validation impact.
Availability
1.5KE110C is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC input conditioning, LED driver clamping, and telecom PoE line safeguarding requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE110C 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, rectifiers, and analog ICs for automotive, industrial, and consumer markets.
The 1.5KE series was designed specifically for high-energy transient suppression in harsh environments - emphasizing AEC-Q101 qualification, wide temperature operation, and repeatable clamping performance under ISO 7637-2 and IEC 61000-4-x stress profiles.
FAQ
What is the polarity configuration of the 1.5KE110C?
The 1.5KE110C is a unidirectional TVS diode, with cathode marked by a band on the DO-201 body. It conducts only when reverse-biased beyond its breakdown voltage (99–121 V), making it suitable for DC power rail protection where polarity is fixed. Unlike bidirectional variants (e.g., 1.5KE110CA), it does not conduct on positive transients relative to ground.
Does the 1.5KE110C meet AEC-Q101 qualification standards?
The base 1.5KE110C is not AEC-Q101 qualified; however, Taiwan Semiconductor offers the AEC-Q101-compliant version as 1.5KE110CH (with "H" suffix). This variant undergoes extended stress testing including temperature cycling, high-temperature reverse bias, and unbiased highly accelerated stress testing - confirming suitability for automotive powertrain and chassis applications.
What is the maximum clamping voltage of the 1.5KE110C at its rated surge current?
The 1.5KE110C has a maximum clamping voltage (VC) of 158 V when subjected to its peak pulse current (IPP) of 9.9 A under the standard 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and represents the highest voltage seen across the device during worst-case transient events.
How does the 1.5KE110C compare to the 1.5KE110A variant?
The 1.5KE110A features tighter breakdown voltage tolerance (105–116 V vs. 99–121 V for 1.5KE110C) and slightly higher working stand-off voltage (94.0 V vs. 89.2 V), resulting in improved noise immunity in stable-voltage rails. Both share identical package, surge rating, and thermal specs - the "A" suffix denotes enhanced VBR binning for precision-sensitive designs.
Can the 1.5KE110C be used in bidirectional signal line protection?
No - the 1.5KE110C is strictly unidirectional and unsuitable for AC or bidirectional signal lines. For such applications, use the bidirectional variant 1.5KE110CA, which provides symmetrical clamping in both polarities and is explicitly rated for ESD and EFT protection on data buses like RS-485 or CAN FD physical layers.
1.5KE110C 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:
- -
- Bidirectional Channels:
- 1
- 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
1.5KE110C FAQ
1.How can I place an order for 1.5KE110C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE110C 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 1.5KE110C reliable?
The price and inventory of 1.5KE110C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE110C is usually 5 days.
3.What payment methods are accepted for 1.5KE110C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE110C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE110C?
1.5KE110C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE110C 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 1.5KE110C?
For technical support, including 1.5KE110C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE110C requirements.
6.How does Aetrix verify that 1.5KE110C is sourced from the original manufacturer or authorized distributors?
All 1.5KE110C 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 1.5KE110C meets industry standards.
7.What is the process for return or replacement of 1.5KE110C?
All 1.5KE110C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE110C, 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 1.5KE110C part is unused and in its original packaging.
Return procedure for 1.5KE110C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE110C Tags
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onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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