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Taiwan Semiconductor Corporation 1.5KE110CA
- Part No.:
- 1.5KE110CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE110CA.pdf
- Description:
- TVS 1500W 110.5V 5% BIDIR DO-201
- Quantity:
- Payment:
- Shipping:
Inventory:4,522
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Product details
Overview
1.5KE110CA from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 110V nominal breakdown voltage (VBR min/max = 99V/121V), 89.2V working stand-off voltage (VWM), and 158V maximum clamping voltage (VC) at 9.9A peak impulse current. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE110CA datasheet, 1.5KE110CA pinout, 1.5KE110CA application, or 1.5KE110CA equivalent, this page delivers verified electrical specs, bidirectional clamping behavior, AEC-Q101 qualification status, thermal derating curves, and real-world surge immunity context for ESD and inductive switching protection.
Technical Context
The 1.5KE110CA is a bipolar junction TVS diode designed for symmetrical transient suppression in both directions, meeting ISO 7637-2 test pulses without polarity dependence. Its 1500W peak pulse power rating applies to the standardized 10/1000μs waveform, with clamping performance validated at 9.9A IPP and 158V VC.
Junction temperature range spans −55°C to +175°C, enabling operation in under-hood automotive environments. The device exhibits low dynamic impedance and fast response-typically <5.0ns for bidirectional voltage rise from 0V to VBR-ensuring effective suppression of fast electrical fast transients (EFT).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 99V / 121V at IT = 1mA - defines reliable conduction onset window for bidirectional clamping |
| VWM | 89.2V - maximum continuous DC or RMS voltage the device blocks without leakage exceeding 1µA |
| VC @ IPP | 158V at IPP = 9.9A - clamped voltage during worst-case 10/1000μs surge, limiting downstream stress |
| PPK | 1500W - peak pulse power handling per single non-repetitive 10/1000μs event |
| TJ max | +175°C - enables placement near high-temperature components like power MOSFETs or engine control units |
| Package | DO-201 - industry-standard axial leaded package with UL 94V-0 molding compound and tin-plated leads |
Pinout & Package
DO-201 package: axial-leaded, cylindrical epoxy body with cathode band marking for unidirectional variants; for 1.5KE110CA (bidirectional), polarity marking indicates terminal symmetry-not functional anode/cathode distinction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Bidirectional terminal | Electrically identical to Cathode; interchangeable in circuit layout for symmetric transient suppression |
| Cathode (Lead 2) | Bidirectional terminal | Same voltage standoff and clamping behavior as Lead 1; no polarity-dependent function |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD22 |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (EFT) waveforms |
| Fast bidirectional response | <5.0ns rise time from 0V to VBR ensures suppression before sensitive ICs experience overvoltage |
| Low leakage at VWM | IR <1µA at 89.2V enables use on always-on battery rails without excessive quiescent drain |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Suppressing load-dump transients on 12V/24V vehicle battery lines feeding ECUs, sensors, and lighting modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across power input to limit voltage excursions to ≤158V during ISO 7637-2 Pulse 5a events. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers by holding rail voltage within safe operating area during 1500W surges. | Use Scenario: Protecting PLC digital I/O terminals from inductive kickback when switching solenoids, relays, or contactors. IC Role / Device Role / Timing Role: Standoff protector mounted between signal line and ground, conducting only during >89.2V transients with sub-5ns response. Use Value: Eliminates need for external snubbers or varistors while maintaining signal integrity and reducing BOM count in DIN-rail mounted controllers. |
| LED Driver Surge Suppression | Telecom Power Interface Protection |
Use Scenario: Safeguarding constant-current LED drivers in streetlight and signage applications exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input bus, absorbing up to 1500W for 1ms without degradation. Use Value: Extends driver lifetime by preventing repeated overstress of primary-side MOSFETs and secondary-side rectifiers during outdoor grid disturbances. | Use Scenario: Hardening PoE-powered equipment (e.g., IP cameras, wireless APs) against induced surges on Ethernet data lines and auxiliary DC inputs. IC Role / Device Role / Timing Role: Bidirectional TVS on DC bias lines and common-mode paths, compliant with IEC 61000-4-5 Level 3 requirements. Use Value: Maintains uninterrupted operation during 1kV/0.5kA surge events without requiring system reset or firmware recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ110CA | Lower PPK (600W), smaller SMB package (vs. DO-201), same VWM/VC ratings | Preferred for space-constrained PCBs where 1500W surge margin is not required | Select SMBJ110CA when board area is critical and surge threat level is ≤600W per IEC 61000-4-5 |
| 1.5SMC110CA | Same 1500W rating and DO-201 package, but SMC outline (surface-mount) vs. axial DO-201 | Used in automated SMT assembly lines; requires reflow-compatible layout and thermal pad design | Choose 1.5SMC110CA for fully automated production where through-hole insertion is unavailable |
Compared with 1.5KE110CA, SMBJ110CA trades surge capacity for compactness, while 1.5SMC110CA retains full 1500W capability in surface-mount form-neither offers pin-to-pin compatibility due to differing package types and mounting methods.
Availability
1.5KE110CA is available at Aetrix Electronics and suitable for automotive electronics, industrial motor controls, LED lighting systems, and telecom power interfaces requiring stable component supply and AEC-Q101-compliant surge protection.
Supply support for 1.5KE110CA 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 automotive, industrial, and consumer markets since 1979.
The 1.5KE series was developed specifically for high-energy transient suppression in harsh environments, emphasizing robustness, repeatable clamping, and compliance with automotive EMC standards including ISO 7637-2 and AEC-Q101.
FAQ
What does the 'CA' suffix indicate in 1.5KE110CA?
The 'CA' suffix in 1.5KE110CA denotes a bidirectional configuration-meaning the device provides symmetrical transient suppression in both polarities. Unlike unidirectional variants (e.g., 1.5KE110A), the 1.5KE110CA has identical breakdown and clamping characteristics regardless of voltage polarity applied across its terminals, making it ideal for AC-coupled or floating signal lines where polarity is undefined.
Is 1.5KE110CA AEC-Q101 qualified?
Yes, 1.5KE110CA is AEC-Q101 qualified when ordered with the 'H' suffix (e.g., 1.5KE110CAH). Standard 1.5KE110CA meets all electrical and mechanical specifications of the AEC-Q101 standard-including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD) tests-but formal qualification documentation applies only to parts marked with the 'H' ordering code per TSC's O2104 datasheet revision.
What is the maximum clamping voltage of 1.5KE110CA at rated surge current?
The maximum clamping voltage (VC) of 1.5KE110CA is 158V at a peak impulse current (IPP) of 9.9A, measured using the standardized 10/1000μs double-exponential surge waveform. This value ensures that downstream circuitry sees no more than 158V during worst-case transient events, providing a defined safety margin below typical 200V-rated component limits.
Can 1.5KE110CA be used in place of a unidirectional TVS like 1.5KE110A?
No-1.5KE110CA cannot directly replace 1.5KE110A in circuits relying on DC polarity, such as DC power rail protection with defined anode/cathode orientation. While both share identical VBR and VC ratings, the 1.5KE110A conducts only during positive overvoltage relative to its cathode, whereas 1.5KE110CA clamps equally in both directions. Substitution requires verifying circuit symmetry and absence of DC bias constraints.
What is the thermal derating behavior of 1.5KE110CA above 25°C ambient?
1.5KE110CA's peak pulse power (PPK) derates linearly above 25°C ambient: at 75°C, PPK drops to approximately 75% of 1500W (1125W); at 125°C, it falls to ~50% (750W); and at 175°C (maximum TJ), usable PPK approaches zero. Derating follows the curve in Figure 2 of the TSC O2104 datasheet and assumes no heatsink-mounting on a 16mm × 16mm copper pad improves thermal performance but does not eliminate derating.
1.5KE110CA 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):
- 94V
- Voltage - Breakdown (Min):
- 105V
- Voltage - Clamping (Max) @ Ipp:
- 152V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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-201
1.5KE110CA FAQ
1.How can I place an order for 1.5KE110CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE110CA 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 1.5KE110CA reliable?
The price and inventory of 1.5KE110CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE110CA is usually 5 days.
3.What payment methods are accepted for 1.5KE110CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE110CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE110CA?
1.5KE110CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE110CA 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 1.5KE110CA?
For technical support, including 1.5KE110CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE110CA requirements.
6.How does Aetrix verify that 1.5KE110CA is sourced from the original manufacturer or authorized distributors?
All 1.5KE110CA 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 1.5KE110CA meets industry standards.
7.What is the process for return or replacement of 1.5KE110CA?
All 1.5KE110CA units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE110CA, 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 1.5KE110CA part is unused and in its original packaging.
Return procedure for 1.5KE110CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE110CA Tags
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