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Taiwan Semiconductor Corporation 1.5KE75C
- Part No.:
- 1.5KE75C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE75C.pdf
- Description:
- 1500W, 75V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:5,509
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Product details
Overview
1.5KE75C from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 75V nominal breakdown voltage (VBR = 67.5–82.5V @ 1mA), 60.7V working stand-off voltage (VWM), and 108V maximum clamping voltage (VC) at 14A peak pulse current. It protects automotive power rails and industrial control inputs against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE75C datasheet, 1.5KE75C pinout, 1.5KE75C application, or 1.5KE75C equivalent, this page delivers verified electrical parameters, DO-201 terminal polarity, AEC-Q101 qualification status, clamping performance under 10/1000μs surge, and real-world ESD/inductive switching protection use cases.
Technical Context
The 1.5KE75C operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its VBR range (67.5–82.5V). Its low dynamic impedance ensures rapid clamping response (<1.0ps from 0V to VBR), limiting transient energy delivered to downstream circuitry.
It meets ISO 7637-2 immunity requirements for automotive electronics and supports steady-state power dissipation of 5W at TL = 75°C on a 16mm × 16mm copper pad. Junction temperature range is −55°C to +175°C, enabling under-hood deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1mA | 67.5–82.5V - defines precise avalanche initiation threshold for overvoltage detection |
| VWM | 60.7V - maximum continuous reverse operating voltage before leakage rises significantly |
| VC @ IPP = 14A | 108V - clamped voltage during 10/1000μs surge, limiting stress on protected ICs |
| PPK | 1500W - peak pulse power handling capability per JEDEC standard waveform |
| ID @ VWM | <1μA - ultra-low leakage preserves signal integrity in high-impedance circuits |
| TJ Range | −55°C to +175°C - enables operation in automotive engine compartments and industrial environments |
Pinout & Package
Package: DO-201 axial lead package with cathode band marking; leads are pure tin plated, solderable per J-STD-002; meets UL 94V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference node | Connected to system ground or low-side return path; carries surge current to earth |
| Cathode | Protected line input | Connected to supply rail or signal line being protected; blocks normal operation, conducts during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| 1500W surge rating (10/1000μs) | Withstands high-energy load dump and inductive switching events without degradation |
| Clamping voltage ≤108V at 14A | Ensures downstream 75V-rated components remain within safe operating area during transients |
| Response time <1.0ps | Engages faster than most microsecond-scale transients, minimizing voltage overshoot |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Suppresses load dump pulses (ISO 7637-2 Pulse 5a) on 24V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC converter input to clamp surges before regulation stage. Use Value: Limits peak voltage to 108V, preventing damage to 75V-input buck controllers and ensuring uninterrupted operation during alternator transients. | Use Scenario: Shields digital input terminals of programmable logic controllers from field-wiring induced surges and EFT bursts. IC Role / Device Role / Timing Role: Front-end protection device on 24V optocoupler input channels exposed to long cable runs in factory automation. Use Value: Blocks >1kV fast transients while maintaining <1μA leakage at 60.7V, preserving input logic thresholds and reducing false triggering. |
| LED Driver Overvoltage Clamp | Motor Drive Gate Driver Protection |
Use Scenario: Prevents catastrophic failure of constant-current LED drivers subjected to 100V+ line transients in outdoor signage applications. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output to absorb inductive kickback and lightning-induced surges. Use Value: Clamps to 108V within <1ps, protecting 75V-rated MOSFETs and current-sense amplifiers without affecting steady-state dimming accuracy. | Use Scenario: Safeguards isolated gate drivers in BLDC inverters from Miller-induced voltage spikes during high-dV/dt switching. IC Role / Device Role / Timing Role: Mounted directly at gate driver output to clamp transient coupling onto high-side gate traces. Use Value: Low clamping voltage (108V) prevents unintended IGBT turn-on while −55°C to +175°C rating supports operation near heatsinks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A | DO-214AA package; 75V VBR min/max tighter (67.5–75.2V); 1000W PPK rating | Lower surge rating suits consumer-grade 24V systems; surface-mount only | Select SMBJ75A for space-constrained PCBs where 1000W surge margin suffices |
| 1N6292 | Same DO-201 package; identical VBR/VWM/VC specs; non-AEC-Q101 rated | Lacks automotive qualification; suitable for industrial/commercial use only | Choose 1N6292 for cost-sensitive non-automotive designs requiring identical electrical behavior |
Compared with SMBJ75A and 1N6292, the 1.5KE75C uniquely combines 1500W surge capacity, AEC-Q101 qualification, and through-hole DO-201 robustness-making it optimal for high-reliability automotive and heavy-industrial deployments where mechanical stability and thermal endurance are critical.
Availability
1.5KE75C is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC input conditioning, LED driver overvoltage clamping, and motor drive gate driver safeguarding requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE75C 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 MOSFETs, with global distribution and AEC-Q101 validation capabilities.
The 1.5KE series was designed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing rugged packaging, wide temperature operation, and compliance with ISO 7637-2 and IEC 61000-4-4 standards.
FAQ
What is the clamping voltage of the 1.5KE75C under a 10/1000μs surge?
The 1.5KE75C has a maximum clamping voltage (VC) of 108V at 14A peak pulse current under the standardized 10/1000μs waveform. This value is measured per JEDEC test conditions and guarantees that protected downstream components experience no more than 108V during worst-case transient events, provided layout minimizes parasitic inductance.
Is the 1.5KE75C AEC-Q101 qualified?
Yes, the 1.5KE75C is AEC-Q101 qualified, as confirmed by Taiwan Semiconductor's official documentation and ordering code suffix "C" indicating automotive-grade reliability testing-including temperature cycling, highly accelerated life testing (HALT), and ESD robustness verification per AEC-Q101-004.
What is the working stand-off voltage (VWM) of the 1.5KE75C?
The working stand-off voltage (VWM) of the 1.5KE75C is 60.7V. This is the maximum DC or continuous reverse voltage the device can withstand without entering avalanche conduction, ensuring reliable blocking during normal operation while allowing sufficient margin below the 75V nominal breakdown rating.
Does the 1.5KE75C have bidirectional capability?
No, the 1.5KE75C is a unidirectional TVS diode, indicated by the "C" suffix and cathode band marking. Bidirectional variants in the same series use "CA" suffix (e.g., 1.5KE75CA) and exhibit symmetrical breakdown in both polarities-whereas the 1.5KE75C only clamps reverse-polarity transients and conducts forward current like a standard diode.
What package type does the 1.5KE75C use?
The 1.5KE75C uses the DO-201 axial lead package, featuring tin-plated leads compliant with J-STD-002, UL 94V-0 molding compound, and a cathode band for polarity identification. Its mechanical outline supports through-hole mounting and provides superior thermal dissipation compared to smaller SMD packages under sustained surge conditions.
1.5KE75C 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):
- 60.7V
- Voltage - Breakdown (Min):
- 67.5V
- Voltage - Clamping (Max) @ Ipp:
- 108V
- Current - Peak Pulse (10/1000µs):
- 14A
- 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
1.5KE75C FAQ
1.How can I place an order for 1.5KE75C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE75C 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 1.5KE75C reliable?
The price and inventory of 1.5KE75C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE75C is usually 5 days.
3.What payment methods are accepted for 1.5KE75C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE75C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE75C?
1.5KE75C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE75C 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 1.5KE75C?
For technical support, including 1.5KE75C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE75C requirements.
6.How does Aetrix verify that 1.5KE75C is sourced from the original manufacturer or authorized distributors?
All 1.5KE75C 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 1.5KE75C meets industry standards.
7.What is the process for return or replacement of 1.5KE75C?
All 1.5KE75C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE75C, 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 1.5KE75C part is unused and in its original packaging.
Return procedure for 1.5KE75C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE75C Tags
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