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Taiwan Semiconductor Corporation 1V5KE75A
- Part No.:
- 1V5KE75A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE75A.pdf
- Description:
- TVS DIODE 64.1VWM 104VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:8,551
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Product details
Overview
1V5KE75A from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with breakdown voltage 71.3–78.8 V at 1 mA, reverse stand-off voltage 64.1 V, clamping voltage 104 V at 14.6 A peak pulse current, and junction temperature range −55 °C to +175 °C. It protects power rails and I/O lines in industrial power supplies and motor drives against ESD and inductive switching transients.
For engineers reviewing the 1V5KE75A datasheet, 1V5KE75A pinout, 1V5KE75A application, or 1V5KE75A equivalent, key selection criteria include its 64.1 V VRWM for 75 V nominal bus protection, 104 V VC clamping under 14.6 A surge, DO-201 mechanical compatibility, unidirectional polarity marking, and RoHS/halogen-free compliance for automotive and industrial deployments.
Technical Context
The 1V5KE75A operates as a silicon avalanche diode that enters controlled breakdown above its reverse stand-off voltage (VRWM = 64.1 V), limiting transient overvoltage to ≤104 V at 14.6 A (10/1000 µs waveform). Its glass-passivated junction ensures stable leakage (<1 µA at VRWM) and low incremental surge resistance for repeatable clamping performance.
Designed for single-pulse surge immunity per IEC 61000-4-5 (Level 4), it delivers 1500 W peak pulse power at 1 ms, with thermal derating to 5 W steady-state at 75 °C lead temperature. Polarity is marked by cathode band; bidirectional variants use "C" suffix (e.g., 1V5KE75CA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 64.1 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 71.3 V / 78.8 V at 1 mA - Confirmed avalanche onset range for design margining |
| VC @ IPPM | 104 V at 14.6 A - Clamped voltage during 10/1000 µs surge, defining protected circuit stress |
| PPPM | 1500 W - Peak pulse power handling capability per JEDEC standard, critical for lightning/surge immunity |
| TJ Range | −55 °C to +175 °C - Full industrial temperature operation without derating loss |
| IR @ VRWM | <1 µA - Negligible leakage current preserves high-impedance signal integrity and standby power |
| Package | DO-201 - Standard axial-leaded through-hole package with 0.090 g mass and UL 94V-0 molding |
Pinout & Package
DO-201 package: axial-leaded, cylindrical body with cathode band marking polarity for unidirectional operation. 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 | Ground reference terminal | Connected to system ground or low-side return path; defines current direction during clamping |
| Cathode | Protected line terminal | Connected to line being protected (e.g., 75 V rail); cathode band identifies this pin physically |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term stability of VBR and IR across temperature and life cycles |
| 1500 W peak pulse power (1 ms) | Meets IEC 61000-4-5 Level 4 surge immunity requirements without external series impedance |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., EFT bursts) |
| RoHS & halogen-free | Complies with IPC/JEDEC J-STD-020 and IEC 61249-2-21 for green manufacturing |
| Fast response time (<1 ps) | Clamps transients before downstream ICs experience overstress, preserving system reliability |
Applications
| Industrial Power Supply Protection | Motor Drive I/O Protection |
|---|---|
Use Scenario: 75 V DC bus in programmable logic controller (PLC) power module exposed to load dump and relay coil flyback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between bus and ground to clamp positive transients only. Use Value: Limits transient voltage to ≤104 V, preventing damage to 100 V-rated MOSFETs and gate drivers on the same rail. | Use Scenario: Digital input channel of servo drive receiving 24 V control signals subject to ESD and cable discharge events. IC Role / Device Role / Timing Role: Standoff protection device on signal line, referenced to local ground. Use Value: Sub-µA leakage avoids false triggering; 104 V clamping prevents latch-up in 3.3 V logic interface ICs downstream. |
| Automotive Body Control Module | LED Streetlight Driver |
Use Scenario: LIN bus line in BCM subjected to battery disconnect transients and ISO 7637-2 Pulse 1/2a. IC Role / Device Role / Timing Role: Unidirectional suppression on supply side of LIN transceiver. Use Value: 64.1 V VRWM allows safe operation during cold-crank (6.5 V) and load-dump (up to 60 V), while clamping >60 V surges. | Use Scenario: Constant-current LED driver output stage exposed to AC line surges and lightning-induced coupling. IC Role / Device Role / Timing Role: Primary overvoltage clamp on output terminals before connector. Use Value: 1500 W rating handles multi-kV surge energy; DO-201 mounting enables direct PCB placement near output terminals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A | DO-214AA package (SMB), 75 V VRWM, 100 V VC @ 15.3 A, 600 W rating | Lower power rating; suited for space-constrained PCBs where 1500 W is not required | Select SMBJ75A when board area is limited and surge threat level is ≤IEC 61000-4-5 Level 2 |
| 1N6292A | Same manufacturer, identical specs and DO-201 package; obsolete JEDEC part number for 1V5KE75A | No functional difference; legacy marking used in older designs | 1N6292A is a direct form-fit-function replacement with identical electrical and mechanical behavior |
Compared with SMBJ75A and 1N6292A, the 1V5KE75A provides higher surge robustness (1500 W vs. 600 W) in the same DO-201 footprint as 1N6292A, making it optimal for high-reliability industrial systems requiring full Level 4 immunity and long-lifecycle sourcing.
Availability
1V5KE75A is available at Aetrix Electronics and suitable for industrial power supplies, motor drive I/O protection, and LED lighting drivers requiring stable component supply and long-term manufacturability.
Supply support for 1V5KE75A 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 1V5KExxA series belongs to TSC's high-power TVS diode product line, engineered specifically for robust transient immunity in harsh environments including factory automation, transportation infrastructure, and outdoor lighting systems.
FAQ
What is the maximum clamping voltage of the 1V5KE75A under a 10/1000 µs surge?
The 1V5KE75A has a maximum clamping voltage (VC) of 104 V when subjected to a 10/1000 µs waveform at its rated peak pulse current of 14.6 A. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuits during surge events. The 1V5KE75A maintains this clamping performance across its full operating temperature range.
Is the 1V5KE75A unidirectional or bidirectional, and how is polarity identified?
The 1V5KE75A is a unidirectional TVS diode, designed to clamp only positive transients relative to ground. Polarity is identified by a cathode band marked on the DO-201 package body - the banded end connects to the protected line, and the unbanded end connects to ground. Bidirectional versions carry the "C" suffix (e.g., 1V5KE75CA).
What is the reverse leakage current of the 1V5KE75A at its rated VRWM?
At its reverse stand-off voltage (VRWM) of 64.1 V and TA = 25 °C, the 1V5KE75A exhibits reverse leakage current (IR) of less than 1 µA. This ultra-low leakage preserves signal integrity in high-impedance circuits and minimizes standby power loss in battery-backed or energy-sensitive applications using the 1V5KE75A.
Can the 1V5KE75A be used in place of the JEDEC-standard 1N6292A?
Yes - the 1V5KE75A is the current production replacement for the legacy JEDEC part 1N6292A. Both share identical electrical specifications (VBR, VRWM, VC, PPPM), DO-201 packaging, and unidirectional functionality. The 1V5KE75A is fully compatible with existing 1N6292A footprints and schematics, with no redesign required.
What is the junction temperature limit and thermal derating behavior of the 1V5KE75A?
The 1V5KE75A has a maximum junction temperature (TJ) of +175 °C and operates from −55 °C to +175 °C. Its steady-state power dissipation derates linearly from 5 W at 75 °C lead temperature to zero at 175 °C, per the published derating curve. This allows reliable operation in high-ambient environments such as enclosed motor drives or outdoor LED fixtures using the 1V5KE75A.
1V5KE75A 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):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 104V
- Current - Peak Pulse (10/1000µs):
- 14.6A
- 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
1V5KE75A FAQ
1.How can I place an order for 1V5KE75A through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE75A 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 1V5KE75A reliable?
The price and inventory of 1V5KE75A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE75A is usually 5 days.
3.What payment methods are accepted for 1V5KE75A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE75A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE75A?
1V5KE75A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE75A 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 1V5KE75A?
For technical support, including 1V5KE75A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE75A requirements.
6.How does Aetrix verify that 1V5KE75A is sourced from the original manufacturer or authorized distributors?
All 1V5KE75A 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 1V5KE75A meets industry standards.
7.What is the process for return or replacement of 1V5KE75A?
All 1V5KE75A units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE75A, 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 1V5KE75A part is unused and in its original packaging.
Return procedure for 1V5KE75A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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