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Taiwan Semiconductor Corporation 1.5KE75A R0G
- Part No.:
- 1.5KE75A R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE75A R0G.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:7,756
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Product details
Overview
1.5KE75A R0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 75V, working stand-off voltage 64.1V, clamping voltage 103V at 15A peak pulse current, and fast response time <1.0ps. It protects automotive power rails and industrial I/O interfaces against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE75A R0G datasheet, 1.5KE75A R0G pinout, 1.5KE75A R0G application, or 1.5KE75A R0G equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, leakage current at operating bias, surge current rating under 10/1000μs waveform, and AEC-Q101 qualification status for automotive use.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR (71.3–78.8V), it avalanches to limit transient energy by diverting surge current to ground. Its low dynamic impedance ensures stable clamping during fast transients.
Designed for single-polarity DC lines, it supports steady-state power dissipation of 5W at 75°C lead temperature and withstands 200A non-repetitive forward surge (8.3ms half-sine). Junction temperature range is −55°C to +175°C, enabling under-hood automotive deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1mA | 71.3–78.8V - Ensures reliable turn-on before protected circuit reaches destructive overvoltage |
| VWM | 64.1V - Maximum continuous reverse operating voltage; sets safe margin below VBR min |
| VC @ IPP = 15A | 103V - Clamped voltage during 10/1000μs surge; defines worst-case stress on downstream IC |
| PPK | 1500W - Peak pulse power handling per JEDEC standard; validates robustness against ISO 7637-2 pulses |
| IPP max | 15A - Maximum peak impulse current at rated clamping voltage; determines minimum PCB trace width |
| IR @ VWM | <1μA - Ultra-low leakage preserves battery life in always-on automotive modules |
| TJ max | +175°C - Enables placement near heat-generating components without derating |
Pinout & Package
DO-201 axial package with cathode band marking; two-terminal device requiring no external bias. Cathode terminal connects to protected line; anode connects to ground reference.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference node | Low-impedance return path for surge current; must connect to solid ground plane |
| Cathode | Protected line input | Connects to DC supply rail or signal line needing transient suppression; polarity-sensitive |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements |
| 1500W 10/1000μs surge rating | Withstands repetitive load dump and inductive switching events without degradation |
| Clamping voltage ≤103V at 15A | Maintains safe overvoltage margin for 72V-rated microcontrollers and CAN transceivers |
| Response time <1.0ps | Activates before ESD or fast transients propagate into sensitive analog front-ends |
| RoHS & halogen-free | Complies with IPC-J-STD-609 and IEC 61249-2-21 for green manufacturing |
Applications
| Automotive Power Rail Protection | Industrial I/O Interface Protection |
|---|---|
Use Scenario: 12V/24V battery-fed ECUs exposed to ISO 7637-2 Pulse 1 (inductive load dump) and Pulse 2b (alternator load dump). IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between power rail and chassis ground to clamp transients before reaching PMIC or MCU. Use Value: Limits rail voltage to ≤103V during 15A surges, preventing latch-up or gate oxide damage in 3.3V/5V logic supplies. |
Use Scenario: RS-485/RS-232 ports on PLCs and motor drives subjected to EFT bursts per IEC 61000-4-4. IC Role / Device Role / Timing Role: Line-side TVS on differential bus lines to absorb common-mode transients without disrupting data integrity. Use Value: Sub-1ps response ensures clamping occurs before EFT edge propagates into transceiver input stage, preserving bit error rate. |
| LED Driver Output Protection | DC-DC Converter Input Protection |
Use Scenario: Constant-current LED drivers in automotive lighting systems experiencing load-switching spikes. IC Role / Device Role / Timing Role: TVS across output terminals to suppress inductive kickback from long harnesses or relay coils. Use Value: 1500W rating handles multi-cycle switching surges; 64.1V VWM avoids false triggering during normal 60V LED string operation. |
Use Scenario: Buck converter inputs in industrial sensors exposed to 48V supply transients per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary-side TVS on VIN pin to prevent overvoltage shutdown or internal FET avalanche failure. Use Value: 103V clamping voltage provides ≥20% margin above 80V max input spec of typical 48V-input converters. |
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 SMAJ75A | Same DO-214AC (SMA) package; 75V VBR min 71.3V, VC = 121V @ 12.5A; 400W PPK | Lower surge rating limits use to sub-automotive industrial I/O; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification and higher clamping voltage is acceptable |
| ON Semiconductor 1.5SMC75A | DO-214AB (SMC) package; 75V VBR min 71.3V, VC = 109V @ 13.7A; 1500W PPK; AEC-Q101 option available | Larger footprint (7.11 × 6.22 mm vs. DO-201's 5.2 × 2.7 mm); higher thermal mass improves power cycling endurance | Select when board space allows larger SMC package and enhanced thermal reliability is prioritized over axial form factor |
Compared with 1.5KE75A R0G, SMAJ75A offers lower cost but sacrifices automotive qualification and clamping performance; 1.5SMC75A matches surge capability and adds thermal robustness at the expense of PCB area-making 1.5KE75A R0G optimal for space-constrained, AEC-Q101–mandated automotive modules.
Availability
1.5KE75A R0G is available at Aetrix Electronics and suitable for automotive ECU power protection, industrial I/O interface hardening, and LED driver output surge suppression requiring stable component supply across extended production lifecycles.
Supply support for 1.5KE75A R0G 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 automotive-grade process control.
The 1.5KE series was designed specifically for high-energy transient suppression in automotive and industrial environments where reliability under ISO 7637-2 and IEC 61000-4-5 stress is mandatory.
FAQ
What is the maximum clamping voltage of the 1.5KE75A R0G under standard test conditions?
The 1.5KE75A R0G has a maximum clamping voltage (VC) of 103V when subjected to a 10/1000μs surge current pulse of 15A. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuits during transient events-critical for ensuring compatibility with 72V-rated automotive ICs and power management units.
Is the 1.5KE75A R0G AEC-Q101 qualified?
Yes, the 1.5KE75A R0G is AEC-Q101 qualified, as confirmed by Taiwan Semiconductor's documentation for the 1.5KE series with "H" or "A" suffix variants. This qualification covers stress tests including temperature cycling, humidity bias HAST, and mechanical shock-validating its suitability for automotive powertrain and body electronics applications.
What is the working stand-off voltage (VWM) for the 1.5KE75A R0G?
The working stand-off voltage (VWM) of the 1.5KE75A R0G is 64.1V. This parameter represents the maximum continuous reverse voltage the device can withstand without entering avalanche conduction, providing a 14.5% margin below the minimum breakdown voltage (71.3V) to ensure stable operation under normal system conditions.
How does the 1.5KE75A R0G compare to bidirectional TVS diodes in the same series?
The 1.5KE75A R0G is unidirectional and intended for DC line protection with defined polarity; bidirectional variants like 1.5KE75CA use symmetrical breakdown for AC or differential signal lines. The 1.5KE75A R0G offers lower leakage (<1μA) and tighter VBR tolerance than its bidirectional counterparts, making it preferred for battery-powered automotive modules where quiescent current matters.
What package type does the 1.5KE75A R0G use, and what are its key mechanical features?
The 1.5KE75A R0G uses the DO-201 axial package with pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance. Its molded compound meets UL 94V-0 flammability rating, and the cathode band provides clear polarity identification-enabling reliable manual and automated assembly in high-volume automotive production.
1.5KE75A R0G 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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 15A
- 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
1.5KE75A R0G FAQ
1.How can I place an order for 1.5KE75A R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE75A R0G 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 1.5KE75A R0G reliable?
The price and inventory of 1.5KE75A R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE75A R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE75A R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE75A R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE75A R0G?
1.5KE75A R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE75A R0G 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 1.5KE75A R0G?
For technical support, including 1.5KE75A R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE75A R0G requirements.
6.How does Aetrix verify that 1.5KE75A R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE75A R0G 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 1.5KE75A R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE75A R0G?
All 1.5KE75A R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE75A R0G, 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 1.5KE75A R0G part is unused and in its original packaging.
Return procedure for 1.5KE75A R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE75A R0G Tags
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