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Taiwan Semiconductor Corporation 1.5KE7.5A R0G
- Part No.:
- 1.5KE7.5A R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE7.5A R0G.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:4,731
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Product details
Overview
1.5KE7.5A R0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 7.5V, minimum VBR 7.13V at 10mA, maximum clamping voltage 139V at 500A peak pulse current, and working stand-off voltage 6.40V - designed for automotive-grade ESD and load-dump protection in power supply rails and I/O interfaces.
For engineers reviewing the 1.5KE7.5A R0G datasheet, 1.5KE7.5A R0G pinout, 1.5KE7.5A R0G application, or 1.5KE7.5A R0G equivalent, key selection criteria include unidirectional polarity, DO-201 mechanical compatibility, 1500W surge rating per 10/1000μs waveform, low dynamic impedance, and AEC-Q101 qualification status (R0G suffix indicates green, halogen-free, RoHS-compliant packaging).
Technical Context
The 1.5KE7.5A R0G operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its specified VBR range (7.13–7.88V), then clamping transients to ≤139V at 500A. Its fast response time (<1.0ps from 0V to VBR) ensures protection of downstream ICs against ESD and electrical fast transients.
It meets ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity requirements and supports steady-state power dissipation up to 5W at TL = 75°C on 16mm × 16mm copper pad. Junction temperature range is –55°C to +175°C, enabling use in under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 10mA | 7.13–7.88V: Ensures reliable turn-on before system damage threshold in 5V–12V rail protection |
| VWM | 6.40V: Maximum continuous reverse voltage without leakage exceeding 1µA - safe for 5V logic interface protection |
| VC @ IPP = 500A | 139V: Clamped voltage during worst-case 10/1000μs surge - defines protected circuit's voltage stress limit |
| PPK | 1500W: Peak pulse power handling capability - enables robust protection against ISO 7637-2 load dump events |
| IFSM | 200A: Non-repetitive forward surge current rating - supports inrush current tolerance in DC power inputs |
| Junction Temp Range | –55°C to +175°C: Enables deployment in engine control units and industrial motor drives without derating |
| Leakage @ VWM | <1µA: Minimal standby power loss and signal integrity impact in always-on circuits |
Pinout & Package
Package: DO-201 axial leaded package with cathode band marking; body length 7.1–7.6mm, diameter 5.1–5.6mm; pure tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode (banded end) | Avalanche clamping terminal | Connected to protected line (e.g., 5V rail); conducts during overvoltage to shunt energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - supports PPAP and functional safety design |
| 1500W surge rating (10/1000μs) | Withstands high-energy transients from inductive load switching and battery disconnection events |
| Clamping voltage ≤139V at 500A | Provides predictable overvoltage ceiling - simplifies downstream component voltage rating selection |
| Response time <1.0ps | Engages before ESD or EFT pulses propagate into sensitive analog/digital circuitry |
| RoHS & halogen-free (IEC 61249-2-21) | Complies with global environmental regulations and enables use in consumer and automotive supply chains |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5V microcontroller power input in engine control module exposed to ISO 7637-2 Pulse 5a (load dump) and Pulse 1 (inductive spike). IC Role / Device Role / Timing Role: Unidirectional TVS placed between VCC and GND, acting as last-line voltage clamp during transient events. Use Value: Limits rail voltage to ≤139V during 500A surges, preventing latch-up or permanent damage to MCU and associated LDOs. | Use Scenario: Safeguarding RS-485 transceiver I/O lines in factory automation PLCs subjected to EFT bursts per IEC 61000-4-4. IC Role / Device Role / Timing Role: TVS diode connected across differential pair (A–B) and referenced to local ground, suppressing common-mode transients. Use Value: Sub-1.0ps response ensures clamping occurs before transceiver input stage reaches breakdown, preserving data integrity. |
| LED Driver Input Protection | USB Port ESD Suppression |
Use Scenario: Securing constant-current LED driver input against 12V battery line transients in automotive lighting modules. IC Role / Device Role / Timing Role: Unidirectional 1.5KE7.5A R0G placed upstream of input capacitor and controller IC. Use Value: Withstands repeated 1500W surges while maintaining <1µA leakage at 6.4V - avoids efficiency loss in always-on lighting systems. | Use Scenario: Adding secondary-level ESD protection on VBUS line of USB 2.0 host port in infotainment head unit. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing ±15kV contact discharge per IEC 61000-4-2 before integrated port protection triggers. Use Value: 6.40V VWM allows full 5V operation while clamping to 139V - prevents false overvoltage shutdown of USB power delivery ICs. |
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 SMAJ7.5A | Same DO-214AC (SMA) package; 7.5V nominal, VC = 12.9V @ 44.2A - lower clamping but 400W rating only | Not suitable for 1500W ISO 7637-2 Pulse 5a; limited to board-level ESD, not system-level load dump | Select only for space-constrained PCBs where 400W surge capacity suffices and lower clamping voltage is prioritized |
| ON Semiconductor 1.5SMC7.5A | DO-214AB (SMC) package; identical 7.5V rating, VC = 12.9V @ 116A, PPK = 1500W - same surge rating but different footprint | Requires PCB layout change due to larger SMC body (7.1 × 6.2mm vs DO-201 7.6 × 5.6mm); higher thermal mass | Choose when thermal performance under sustained surge duty cycle is critical and SMC mounting is acceptable |
Compared with SMAJ7.5A and 1.5SMC7.5A, the 1.5KE7.5A R0G uniquely combines DO-201 axial form factor, AEC-Q101 qualification, and 1500W capability - making it optimal for legacy automotive harness-connected modules where leaded through-hole mounting and high-energy immunity are mandatory.
Availability
1.5KE7.5A R0G is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, LED driver input safeguarding, and USB VBUS ESD suppression requiring stable component supply across extended production lifecycles.
Supply support for 1.5KE7.5A 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, rectifiers, and MOSFETs for automotive, industrial, and consumer markets.
The 1.5KE series was developed specifically for high-reliability transient suppression in harsh automotive environments, emphasizing AEC-Q101 compliance, wide temperature operation, and standardized DO-201 mechanical compatibility.
FAQ
What is the polarity configuration of the 1.5KE7.5A R0G?
The 1.5KE7.5A R0G is a unidirectional TVS diode, with cathode indicated by a band on the DO-201 package. It conducts only in reverse bias above VBR, making it suitable for DC rail protection where polarity is fixed - unlike bidirectional variants (e.g., 1.5KE7.5CA) used for AC or differential signal lines. This polarity must be observed during PCB placement to ensure correct clamping behavior.
Does the 1.5KE7.5A R0G meet AEC-Q101 requirements?
Yes, the 1.5KE7.5A R0G is AEC-Q101 qualified, as confirmed by Taiwan Semiconductor's documentation for the 1.5KE series with "H" or "R0G" suffixes. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD - validating its suitability for automotive electronic control units, body electronics, and powertrain subsystems.
What is the maximum clamping voltage of the 1.5KE7.5A R0G under surge conditions?
The 1.5KE7.5A R0G has a maximum clamping voltage (VC) of 139V at 500A peak impulse current (10/1000μs waveform). This value is guaranteed across temperature and process variation, and defines the upper voltage limit imposed on protected circuitry during worst-case transients - critical for ensuring downstream components remain within absolute maximum ratings.
Can the 1.5KE7.5A R0G be used in bidirectional signal protection?
No, the 1.5KE7.5A R0G is strictly unidirectional and unsuitable for bidirectional signal lines such as RS-485 or CAN. For those applications, Taiwan Semiconductor offers the 1.5KE7.5CA variant, which provides symmetrical clamping in both polarities. Using 1.5KE7.5A R0G on AC or differential signals risks forward conduction during normal operation and failure to clamp negative transients.
What is the junction-to-ambient thermal resistance (RθJA) of the 1.5KE7.5A R0G?
Taiwan Semiconductor does not publish a specific RθJA value for the 1.5KE7.5A R0G in the provided documentation. However, its steady-state power dissipation is rated at 5W when mounted on a 16mm × 16mm copper pad at TL = 75°C - implying an effective RθJA of approximately 35°C/W under that condition. For precise thermal modeling, users should refer to TSC's thermal characterization curves or perform board-specific measurements.
1.5KE7.5A 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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 139A
- 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
1.5KE7.5A R0G FAQ
1.How can I place an order for 1.5KE7.5A R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE7.5A 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 1.5KE7.5A R0G reliable?
The price and inventory of 1.5KE7.5A R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE7.5A R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE7.5A R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE7.5A R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE7.5A R0G?
1.5KE7.5A R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE7.5A 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 1.5KE7.5A R0G?
For technical support, including 1.5KE7.5A R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE7.5A R0G requirements.
6.How does Aetrix verify that 1.5KE7.5A R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE7.5A 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 1.5KE7.5A R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE7.5A R0G?
All 1.5KE7.5A R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE7.5A 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 1.5KE7.5A R0G part is unused and in its original packaging.
Return procedure for 1.5KE7.5A R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE7.5A R0G Tags
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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