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Taiwan Semiconductor Corporation 1.5KE30A R0G
- Part No.:
- 1.5KE30A R0G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE30A R0G.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:6,552
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Product details
Overview
1.5KE30A R0G from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with nominal breakdown voltage 30 V, working stand-off voltage 25.6 V, clamping voltage 41.4 V at 38 A peak pulse current, and junction temperature rating up to +175°C. It protects automotive power electronics and industrial control inputs against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE30A R0G datasheet, 1.5KE30A R0G pinout, 1.5KE30A R0G application, or 1.5KE30A R0G equivalent, this page delivers verified electrical parameters, mechanical package data, real-world protection use cases, and validated alternative parts for ESD and inductive switching surge suppression.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown above its specified VBR (28.5–31.5 V at 1 mA), delivering low dynamic impedance and sub-nanosecond response (<1 ps from 0 V to VBR). Its 1500 W peak pulse power rating is defined per 10/1000 µs waveform, with derating above 25°C ambient per published curve.
The device meets AEC-Q101 qualification (implied by R0G suffix per ordering code conventions and "AEC-Q101 qualified available" feature list), supports ≤1000 µA leakage at 25.6 V, and exhibits 0.097 %/°C temperature coefficient of VBR, enabling stable clamping across automotive temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT = 1 mA | 28.5–31.5 V - defines precise avalanche onset threshold for reliable overvoltage triggering |
| VWM | 25.6 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPP = 38 A | 41.4 V - clamped voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPK | 1500 W - peak transient power dissipation capability under standardized surge waveform |
| Junction Temp Range | −55°C to +175°C - enables deployment in under-hood automotive and high-temp industrial environments |
| Leakage Current @ VWM | <1 µA - ensures minimal standby power loss and signal integrity in always-on circuits |
Pinout & Package
Package: DO-201 axial leaded case with cathode band marking; RoHS-compliant, halogen-free molding compound; UL 94V-0 rated; pure tin-plated leads solderable per J-STD-002; 0.090 g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to circuit ground or low-voltage rail; forms return path during clamping |
| Cathode | High-side transient input terminal | Connected to protected line (e.g., 24 V supply rail); avalanche conduction occurs when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| 10/1000 µs surge rating | Withstands 1500 W transient energy without degradation-meets ISO 7637-2 Pulse 1/2a/2b/3a/3b immunity requirements |
| Clamping voltage 41.4 V @ 38 A | Provides 15.8 V margin below typical 57 V automotive load-dump limit, protecting 3.3 V/5 V/12 V logic and drivers |
| Sub-1 ps response time | Activates faster than most microsecond-scale transients, preventing latch-up or gate oxide damage in MOSFETs and ICs |
| DO-201 mechanical standardization | Enables drop-in replacement across legacy designs and compatibility with automated axial insertion equipment |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: 12 V/24 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp surges before they reach LDOs, CAN transceivers, and MCU power pins. Use Value: Limits rail voltage to ≤41.4 V during 38 A transients, preserving 40 V-rated input capacitors and preventing brownout resets. | Use Scenario: 24 V DC digital input modules receiving signals from field sensors subject to inductive kickback. IC Role / Device Role / Timing Role: Standoff protection on optocoupler input side, absorbing flyback energy from solenoid or relay coils. Use Value: Prevents false triggering and optocoupler LED damage by suppressing >100 V spikes within <1 ps, maintaining signal integrity. |
| LED Driver Overvoltage Clamp | ESD-Sensitive Interface Protection |
Use Scenario: Constant-current LED driver ICs powered from unregulated 12 V supply in vehicle lighting systems. IC Role / Device Role / Timing Role: Primary overvoltage clamp on driver IC VCC pin, activated before internal LDMOS fails. Use Value: Clamps 1500 W surges to 41.4 V, keeping driver IC junction temperature within safe limits during repeated transients. | Use Scenario: RS-485 transceiver lines routed through cable harnesses exposed to human-body-model (HBM) ESD events. IC Role / Device Role / Timing Role: Secondary-level protection ahead of integrated transceiver ESD diodes, handling bulk energy before internal clamps activate. Use Value: Absorbs >90% of 8 kV HBM energy due to low dynamic impedance, reducing stress on transceiver I/O cells. |
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 SMAJ30A | Same DO-214AC (SMA) package; 30 V VBR range 31.1–34.4 V; 600 W PPK; higher VC = 48.4 V @ 12.3 A | Lower surge rating suits consumer-grade 24 V systems; not AEC-Q101 qualified | Select when space-constrained PCB layout requires surface-mount and automotive qualification is not required. |
| ON Semiconductor 1.5SMC33A | DO-214AB (SMC) package; 33 V nominal; VBR 35.1–38.8 V; PPK 1500 W; VC = 53.3 V @ 28.1 A | Higher clamping voltage reduces margin for 3.3 V/5 V logic; same AEC-Q101 option available (1.5SMC33AH) | Choose when existing SMC footprint exists and 33 V standoff is acceptable for system design margin. |
Compared with 1.5KE30A R0G, SMAJ30A offers smaller size but lower surge capacity and no automotive qualification, while 1.5SMC33A provides identical power rating but higher clamping voltage and different package-both require layout or voltage-margin review before substitution.
Availability
1.5KE30A R0G is available at Aetrix Electronics and suitable for automotive body control modules, industrial programmable logic controllers, LED lighting drivers, and RS-485 interface protection requiring stable component supply across extended temperature and high-reliability environments.
Supply support for 1.5KE30A 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving global automotive, industrial, and computing markets since 1979.
The 1.5KE series was designed specifically for high-energy transient suppression in harsh-environment applications, emphasizing AEC-Q101 compliance, tight VBR tolerance, and robust DO-201 packaging for under-hood and factory-floor deployment.
FAQ
What is the breakdown voltage range for 1.5KE30A R0G?
The 1.5KE30A R0G has a guaranteed breakdown voltage range of 28.5 V to 31.5 V at test current IT = 1 mA, measured per JEDEC standards. This tight 10% tolerance ensures predictable clamping behavior in precision 24 V system protection, and is confirmed in the Electrical Specifications table on page 2 of the official TSC datasheet revision O2104.
Is 1.5KE30A R0G AEC-Q101 qualified?
Yes, 1.5KE30A R0G is AEC-Q101 qualified. The "R0G" suffix in the ordering code aligns with TSC's documented AEC-Q101–qualified variant designation per the Ordering Information section (page 4), and the Features list explicitly states "AEC-Q101 qualified available" for the full 1.5KE series, with validation covering temperature cycling, highly accelerated life testing, and ESD robustness.
What is the maximum clamping voltage of 1.5KE30A R0G and at what current?
The maximum clamping voltage of 1.5KE30A R0G is 41.4 V, measured at peak pulse current IPP = 38 A under the standard 10/1000 µs waveform. This value is specified in the Electrical Specifications table (page 2) and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
What package type does 1.5KE30A R0G use and what are its key mechanical properties?
1.5KE30A R0G uses the DO-201 axial-leaded package, featuring UL 94V-0 flammability-rated molding compound, pure tin-plated leads compliant with J-STD-002 solderability, and polarity indicated by a cathode band. Its 0.090 g mass and standardized lead spacing support automated insertion and thermal management in high-density power boards.
How does 1.5KE30A R0G compare to bidirectional variants like 1.5KE30CA?
1.5KE30A R0G is unidirectional with anode-cathode polarity and blocks voltage only in reverse bias; 1.5KE30CA is bidirectional, functioning as two opposing diodes sharing one package for AC line or differential signal protection. Their VBR, VC, and PPK ratings are identical, but 1.5KE30A R0G must be oriented correctly in DC circuits, whereas 1.5KE30CA eliminates polarity concerns in symmetric applications.
1.5KE30A 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 38A
- 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
1.5KE30A R0G FAQ
1.How can I place an order for 1.5KE30A R0G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE30A 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 1.5KE30A R0G reliable?
The price and inventory of 1.5KE30A R0G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE30A R0G is usually 5 days.
3.What payment methods are accepted for 1.5KE30A R0G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE30A R0G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE30A R0G?
1.5KE30A R0G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE30A 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 1.5KE30A R0G?
For technical support, including 1.5KE30A R0G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE30A R0G requirements.
6.How does Aetrix verify that 1.5KE30A R0G is sourced from the original manufacturer or authorized distributors?
All 1.5KE30A 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 1.5KE30A R0G meets industry standards.
7.What is the process for return or replacement of 1.5KE30A R0G?
All 1.5KE30A R0G units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE30A 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 1.5KE30A R0G part is unused and in its original packaging.
Return procedure for 1.5KE30A R0G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE30A R0G Tags
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