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Diodes Incorporated 1.5KE100A-T
- Part No.:
- 1.5KE100A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE100A-T.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:9,505
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Product details
Overview
1.5KE100A-T from Diodes Incorporated is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, designed for primary overvoltage protection of DC power rails and signal lines. It features 85.5V reverse standoff voltage, 95.0V minimum breakdown voltage at 1mA test current, 137V maximum clamping voltage at 11A peak pulse current, and operates across -55°C to +175°C.
For engineers reviewing the 1.5KE100A-T datasheet, 1.5KE100A-T pinout, 1.5KE100A-T application, or 1.5KE100A-T equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, peak pulse current capability under IEC 61000-4-5 surge waveforms, thermal derating above +25°C, and compatibility with axial-leaded PCB layouts requiring RoHS-compliant, halogen-free construction.
Technical Context
This unidirectional TVS diode uses glass-passivated silicon junction technology to achieve sub-nanosecond response time and stable clamping performance under repetitive 1.0ms exponential pulses. Its DO-201 axial package supports lead-forming for through-hole mounting and provides 5.0W steady-state power dissipation at 75°C lead temperature.
The device exhibits 0.106%/°C voltage temperature coefficient and maintains ≤5.0μA reverse leakage at 85.5V standoff, enabling reliable operation in automotive and industrial environments where ambient temperatures exceed 125°C and long-term reliability under surge stress is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W at 1.0ms non-repetitive pulse - sustains IEC 61000-4-5 Level 4 (4kV/2Ω) surges without failure |
| Reverse Standoff Voltage | 85.5V - maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage | 95.0V min @ 1mA - ensures reliable conduction onset during overvoltage events |
| Clamping Voltage | 137V max @ 11A - limits downstream voltage to safe levels for 24V/48V system ICs |
| Operating Temperature | -55°C to +175°C - qualified for under-hood automotive and high-temp industrial use |
| Leakage Current | ≤5.0μA @ 85.5V - minimizes standby power loss in battery-powered systems |
Pinout & Package
DO-201 axial-leaded package with cathode band marking; leads are tin-finished, solderable per MIL-STD-202 Method 208, and rated for 200A peak forward surge current.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during clamping | Connected to protected line; conducts when cathode-to-anode voltage exceeds VBR |
| Cathode | Current exit point during clamping | Marked by band; tied to ground or lower-potential rail to shunt surge energy |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Enables stable VBR and low leakage over 10+ year field life in humid environments |
| RoHS-compliant, halogen-free | Meets EU Directive 2015/863/EU with Br+Cl <1500ppm and Sb <1000ppm - supports green manufacturing |
| UL 94V-0 epoxy molding | Self-extinguishing package material prevents flame propagation in fault conditions |
| 1.12g mass | Enables mechanical stability in vibration-prone applications such as automotive engine control units |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
Use Scenario: 24V battery rail protection in engine control modules against load dump transients up to 120V. IC Role / Device Role / Timing Role: Primary clamping element placed between battery input and DC-DC converter input stage. Use Value: Limits voltage to ≤137V during 120V/100ms load dump, preventing damage to 40V-rated MOSFETs and regulators. |
Use Scenario: Protection of 24V digital input channels on programmable logic controllers exposed to inductive switching noise. IC Role / Device Role / Timing Role: Fast-response shunt device placed across optocoupler input terminals. Use Value: Clamps 1kV/500A surge (IEC 61000-4-5) within 1ns, preserving signal integrity and optocoupler lifetime. |
| Telecom DC Power Feeds | Renewable Energy Inverter Control |
Use Scenario: Overvoltage suppression on -48V telecom rectifier outputs subject to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS connected cathode-to-ground on DC output bus. Use Value: Withstands repeated 1500W pulses while maintaining <5μA leakage at -48V, minimizing standby loss. |
Use Scenario: Protection of gate driver supply rails in solar inverter half-bridges during IGBT switching transients. IC Role / Device Role / Timing Role: Secondary clamping device downstream of bulk capacitors, upstream of isolated gate drivers. Use Value: Limits coupled spikes to <137V, ensuring gate oxide safety margin for 200V-rated SiC drivers. |
Availability
1.5KE100A-T is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC I/O protection, telecom DC power feeds, and renewable energy inverter control requiring stable component supply and full traceability.
Supply support for 1.5KE100A-T 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
The 1.5KE series targets high-energy transient suppression in harsh-environment applications, emphasizing robustness, wide temperature operation, and compliance with automotive and industrial reliability standards including AEC-Q101.
FAQ
What is the difference between 1.5KE100A-T and 1.5KE100CA-T?
The 1.5KE100A-T is unidirectional, with cathode band marking and clamping only during positive overvoltage events relative to ground. The 1.5KE100CA-T is bidirectional, lacking polarity marking and clamping symmetrically for both polarities - making it suitable for AC signal lines or differential buses where voltage reversal occurs.
Can 1.5KE100A-T be used in place of SMAJ100A?
No - SMAJ100A is an SMA surface-mount TVS with 100W peak power, while 1.5KE100A-T delivers 1500W in a DO-201 axial package. Substitution requires verifying board layout compatibility, thermal path adequacy, and whether the higher clamping voltage (137V vs. ~150V for SMAJ100A) meets system margin requirements.
Is 1.5KE100A-T still in active production?
Per Diodes Incorporated's DS21503 Rev. 12 (May 2023), the 1.5KE6V8(C)A–1.5KE400(C)A family is marked "OBSOLETE – PART DISCONTINUED". However, Aetrix Electronics maintains legacy inventory with full traceability and offers engineering support for migration paths to active alternatives like P6SMB100A or SMF100A.
What is the maximum allowable lead temperature during soldering?
The DO-201 package is rated for soldering at 260°C for 10 seconds maximum, per MIL-STD-202 Method 208. Exceeding this risks internal bond wire damage and degradation of glass passivation integrity, leading to increased leakage or premature failure under surge stress.
1.5KE100A-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 11A
- 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
1.5KE100A-T FAQ
1.How can I place an order for 1.5KE100A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE100A-T 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 1.5KE100A-T reliable?
The price and inventory of 1.5KE100A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE100A-T is usually 5 days.
3.What payment methods are accepted for 1.5KE100A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE100A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE100A-T?
1.5KE100A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE100A-T 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 1.5KE100A-T?
For technical support, including 1.5KE100A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE100A-T requirements.
6.How does Aetrix verify that 1.5KE100A-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE100A-T 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 1.5KE100A-T meets industry standards.
7.What is the process for return or replacement of 1.5KE100A-T?
All 1.5KE100A-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE100A-T, 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 1.5KE100A-T part is unused and in its original packaging.
Return procedure for 1.5KE100A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE100A-T Tags
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