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Diodes Incorporated 1.5KE10CA-T
- Part No.:
- 1.5KE10CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE10CA-T.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:3,100
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Product details
Overview
1.5KE10CA-T from Diodes Incorporated is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, designed for high-energy surge protection on DC power rails and signal lines. It features a 8.55V reverse standoff voltage, 9.50V minimum breakdown voltage at 1.0mA test current, 14.5V maximum clamping voltage at 103A peak pulse current, and operates across –55°C to +175°C.
For engineers reviewing the 1.5KE10CA-T datasheet, 1.5KE10CA-T pinout, 1.5KE10CA-T application, or 1.5KE10CA-T equivalent, key selection criteria include clamping voltage margin vs. protected IC VMAX, unidirectional/bidirectional polarity requirement, peak pulse current handling under IEC 61000-4-5 waveform, and thermal derating at elevated ambient temperatures.
Technical Context
This bidirectional TVS diode uses glass-passivated silicon junctions to achieve fast sub-nanosecond response time and stable clamping performance under repetitive 1.0ms 8/20μs surge transients. Its symmetrical avalanche structure enables equal clamping in both polarities without external biasing.
The device is rated for 1500W peak pulse power (tP = 1.0ms), 5.0W steady-state dissipation at 75°C lead temperature, and supports 200A non-repetitive forward surge current. Temperature coefficient of VBR is +0.073%/°C, enabling predictable voltage drift over operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W - Sustains single 1.0ms transient per IEC 61000-4-5 Level 4 (4kV) without degradation |
| Reverse Standoff Voltage (VRWM) | 8.55 V - Maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 9.50 V min @ 1.0 mA - Avalanche conduction initiates reliably above this threshold |
| Clamping Voltage (VC) | 14.5 V max @ 103 A - Limits downstream voltage during surge to protect 12V-rated ICs |
| Peak Pulse Current (IPP) | 103 A - Withstands full 1.0ms surge waveform with <1% parameter shift |
| Operating Temperature | –55°C to +175°C - Validated for under-hood automotive and industrial power supply environments |
| Leakage Current (IR) | 10 μA max @ 8.55 V - Ensures minimal standby power loss in always-on circuits |
Pinout & Package
Package: DO-201 axial-leaded epoxy package (UL 94V-0 rated), 25.4 mm overall length, 8.5–9.53 mm body diameter, 4.8–5.21 mm lead spacing. Weight: 1.12 g. Marking: "1.5KE10CA" only (bidirectional, no cathode band).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge current entry (negative polarity) | Connects to line being protected; conducts when voltage falls below –VBR |
| Cathode | Surge current entry (positive polarity) | Connects to line being protected; conducts when voltage exceeds +VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Enables stable VBR tolerance (±5%) and low leakage (<10 µA) after 1000+ surge cycles |
| Bidirectional configuration | Protects AC-coupled or floating signals without polarity-sensitive placement (e.g., RS-485, CAN bus) |
| RoHS-compliant, halogen-free finish | Meets IPC-J-STD-020 moisture sensitivity Level 1 and automotive PPAP requirements |
| Fast response time | Sub-1 ns turn-on ensures clamping occurs before sensitive ICs experience overvoltage stress |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: 12V battery rail in engine control units exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role: Primary overvoltage clamp placed between fuse and DC-DC converter input. Use Value: Clamps transients to ≤14.5V, preventing damage to 16V-rated buck controllers and microcontrollers. |
Use Scenario: 24V digital input module receiving signals from field sensors in factory automation. IC Role / Device Role: Front-end surge limiter on isolated optocoupler input side. Use Value: Absorbs 1kV/500A surges per IEC 61000-4-5 while maintaining <10µA leakage at 24V nominal. |
| Telecom Line Interface | Consumer Appliance Motor Control |
|
Use Scenario: RS-485 data lines in outdoor base stations subjected to lightning-induced common-mode surges. IC Role / Device Role: Bidirectional shunt protector across differential pair, referenced to local ground. Use Value: Symmetrical clamping ensures equal protection for both A and B lines without polarity misalignment risk. |
Use Scenario: H-bridge gate driver supply rail in washing machine motor inverters experiencing back-EMF spikes. IC Role / Device Role: Rail clamp parallel to bulk capacitor on 15V auxiliary supply. Use Value: 1500W rating handles repetitive 100A spikes from brushless motor commutation without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA | Lower 600W peak power; SMC (DO-214AB) surface-mount package; 10.0V VRWM; 17.0V VC @ 35.3A | Designed for PCB space-constrained designs; lower clamping voltage margin requires tighter system-level coordination | Select when board area is limited and surge energy is ≤600W; verify layout thermal relief for 75°C ambient |
| 1N6267A | Same DO-201 package; 1500W rating; 10.0V VRWM; but unidirectional only; 17.0V VC @ 88.2A | Requires explicit polarity assignment; unsuitable for AC or floating nodes | Choose only for fixed-polarity DC rails where cost is prioritized over design flexibility |
Compared with 1.5KE10CA-T, SMBJ10CA trades surge capacity for compactness and solderability, while 1N6267A sacrifices bidirectionality to reduce unit cost-neither matches its combination of axial-leaded robustness, symmetrical clamping, and 103A pulse current capability.
Availability
1.5KE10CA-T is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC I/O protection, telecom line interface, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE10CA-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 belongs to Diodes' high-power TVS portfolio, engineered specifically for industrial and automotive systems demanding rugged, standardized surge protection with proven AEC-Q200 alignment and IATF 16949 production compliance.
FAQ
Is 1.5KE10CA-T suitable for IEC 61000-4-5 Level 4 (4kV) testing?
Yes. With 1500W peak pulse power and 103A IPP rating at 1.0ms, it meets IEC 61000-4-5 Level 4 requirements when used with appropriate series impedance (e.g., 2Ω source). Its 14.5V clamping voltage ensures protected circuitry remains within safe operating limits during full-surge events.
What is the difference between '1.5KE10A' and '1.5KE10CA'?
'1.5KE10A' is unidirectional (cathode-banded), conducting only for positive overvoltage; '1.5KE10CA' is bidirectional (no band), providing symmetrical clamping for both polarities. The 'C' suffix explicitly denotes bidirectional functionality per Diodes' datasheet Note 7.
Can 1.5KE10CA-T replace 1.5KE10A in an existing design?
Only if the circuit is polarity-agnostic or AC-coupled. Substituting a bidirectional part for unidirectional risks unintended conduction during normal negative excursions. Verify that the protected node has no DC bias inversion or asymmetric voltage constraints before replacement.
Does 1.5KE10CA-T require heatsinking in continuous operation?
No. Its 5.0W steady-state rating applies at 75°C lead temperature with 9.5mm lead length; standard PCB mounting with 10mm lead length provides sufficient thermal path. Heatsinking is unnecessary unless ambient exceeds 75°C or duty cycle exceeds 1% for repetitive surges.
1.5KE10CA-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 103A
- 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
1.5KE10CA-T FAQ
1.How can I place an order for 1.5KE10CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE10CA-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 1.5KE10CA-T reliable?
The price and inventory of 1.5KE10CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE10CA-T is usually 5 days.
3.What payment methods are accepted for 1.5KE10CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE10CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE10CA-T?
1.5KE10CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE10CA-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 1.5KE10CA-T?
For technical support, including 1.5KE10CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE10CA-T requirements.
6.How does Aetrix verify that 1.5KE10CA-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE10CA-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 1.5KE10CA-T meets industry standards.
7.What is the process for return or replacement of 1.5KE10CA-T?
All 1.5KE10CA-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE10CA-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 1.5KE10CA-T part is unused and in its original packaging.
Return procedure for 1.5KE10CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE10CA-T Tags
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ESD9B5.0ST5G
onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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