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Diodes Incorporated 1.5KE10A-T
- Part No.:
- 1.5KE10A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE10A-T.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:4,607
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Product details
Overview
1.5KE10A-T from Diodes Incorporated is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 8.55V reverse standoff voltage, 9.50V minimum breakdown voltage at 1.0mA test current, and 14.5V maximum clamping voltage at 103A peak pulse current. It protects DC power rails and signal lines in industrial power supplies and automotive ECUs against ESD and lightning-induced surges.
For engineers reviewing the 1.5KE10A-T datasheet, 1.5KE10A-T pinout, 1.5KE10A-T application, or 1.5KE10A-T equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, peak pulse current handling under IEC 61000-4-5 surge waveforms, thermal derating above +25°C ambient, and axial lead solderability per MIL-STD-202 Method 208.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: it remains high-impedance below 8.55V VRWM, avalanches sharply at 9.50–10.50V VBR, and clamps transients to ≤14.5V at 103A IPP. Its glass-passivated junction ensures stable leakage (<10μA at VR) and fast response time (<1.0ps).
The DO-201 package supports 5.0W steady-state dissipation at TL=75°C with 9.5mm lead length, and its axial leads enable through-hole mounting on high-reliability PCBs requiring mechanical robustness and traceable solder joints.
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) surge without failure |
| Reverse Standoff Voltage | 8.55V - maximum continuous DC voltage before significant leakage; sets upper limit for protected circuit operating voltage |
| Breakdown Voltage | 9.50V min @ 1.0mA - guaranteed avalanche initiation threshold; ensures reliable triggering before downstream IC damage |
| Clamping Voltage | 14.5V max @ 103A - limits transient voltage seen by load; provides ≥2.5V margin below typical 16V automotive microcontroller ABS max |
| Leakage Current | ≤10μA @ 8.55V - negligible standby power loss; avoids false triggering in low-power sensor nodes |
| Operating Temperature | −55°C to +175°C - qualified for under-hood automotive and industrial motor drive environments |
Pinout & Package
DO-201 axial-leaded package with cathode band marking; body length 25.4mm, diameter 4.8–5.21mm, lead spacing 8.5–9.53mm. Tin-plated leads are solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference node | Connected to system ground or low-side return path; completes shunt conduction loop during overvoltage events |
| Cathode | Protected line input | Connected to line being protected (e.g., 12V rail); avalanche conduction occurs from cathode to anode when VAK exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Ensures stable VBR tolerance (±5%) and low leakage drift over temperature and lifetime |
| 1500W peak pulse rating | Supports single-event surge immunity up to IEC 61000-4-5 4kV (2Ω source impedance) |
| RoHS-compliant & halogen-free | Meets EU Directive 2015/863/EU; <900ppm Br, <900ppm Cl, <1000ppm Sb - suitable for green manufacturing |
| Moisture sensitivity Level 1 | No bake requirement prior to reflow; compatible with standard SMT assembly processes despite axial form factor |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: 12V battery-supplied BCM microcontroller I/O lines exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt clamp on LIN bus and switch inputs. Use Value: Clamps transients to 14.5V, staying below MCU absolute maximum rating while surviving 103A pulses per ISO 7637-2 Pulse 5a. |
Use Scenario: 24V DC digital input channel in programmable logic controller receiving signals from field sensors. IC Role / Device Role / Timing Role: Primary overvoltage protection at terminal block entry point. Use Value: Limits induced surges from nearby motor switching to safe levels within 1ns, preventing false triggering of optocoupler input stages. |
| AC-DC Adapter Secondary Side | Telecom Power Interface |
Use Scenario: Output rectifier rail in 12V/5A offline SMPS powering IoT gateways. IC Role / Device Role / Timing Role: Secondary-side transient suppressor parallel to bulk capacitor. Use Value: Absorbs flyback energy from transformer leakage inductance during MOSFET turn-off, reducing output voltage overshoot by >30%. |
Use Scenario: -48V DC power feed interface in telecom base station remote radio units. IC Role / Device Role / Timing Role: Polarity-sensitive surge guard on power entry before DC-DC converters. Use Value: Withstands repeated 10/700μs surges up to 1.5kV (IEC 61000-4-5) without degradation due to glass-passivated junction stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10A | Same 10V nominal breakdown but SMB package (surface-mount); 600W peak power rating | Requires PCB real estate optimization; unsuitable for high-current axial mounting or manual repair | Select when board space is constrained and surge requirements are ≤600W (e.g., consumer USB-C PD adapters) |
| 1.5KE10CA | Bidirectional variant; identical VBR and VC specs but symmetrical clamping for AC-coupled lines | Used on differential buses (e.g., RS-485) or AC signal paths where polarity reversal occurs | Choose only if bidirectional protection is required; unidirectional 1.5KE10A-T offers lower leakage and tighter VBR tolerance |
Compared with SMBJ10A, 1.5KE10A-T delivers 2.5× higher surge energy handling in axial form; versus 1.5KE10CA, it provides superior DC rail protection with lower IR and defined polarity-critical for power supply input staging.
Availability
1.5KE10A-T is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC digital inputs, and AC-DC adapter secondary-side protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 1.5KE10A-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 semiconductor company specializing in discrete, analog, and mixed-signal devices, with design centers in Asia, Europe, and the U.S., and manufacturing in IATF 16949-certified facilities.
The 1.5KE series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure, emphasizing rugged packaging, AEC-Q200-aligned reliability, and precise clamping performance under repetitive surge stress.
FAQ
What is the maximum clamping voltage of the 1.5KE10A-T at its rated peak pulse current?
The 1.5KE10A-T has a maximum clamping voltage (VC) of 14.5V at 103A peak pulse current (IPP), measured under 1.0ms exponential waveform per IEC 61000-4-5. This value is guaranteed across the full operating temperature range (−55°C to +175°C) and defines the highest voltage imposed on the protected circuit during surge events.
Is the 1.5KE10A-T suitable for automotive applications requiring AEC-Q200 qualification?
No-the 1.5KE10A-T is not AEC-Q200 qualified. While Diodes offers AEC-Q200 versions in the P4SMA and SMAJ families, the 1.5KE series is designed for industrial and general-purpose surge suppression. For automotive use, consult Diodes' AEC-Q200-certified TVS portfolio such as the P6SMBJ10A-Q or SMAJ10AQ.
How does the DO-201 package affect thermal performance compared to surface-mount alternatives?
The DO-201 package enables 5.0W steady-state power dissipation at TL = 75°C with 9.5mm lead length, leveraging copper leadframe thermal conduction. Unlike SMD packages, its axial leads allow direct heat sinking via chassis mounting or thermal vias in through-hole pads, improving long-pulse thermal resilience-especially critical in 100ms+ surge scenarios like load dump.
Can the 1.5KE10A-T be used in bidirectional signal protection applications?
No-it is strictly unidirectional. The cathode band marking and asymmetric IV curve prevent safe operation on AC or polarity-reversing lines. For bidirectional protection, use the pin-compatible 1.5KE10CA, which exhibits symmetrical clamping in both polarities and identical VBR/VC ratings.
1.5KE10A-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):
- 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
1.5KE10A-T FAQ
1.How can I place an order for 1.5KE10A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE10A-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 1.5KE10A-T reliable?
The price and inventory of 1.5KE10A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE10A-T is usually 5 days.
3.What payment methods are accepted for 1.5KE10A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE10A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE10A-T?
1.5KE10A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE10A-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 1.5KE10A-T?
For technical support, including 1.5KE10A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE10A-T requirements.
6.How does Aetrix verify that 1.5KE10A-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE10A-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 1.5KE10A-T meets industry standards.
7.What is the process for return or replacement of 1.5KE10A-T?
All 1.5KE10A-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE10A-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 1.5KE10A-T part is unused and in its original packaging.
Return procedure for 1.5KE10A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE10A-T Tags
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ESD9B5.0ST5G
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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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