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Diodes Incorporated 1.5KE13A-T
- Part No.:
- 1.5KE13A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE13A-T.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:4,817
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Product details
Overview
1.5KE13A-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 a 11.1V reverse standoff voltage, 12.4V minimum breakdown voltage at 1mA test current, 18.2V maximum clamping voltage at 82A peak pulse current, and operates across –55°C to +175°C.
For engineers reviewing the 1.5KE13A-T datasheet, 1.5KE13A-T pinout, 1.5KE13A-T application, or 1.5KE13A-T equivalent, this part supports robust surge immunity in automotive body electronics, industrial I/O interfaces, and telecom power supply inputs where fast response (<1ns), low leakage (<5µA @ 11.1V), and glass-passivated reliability are required.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below VRWM (11.1V), avalanches sharply at VBR (12.4–13.7V), and limits transient energy by diverting up to 82A (10/1000µs waveform) while clamping to ≤18.2V. Its glass-passivated junction ensures stable leakage and long-term reliability under thermal cycling.
The DO-201 axial package enables through-hole mounting with 9.5mm lead length for 5.0W steady-state dissipation at TL=75°C. With 0.081%/°C VBR temperature coefficient and RoHS-compliant tin-plated leads, it meets automotive-grade handling requirements despite not being AEC-Q qualified per standard documentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W (10/1000µs waveform; defines maximum single-event surge energy absorption) |
| Reverse Standoff Voltage | 11.1V (maximum continuous DC voltage before significant leakage; sets operating rail margin) |
| Breakdown Voltage | 12.4V min @ 1mA (avalanche initiation threshold; ensures reliable turn-on before system damage) |
| Clamping Voltage | 18.2V max @ 82A (voltage seen by protected circuit during worst-case surge; determines downstream IC survivability) |
| Leakage Current | 5.0µA max @ 11.1V (low standby power loss; critical for battery-powered or high-impedance sensor nodes) |
| Operating Temperature | –55°C to +175°C (supports under-hood automotive, industrial motor drives, and outdoor telecom equipment) |
| Package | DO-201 (axial-leaded, epoxy-molded; compatible with wave soldering and manual repair) |
Pinout & Package
DO-201 package: axial-leaded, glass-passivated silicon junction, transfer-molded epoxy body (UL 94V-0), 1.12g typical weight. Cathode identified by band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current sink during clamping | Connected to protected line; conducts surge current to ground when voltage exceeds VBR |
| Cathode | Reference terminal / polarity marker | Marked with band; ties to system ground or lower-potential rail; defines unidirectional conduction direction |
Key Features
| Feature | Design Value |
|---|---|
| 1500W peak pulse rating | Enables protection against IEC 61000-4-5 Level 4 surges (4kV/2Ω) on 12V systems without cascading failure |
| Glass-passivated die | Reduces surface leakage and improves long-term stability in humid or contaminated environments |
| Fast response time (<1ns) | Clamps transients before sensitive downstream logic or analog circuits experience overvoltage stress |
| RoHS & Halogen-free | Meets EU Directive 2015/863/EU; <900ppm Br/Cl, <1000ppm Sb; supports green manufacturing compliance |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protects microcontroller GPIO and CAN transceiver power pins from load dump and ISO 7637-2 pulses in vehicle door modules. IC Role / Device Role: Primary shunt clamp on 12V supply rail upstream of LDO regulators. Use Value: Limits clamped voltage to 18.2V, ensuring downstream 24V-tolerant IO drivers and 5V LDOs remain within safe operating area during 100V/50ms load dump events. |
Use Scenario: Shields 24V digital input channels from field-wiring induced surges in factory automation cabinets. IC Role / Device Role: Front-end transient suppressor before optocoupler input stage. Use Value: Absorbs 1500W surges while maintaining <5µA leakage at 24V nominal, preventing false triggering of isolated inputs during standby. |
| Telecom Power Supply Input | Smart Meter AC/DC Converter |
Use Scenario: Safeguards secondary-side 48V DC distribution bus against lightning-induced surges entering via Ethernet or PoE interfaces. IC Role / Device Role: Secondary-side TVS on regulated output rail feeding PHY and management ICs. Use Value: Clamps to ≤18.2V within nanoseconds, protecting 3.3V/5V logic supplies fed from buck converters without requiring additional series impedance. |
Use Scenario: Guards auxiliary 12V rail derived from mains-connected SMPS against fast transients from grid switching or nearby motor loads. IC Role / Device Role: DC bus protector between rectifier output and bulk capacitor. Use Value: Withstands repeated 82A pulses while exhibiting only 0.081%/°C VBR drift, ensuring consistent clamping across meter operating temperature range (–25°C to +70°C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13A | Same 13V VBR range but 600W rating (SMB package); lower clamping voltage (21.5V @ 28.2A) | Better suited for space-constrained PCBs; lower peak current capacity reduces protection margin for high-energy surges | Select when board area is limited and surge threat level is IEC 61000-4-5 Level 2 (1kV/42Ω) |
| 1N6267A | Legacy 1500W DO-201 device; identical VBR/VC specs but higher IR (10µA @ VR) and no halogen-free certification | Acceptable for non-green industrial designs; lacks RoHS 3 compliance and modern leakage performance | Choose only for legacy redesigns where material compliance is not mandated |
Compared with SMBJ13A and 1N6267A, the 1.5KE13A-T delivers superior surge energy handling in a standardized through-hole format with certified environmental compliance-making it optimal for new automotive and industrial designs requiring both robustness and regulatory alignment.
Availability
1.5KE13A-T is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and telecom power supply inputs requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for 1.5KE13A-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, specializing in high-reliability protection, power management, and signal integrity solutions for industrial, automotive, and computing markets.
The 1.5KExxA series belongs to Diodes' transient voltage suppressor portfolio, engineered specifically for high-energy surge immunity in harsh-environment DC power and interface protection applications.
FAQ
What is the difference between 1.5KE13A-T and 1.5KE13CA-T?
The 1.5KE13A-T is unidirectional, featuring a cathode band marking and conducting only in reverse bias to ground; the 1.5KE13CA-T is bidirectional, symmetrically clamping both polarities, marked without a band, and used where AC-coupled or floating lines require protection in both directions-such as telecom data lines or transformer-isolated interfaces.
Can 1.5KE13A-T be used in place of a Zener diode for voltage regulation?
No-it is not designed for continuous regulation. While it exhibits Zener-like avalanche behavior, its 1500W pulse rating and 5.0W steady-state limit mean sustained DC operation above 11.1V causes thermal runaway. It functions only as a transient shunt clamp, not a precision reference or regulator.
What is the significance of the "-T" suffix in 1.5KE13A-T?
The "-T" denotes tape-and-reel packaging: 1,000 units per 13-inch reel, optimized for automated SMT placement-even though the DO-201 package is axial and typically through-hole mounted. This format supports mixed-technology assembly lines and inventory control for high-volume production.
Does 1.5KE13A-T meet AEC-Q200 for automotive use?
No-this part is not AEC-Q200 qualified. Diodes states that AEC-Q qualified versions require explicit change control, PPAP capability, and IATF 16949 manufacturing; the 1.5KE13A-T is a commercial-grade TVS intended for non-safety-critical automotive subsystems unless separately validated by the end customer.
1.5KE13A-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):
- 11.1V
- Voltage - Breakdown (Min):
- 12.4V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 82A
- 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
1.5KE13A-T FAQ
1.How can I place an order for 1.5KE13A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE13A-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 1.5KE13A-T reliable?
The price and inventory of 1.5KE13A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE13A-T is usually 5 days.
3.What payment methods are accepted for 1.5KE13A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE13A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE13A-T?
1.5KE13A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE13A-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 1.5KE13A-T?
For technical support, including 1.5KE13A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE13A-T requirements.
6.How does Aetrix verify that 1.5KE13A-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE13A-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 1.5KE13A-T meets industry standards.
7.What is the process for return or replacement of 1.5KE13A-T?
All 1.5KE13A-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE13A-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 1.5KE13A-T part is unused and in its original packaging.
Return procedure for 1.5KE13A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE13A-T Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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