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Diodes Incorporated 1.5KE13CA-T
- Part No.:
- 1.5KE13CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE13CA-T.pdf
- Description:
- TVS DIODE 11.1VWM 18.2VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:8,427
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Product details
Overview
1.5KE13CA-T from Diodes Incorporated is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, designed for 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, and clamps transients to 18.2V at 82A peak pulse current. Used in automotive electronics, industrial power supplies, and telecom interfaces where fast-response surge suppression is required.
For engineers reviewing the 1.5KE13CA-T datasheet, 1.5KE13CA-T pinout, 1.5KE13CA-T application, or 1.5KE13CA-T equivalent, this page delivers verified electrical parameters, DO-201 terminal configuration, bidirectional clamping behavior, thermal derating guidance, and RoHS-compliant sourcing details directly applicable to ESD/EMI hardening and IEC 61000-4-5 compliance design.
Technical Context
This bidirectional TVS diode operates symmetrically across both polarities, with identical clamping performance in forward and reverse directions. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<5μA at 11.1V), while the axial-leaded DO-201 package supports high surge energy dissipation without thermal runaway.
The device responds within <1.0ns to transient events, limiting voltage spikes before downstream ICs are damaged. Its 0.081%/°C voltage temperature coefficient enables predictable performance across –55°C to +175°C operating range, critical for under-hood automotive and industrial control applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W at 1.0ms 10/1000μs waveform - sustains single high-energy surges without failure |
| Reverse Standoff Voltage | 11.1V - maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage | 12.4V min @ 1mA - precise threshold where avalanche conduction initiates reliably |
| Clamping Voltage | 18.2V @ 82A - maximum voltage seen by protected circuit during worst-case surge |
| Peak Pulse Current | 82A - highest transient current the device can shunt while maintaining clamping spec |
| Operating Temperature | –55°C to +175°C - validated for under-hood, motor drive, and high-ambient industrial use |
| Leakage Current | ≤5.0μA @ 11.1V - negligible standby power loss and minimal impact on high-impedance circuits |
Pinout & Package
Package: DO-201 axial-leaded epoxy package (UL 94V-0 rated), 25.4mm overall length, 5.0mm body diameter, 1.0g weight. Leads are tin-finished, solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to lower-potential side of protected line; forms symmetrical clamp path with cathode |
| Cathode | Current entry point in reverse bias | Connected to higher-potential side; enables bidirectional clamping without polarity dependency |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VRWM, VBR, and VC in both polarities - eliminates need for polarity-aware placement |
| Glass-passivated die | Stable avalanche characteristics over 1000+ surge cycles - prevents parameter drift in repeated transient events |
| RoHS & Halogen-free | <900ppm Br, <900ppm Cl, <1000ppm Sb - meets automotive green material requirements and end-of-life recycling mandates |
| Fast response time | <1.0ns turn-on - limits voltage overshoot before sensitive logic or analog inputs are stressed |
| High surge robustness | 200A non-repetitive forward surge rating - withstands inrush currents during hot-plug or load-dump events |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting 12V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between battery rail and DC-DC input stage. Use Value: Limits transient voltage to ≤18.2V, preventing damage to 24V-rated regulators and microcontrollers. |
Use Scenario: Shielding 24V digital input modules from field-wiring induced surges and inductive kickback. IC Role / Device Role / Timing Role: Front-end transient absorber on isolated optocoupler input channels. Use Value: Maintains signal integrity by clamping >1kV transients to safe levels within nanoseconds. |
| Telecom Line Interface | AC-DC Adapter Secondary Side |
|
Use Scenario: Safeguarding RS-485 transceivers connected to long outdoor data cables exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Common-mode and differential-mode surge suppressor across A/B bus lines and ground. Use Value: Symmetric clamping ensures balanced line protection without skew or common-mode distortion. |
Use Scenario: Suppressing switching noise and output capacitor discharge spikes on 5V/12V secondary outputs of offline SMPS. IC Role / Device Role / Timing Role: Low-leakage shunt clamp across output capacitor terminals. Use Value: Prevents output voltage overshoot exceeding 18.2V during startup or short-circuit recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ13CA | 600W rating, SMB package, 13.3V VRWM, 21.5V VC @ 28.8A | Lower power handling; surface-mount only; suited for PCB space-constrained designs | Select when board area is limited and surge energy rarely exceeds 600W |
| 1.5SMC13CA | 1500W rating, SMC package, 13.3V VRWM, 21.5V VC @ 70A | Same power rating but SMC surface-mount package; 3.5mm x 7.0mm footprint | Choose for automated assembly and higher thermal coupling to copper pour vs. axial leads |
Compared with 1.5KE13CA-T, SMBJ13CA offers smaller size but reduced surge capacity, while 1.5SMC13CA matches power rating but requires rework of leaded-to-SMT layout - both lack the DO-201's axial mechanical retention and through-hole thermal mass advantage.
Availability
1.5KE13CA-T is available at Aetrix Electronics and suitable for automotive power distribution, industrial PLC I/O protection, and telecom line interface applications requiring stable component supply and long-term obsolescence management.
Supply support for 1.5KE13CA-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 manufacturing certified to IATF 16949 and product qualification to AEC-Q101 standards.
This part belongs to the 1.5KE series of high-power axial TVS diodes, engineered specifically for robust overvoltage protection in harsh environments where reliability under repetitive surge stress is mandatory.
FAQ
What does the "CA" suffix indicate in 1.5KE13CA-T?
The "CA" suffix denotes a bidirectional configuration: two back-to-back avalanche diodes in a single DO-201 package, enabling symmetrical clamping for AC signals or polarity-agnostic DC protection. Unlike unidirectional "A" variants, it has no cathode band marking and conducts equally in both directions above its standoff voltage.
Can 1.5KE13CA-T be used in place of a unidirectional TVS like 1.5KE13A-T?
No - 1.5KE13CA-T is bidirectional and lacks polarity marking, making it unsuitable where directional clamping is required (e.g., protecting a single-rail supply referenced to ground). Substitution would cause unintended conduction in normal operation if installed with incorrect orientation relative to circuit polarity.
How does the DO-201 package affect thermal performance compared to SMC or SMB?
The DO-201's axial leads provide superior heat sinking through PCB traces and chassis mounting, allowing higher steady-state power dissipation (5.0W at 75°C lead temperature) than surface-mount equivalents. Its larger thermal mass also improves survivability during repetitive 1500W pulses without localized junction overheating.
Is 1.5KE13CA-T compliant with AEC-Q101 for automotive use?
While Diodes Incorporated manufactures this series in IATF 16949-certified facilities and supports PPAP, the 1.5KE13CA-T itself is not individually AEC-Q101 qualified. For automotive applications requiring formal qualification, contact Diodes' automotive team for AEC-Q101-tested alternatives such as the P4SMAJ13CA or SMAJ13CA series.
1.5KE13CA-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):
- 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
1.5KE13CA-T FAQ
1.How can I place an order for 1.5KE13CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE13CA-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 1.5KE13CA-T reliable?
The price and inventory of 1.5KE13CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE13CA-T is usually 5 days.
3.What payment methods are accepted for 1.5KE13CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE13CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE13CA-T?
1.5KE13CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE13CA-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 1.5KE13CA-T?
For technical support, including 1.5KE13CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE13CA-T requirements.
6.How does Aetrix verify that 1.5KE13CA-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE13CA-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 1.5KE13CA-T meets industry standards.
7.What is the process for return or replacement of 1.5KE13CA-T?
All 1.5KE13CA-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE13CA-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 1.5KE13CA-T part is unused and in its original packaging.
Return procedure for 1.5KE13CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE13CA-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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Diodes Incorporated
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