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Diodes Incorporated 1.5KE16A-T
- Part No.:
- 1.5KE16A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE16A-T.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:3,621
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Product details
Overview
1.5KE16A-T from Diodes Incorporated is a unidirectional 1500W transient voltage suppressor (TVS) diode with 13.6V reverse standoff voltage, 15.2V minimum breakdown voltage, and 22.5V maximum clamping voltage at 67A peak pulse current. It uses glass-passivated silicon die in DO-201 axial package and is designed for overvoltage protection in DC power rails and signal lines of industrial control systems.
For engineers reviewing the 1.5KE16A-T datasheet, 1.5KE16A-T pinout, 1.5KE16A-T application, or 1.5KE16A-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 ambient, and RoHS-compliant lead finish compatibility with reflow and wave soldering processes.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below 13.6V VRWM, breaks down sharply at ≥15.2V, and limits transient energy by diverting surge current to ground while holding voltage ≤22.5V at 67A. Its glass-passivated junction ensures stable leakage (<5μA at 13.6V) and repeatable breakdown characteristics.
The DO-201 package supports axial mounting with 9.5mm lead length for 5.0W steady-state dissipation at TL=75°C. With 0.086%/°C VBR temperature coefficient and -55°C to +175°C operating range, it maintains clamping performance across automotive under-hood and industrial ambient extremes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W at 1.0ms 10/1000μs waveform - sustains single-event surges per IEC 61000-4-5 Level 4 without failure |
| Reverse Standoff Voltage | 13.6V - maximum continuous DC voltage before significant leakage; sets upper limit for protected circuit operating voltage |
| Breakdown Voltage | 15.2V min / 16.8V max @ 1.0mA - defines precise conduction onset threshold for reliable overvoltage triggering |
| Clamping Voltage | 22.5V @ 67A IPP - maximum voltage seen by downstream circuit during worst-case 1.0ms surge event |
| Leakage Current | ≤5.0μA @ 13.6V - negligible standby power loss and no interference with low-power sensor or logic circuits |
| Operating Temperature | -55°C to +175°C - validated for under-hood automotive, motor drive, and industrial power supply environments |
Pinout & Package
DO-201 axial package with tin-finished leads; cathode indicated by band on body. Leads are solderable per MIL-STD-202 Method 208, rated for 200A non-repetitive forward surge (8.3ms half-sine).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during reverse-biased clamping | Connected to protected line; conducts surge current to ground when voltage exceeds VBR |
| Cathode | Current exit point during clamping; marked with band | Connected to system ground or low-impedance return path; establishes polarity-sensitive protection |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance (±5%) and <5μA leakage at VRWM across temperature and lifetime |
| 1500W peak pulse rating | Withstands 1.0ms 10/1000μs transients up to 67A - meets IEC 61000-4-5 Level 4 immunity requirements |
| RoHS-compliant lead finish | Tin-plated axial leads compatible with Pb-free reflow profiles and legacy wave soldering processes |
| Low VBR tempco | 0.086%/°C variation enables predictable clamping across -55°C to +175°C ambient without recalibration |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and current-sense amplifiers against inductive kickback from 24V DC solenoids and relay coils. IC Role / Device Role: Unidirectional shunt clamp placed between driver output and ground. Use Value: Limits transient voltage to ≤22.5V, preventing latch-up or oxide damage in 30V-rated MOSFET drivers and op-amps. |
Use Scenario: Surge suppression on LIN bus lines exposed to load dump and jump-start events in vehicle door modules. IC Role / Device Role: Line-to-ground TVS on bidirectional LIN transceiver I/O pins. Use Value: Clamps 100V/1000μs transients to safe levels while maintaining <5μA leakage to preserve bus idle voltage integrity. |
| Programmable Logic Controllers | Telecom Power Supplies |
Use Scenario: Input rail protection for 24V DC input terminals subject to field wiring faults and lightning-induced surges. IC Role / Device Role: Primary front-end clamp ahead of DC-DC converter and EMI filter. Use Value: Absorbs 1500W surge energy without degradation, enabling compliance with IEC 61000-4-4 fast transient burst immunity. |
Use Scenario: Secondary-side overvoltage protection on +48V telecom rectifier outputs feeding distributed power architecture. IC Role / Device Role: Unidirectional clamp between output rail and chassis ground. Use Value: Maintains 22.5V clamping ceiling at 67A, safeguarding 36V-rated hot-swap controllers and PMBus supervisors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | Same 16V nominal breakdown but SMB package (surface-mount); 600W peak power vs. 1500W | Lower surge capacity suits PCB space-constrained designs where IEC 61000-4-5 Level 3 (1kV) suffices | Select when board real estate is limited and peak surge current ≤33A is acceptable |
| 1.5SMC16A | Same DO-201 package and 1500W rating, but SMC-style marking and slightly higher clamping (23.0V) | Identical mechanical fit but requires validation of 0.5V higher clamping margin in sensitive 15V logic interfaces | Choose for drop-in replacement where 23.0V VC is within protected IC's absolute maximum rating |
Compared with 1.5KE16A-T, SMBJ16A trades surge robustness for compactness, while 1.5SMC16A offers identical power handling but demands verification of clamping headroom in voltage-critical circuits.
Availability
1.5KE16A-T is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and programmable logic controllers requiring stable component supply and long-term obsolescence management.
Supply support for 1.5KE16A-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 distribution operations across Asia, Europe, and North America.
The 1.5KE series was developed specifically for high-energy transient suppression in harsh-environment power electronics, targeting applications demanding >1000W surge capability and extended temperature reliability.
FAQ
What is the difference between 1.5KE16A-T and 1.5KE16CA-T?
The "A" suffix denotes unidirectional operation (anode-to-cathode conduction only), while "CA" indicates bidirectional symmetry (clamps both positive and negative transients). 1.5KE16A-T has a cathode band marking and is used for DC rail protection; 1.5KE16CA-T lacks the band and protects AC or differential signals like RS-485 or CAN bus lines.
Can 1.5KE16A-T be used in place of a Zener diode for voltage regulation?
No - this device is optimized for transient suppression, not steady-state regulation. Its 5.0W steady-state dissipation is insufficient for continuous power regulation, and its VBR tolerance (±5%) and temperature coefficient (0.086%/°C) exceed typical Zener regulation requirements. Use dedicated Zener diodes like BZX84-C15 for regulation tasks.
What is the maximum allowable lead temperature during soldering?
The DO-201 package supports lead temperatures up to 260°C for 10 seconds during hand soldering or wave soldering, per MIL-STD-202 Method 208. Reflow profiles must comply with J-STD-020 Level 1 moisture sensitivity, and preheating above 150°C is recommended to avoid thermal shock to the glass-passivated junction.
Is 1.5KE16A-T qualified to AEC-Q101 for automotive use?
No - while Diodes Incorporated offers AEC-Q101-qualified TVS devices (e.g., DZ23 series), the 1.5KE16A-T is not AEC-Q101 certified. For automotive applications requiring formal qualification, contact Diodes' automotive team for PPAP-capable alternatives such as the P4SMAJ16A or SMAJ16A-Q.
1.5KE16A-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):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 67A
- 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
1.5KE16A-T FAQ
1.How can I place an order for 1.5KE16A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE16A-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 1.5KE16A-T reliable?
The price and inventory of 1.5KE16A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE16A-T is usually 5 days.
3.What payment methods are accepted for 1.5KE16A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE16A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE16A-T?
1.5KE16A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE16A-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 1.5KE16A-T?
For technical support, including 1.5KE16A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE16A-T requirements.
6.How does Aetrix verify that 1.5KE16A-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE16A-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 1.5KE16A-T meets industry standards.
7.What is the process for return or replacement of 1.5KE16A-T?
All 1.5KE16A-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE16A-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 1.5KE16A-T part is unused and in its original packaging.
Return procedure for 1.5KE16A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE16A-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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Diodes Incorporated
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