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Taiwan Semiconductor Corporation 1.5KE16
- Part No.:
- 1.5KE16
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE16.pdf
- Description:
- 1500W, 16V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:7,430
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Product details
Overview
1.5KE16 from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode with a nominal breakdown voltage of 16V, minimum VBR of 14.4V at 1.0mA test current, maximum clamping voltage of 23.5V at 67A peak pulse current, and DO-201 axial package. It protects automotive power-line and industrial control inputs against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE16 datasheet, 1.5KE16 pinout, 1.5KE16 application, or 1.5KE16 equivalent, key selection criteria include its 14.4–17.6V VBR range, 12.9V working stand-off voltage, sub-1ps response time, <1µA leakage above 10V, and AEC-Q101 qualification availability in variant 1.5KE16A.
Technical Context
The 1.5KE16 operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its breakdown threshold. Its low dynamic impedance ensures rapid clamping during 10/1000µs surge events, limiting downstream voltage to ≤23.5V at 67A.
It complies with ISO 7637-2 for automotive transient immunity and meets JESD201 Class 2 whisker resistance. The DO-201 package supports 5W steady-state dissipation at 75°C lead temperature with 0.375" copper pad mounting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT=1.0mA | 14.4V min / 17.6V max - defines reliable turn-on threshold under standardized test conditions |
| VWM | 12.9V - maximum continuous reverse operating voltage before significant leakage |
| VC @ IPP=67A | 23.5V - clamped voltage during 10/1000µs surge, directly limits stress on protected ICs |
| PPK | 1500W - peak pulse power handling per JEDEC standard waveform, critical for load dump survival |
| IPP | 67A - maximum non-repetitive surge current the device can safely divert |
| TJ max | +175°C - enables operation in under-hood automotive environments without thermal derating loss |
| Response time | <1.0ps - ensures clamping activation before transient energy couples into sensitive circuitry |
Pinout & Package
DO-201 axial package with cathode band marking; two-terminal device with no internal connections beyond anode and cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to system ground or low-side reference | Provides return path for clamped surge current; must be routed with low-inductance grounding |
| Cathode | Current entry point in reverse bias; connected to protected line (e.g., 12V rail) | Accepts transient energy from upstream source; polarity marking prevents incorrect installation |
Key Features
| Feature | Design Value |
|---|---|
| 1500W surge rating at 10/1000µs | Supports automotive load-dump protection per ISO 7637-2 without external series impedance |
| Clamping voltage ≤23.5V at 67A | Keeps downstream 16V-rated components (e.g., LDOs, microcontrollers) within safe operating area |
| Leakage current <1µA above 10V | Minimizes standby power loss in always-on vehicle modules like body controllers |
| AEC-Q101 qualified option (1.5KE16A) | Validated for automotive-grade reliability including temperature cycling and HTRB testing |
| DO-201 mechanical robustness | Withstands vibration and thermal shock in engine bay and chassis-mounted applications |
Applications
| Automotive Power Line Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: 12V battery feed to body control module exposed to load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and ground to clamp transients before they reach DC/DC converters and MCU power pins. Use Value: Limits voltage to ≤23.5V during 1500W surges, preventing latch-up or gate oxide damage in 24V-tolerant power management ICs. | Use Scenario: 24V digital input channel on programmable logic controller receiving signals from field sensors. IC Role / Device Role / Timing Role: Standoff protection element shunting EFT bursts (IEC 61000-4-4) and inductive kickback from solenoid drivers. Use Value: Sub-1ps response ensures clamping initiates before 5ns-fast EFT edges propagate into optocoupler or Schmitt-trigger input stages. |
| LED Driver Overvoltage Clamp | Motor Control Board Surge Suppression |
Use Scenario: Constant-current LED driver input subjected to back-EMF from nearby relay switching. IC Role / Device Role / Timing Role: Primary overvoltage clamp on input capacitor node, absorbing inductive energy before it stresses MOSFET gate drivers. Use Value: 12.9V VWM allows normal 12V operation while 23.5V VC protects 30V-rated buck controller ICs from overshoot. | Use Scenario: H-bridge gate driver supply rail exposed to motor regeneration spikes during braking. IC Role / Device Role / Timing Role: Rail-to-ground TVS suppressing >100V spikes generated by parasitic inductance in PCB traces and motor windings. Use Value: 1500W rating handles repetitive 10/1000µs pulses common in industrial motor drives without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ16A | Same 16V nominal, DO-214AC package, 400W PPK, 33.2V VC @ 12.3A | Lower power rating suits consumer electronics; not AEC-Q101 qualified | Select when space-constrained SMD layout required and surge energy ≤400W |
| ON Semiconductor 1N6267A | 6.8V nominal, same DO-201 package, 1500W, but lower VBR (6.45–7.14V) | Designed for 5V logic rail protection, not 12V/24V systems | Choose only for sub-10V applications requiring identical form factor and surge capability |
Compared with 1.5KE16, SMAJ16A offers surface-mount compatibility but sacrifices 73% peak power handling and clamping performance; 1N6267A shares packaging and surge rating but targets entirely different voltage domains-neither is pin-compatible nor functionally interchangeable without circuit redesign.
Availability
1.5KE16 is available at Aetrix Electronics and suitable for automotive power-line protection, industrial PLC input hardening, LED driver overvoltage clamping, and motor control board surge suppression requiring stable component supply across production lifecycles.
Supply support for 1.5KE16 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and consumer markets since 1979.
The 1.5KE series was designed specifically for high-energy transient suppression in harsh environments, emphasizing AEC-Q101 qualification, ISO 7637-2 compliance, and robust DO-201 packaging for under-hood and factory-floor deployment.
FAQ
What is the breakdown voltage tolerance of the 1.5KE16?
The 1.5KE16 has a guaranteed breakdown voltage range of 14.4V to 17.6V at 1.0mA test current, representing ±10% tolerance around its nominal 16V rating. This specification is measured per JEDEC standard after 30ms square-wave pulse application and ensures consistent clamping behavior across production lots. The 1.5KE16 maintains this tolerance without requiring binning or post-manufacture screening.
Is the 1.5KE16 suitable for bidirectional transient protection?
No, the 1.5KE16 is a unidirectional TVS diode intended only for DC circuits with defined polarity. Bidirectional protection requires devices with CA suffix (e.g., 1.5KE16CA) or explicitly marked bipolar construction. Using 1.5KE16 in AC or reversible-polarity applications risks failure during positive half-cycles due to lack of forward conduction capability beyond its 3.5V VF rating.
What is the maximum clamping voltage of the 1.5KE16 during a surge event?
The 1.5KE16 clamps to a maximum of 23.5V when subjected to its rated 67A peak pulse current under the standard 10/1000µs waveform. This value is guaranteed across temperature and lifetime, and represents the highest voltage that will appear across protected circuitry during worst-case surge conditions. It is measured with specified test fixture impedance and trace length per JEDEC standards.
Does the 1.5KE16 meet automotive qualification standards?
The base 1.5KE16 is not AEC-Q101 qualified; however, its variant 1.5KE16A is fully AEC-Q101 certified for automotive use. The AEC-Q101 qualification includes stress tests for temperature cycling, highly accelerated life testing (HALT), and unbiased highly accelerated stress testing (uHAST). Designers requiring automotive-grade reliability must specify 1.5KE16A-not 1.5KE16-to ensure compliance.
How does the 1.5KE16 compare to the 1.5KE16A in terms of electrical parameters?
The 1.5KE16A has tighter breakdown voltage bounds (15.2–16.8V vs. 14.4–17.6V for 1.5KE16), higher working stand-off voltage (13.6V vs. 12.9V), and slightly lower clamping voltage (22.5V vs. 23.5V at 70A). Both share identical DO-201 packaging, 1500W surge rating, and thermal specifications. The 1.5KE16A's improved tolerances support more precise system-level margining in safety-critical designs.
1.5KE16 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12.9V
- Voltage - Breakdown (Min):
- 14.4V
- Voltage - Clamping (Max) @ Ipp:
- 23.5V
- 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:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE16 FAQ
1.How can I place an order for 1.5KE16 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE16 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 1.5KE16 reliable?
The price and inventory of 1.5KE16 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE16 is usually 5 days.
3.What payment methods are accepted for 1.5KE16?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE16 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE16?
1.5KE16 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE16 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 1.5KE16?
For technical support, including 1.5KE16 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE16 requirements.
6.How does Aetrix verify that 1.5KE16 is sourced from the original manufacturer or authorized distributors?
All 1.5KE16 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 1.5KE16 meets industry standards.
7.What is the process for return or replacement of 1.5KE16?
All 1.5KE16 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE16, 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 1.5KE16 part is unused and in its original packaging.
Return procedure for 1.5KE16:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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