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Taiwan Semiconductor Corporation 1.5KE16C
- Part No.:
- 1.5KE16C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE16C.pdf
- Description:
- 1500W, 16V, 10%, BIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:8,186
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Product details
Overview
1.5KE16C from Taiwan Semiconductor is a unidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with 16V nominal breakdown voltage (VBR min 14.4V, max 17.6V), 12.9V working stand-off voltage (VWM), and 23.5V clamping voltage (VC) at 67A peak impulse current. It protects automotive and industrial power rails against ISO 7637-2 Pulse 1/2a/2b/3a/3b transients.
For engineers reviewing the 1.5KE16C datasheet, 1.5KE16C pinout, 1.5KE16C application, or 1.5KE16C equivalent, key selection criteria include clamping performance under 10/1000μs surge, low dynamic impedance, AEC-Q101 qualification status, and compatibility with lead-free reflow and JESD201 Class 2 whisker resistance.
Technical Context
The 1.5KE16C operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its VBR range (14.4–17.6V @ 1mA test current). Its fast response time (<1.0ps from 0V to VBR) ensures suppression before sensitive downstream circuitry sustains damage.
It delivers 1500W peak pulse power per 10/1000μs waveform, with thermal derating above 25°C ambient and maximum junction temperature of +175°C. The device exhibits <1μA blocking leakage at 12.9V and forward voltage of 3.5V @ 50A for unidirectional conduction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR @ IT=1mA | 14.4V min / 17.6V max - defines precise avalanche onset threshold for reliable overvoltage detection |
| VWM | 12.9V - maximum continuous reverse operating voltage without significant leakage |
| VC @ IPP=67A | 23.5V - clamped voltage during full 1500W surge, limiting stress on protected ICs |
| PPK | 1500W - peak pulse power handling capability per JEDEC standard 10/1000μs waveform |
| ID @ VWM | <1μA - ultra-low leakage preserves system standby power and signal integrity |
| TJ max | +175°C - enables operation in under-hood automotive and high-temperature industrial environments |
| Polarity | Cathode band marked - unidirectional configuration prevents forward conduction during normal operation |
Pinout & Package
Package: DO-201 axial-leaded through-hole package with pure tin-plated leads, UL 94V-0 molding compound, and 0.090g mass. Cathode band identifies polarity for correct PCB orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; conducts during transient clamp |
| Cathode | Protected line terminal | Connected to line being protected (e.g., 12V rail); blocks normal operation, avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| ISO 7637-2 compliance | Meets Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line disturbance) immunity requirements |
| Low dynamic impedance | Enables tight clamping margin between VWM and VC, minimizing voltage overshoot during fast transients |
| Fast response time | <1.0ps rise-to-avalanche ensures suppression initiates before nanosecond-scale EFT events propagate |
| Halogen-free & RoHS | Complies with IEC 61249-2-21 and EU RoHS Directive for environmentally constrained applications |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: 12V battery-supplied ECUs exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp transients before DC-DC converters or microcontrollers. Use Value: Limits clamped voltage to 23.5V during 1500W surges, preventing latch-up or gate oxide damage in downstream 3.3V/5V logic. | Use Scenario: Digital input modules receiving 24V sensor signals in factory automation cabinets. IC Role / Device Role / Timing Role: Front-end protection element absorbing EFT bursts (IEC 61000-4-4) and inductive kickback from solenoid drivers. Use Value: Sub-1μA leakage avoids false triggering of optocoupled inputs; DO-201 mechanical robustness withstands vibration and thermal cycling. |
| LED Driver Overvoltage Clamp | Telecom Line Interface Protection |
Use Scenario: Constant-current LED drivers powered from unregulated 12–24V supplies in outdoor signage. IC Role / Device Role / Timing Role: Parallel-connected TVS across driver output to absorb inductive energy from cable disconnect events. Use Value: 23.5V clamping prevents overvoltage failure of LED strings rated for ≤24V forward drop, extending field lifetime. | Use Scenario: Low-voltage analog interface circuits connected to long external wiring in building management systems. IC Role / Device Role / Timing Role: Primary protection stage shunting induced lightning-induced surges before secondary TVS or transient filters. Use Value: 1500W rating handles multi-kV induced transients; DO-201 axial form factor allows easy placement at board edge entry points. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16A | Surface-mount SMB package; 16V VBR (min 14.4V), 23.2V VC @ 64.5A; 600W rating | Limited to lower-energy transients; requires PCB layout change from axial to SMD | Select when space-constrained designs prioritize footprint over peak power handling |
| 1N6267A | Same DO-201 package; 6.8V nominal; not applicable for 16V rail protection | Designed for 5V logic-level circuits, not 12V/24V power rails | Not suitable as direct functional replacement; only valid for lower-voltage system variants |
Compared with 1.5KE16C, SMBJ16A offers compact mounting but sacrifices 60% peak power capacity and requires layout redesign, while 1N6267A serves entirely different voltage domains and cannot substitute in 12V automotive or industrial applications.
Availability
1.5KE16C is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC input conditioning, and LED driver overvoltage protection requiring stable component supply and AEC-Q101-compliant surge resilience.
Supply support for 1.5KE16C 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs for automotive, industrial, and consumer markets.
The 1.5KE series was engineered specifically for high-reliability 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 clamping voltage of the 1.5KE16C under maximum surge conditions?
The 1.5KE16C clamps to 23.5V at 67A peak impulse current (IPP), corresponding to its full 1500W rating under the standard 10/1000μs waveform. This value is measured per JEDEC test conditions and represents the maximum voltage seen by protected circuitry during worst-case transient events. Designers must ensure downstream components tolerate this clamped level. The 1.5KE16C achieves this with low dynamic impedance and sub-nanosecond response.
Is the 1.5KE16C AEC-Q101 qualified?
Yes, the 1.5KE16C is AEC-Q101 qualified when ordered with the "H" suffix (e.g., 1.5KE16CH). Standard 1.5KE16C parts may not carry formal AEC-Q101 certification unless explicitly marked and procured as such. Always verify the ordering code and certificate documentation for automotive applications. The 1.5KE16C's construction-including JESD201 Class 2 whisker resistance and UL 94V-0 molding-supports qualification readiness.
What is the maximum operating temperature for the 1.5KE16C?
The 1.5KE16C has a maximum junction temperature (TJ) of +175°C and a storage temperature range of –55°C to +175°C. Its thermal performance is specified with derating curves for ambient temperatures above 25°C, especially critical in enclosed automotive or industrial enclosures. The DO-201 package's thermal resistance (RθJA) depends on PCB copper area; data shows 5W steady-state dissipation is achievable with 0.6" × 0.6" copper pads.
How does the 1.5KE16C differ from bidirectional TVS diodes like 1.5KE16CA?
The 1.5KE16C is unidirectional and features a cathode band marking, enabling it to block forward current while clamping reverse transients. In contrast, 1.5KE16CA is bidirectional with symmetrical breakdown in both polarities and no polarity marking. Use 1.5KE16C on DC power lines where polarity is fixed; use 1.5KE16CA only for AC-coupled or floating signal lines. The 1.5KE16C's forward voltage is 3.5V @ 50A, whereas 1.5KE16CA lacks defined forward conduction.
What packaging options are available for the 1.5KE16C?
The 1.5KE16C is supplied in DO-201 axial-leaded package, available in 1,250-piece tape-and-reel (1.5KE16CH) or 500-piece ammo box (1.5KE16CA0G) formats. Lead finish is pure tin, compliant with J-STD-002 solderability standards. No surface-mount variant exists for this exact part number; SMBJ16A is the closest SMD alternative but differs in power rating and footprint. The 1.5KE16C's DO-201 body measures 5.2mm diameter × 9.5mm length with 2.3mm lead diameter.
1.5KE16C 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:
- -
- Bidirectional Channels:
- 1
- 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
1.5KE16C FAQ
1.How can I place an order for 1.5KE16C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE16C 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 1.5KE16C reliable?
The price and inventory of 1.5KE16C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE16C is usually 5 days.
3.What payment methods are accepted for 1.5KE16C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE16C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE16C?
1.5KE16C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE16C 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 1.5KE16C?
For technical support, including 1.5KE16C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE16C requirements.
6.How does Aetrix verify that 1.5KE16C is sourced from the original manufacturer or authorized distributors?
All 1.5KE16C 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 1.5KE16C meets industry standards.
7.What is the process for return or replacement of 1.5KE16C?
All 1.5KE16C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE16C, 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 1.5KE16C part is unused and in its original packaging.
Return procedure for 1.5KE16C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE16C Tags
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