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Vishay General Semiconductor - Diodes Division 1.5KE16CA/54
- Part No.:
- 1.5KE16CA/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE16CA/54.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:5,040
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Product details
Overview
1.5KE16CA/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge protection in power and signal lines. It features a 1500 W peak pulse power rating (10/1000 µs), 16 V nominal breakdown voltage (VBR = 15.2–16.8 V at IT = 1.0 mA), 13.6 V maximum stand-off voltage (VWM), and clamps to ≤22.5 V at 66.7 A peak pulse current - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line conditioning.
For engineers reviewing the 1.5KE16CA/54 datasheet, 1.5KE16CA/54 pinout, 1.5KE16CA/54 application, or 1.5KE16CA/54 equivalent, this device delivers verified bidirectional clamping performance with AEC-Q101-qualified variants available, low incremental surge resistance, and fast sub-nanosecond response - critical when selecting TVS components for ESD and lightning-induced transient suppression in 12 V/24 V systems.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical electrical characteristics in forward and reverse directions. Its glass-passivated junction enables stable breakdown behavior under repetitive 10/1000 µs surges at 0.01% duty cycle, and it maintains clamping integrity up to TJ = 175 °C.
The device uses a DO-201AE package with axial leads, rated for 200 A non-repetitive forward surge (unidirectional only), and exhibits a temperature coefficient of VBR of +0.086 %/°C - enabling predictable voltage drift compensation in thermally demanding environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 1500 W - sustains single high-energy transients without failure, suitable for IEC 61000-4-5 Level 4 compliance |
| Breakdown Voltage VBR | 15.2–16.8 V at 1.0 mA - defines precise clamping onset threshold for 12 V rail protection |
| Stand-off Voltage VWM | 13.6 V - ensures no conduction during normal 12 V system operation, minimizing leakage |
| Clamping Voltage VC | ≤22.5 V at 66.7 A - limits downstream voltage stress to safe levels for 3.3 V/5 V ICs and MOSFET gates |
| Operating Temperature | −55 °C to +175 °C - supports under-hood automotive and industrial control cabinet deployment |
| Package | DO-201AE (axial lead) - compatible with through-hole PCB assembly and manual repair/rework |
| Leakage Current ID | ≤1.0 µA at VWM - prevents measurable power loss in battery-backed or low-quiescent circuits |
Pinout & Package
1.5KE16CA/54 is housed in a DO-201AE molded epoxy package with two axial leads. No polarity marking is present on bidirectional variants; terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge path terminal | Either lead serves as input/output for transient energy diversion - no orientation required during placement |
| Case | Non-conductive epoxy body | Provides UL 94 V-0 flammability rating and mechanical robustness against vibration and thermal cycling |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress |
| 1500 W peak pulse power (10/1000 µs) | Handles high-energy transients from inductive switching or nearby lightning strikes without degradation |
| Sub-nanosecond response time | Clamps within 1 ns - faster than MOVs or polymer-based protectors, preserving signal integrity |
| AEC-Q101 qualification (HE3 variants) | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance |
| Low incremental surge resistance | Minimizes VC overshoot during high di/dt events, improving protection margin for sensitive loads |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus nodes and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across signal/power lines to divert transients before reaching MCU ADC or transceiver pins. Use Value: Maintains 13.6 V stand-off while clamping to 22.5 V - ensuring sensor signal fidelity and preventing latch-up in 3.3 V microcontrollers. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and relay contact bounce. IC Role / Device Role / Timing Role: Front-end transient suppressor on isolated input channels, absorbing energy before optocoupler or Schmitt trigger stages. Use Value: Withstands 1500 W pulses without degradation, enabling >100,000 surge cycles per IEC 61000-4-5 compliance testing. |
| Telecom Line Surge Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding RS-485/RS-232 communication ports in base stations and remote terminal units from induced lightning surges on long cable runs. IC Role / Device Role / Timing Role: Bidirectional shunt protector installed between differential pair and ground, operating symmetrically on both lines. Use Value: Symmetric VBR (15.2–16.8 V) and low capacitance (<100 pF) preserve signal edge rate and minimize jitter on multi-Mbps links. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Across-motor terminals to clamp inductive kickback during PWM commutation or sudden shutdown. Use Value: 175 °C max junction temperature and 200 A IFSM rating allow sustained operation in thermally constrained appliance enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ16CA | DO-214AA (SMB) surface-mount package; same VBR range but lower PPPM (600 W) | Preferred for space-constrained PCBs where reflow assembly is used; unsuitable for high-energy IEC 61000-4-5 Level 4 | Select SMBJ16CA only when board area is limited and surge threat level is ≤Level 3. |
| 1.5KE16A | Unidirectional variant; identical VBR, VWM, and clamping specs but marked cathode band | Required where DC bias exists and polarity-aware clamping is needed (e.g., DC power rails with defined ground reference) | Choose 1.5KE16A for unidirectional 12 V supply protection; use 1.5KE16CA/54 only when AC or floating-line protection is needed. |
Compared with SMBJ16CA and 1.5KE16A, the 1.5KE16CA/54 uniquely combines bidirectional symmetry, 1500 W surge capacity, and through-hole DO-201AE robustness - making it the sole choice for high-energy, polarity-agnostic protection in legacy industrial and automotive harness-connected systems.
Availability
1.5KE16CA/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, telecom line conditioning, and consumer motor drive protection requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE16CA/54 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1.5KE series was engineered specifically for high-power transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where robustness against lightning, load dump, and ESD is non-negotiable.
FAQ
What is the breakdown voltage tolerance of the 1.5KE16CA/54?
The 1.5KE16CA/54 has a specified breakdown voltage (VBR) range of 15.2 V to 16.8 V at test current IT = 1.0 mA, representing ±5.0% tolerance about the nominal 16 V rating. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable design margining in 12 V system protection schemes.
Is the 1.5KE16CA/54 RoHS compliant and halogen-free?
Yes, the 1.5KE16CA/54 carries the E3 suffix, indicating full RoHS compliance per EU Directive 2011/65/EU and halogen-free status per IEC 61249-2-21. The molding compound meets UL 94 V-0 flammability rating, and matte tin-plated leads comply with J-STD-002 solderability standards.
Does the 1.5KE16CA/54 require a heatsink for continuous operation?
No heatsink is required for transient suppression duty, as the 1.5KE16CA/54 is rated for 6.5 W power dissipation on an infinite heatsink at TL = 75 °C - sufficient for its intended intermittent surge role. Continuous DC power dissipation capability is not specified; the device is designed exclusively for short-duration pulse clamping, not steady-state regulation.
Can the 1.5KE16CA/54 be used in parallel to increase surge current handling?
Yes, multiple 1.5KE16CA/54 units may be paralleled to distribute higher peak currents, provided matched VBR units are selected and layout minimizes inductance imbalance. However, derating is required: total IPPM increases sub-linearly due to VBR mismatch, and thermal coupling must be managed to avoid localized overheating during repetitive events.
What is the maximum clamping voltage of the 1.5KE16CA/54 at its rated peak pulse current?
The 1.5KE16CA/54 clamps to a maximum of 22.5 V at its rated peak pulse current of 66.7 A (10/1000 µs waveform). This value is guaranteed per datasheet Table "ELECTRICAL CHARACTERISTICS" and represents the upper limit of voltage seen by protected circuitry during worst-case transient conditions.
1.5KE16CA/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 66.7A
- 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:
- 1.5KE
1.5KE16CA/54 FAQ
1.How can I place an order for 1.5KE16CA/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE16CA/54 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 1.5KE16CA/54 reliable?
The price and inventory of 1.5KE16CA/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE16CA/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE16CA/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE16CA/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE16CA/54?
1.5KE16CA/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE16CA/54 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 1.5KE16CA/54?
For technical support, including 1.5KE16CA/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE16CA/54 requirements.
6.How does Aetrix verify that 1.5KE16CA/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE16CA/54 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 1.5KE16CA/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE16CA/54?
All 1.5KE16CA/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE16CA/54, 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 1.5KE16CA/54 part is unused and in its original packaging.
Return procedure for 1.5KE16CA/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE16CA/54 Tags
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