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Diodes Incorporated 1.5KE16CA-T
- Part No.:
- 1.5KE16CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE16CA-T.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:8,298
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Product details
Overview
1.5KE16CA-T from Diodes Incorporated is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 13.6V reverse standoff voltage, 15.2V minimum breakdown voltage at 1mA test current, 22.5V maximum clamping voltage at 67A peak pulse current, and operates across -55°C to +175°C.
For engineers reviewing the 1.5KE16CA-T datasheet, 1.5KE16CA-T pinout, 1.5KE16CA-T application, or 1.5KE16CA-T equivalent, key selection criteria include clamping ratio (VC/VRWM = 1.66), unidirectional/bidirectional configuration, DO-201 axial lead compatibility with through-hole PCB layouts, and AEC-Q200 readiness for automotive-grade surge immunity.
Technical Context
This bidirectional TVS diode uses glass-passivated silicon junctions to achieve fast response time (<1.0 ns) and stable clamping under 8.3ms half-sine surge pulses. Its symmetrical I-V characteristics enable suppression of both positive and negative transients without polarity constraints.
The device delivers 1500W peak pulse power at 1.0ms pulse width while maintaining low leakage (<5.0 µA at 13.6V) and a temperature coefficient of ±0.086%/°C for VBR stability across operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500W at 1.0ms - sustains high-energy lightning-induced surges per IEC 61000-4-5 Level 4 |
| Reverse Standoff Voltage | 13.6V - maximum continuous working voltage before clamping initiates |
| Breakdown Voltage | 15.2V min @ 1mA - precise threshold where avalanche conduction begins |
| Clamping Voltage | 22.5V max @ 67A - limits downstream circuit voltage during worst-case surge |
| Peak Pulse Current | 67A @ 10/1000µs waveform - quantifies surge handling capacity under standard test condition |
| Operating Temperature | -55°C to +175°C - supports under-hood automotive and industrial environments |
| Leakage Current | ≤5.0 µA @ VRWM - ensures minimal standby power loss in always-on systems |
Pinout & Package
Package: DO-201 axial-leaded through-hole package with transfer-molded epoxy body (UL 94V-0), 1.12g mass, and tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during negative transients | One end of symmetrical junction; no cathode marking on bidirectional variant |
| Cathode | Current entry point during positive transients | Other end of symmetrical junction; identical physical terminal to anode |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die construction | Enables stable avalanche performance and long-term reliability under repeated surge stress |
| Bidirectional configuration | Protects AC-coupled or floating signal paths without polarity-sensitive placement |
| 1500W peak pulse rating | Meets IEC 61000-4-5 surge immunity requirements for industrial and automotive power inputs |
| RoHS-compliant & halogen-free | Fulfills environmental compliance mandates for global electronics manufacturing (Br+Cl <1500ppm) |
Applications
| Automotive Power Distribution | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: 12V battery rail protection against load dump and alternator transients in engine control units. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontrollers. Use Value: Clamps 12V system surges up to 100V within 22.5V, preserving downstream ICs rated for ≤36V absolute maximum. |
Use Scenario: 24V digital input module exposed to field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Front-end transient absorber before optocoupler or Schmitt-trigger input stage. Use Value: Limits transient energy before it reaches isolation barriers, preventing false triggering and latch-up in logic interfaces. |
| Telecom Line Interface | Medical Equipment Power Entry |
|
Use Scenario: Protection of RS-485 transceivers connected to outdoor cabling in security or building management systems. IC Role / Device Role / Timing Role: Bidirectional surge limiter on differential bus lines referenced to local ground. Use Value: Symmetric clamping preserves common-mode rejection while limiting differential overvoltage to safe levels for transceiver ESD structures. |
Use Scenario: Mains-powered diagnostic devices requiring IEC 60601-1 4th edition surge immunity on AC/DC adapter inputs. IC Role / Device Role / Timing Role: First-stage MOV complement for fast-response clamping ahead of bulk filtering. Use Value: Reduces let-through voltage to <25V during 1kV/0.5J surges, enabling use of lower-voltage-rated bridge rectifiers and capacitors. |
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 | 600W rating, SMB surface-mount package, 23.2V clamping at 26A | Lower surge capacity; suited for space-constrained PCBs with moderate threat levels | Select when board area is limited and peak surge energy does not exceed 600W |
| 1.5SMC16CA | 1500W rating, SMC package, 23.2V clamping at 65A, same VBR range | Surface-mount alternative with identical electrical specs but different thermal path and mounting method | Choose for automated assembly and improved thermal dissipation via PCB copper pour |
Compared with 1.5KE16CA-T, SMBJ16CA offers smaller footprint but reduced surge margin, while 1.5SMC16CA matches power rating and clamping performance in a surface-mount format-enabling trade-offs between manufacturability, layout density, and mechanical robustness.
Availability
1.5KE16CA-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 traceable sourcing.
Supply support for 1.5KE16CA-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 solutions, with design centers across Asia, Europe, and the US.
The 1.5KE series targets high-reliability transient suppression in harsh environments, emphasizing robust glass-passivated junctions, wide temperature operation, and automotive-grade qualification pathways.
FAQ
What is the difference between 1.5KE16CA-T and 1.5KE16A-T?
The "C" suffix indicates bidirectional construction, meaning 1.5KE16CA-T clamps both positive and negative transients symmetrically, whereas 1.5KE16A-T is unidirectional with a cathode band marking and only suppresses positive surges relative to its cathode. Their standoff, breakdown, and clamping voltages are identical, but circuit placement and polarity sensitivity differ.
Can 1.5KE16CA-T be used in place of a MOV for surge protection?
Yes, but with functional distinction: 1.5KE16CA-T responds faster (<1 ns vs. ~25 ns for MOVs) and has tighter voltage tolerance, making it ideal for precision clamping near sensitive ICs; however, it lacks the joule-energy absorption capacity of MOVs and should be paired with them in multi-stage protection schemes for high-energy threats like lightning.
Is 1.5KE16CA-T qualified to AEC-Q200?
No-while Diodes offers AEC-Q200-qualified TVS devices in other families (e.g., D3SBF series), the 1.5KE16CA-T is not officially AEC-Q200 certified. Its construction and testing align with industrial and commercial standards; automotive users must perform their own validation per system-level requirements.
What is the significance of the "-T" suffix in 1.5KE16CA-T?
The "-T" denotes tape-and-reel packaging: 1,000 pieces per 13-inch reel, optimized for automated pick-and-place assembly. This contrasts with "-B" (bulk packaging), and confirms the part is supplied in industry-standard SMT-compatible carrier format despite its axial-leaded DO-201 package.
1.5KE16CA-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):
- 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
1.5KE16CA-T FAQ
1.How can I place an order for 1.5KE16CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE16CA-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 1.5KE16CA-T reliable?
The price and inventory of 1.5KE16CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE16CA-T is usually 5 days.
3.What payment methods are accepted for 1.5KE16CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE16CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE16CA-T?
1.5KE16CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE16CA-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 1.5KE16CA-T?
For technical support, including 1.5KE16CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE16CA-T requirements.
6.How does Aetrix verify that 1.5KE16CA-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE16CA-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 1.5KE16CA-T meets industry standards.
7.What is the process for return or replacement of 1.5KE16CA-T?
All 1.5KE16CA-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE16CA-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 1.5KE16CA-T part is unused and in its original packaging.
Return procedure for 1.5KE16CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE16CA-T Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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