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Diodes Incorporated 1.5KE220CA-T
- Part No.:
- 1.5KE220CA-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE220CA-T.pdf
- Description:
- TVS DIODE 185VWM 328VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:9,969
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Product details
Overview
1.5KE220CA-T from Diodes Incorporated is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, designed for high-energy surge protection in DC power rails and signal lines. It features a 185V reverse standoff voltage, 209–231V breakdown range at 1mA, 328V max clamping voltage at 4.6A peak pulse current, and operates from –55°C to +175°C.
For engineers reviewing the 1.5KE220CA-T datasheet, 1.5KE220CA-T pinout, 1.5KE220CA-T application, or 1.5KE220CA-T equivalent, key selection criteria include clamping voltage margin vs. protected circuit VMAX, peak pulse current handling under IEC 61000-4-5 waveforms, thermal derating above +25°C, and bidirectional symmetry for AC-coupled or floating-line protection.
Technical Context
This TVS diode uses an avalanche breakdown mechanism in a glass-passivated silicon junction to clamp transient overvoltages within nanoseconds. Its bidirectional configuration enables symmetrical clamping on both polarities without external polarity constraints.
It is rated for 1500W non-repetitive peak pulse power (tP = 1.0 ms), with 5.0W steady-state dissipation at TL = 75°C and 200A forward surge capability. The device exhibits a voltage temperature coefficient of +0.108%/°C for VBR, ensuring predictable drift across its operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W - Clamps 1.0 ms 8/20 µs surges up to this energy level without failure |
| Reverse Standoff Voltage (VRWM) | 185 V - Maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 209–231 V @ 1 mA - Confirmed avalanche onset range; defines minimum clamping threshold |
| Max Clamping Voltage (VC) | 328 V @ 4.6 A - Upper voltage limit seen by protected circuit during specified surge |
| Peak Pulse Current (IPP) | 4.6 A - Peak current supported at VC; correlates to IEC 61000-4-5 Level 4 immunity |
| Operating Temperature | –55°C to +175°C - Enables use in under-hood automotive, industrial power supplies, and outdoor equipment |
| Leakage Current (IR) | 5.0 µA @ 185 V - Low standby loss critical for battery-backed or low-power systems |
Pinout & Package
Package: DO-201 axial-leaded package with transfer-molded epoxy body (UL 94V-0), 1.12 g mass, and tin-plated leads solderable per MIL-STD-202 Method 208.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; common reference for bidirectional clamping | Connected to line being protected; no polarity marking required for bidirectional operation |
| Cathode | Current exit terminal in forward bias; forms symmetrical junction with anode | Connected to line being protected; identical electrical role to anode due to bidirectional construction |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated die | Enhances long-term reliability and moisture resistance versus epoxy-only passivation |
| Bidirectional architecture | Enables single-device protection of AC signals or floating DC buses without polarity concerns |
| Fast response time | Sub-nanosecond junction response ensures clamping before sensitive ICs experience overstress |
| RoHS-compliant & Halogen-free | Meets EU Directive 2015/863/EU with Br+Cl <1500 ppm and Sb <1000 ppm |
| Axial lead form factor | Supports through-hole mounting in high-vibration environments and manual rework compatibility |
Applications
| Industrial Power Input Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: 24V DC input stage of programmable logic controllers exposed to load dump and inductive switching transients. IC Role / Device Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontrollers. Use Value: Limits transient excursions to ≤328V, preserving downstream 36V-rated input capacitors and LDOs. |
Use Scenario: CAN bus and LIN bus lines in BCM modules subjected to ISO 7637-2 pulses and ESD events. IC Role / Device Role: Bidirectional line protector on differential data pairs with no polarity dependency. Use Value: Maintains signal integrity by clamping ±328V spikes while adding <1 pF parasitic capacitance. |
| AC-DC Adapter Secondary Side | Telecom Line Interface Card |
|
Use Scenario: Output rectifier rail of offline flyback adapters powering IoT gateways. IC Role / Device Role: Secondary-side surge absorber between transformer output and bulk capacitor. Use Value: Absorbs 1500W surges without degradation, enabling compliance with UL 62368-1 transient requirements. |
Use Scenario: Tip/ring protection on POTS line cards handling lightning-induced surges. IC Role / Device Role: Primary protection element before hybrid transformers and SLICs. Use Value: Withstands 4.6A 10/1000 µs surges per ITU-T K.20/K.21, reducing need for secondary gas discharge tubes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ220CA | 600W rating, DO-214AA package, 356V clamping at 3.2A | Lower power handling; suited for space-constrained PCBs where 1500W is not required | Select when board area is constrained and peak surge energy is ≤600W |
| 1.5SMC220CA | 1500W rating, DO-214AB package, 328V clamping at 4.6A, same electrical specs but surface-mount | Replaces axial DO-201 with SMC footprint; requires re-layout but enables automated assembly | Select when transitioning from through-hole to SMT manufacturing or needing higher vibration tolerance |
Compared with 1.5KE220CA-T, SMBJ220CA offers smaller size but reduced surge capacity, while 1.5SMC220CA delivers identical protection performance in a surface-mount package-enabling design flexibility between manual assembly and high-volume SMT production.
Availability
1.5KE220CA-T is available at Aetrix Electronics and suitable for industrial power input protection, automotive body control modules, and telecom line interface cards requiring stable component supply and long-lifecycle support.
Supply support for 1.5KE220CA-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 devices, with operations certified to IATF 16949 and ISO 9001 standards.
This device belongs to the 1.5KE series of high-power unidirectional/bidirectional TVS diodes, engineered for robust transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
Is 1.5KE220CA-T still in active production?
No-1.5KE220CA-T is marked obsolete in Diodes' official documentation (DS21503 Rev. 12, May 2023). Aetrix Electronics maintains limited legacy stock for design continuity and last-time buy support, with full traceability and date-code verification.
What is the meaning of the "CA" suffix in 1.5KE220CA-T?
The "CA" suffix denotes a bidirectional TVS configuration: two opposing avalanche junctions integrated into one DO-201 package, enabling symmetrical clamping for AC signals or floating DC lines without polarity orientation constraints.
How does 1.5KE220CA-T compare to MOV-based protection?
Unlike metal-oxide varistors, this TVS diode offers faster response (<1 ns vs. 20–50 ns), tighter voltage tolerance (±5% VBR vs. ±10–20%), and no degradation after repeated sub-threshold surges-making it preferred for precision-clamping applications near sensitive ICs.
Can 1.5KE220CA-T be used in parallel for higher current handling?
No-parallel connection is not recommended due to mismatched VBR tolerances causing current imbalance. For higher surge ratings, select a single higher-power device such as 3KP220CA (3000W) or verify matched-bin pairing with Diodes' application engineering team.
1.5KE220CA-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):
- 185V
- Voltage - Breakdown (Min):
- 209V
- Voltage - Clamping (Max) @ Ipp:
- 328V
- Current - Peak Pulse (10/1000µs):
- 4.6A
- 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
1.5KE220CA-T FAQ
1.How can I place an order for 1.5KE220CA-T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE220CA-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 1.5KE220CA-T reliable?
The price and inventory of 1.5KE220CA-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE220CA-T is usually 5 days.
3.What payment methods are accepted for 1.5KE220CA-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE220CA-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE220CA-T?
1.5KE220CA-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE220CA-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 1.5KE220CA-T?
For technical support, including 1.5KE220CA-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE220CA-T requirements.
6.How does Aetrix verify that 1.5KE220CA-T is sourced from the original manufacturer or authorized distributors?
All 1.5KE220CA-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 1.5KE220CA-T meets industry standards.
7.What is the process for return or replacement of 1.5KE220CA-T?
All 1.5KE220CA-T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE220CA-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 1.5KE220CA-T part is unused and in its original packaging.
Return procedure for 1.5KE220CA-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE220CA-T Tags
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ESD9B5.0ST5G
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Diodes Incorporated
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Diodes Incorporated
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