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Vishay General Semiconductor - Diodes Division 1.5KE22CA-E3/54
- Part No.:
- 1.5KE22CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE22CA-E3/54.pdf
- Description:
- TVS DIODE 18.8VWM 30.6VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:12,304
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Product details
Overview
1.5KE22CA-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 22 V breakdown voltage (VBR = 20.9–23.1 V at 1 mA), 1500 W peak pulse power (10/1000 µs), clamping voltage of 30.6 V at 49 A, 18.8 V stand-off voltage (VWM), and operates across –55 °C to +175 °C junction temperature. It is used to protect MOSFETs, ICs, and sensor interfaces against lightning-induced transients and inductive switching surges.
For engineers reviewing the 1.5KE22CA-E3/54 datasheet, 1.5KE22CA-E3/54 pinout, 1.5KE22CA-E3/54 application, or 1.5KE22CA-E3/54 equivalent, this device delivers verified bidirectional clamping performance, RoHS-compliant matte tin-plated leads, JEDEC-standard 1.5KE package, and UL 94 V-0 molded epoxy construction - critical for automotive, industrial, and telecom surge protection design validation.
Technical Context
This TVS diode employs a glass passivated silicon junction optimized for sub-nanosecond response (<1 ns) and low incremental surge resistance. Its bidirectional architecture enables symmetrical clamping in AC-coupled or floating signal paths without polarity constraints.
It sustains 1500 W peak pulse power per 10/1000 µs waveform at 0.01% duty cycle, with thermal resistance of 15.4 °C/W (junction-to-lead) and 75 °C/W (junction-to-ambient), enabling reliable operation under repetitive transient stress when mounted on PCB copper pours or short leads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 20.9 V / 23.1 V at 1 mA - defines precise voltage threshold where clamping initiates reliably |
| VWM | 18.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 30.6 V at 49 A - clamped voltage during full 1500 W transient, limiting downstream stress |
| PPPM | 1500 W - peak pulse power handling capability with standard 10/1000 µs surge waveform |
| IPPM | 49 A - maximum non-repetitive peak pulse current supported under rated conditions |
| TJ range | –55 °C to +175 °C - wide junction temperature range supports under-hood automotive and industrial environments |
| Package | DO-201AD (Case Style 1.5KE) - axial-leaded, UL 94 V-0 compliant epoxy body, 0.375" lead length standard |
Pinout & Package
1.5KE22CA-E3/54 uses the DO-201AD (Case Style 1.5KE) axial-leaded package with no polarity marking - consistent with bidirectional function. Leads are matte tin plated, solderable per J-STD-002 and JESD 22-B102, rated for 275 °C dip soldering (10 s max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional terminal pair | No cathode band; either lead serves as input/output - enables placement in AC or floating nodes without orientation check |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5%) and long-term reliability under humidity and thermal cycling |
| 1500 W peak pulse rating | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly laid out with low-inductance traces |
| Sub-nanosecond response time | Clamps transients within <1 ns - faster than MOVs or polymer-based protectors, preserving signal integrity |
| UL 94 V-0 epoxy molding | Self-extinguishing housing meets fire-safety requirements for enclosed industrial and automotive enclosures |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker resistance - qualified for high-reliability commercial applications |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protects gate drivers and microcontroller I/O from inductive kickback during relay or solenoid switching in PLC cabinets. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across DC bus or signal line to limit transient excursions below 31 V. Use Value: Prevents latch-up or oxide breakdown in 3.3 V/5 V logic interfaces by holding clamp voltage at 30.6 V under 49 A surge. |
Use Scenario: Shields LIN bus transceivers and sensor inputs (e.g., ambient temperature, door position) from load dump and jump-start surges. IC Role / Device Role / Timing Role: Standoff-rated protector (VWM = 18.8 V) installed at connector entry point to absorb coupled transients before they reach ASICs. Use Value: Maintains system uptime by surviving >100,000 surge events per AEC-Q101 qualification (for HE3 variants); E3 version provides equivalent robustness for commercial-tier designs. |
| Telecom Power Feeds | Consumer Appliance Control Boards |
|
Use Scenario: Safeguards PoE-powered Ethernet switch ports and DSL line cards against lightning-induced common-mode surges on twisted-pair lines. IC Role / Device Role / Timing Role: Paired bidirectionally across differential pairs or referenced to chassis ground to suppress mode conversion. Use Value: Delivers 1500 W pulse handling without derating at 75 °C ambient - validated via Fig. 2 derating curve in Vishay Doc. 88301. |
Use Scenario: Guards microcontroller reset lines and display interface signals in washing machines and HVAC controllers exposed to ESD and relay noise. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF at 0 V) TVS placed directly at IC pins to minimize stub inductance. Use Value: Clamps 8/20 µs EFT bursts to <31 V while adding negligible loading to 1–10 MHz control signals due to minimal junction capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22CA | DO-214AA package (SMB), 600 W PPPM, same VBR range (20.9–23.1 V), lower IPPM (32.4 A) | Surface-mount footprint; suited for space-constrained PCBs but requires thermal relief pads for equivalent power dissipation | Select SMBJ22CA when board area is limited and peak surge energy is ≤600 W; verify layout thermal performance per Fig. 5 derating curve. |
| 1.5SMC22CA | DO-214AB (SMC) package, 1500 W PPPM, identical VBR/VC specs, higher thermal resistance (RθJA = 110 °C/W vs. 75 °C/W) | Same power rating but reduced thermal efficiency; requires larger copper area or forced air for sustained surge duty | Choose 1.5SMC22CA only if SMC footprint is mandated and ambient temperature remains ≤50 °C; otherwise prefer 1.5KE22CA-E3/54 for superior thermal conduction. |
Compared with SMBJ22CA and 1.5SMC22CA, the 1.5KE22CA-E3/54 offers superior junction-to-lead thermal resistance (15.4 °C/W), enabling higher surge repetition rates in thermally constrained environments - a decisive advantage in industrial motor drive and automotive under-hood applications.
Availability
1.5KE22CA-E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, and telecom power feed applications requiring stable component supply, long-lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for 1.5KE22CA-E3/54 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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments - targeting applications where failure modes include lightning strikes, inductive switching, and load dump, with focus on manufacturability and JEDEC-standard packaging.
FAQ
What is the breakdown voltage tolerance for 1.5KE22CA-E3/54?
The 1.5KE22CA-E3/54 has a guaranteed breakdown voltage range of 20.9 V to 23.1 V at 1 mA test current, corresponding to ±5% tolerance around the nominal 22 V rating. This tight VBR window ensures predictable clamping onset and compatibility with 24 V system designs where margin above VWM = 18.8 V is critical. The specification is validated per JEDEC standards and appears in Table 1 of Vishay Document 88301.
Is 1.5KE22CA-E3/54 suitable for automotive applications?
Yes - the 1.5KE22CA-E3/54 meets commercial-grade requirements and is compatible with automotive use cases such as body control modules and sensor protection. While the E3 suffix denotes RoHS compliance and JESD 201 Class 1A whisker resistance, AEC-Q101 qualification applies to the HE3 variant (e.g., 1.5KE22CAHE3_B). For non-safety-critical automotive functions, 1.5KE22CA-E3/54 delivers proven surge robustness and thermal stability up to +175 °C junction temperature.
How does the clamping voltage of 1.5KE22CA-E3/54 compare to its breakdown voltage?
The 1.5KE22CA-E3/54 clamps at 30.6 V when subjected to its maximum rated peak pulse current of 49 A (10/1000 µs waveform), which is approximately 33% above its minimum breakdown voltage of 20.9 V. This VC–VBR margin ensures safe headroom for downstream 3.3 V or 5 V ICs while maintaining low let-through energy - a key advantage over Zener-based alternatives with higher dynamic impedance.
What is the lead finish and soldering specification for 1.5KE22CA-E3/54?
The 1.5KE22CA-E3/54 features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 for solderability. It supports wave and dip soldering at 275 °C maximum for 10 seconds, per JESD 22-B106. The E3 suffix confirms JESD 201 Class 1A whisker resistance, making it suitable for high-reliability commercial assemblies where intermetallic growth must be minimized over time.
Can 1.5KE22CA-E3/54 be used in bidirectional AC signal lines?
Yes - the "CA" suffix explicitly denotes bidirectional functionality, meaning 1.5KE22CA-E3/54 provides symmetrical clamping in both polarities with identical VBR, VWM, and VC characteristics. It is routinely deployed across AC-coupled communication lines (e.g., RS-485, CAN physical layer), transformer secondaries, and floating sensor bridges where polarity-independent protection is required without additional circuitry.
1.5KE22CA-E3/54 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 18.8V
- Voltage - Breakdown (Min):
- 20.9V
- Voltage - Clamping (Max) @ Ipp:
- 30.6V
- Current - Peak Pulse (10/1000µs):
- 49A
- 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
1.5KE22CA-E3/54 FAQ
1.How can I place an order for 1.5KE22CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE22CA-E3/54 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 1.5KE22CA-E3/54 reliable?
The price and inventory of 1.5KE22CA-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE22CA-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE22CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE22CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE22CA-E3/54?
1.5KE22CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE22CA-E3/54 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 1.5KE22CA-E3/54?
For technical support, including 1.5KE22CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE22CA-E3/54 requirements.
6.How does Aetrix verify that 1.5KE22CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE22CA-E3/54 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 1.5KE22CA-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE22CA-E3/54?
All 1.5KE22CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE22CA-E3/54, 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 1.5KE22CA-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE22CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE22CA-E3/54 Tags
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