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Vishay General Semiconductor - Diodes Division 1.5KE22C-E3/54
- Part No.:
- 1.5KE22C-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE22C-E3/54.pdf
- Description:
- TVS DIODE 17.8VWM 31.9VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:6,493
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Product details
Overview
1.5KE22C-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for clamping voltage transients on signal and power lines. It features a 22 V breakdown voltage (VBR = 20.9–23.1 V at IT = 1.0 mA), 1500 W peak pulse power (10/1000 µs), 30.6 V maximum clamping voltage at 49.0 A, and operates across –55 °C to +175 °C junction temperature. It protects MOSFETs and ICs in automotive sensor interfaces against ESD and inductive switching surges.
For engineers reviewing the 1.5KE22C-E3/54 datasheet, 1.5KE22C-E3/54 pinout, 1.5KE22C-E3/54 application, or 1.5KE22C-E3/54 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, bidirectional clamping behavior, thermal derating curves, and direct alternatives for circuit protection design-in.
Technical Context
This device implements a glass-passivated silicon PN junction optimized for fast transient 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 under 10/1000 µs waveform with 0.01% duty cycle, and exhibits a temperature coefficient of VBR at +0.092 %/°C - critical for stable clamping across automotive temperature ranges. The 1.5KE case provides UL 94 V-0 rated epoxy encapsulation and matte tin-plated leads compliant with J-STD-002 solderability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 20.9 V / 23.1 V at 1.0 mA test current - defines precise clamping onset threshold for overvoltage detection |
| VC @ IPPM | 30.6 V at 49.0 A peak pulse - maximum voltage seen by protected circuit during worst-case surge |
| PPPM | 1500 W (10/1000 µs) - enables robust protection against lightning-induced surges and inductive kickback |
| VWM | 18.8 V - maximum continuous working voltage before leakage exceeds 1.0 µA, ensuring no false triggering |
| IDRM | <1.0 µA at VWM - ultra-low reverse leakage preserves signal integrity in high-impedance sensor lines |
| TJ range | –55 °C to +175 °C - supports under-hood automotive and industrial environments without derating loss |
| RθJL | 15.4 °C/W - enables effective heat transfer to PCB copper or heatsink for sustained surge handling |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), molded epoxy body with matte tin-plated axial leads; RoHS-compliant, commercial grade (E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Transient current sink (bidirectional) | Accepts surge current in either polarity; no cathode marking - symmetric terminal function |
| Cathode (Lead 2) | Transient current sink (bidirectional) | Identical role to Anode; device functions identically regardless of orientation in PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR and low leakage over 10+ years in humid or thermally cycled environments |
| 1500 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-line) without degradation |
| Sub-nanosecond response time | Clamps transients before sensitive logic or analog front-ends experience overstress (tR < 1 ns) |
| UL 94 V-0 flammability rating | Mold compound self-extinguishes under flame exposure - required for automotive and industrial safety compliance |
| JESD 201 Class 1A whisker resistance | E3 suffix ensures reliable solder joint integrity after long-term storage or high-temperature reflow |
Applications
| Automotive Sensor Interface | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before it reaches signal conditioning ICs. Use Value: Maintains 18.8 V working voltage margin below 22 V VBR, enabling clean operation during normal 12 V vehicle battery fluctuations while clamping 30.6 V max during 49 A transients. |
Use Scenario: Safeguarding 24 V DC digital input modules in factory automation against relay coil flyback and EFT bursts. IC Role / Device Role / Timing Role: Primary overvoltage clamp on field-side terminals, coordinated with series impedance to limit current into downstream optocouplers or microcontrollers. Use Value: 1500 W rating absorbs repetitive 10/1000 µs surges per IEC 61000-4-4 without parameter shift, supporting >100,000 surge cycles in harsh plant environments. |
| Telecom Line Card Protection | Consumer Power Adapter Input Stage |
|
Use Scenario: Secondary-level surge suppression on Ethernet PHY power rails and data lines exposed to induced lightning per ITU-T K.21. IC Role / Device Role / Timing Role: Fast-reacting TVS placed after primary MOV/GDT stage to handle residual fast-rising edges that bypass slower protectors. Use Value: Sub-1 ns response captures <100 ns rise-time transients missed by µs-range protectors, reducing stress on PHY ICs by limiting clamped voltage to 30.6 V. |
Use Scenario: Input-stage transient protection on AC-DC adapter primary side, guarding bridge rectifier and controller ICs against mains-borne surges. IC Role / Device Role / Timing Role: Unidirectional/bidirectional clamp across bulk capacitor or rectifier output, selected here as bidirectional to simplify layout in floating topologies. Use Value: 175 °C max junction temperature allows operation near hot transformer cores without thermal shutdown, while 15.4 °C/W RθJL enables direct lead-to-copper thermal path. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22CA | DO-214AA package (smaller footprint), 600 W PPPM, same VBR range (20.9–23.1 V), higher VC (35.5 V @ 17.1 A) | Better suited for space-constrained PCBs but lower surge capacity; requires higher series impedance to match 1.5KE22C-E3/54's clamping performance | Select SMBJ22CA only when board area is critical and surge threat level is ≤ Level 3 (IEC 61000-4-5) |
| 1.5SMC22CA | DO-214AB package, identical 1500 W rating and VC (30.6 V), but higher leakage (≤5.0 µA vs. ≤1.0 µA) and wider VBR tolerance (±5% vs. ±5% min/max spec) | Acceptable for non-safety-critical consumer applications; not recommended for automotive where low leakage is mandatory for sensor bias stability | Choose 1.5SMC22CA for cost-sensitive industrial designs where leakage <1 µA is not required |
Compared with SMBJ22CA and 1.5SMC22CA, the 1.5KE22C-E3/54 delivers superior thermal robustness (RθJL = 15.4 °C/W), lowest leakage (≤1.0 µA), and proven AEC-Q101 qualification path - making it the preferred choice for automotive and high-reliability industrial deployments requiring long-term parametric stability.
Availability
1.5KE22C-E3/54 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, telecom line card surge suppression, and consumer power adapter input-stage safeguarding requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE22C-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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments, emphasizing stable clamping, low leakage, and extended temperature operation - targeting design-in where failure is not an option.
FAQ
What is the exact breakdown voltage range for 1.5KE22C-E3/54?
The 1.5KE22C-E3/54 has a guaranteed breakdown voltage range of 20.9 V to 23.1 V at a test current of 1.0 mA, per Vishay Document Number 88301. This tight VBR window ensures predictable clamping onset across production lots and temperature extremes, critical for protecting 24 V systems where margin above nominal rail must be precisely controlled. The "22" in the part number denotes nominal VBR, not a fixed value.
Is 1.5KE22C-E3/54 unidirectional or bidirectional?
The "C" suffix in 1.5KE22C-E3/54 explicitly denotes a bidirectional configuration. Unlike unidirectional variants (e.g., 1.5KE22A), this device clamps symmetrically in both polarities with identical VBR, VC, and leakage characteristics - ideal for AC-coupled lines, differential buses, or floating grounds where polarity cannot be assumed. No cathode band marking is present.
What does the "E3/54" suffix mean in 1.5KE22C-E3/54?
"E3" indicates RoHS-compliant, commercial-grade construction with JESD 201 Class 1A whisker resistance; "/54" specifies the packaging format: 13-inch paper tape and reel containing 1400 units. This ordering code ensures traceable, automated assembly-ready delivery - distinct from HE3 (AEC-Q101 qualified) or bare-tray variants.
Can 1.5KE22C-E3/54 replace 1.5KE22A in an existing design?
No - 1.5KE22C-E3/54 is bidirectional while 1.5KE22A is unidirectional. Swapping them risks improper clamping on negative transients or forward conduction in DC-biased circuits. If bidirectional protection is needed, verify system grounding and confirm no DC bias exists across the device. Always validate with surge testing per IEC 61000-4-5.
What is the maximum clamping voltage of 1.5KE22C-E3/54 under surge conditions?
The maximum clamping voltage (VC) of 1.5KE22C-E3/54 is 30.6 V at its rated peak pulse current of 49.0 A (10/1000 µs waveform). This value represents the highest voltage imposed on the protected circuit during worst-case surge events - a key parameter for ensuring downstream ICs remain within absolute maximum ratings. VC rises linearly with current beyond this point per the incremental clamping curve.
1.5KE22C-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 17.8V
- Voltage - Breakdown (Min):
- 19.8V
- Voltage - Clamping (Max) @ Ipp:
- 31.9V
- Current - Peak Pulse (10/1000µs):
- 47A
- 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
1.5KE22C-E3/54 FAQ
1.How can I place an order for 1.5KE22C-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE22C-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 1.5KE22C-E3/54 reliable?
The price and inventory of 1.5KE22C-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 1.5KE22C-E3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE22C-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE22C-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE22C-E3/54?
1.5KE22C-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE22C-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 1.5KE22C-E3/54?
For technical support, including 1.5KE22C-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE22C-E3/54 requirements.
6.How does Aetrix verify that 1.5KE22C-E3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE22C-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 1.5KE22C-E3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE22C-E3/54?
All 1.5KE22C-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE22C-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 1.5KE22C-E3/54 part is unused and in its original packaging.
Return procedure for 1.5KE22C-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE22C-E3/54 Tags
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