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Vishay General Semiconductor - Diodes Division 1.5KE22CHE3/54
- Part No.:
- 1.5KE22CHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE22CHE3/54.pdf
- Description:
- TVS DIODE 17.8VWM 31.9VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:2,697
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Product details
Overview
1.5KE22CHE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails 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 49.0 A, and operates from –55 °C to +175 °C - used in automotive power supply input stages and industrial sensor interface protection.
For engineers reviewing the 1.5KE22CHE3/54 datasheet, 1.5KE22CHE3/54 pinout, 1.5KE22CHE3/54 application, or 1.5KE22CHE3/54 equivalent, this page delivers verified electrical parameters, JEDEC-standard 1.5KE package details, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), and real-world clamping behavior under lightning-surge transients per IEC 61000-4-5.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its unidirectional polarity enables cathode-grounded placement on positive-rail protection paths, with a 18.8 V stand-off voltage (VWM) ensuring no conduction during normal operation.
It complies with JEDEC DO-201AD mechanical standards and supports 200 A non-repetitive forward surge current (IFSM) at 8.3 ms half-sine. The device is RoHS-compliant (E3 suffix) and AEC-Q101 qualified (HE3 revision), validated for automotive-grade reliability under temperature cycling and high-humidity bias stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 20.9 V / 23.1 V at 1 mA - defines precise clamping onset threshold for overvoltage detection |
| VWM | 18.8 V - maximum continuous working voltage before leakage exceeds 1 μA |
| VC @ IPPM | 30.6 V at 49.0 A - actual clamped voltage during 1500 W transient, limiting downstream IC stress |
| PPPM | 1500 W (10/1000 µs waveform) - peak surge energy handling capacity for lightning/surge immunity |
| IFSM | 200 A (8.3 ms half-sine) - withstands high-current inductive kick without failure |
| TJ max. | +175 °C - enables operation in under-hood automotive environments and high-power industrial enclosures |
| RθJA | 75 °C/W - thermal resistance informs heatsink requirements for sustained power dissipation |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), molded epoxy body with matte tin-plated leads; compliant with UL 94 V-0, J-STD-002 solderability, and JESD 201 Class 1A whisker testing (E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; completes clamping loop during reverse transient |
| Cathode | High-side connection point | Connected to protected line (e.g., +12 V rail); color band denotes cathode end per polarity marking |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5 %) and long-term reliability under thermal cycling |
| 1500 W peak pulse power | Meets IEC 61000-4-5 Level 4 (4 kV) surge immunity without external circuit derating |
| AEC-Q101 qualified (HE3 revision) | Validated for automotive powertrain and body electronics per stress test requirements |
| Fast response time <1 ns | Clamps transients before sensitive logic or analog circuits experience overvoltage damage |
| Low incremental surge resistance | Minimizes voltage overshoot during high-di/dt events such as relay coil de-energization |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator surge transients up to 120 V. IC Role / Device Role / Timing Role: Primary clamping element placed between battery rail and upstream fuse, conducting only during overvoltage events. Use Value: Limits voltage seen by downstream DC-DC converters and microcontrollers to ≤30.6 V, preventing latch-up or gate oxide rupture. | Use Scenario: Shielding 4–20 mA current-loop sensors in factory automation from ESD and cable-induced surges. IC Role / Device Role / Timing Role: Unidirectional shunt device across sensor output terminals, referenced to system ground. Use Value: Clamps transients within 1 ns while maintaining <1 μA leakage at 18.8 V, preserving loop accuracy and calibration stability. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
Use Scenario: Safeguarding PoE-powered equipment inputs against induced surges on outdoor Ethernet cabling. IC Role / Device Role / Timing Role: Standoff-rated TVS on PSE-side DC feed line, operating in parallel with primary DC-DC stage. Use Value: Withstands 1500 W pulses without degradation, enabling compliance with GR-1089-CORE telecom surge immunity requirements. | Use Scenario: Suppressing back-EMF spikes from brushed DC motors in home appliances (e.g., washing machine control boards). IC Role / Device Role / Timing Role: Cathode-connected to motor supply rail, anode to ground - activated only during inductive turn-off. Use Value: Absorbs 200 A surge currents (8.3 ms) without failure, eliminating need for snubber RC networks and reducing BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A | Lower peak power (600 W), smaller SMB package (DO-214AA), same VBR range (20.9–23.1 V) | Better suited for space-constrained PCBs; lower IPPM (32.4 A) limits use in high-energy surge environments | Select when board area is critical and surge threat level is ≤IEC 61000-4-5 Level 3 (2 kV) |
| 1.5KE22A | Same 1.5KE package and electrical specs, but commercial-grade (non-AEC-Q101) and E3-only (no HE3 qualification) | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated | Choose for cost-sensitive non-automotive applications requiring identical form, fit, and function without automotive validation |
Compared with 1.5KE22CHE3/54, SMBJ22A trades peak power and ruggedness for compactness, while 1.5KE22A retains full electrical compatibility but omits AEC-Q101 validation - making the HE3/54 variant essential for automotive Tier-1 production and mission-critical industrial deployments.
Availability
1.5KE22CHE3/54 is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interfaces, telecom DC feeds, and appliance motor drive inputs requiring stable component supply across extended temperature ranges and high-reliability surge environments.
Supply support for 1.5KE22CHE3/54 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, efficiency, and application-specific performance.
The 1.5KE series was engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where robustness against lightning, ESD, and inductive switching surges is mandatory.
FAQ
What is the clamping voltage of the 1.5KE22CHE3/54 under a 1500 W surge?
The 1.5KE22CHE3/54 clamps to 30.6 V at its rated peak pulse current of 49.0 A (10/1000 µs waveform). This value is measured per JEDEC standard test conditions and reflects the maximum voltage imposed on protected circuitry during worst-case transient events - critical for validating safe operating margins of downstream ICs and regulators.
Is the 1.5KE22CHE3/54 AEC-Q101 qualified?
Yes, the 1.5KE22CHE3/54 carries the HE3 suffix, indicating it is RoHS-compliant and AEC-Q101 qualified per revision B. This qualification covers temperature cycling, humidity bias HAST, and mechanical shock testing - confirming suitability for automotive powertrain and chassis applications where long-term reliability under thermal and environmental stress is required.
What does the "/54" in 1.5KE22CHE3/54 signify?
The "/54" denotes the preferred packaging code: 13-inch diameter paper tape and reel containing 1400 units. This format is optimized for automated SMT placement and ensures consistent feeding in high-volume manufacturing lines - distinct from bulk or ammo-pack alternatives that lack tape-and-reel compatibility.
Can the 1.5KE22CHE3/54 be used in bidirectional configurations?
No, the 1.5KE22CHE3/54 is a unidirectional TVS diode. Bidirectional variants require the "CA" suffix (e.g., 1.5KE22CA). Using this part in a bidirectional application would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit - always match polarity suffix to system grounding architecture.
What is the maximum operating temperature for the 1.5KE22CHE3/54?
The 1.5KE22CHE3/54 has a maximum junction temperature (TJ) of +175 °C and operates across –55 °C to +175 °C. This wide range supports deployment in under-hood automotive modules, industrial motor drives, and outdoor telecom equipment - provided PCB layout maintains adequate thermal relief per RθJA = 75 °C/W.
1.5KE22CHE3/54 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE22CHE3/54 FAQ
1.How can I place an order for 1.5KE22CHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE22CHE3/54 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 1.5KE22CHE3/54 reliable?
The price and inventory of 1.5KE22CHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE22CHE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE22CHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE22CHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE22CHE3/54?
1.5KE22CHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE22CHE3/54 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 1.5KE22CHE3/54?
For technical support, including 1.5KE22CHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE22CHE3/54 requirements.
6.How does Aetrix verify that 1.5KE22CHE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE22CHE3/54 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 1.5KE22CHE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE22CHE3/54?
All 1.5KE22CHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE22CHE3/54, 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 1.5KE22CHE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE22CHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE22CHE3/54 Tags
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