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Vishay General Semiconductor - Diodes Division 1.5KE22CAHE3_B/C
- Part No.:
- 1.5KE22CAHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE22CAHE3_B/C.pdf
- Description:
- 1.5KW,22V 5%,BIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,234
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Product details
Overview
1.5KE22CAHE3_B/C from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode designed for high-energy surge 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, and operates across –55 °C to +175 °C. It is used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the 1.5KE22CAHE3_B/C datasheet, 1.5KE22CAHE3_B/C pinout, 1.5KE22CAHE3_B/C application, or 1.5KE22CAHE3_B/C equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, RoHS-compliant packaging, thermal resistance data (RθJL = 15.4 °C/W), and real-world clamping behavior under transient stress.
Technical Context
This bidirectional TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its symmetrical I-V characteristic enables clamping in both polarities without polarity marking, supporting AC-coupled or floating-line protection schemes.
Rated for 1500 W peak pulse power with 0.01% duty cycle, it sustains repetitive surges when thermally managed via lead termination (RθJL = 15.4 °C/W). The device meets JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability requirements in its molded epoxy case.
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 bidirectional overvoltage events |
| VC @ IPPM | 30.6 V at 49 A - maximum voltage seen by protected circuit during full 1500 W transient |
| PPPM | 1500 W (10/1000 µs) - energy-handling capacity sufficient for IEC 61000-4-5 Level 4 surges |
| VWM | 18.8 V - maximum continuous working voltage before leakage exceeds 1 µA |
| RθJL | 15.4 °C/W - enables direct PCB trace thermal path design without heatsink for moderate duty cycles |
| TJ range | –55 °C to +175 °C - supports under-hood automotive and industrial ambient environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: Case Style 1.5KE - axial-leaded, molded epoxy body (UL 94 V-0), 0.375" (9.5 mm) lead length, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (bidirectional) | Surge current path terminal | No polarity marking; symmetric conduction allows installation in either orientation on AC or floating lines |
| Lead 1 / Lead 2 | Thermal and electrical interface | Both leads serve as equal-current paths and primary heat dissipation routes to PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5%) and long-term leakage stability under humidity and thermal stress |
| 1500 W peak pulse rating | Supports single-event lightning-induced transients per IEC 61000-4-5 up to 4 kV open-circuit voltage |
| Sub-nanosecond response | Clamps within <1 ns - faster than MOVs or GDTs, preserving integrity of downstream CMOS inputs |
| AEC-Q101 qualified | Validated for automotive powertrain and body electronics per stress test requirements including HTGB and TCT |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling, critical for long-life automotive modules |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 12 V battery rail in engine control units exposed to load dump and alternator transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across input terminals of DC-DC converters and LDOs. Use Value: Limits transient excursions to ≤30.6 V, preventing gate oxide rupture in downstream PMICs rated for 36 V absolute max. |
Use Scenario: 4–20 mA current loop interface in factory automation sensors subject to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance shunt protector on analog input pins of signal conditioners and ADC front-ends. Use Value: Clamps 8/20 µs surges to <31 V while adding <0.5 pF parasitic capacitance - no signal integrity degradation at 100 kHz bandwidth. |
| Telecom Line Interface Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Ethernet PHY port protection in PoE-powered network switches where DC bias and data signals coexist. IC Role / Device Role / Timing Role: Bidirectional TVS placed between differential pairs and chassis ground to suppress common-mode surges. Use Value: Withstands repeated 10/1000 µs surges up to 1500 W without parameter shift - maintains Ethernet compliance after >1000 surge events. |
Use Scenario: Brushed DC motor driver board in home appliances experiencing inductive kickback during PWM commutation. IC Role / Device Role / Timing Role: Across-motor terminals to absorb flyback energy and prevent MOSFET avalanche failure. Use Value: Dissipates 1500 W peak energy in <1 ms, enabling use of lower-voltage-rated 40 V MOSFETs instead of 60 V parts - reducing conduction loss by 35%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22CA | Lower PPPM (600 W), smaller SMB package (RθJA = 110 °C/W vs. 75 °C/W), same VBR range | Not AEC-Q101 qualified; limited to consumer-grade PCB space-constrained designs | Select when board area is constrained and surge energy rarely exceeds 600 W. |
| 1.5KE22CAHE3_A | Same electrical specs and AEC-Q101 qualification; differs only in revision code ("A" vs. "B/C") per JEDEC standard | Identical functional performance; "B/C" denotes later manufacturing lot with updated whisker test compliance (JESD 201 Class 2) | Prefer 1.5KE22CAHE3_B/C for new designs requiring latest reliability validation. |
Compared with SMBJ22CA, 1.5KE22CAHE3_B/C delivers 2.5× higher surge energy handling and automotive qualification; versus 1.5KE22CAHE3_A, it provides enhanced tin whisker mitigation for extended field life in thermally cycled environments.
Availability
1.5KE22CAHE3_B/C is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, telecom infrastructure equipment, and appliance motor controllers requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE22CAHE3_B/C 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 demanding industrial and automotive applications.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments, emphasizing robustness, repeatable clamping, and long-term parametric stability under thermal and electrical stress.
FAQ
What is the clamping voltage of the 1.5KE22CAHE3_B/C under maximum surge conditions?
The 1.5KE22CAHE3_B/C clamps to 30.6 V at its peak pulse current of 49 A (10/1000 µs waveform). This value is measured per JEDEC standards and represents the maximum voltage imposed on protected circuitry during a full 1500 W transient event. Designers must ensure downstream components have a minimum 33 V absolute maximum rating to maintain margin.
Is the 1.5KE22CAHE3_B/C suitable for automotive applications?
Yes, the 1.5KE22CAHE3_B/C is AEC-Q101 qualified and manufactured with JESD 201 Class 2 whisker resistance, making it suitable for automotive powertrain, body control, and ADAS modules. Its –55 °C to +175 °C operating range and validated reliability under temperature cycling and high-temperature reverse bias meet OEM requirements.
How does the bidirectional nature of the 1.5KE22CAHE3_B/C affect PCB layout?
The 1.5KE22CAHE3_B/C has no polarity marking and conducts identically in both directions, allowing placement without orientation constraints on AC-coupled lines or floating buses. This simplifies layout, eliminates risk of reverse installation, and supports symmetric protection on differential pairs or transformer-isolated interfaces.
What is the thermal resistance from junction to lead (RθJL) for the 1.5KE22CAHE3_B/C?
The 1.5KE22CAHE3_B/C has a typical junction-to-lead thermal resistance of 15.4 °C/W, measured with 0.375" (9.5 mm) lead length. This value enables effective heat transfer directly into PCB copper pours or chassis connections, supporting repetitive surge operation without external heatsinking when trace width and copper thickness are appropriately sized.
Does the 1.5KE22CAHE3_B/C meet RoHS and REACH compliance?
Yes, the 1.5KE22CAHE3_B/C carries the "E3" suffix indicating full RoHS compliance (per Directive 2011/65/EU) and meets REACH SVHC requirements. Its molded epoxy body is UL 94 V-0 rated, and matte tin plating satisfies J-STD-002 solderability and JESD 22-B102 intermetallic growth specifications.
1.5KE22CAHE3_B/C 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):
- 51A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 1.5KE
1.5KE22CAHE3_B/C FAQ
1.How can I place an order for 1.5KE22CAHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE22CAHE3_B/C 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 1.5KE22CAHE3_B/C reliable?
The price and inventory of 1.5KE22CAHE3_B/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE22CAHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1.5KE22CAHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE22CAHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE22CAHE3_B/C?
1.5KE22CAHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE22CAHE3_B/C 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 1.5KE22CAHE3_B/C?
For technical support, including 1.5KE22CAHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE22CAHE3_B/C requirements.
6.How does Aetrix verify that 1.5KE22CAHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE22CAHE3_B/C 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 1.5KE22CAHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1.5KE22CAHE3_B/C?
All 1.5KE22CAHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE22CAHE3_B/C, 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 1.5KE22CAHE3_B/C part is unused and in its original packaging.
Return procedure for 1.5KE22CAHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE22CAHE3_B/C Tags
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