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Vishay General Semiconductor - Diodes Division 1.5KE22AHE3_B/C
- Part No.:
- 1.5KE22AHE3_B/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE22AHE3_B/C.pdf
- Description:
- 1.5KW,22V 5%,UNIDIR,AXIAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,704
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Product details
Overview
1.5KE22AHE3_B/C from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection of 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 A, and operates from –55 °C to +175 °C - deployed in automotive power supply inputs, industrial sensor interfaces, and telecom line protection.
For engineers reviewing the 1.5KE22AHE3_B/C datasheet, 1.5KE22AHE3_B/C pinout, 1.5KE22AHE3_B/C application, or 1.5KE22AHE3_B/C equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJL = 15.4 °C/W), JEDEC 1.5KE package dimensions, and real-world clamping behavior under transient surge conditions.
Technical Context
This unidirectional TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its clamping action begins at VBR = 20.9–23.1 V and limits peak transients to VC = 30.6 V at IPPM = 49 A, with a temperature coefficient of +0.092 %/°C ensuring stable breakdown across operating range.
Rated for 1500 W peak pulse power per 10/1000 µs waveform and 200 A non-repetitive forward surge current (8.3 ms half-sine), it supports robust protection in high-energy inductive switching environments while maintaining 6.5 W steady-state power dissipation on infinite heatsink at TL = 75 °C.
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 |
| VWM | 18.8 V - maximum continuous reverse working voltage before leakage exceeds 1 μA |
| VC @ IPPM | 30.6 V at 49 A - actual clamped voltage during full 1500 W transient event |
| PPPM | 1500 W - peak surge energy handling capacity for 10/1000 µs waveform |
| IFSM | 200 A - withstands single 8.3 ms half-sine surge without failure |
| TJ max. | +175 °C - enables operation in under-hood automotive and high-temperature industrial enclosures |
| RθJL | 15.4 °C/W - low junction-to-lead thermal resistance supports reliable power dissipation |
Pinout & Package
1.5KE22AHE3_B/C is housed in the standard axial-leaded JEDEC 1.5KE case (Case Style 1.5KE), molded epoxy body with matte tin-plated leads. The cathode is marked by a color band on the body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to protected circuit ground or low-side return path during surge |
| Cathode | Current exit point in forward bias; clamping node in reverse bias | Connected to protected line (e.g., 24 V rail); absorbs transient energy into ground |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance and long-term reliability under thermal cycling |
| AEC-Q101 qualified | Validated for automotive-grade stress testing including temperature cycling and HTRB |
| 1500 W peak pulse rating | Protects against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 surges |
| Fast response time | <1 ns clamping activation ensures IC-level protection before damage occurs |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance and UL 94 V-0 flammability |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 18.8 V. Use Value: Limits voltage to ≤30.6 V during 49 A transients, preventing damage to MCU power supplies and CAN transceivers. | Use Scenario: Safeguarding 4–20 mA analog sensor outputs in factory automation systems. IC Role / Device Role / Timing Role: TVS connected across signal and ground to suppress ESD and inductive kickback from solenoid drivers. Use Value: Clamps fast transients within nanoseconds, preserving ADC input integrity without affecting 20 kHz signal bandwidth. |
| Telecom DC Feeder Protection | Consumer Power Adapter Output Protection |
Use Scenario: Shielding PoE-powered devices from lightning-induced surges on DC feed lines. IC Role / Device Role / Timing Role: Primary TVS on 48 V DC input stage upstream of DC/DC converter. Use Value: Absorbs 1500 W surges per IEC 61000-4-5, enabling compliance with EN 61000-6-2 immunity requirements. | Use Scenario: Overvoltage safeguard on USB-C PD adapter 20 V output rails. IC Role / Device Role / Timing Role: Final-stage TVS after regulation, guarding downstream USB PD controllers and Type-C port ICs. Use Value: Prevents latch-up or gate oxide rupture in PMICs during output short-circuit recovery events. |
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 PPPM (600 W), smaller SMB package, same VBR range (20.9–23.1 V) | Better suited for space-constrained PCBs; lower surge margin for high-energy automotive load dump | Select when board area is critical and surge threat level is ≤600 W |
| 1.5KE22CA | Bidirectional variant; identical VBR, VC, and PPPM, but symmetric clamping in both polarities | Required for AC-coupled or floating signal lines where polarity reversal may occur | Choose only if bidirectional protection is mandated by circuit topology |
Compared with SMBJ22A and 1.5KE22CA, the 1.5KE22AHE3_B/C provides higher surge robustness in a through-hole package ideal for high-reliability power rail protection, while offering AEC-Q101 qualification not available in SMBJ22A and unidirectional optimization absent in the bidirectional 1.5KE22CA.
Availability
1.5KE22AHE3_B/C is available at Aetrix Electronics and suitable for automotive electronics, industrial control systems, and telecom infrastructure requiring stable component supply with AEC-Q101 qualification and high-energy transient immunity.
Supply support for 1.5KE22AHE3_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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability and automotive-grade validation.
The 1.5KE series was engineered for high-power transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where 1500 W surge capability and AEC-Q101 compliance are mandatory.
FAQ
What is the breakdown voltage tolerance of the 1.5KE22AHE3_B/C?
The 1.5KE22AHE3_B/C has a specified breakdown voltage range of 20.9 V to 23.1 V at test current IT = 1 mA, corresponding to ±5 % tolerance around the nominal 22 V rating. This tight VBR window ensures consistent clamping onset across production lots and supports predictable system-level overvoltage design margins in the 1.5KE22AHE3_B/C.
Is the 1.5KE22AHE3_B/C qualified for automotive use?
Yes, the 1.5KE22AHE3_B/C carries AEC-Q101 qualification per Vishay documentation (Document 88301, Note 2), covering stress tests including temperature cycling, high-temperature reverse bias, and humidity testing. This makes the 1.5KE22AHE3_B/C suitable for under-hood and chassis-mounted automotive modules where reliability under thermal and electrical stress is critical.
What is the clamping voltage of the 1.5KE22AHE3_B/C at its rated peak pulse current?
The 1.5KE22AHE3_B/C clamps to a maximum of 30.6 V at its rated peak pulse current of 49 A (IPPM), measured using the standard 10/1000 µs waveform. This VC value defines the upper voltage limit imposed on protected circuits during worst-case transients and is a key parameter used to verify safe operation of downstream ICs in the 1.5KE22AHE3_B/C design.
Does the 1.5KE22AHE3_B/C have a defined thermal resistance to lead?
Yes, the 1.5KE22AHE3_B/C has a typical junction-to-lead thermal resistance (RθJL) of 15.4 °C/W, as specified in Vishay's thermal characteristics table. This value enables accurate junction temperature estimation during sustained surge events and informs heatsinking decisions - especially important when deploying the 1.5KE22AHE3_B/C in high-ambient industrial or automotive environments.
How does the HE3 suffix affect the 1.5KE22AHE3_B/C construction and compliance?
The HE3 suffix on the 1.5KE22AHE3_B/C indicates RoHS compliance plus AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. It denotes matte tin-plated leads, UL 94 V-0 molding compound, and qualification for automotive-grade reliability - distinguishing it from commercial-grade E3 variants. This makes the 1.5KE22AHE3_B/C appropriate for mission-critical applications where long-term solder joint integrity and environmental compliance are required.
1.5KE22AHE3_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:
- 1
- Bidirectional Channels:
- -
- 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
1.5KE22AHE3_B/C FAQ
1.How can I place an order for 1.5KE22AHE3_B/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE22AHE3_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 1.5KE22AHE3_B/C reliable?
The price and inventory of 1.5KE22AHE3_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 1.5KE22AHE3_B/C is usually 5 days.
3.What payment methods are accepted for 1.5KE22AHE3_B/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE22AHE3_B/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE22AHE3_B/C?
1.5KE22AHE3_B/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE22AHE3_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 1.5KE22AHE3_B/C?
For technical support, including 1.5KE22AHE3_B/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE22AHE3_B/C requirements.
6.How does Aetrix verify that 1.5KE22AHE3_B/C is sourced from the original manufacturer or authorized distributors?
All 1.5KE22AHE3_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 1.5KE22AHE3_B/C meets industry standards.
7.What is the process for return or replacement of 1.5KE22AHE3_B/C?
All 1.5KE22AHE3_B/C units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE22AHE3_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 1.5KE22AHE3_B/C part is unused and in its original packaging.
Return procedure for 1.5KE22AHE3_B/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE22AHE3_B/C Tags
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