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Vishay General Semiconductor - Diodes Division 1.5KE22HE3/54
- Part No.:
- 1.5KE22HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE22HE3/54.pdf
- Description:
- TVS DIODE 17.8VWM 31.9VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:8,008
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Product details
Overview
1.5KE22HE3/54 from Vishay General Semiconductor is a unidirectional 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, and operates across –55 °C to +175 °C junction temperature. It is used to protect MOSFETs, ICs, and sensor interfaces against inductive switching transients and ESD in industrial and automotive power supplies.
For engineers reviewing the 1.5KE22HE3/54 datasheet, 1.5KE22HE3/54 pinout, 1.5KE22HE3/54 application, or 1.5KE22HE3/54 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 surge conditions - all critical for surge immunity validation and PCB-level transient protection design.
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 20.9 V (min VBR) and limits transient voltage to ≤30.6 V at 49 A peak pulse current (IPPM), ensuring safe operation of downstream 24 V-rated components.
Rated for 1500 W peak pulse power with 0.01% duty cycle (10/1000 µs waveform), it sustains 200 A non-repetitive forward surge (IFSM) and exhibits 18.8 V stand-off voltage (VWM) with ≤1.0 µA reverse leakage - enabling reliable DC blocking while maintaining low standby power loss.
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; ensures compatibility with 24 V systems requiring margin above nominal rail. |
| VWM | 18.8 V - maximum continuous reverse working voltage; guarantees no conduction during normal 24 V operation with safety margin. |
| VC @ IPPM | 30.6 V at 49 A - clamped voltage during worst-case 1500 W transient; keeps protected ICs below absolute maximum ratings. |
| PPPM | 1500 W (10/1000 µs) - surge energy handling capacity; sufficient for IEC 61000-4-5 Level 4 (4 kV) line-to-line surges in industrial equipment. |
| IFSM | 200 A (8.3 ms half-sine) - withstands high-current inrush or fault events without bond-wire failure; supports robust front-end protection. |
| TJ max | +175 °C - extended junction temperature rating enables use in under-hood automotive or high-ambient industrial environments. |
| RθJA | 75 °C/W - thermal resistance from junction to ambient; informs heatsinking requirements when operating near power derating limits. |
Pinout & Package
1.5KE22HE3/54 is housed in the standard axial-leaded JEDEC Case Style 1.5KE molded epoxy package (DO-201AD), with matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. The cathode is marked by a color band on the body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to ground or low-side return path in unidirectional clamp configuration; enables low-VF (3.5 V @ 100 A) conduction during surge. |
| Cathode | Current exit point in forward bias; marked with band | Connected to protected line (e.g., 24 V rail); defines polarity-sensitive placement - reversal prevents clamping function. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable VBR tolerance (±5%) and long-term reliability under thermal cycling and humidity stress. |
| 1500 W peak pulse power | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-earth) without derating in compact axial package. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics per stress test requirements including HTRB, HTGB, and TCT. |
| Low clamping ratio (VC/VBR ≈ 1.47) | Minimizes voltage overshoot during transients - critical for protecting 30 V-rated MOSFETs and logic interfaces. |
| RoHS-compliant, JESD 201 Class 2 whisker resistance | Ensures solder joint integrity in reflow and long-term storage; eliminates field failures due to tin whisker growth. |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting 24 V DC input rails in programmable logic controllers (PLCs) against inductive kickback from solenoid drivers and relay coils. IC Role / Device Role / Timing Role: Unidirectional TVS placed between rail and ground to clamp positive-going transients before they reach DC-DC converters and microcontrollers. Use Value: Limits voltage to ≤30.6 V during 49 A surges, preventing latch-up or gate oxide damage in downstream 30 V-rated MOSFETs and LDOs. |
Use Scenario: Safeguarding LIN bus transceivers and window motor drivers in BCMs exposed to load dump and jump-start events. IC Role / Device Role / Timing Role: Standoff device on 12 V battery-supplied lines, activated only during >20.9 V overvoltage events with sub-nanosecond response. Use Value: Withstands 200 A surge (8.3 ms) and operates up to +175 °C - meets ISO 7637-2 Pulse 5a requirements without external heatsink. |
| Telecom Remote Sensor Interface | Consumer Appliance Motor Control Board |
|
Use Scenario: Shielding RS-485 transceivers and analog sensor inputs in outdoor security cameras powered via PoE++ or long cable runs. IC Role / Device Role / Timing Role: Primary overvoltage clamp on VCC line and data line terminations, suppressing lightning-induced surges coupled through cabling. Use Value: Clamps 10/1000 µs transients to 30.6 V with <1 ns response - faster than MOVs or GDTs, preserving signal integrity in high-speed interfaces. |
Use Scenario: Protecting MCU GPIOs and H-bridge gate drivers in washing machine control boards subject to pump motor commutation noise. IC Role / Device Role / Timing Role: Localized TVS on motor driver supply pins and enable lines, absorbing repetitive 1500 W spikes generated during PWM switching. Use Value: Maintains ≤1.0 µA leakage at 18.8 V VWM, eliminating standby current penalty while delivering repeatable 1500 W pulse handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ22A | Smaller SMC (DO-214AA) package; lower PPPM = 600 W; VC = 35.5 V @ 17 A. | Better suited for space-constrained PCBs but insufficient for IEC 61000-4-5 Level 4; requires parallel devices for 1500 W. | Select 1.5KE22HE3/54 when full 1500 W single-device capability, axial lead mounting, or AEC-Q101 qualification is mandatory. |
| 1.5KE22A-E3/54 | Same electrical specs and package, but commercial-grade (non-AEC-Q101); identical VBR, VC, and PPPM. | Lacks automotive qualification testing; not approved for under-hood or safety-critical vehicle subsystems. | Choose 1.5KE22HE3/54 over 1.5KE22A-E3/54 when automotive production compliance, extended temperature validation, or whisker-resistant plating (Class 2) is required. |
Compared with SMBJ22A, 1.5KE22HE3/54 delivers 2.5× higher surge power in an axial package with automotive qualification; compared with 1.5KE22A-E3/54, it adds AEC-Q101 validation and JESD 201 Class 2 whisker resistance - critical for automotive OEM and industrial field-reliability programs.
Availability
1.5KE22HE3/54 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and telecom infrastructure requiring stable component supply with guaranteed long-term manufacturability and RoHS-compliant sourcing.
Supply support for 1.5KE22HE3/54 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 demanding industrial and automotive applications.
The 1.5KE series was engineered specifically for high-energy transient suppression in harsh environments, combining JEDEC-standard axial packaging with AEC-Q101 qualification and 1500 W surge capability - targeting power rail protection in automotive ECUs and industrial PLCs.
FAQ
What is the breakdown voltage range for 1.5KE22HE3/54?
The 1.5KE22HE3/54 has a guaranteed breakdown voltage (VBR) range of 20.9 V to 23.1 V at 1 mA test current, per Vishay Document Number 88301. This tight ±5% tolerance ensures predictable clamping onset in 24 V systems and aligns with JEDEC standard 1.5KE22A specifications. The value is measured under controlled 25 °C conditions and remains stable across temperature due to its low VBR temperature coefficient (0.092 %/°C).
Is 1.5KE22HE3/54 AEC-Q101 qualified?
Yes, 1.5KE22HE3/54 is AEC-Q101 qualified, as confirmed by Vishay's ordering information note stating qualification applies to "1.5KE6.8AHE3_B to 1.5KE220AHE3_B". The HE3 suffix denotes RoHS compliance plus AEC-Q101 qualification, including stress tests such as high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT). This makes 1.5KE22HE3/54 suitable for automotive powertrain and body electronics.
What is the clamping voltage of 1.5KE22HE3/54 at its rated peak pulse current?
The clamping voltage (VC) of 1.5KE22HE3/54 is 30.6 V at 49 A peak pulse current (IPPM), measured with a 10/1000 µs waveform. This value is specified in the Electrical Characteristics table of Vishay Document 88301 and reflects the maximum voltage seen by protected circuitry during a full 1500 W transient event. It directly determines whether downstream components remain within their absolute maximum voltage ratings.
Can 1.5KE22HE3/54 be used in bidirectional configurations?
No, 1.5KE22HE3/54 is a unidirectional TVS diode. Bidirectional variants use the "CA" suffix (e.g., 1.5KE22CA), and Vishay explicitly states that bidirectional types are available only from 1.5KE6.8CA to 1.5KE220CA - meaning 1.5KE22HE3/54 lacks symmetrical breakdown and is intended for DC rail protection where polarity is fixed. Using it in AC or floating applications would result in improper clamping.
What is the maximum operating temperature for 1.5KE22HE3/54?
The maximum operating junction temperature (TJ) for 1.5KE22HE3/54 is +175 °C, and the storage temperature range is –55 °C to +175 °C. This rating is validated per AEC-Q101 and allows deployment in under-hood automotive locations or industrial enclosures with elevated ambient temperatures. Derating curves in Vishay Document 88301 show power capability decreases linearly above 25 °C ambient, reaching ~4.5 W at 100 °C case temperature.
1.5KE22HE3/54 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:
- 1
- Bidirectional Channels:
- -
- 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
1.5KE22HE3/54 FAQ
1.How can I place an order for 1.5KE22HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE22HE3/54 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 1.5KE22HE3/54 reliable?
The price and inventory of 1.5KE22HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE22HE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE22HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE22HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE22HE3/54?
1.5KE22HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE22HE3/54 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 1.5KE22HE3/54?
For technical support, including 1.5KE22HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE22HE3/54 requirements.
6.How does Aetrix verify that 1.5KE22HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE22HE3/54 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 1.5KE22HE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE22HE3/54?
All 1.5KE22HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE22HE3/54, 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 1.5KE22HE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE22HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE22HE3/54 Tags
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