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Vishay General Semiconductor - Diodes Division 1.5KE24HE3/54
- Part No.:
- 1.5KE24HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE24HE3/54.pdf
- Description:
- TVS DIODE 19.4VWM 34.7VC 1.5KE
- Quantity:
- Payment:
- Shipping:
Inventory:4,614
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Product details
Overview
1.5KE24HE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-level overvoltage protection in power rails and signal lines. It features a 24 V breakdown voltage (VBR = 22.8–25.2 V at 1.0 mA), 1500 W peak pulse power (10/1000 µs), clamping voltage of 33.2 V at 45.2 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 motor drives.
For engineers reviewing the 1.5KE24HE3/54 datasheet, 1.5KE24HE3/54 pinout, 1.5KE24HE3/54 application, or 1.5KE24HE3/54 equivalent, this page delivers verified electrical parameters, JEDEC 1.5KE package details, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), and real-world clamping behavior under standardized surge waveforms.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance. Its unidirectional polarity uses a cathode band marking and exhibits 3.5 V forward voltage at 100 A, with 200 A non-repetitive surge current rating (8.3 ms half-sine).
The device complies with UL 497B recognition (QVGQ2) and meets JESD 201 Class 2 whisker resistance (HE3 suffix). It is rated for 6.5 W steady-state power dissipation on an infinite heatsink at TL = 75 °C and derates linearly above 25 °C ambient per Figure 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 22.8 V / 25.2 V at 1.0 mA - defines precise clamping onset threshold for overvoltage detection |
| VWM | 20.5 V - maximum continuous reverse working voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 33.2 V at 45.2 A - actual clamped voltage during 1500 W transient, critical for downstream component survival |
| PPPM | 1500 W (10/1000 µs) - peak surge handling capacity for lightning and inductive kick events |
| IFSM | 200 A (8.3 ms half-sine) - single-pulse surge current limit without bond wire failure |
| TJ range | –55 °C to +175 °C - enables deployment in under-hood automotive and industrial environments |
| RθJA | 75 °C/W - thermal resistance from junction to ambient, informs PCB copper pour and heatsinking requirements |
Pinout & Package
Package: JEDEC DO-201AD (Case Style 1.5KE), molded epoxy body with matte tin-plated leads; RoHS-compliant and AEC-Q101 qualified (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode | Reverse-biased clamping terminal | Marked with color band; connects to protected line (e.g., 24 V rail or signal input) to shunt surges to ground |
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 | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation |
| Sub-nanosecond response time | Clamps transients before sensitive ICs experience overstress-critical for microcontroller I/O protection |
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics per stress test requirements |
| UL 497B recognition (QVGQ2) | Meets safety agency requirements for telecom and industrial surge protection modules |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and feedback sensors against inductive kickback from 24 V solenoid coils and relay loads. IC Role / Device Role: Primary clamping element placed across DC bus or signal inputs to limit transient voltage to ≤33.2 V. Use Value: Prevents latch-up and oxide rupture in 3.3 V/5 V logic interfaces by limiting overshoot below absolute maximum ratings. | Use Scenario: Safeguarding LIN bus transceivers and window lift control ICs from load dump and jump-start events. IC Role / Device Role: Unidirectional TVS connected between LIN line and chassis ground to clamp negative transients. Use Value: Maintains signal integrity during ISO 7637-2 Pulse 1/2a/5a tests while meeting AEC-Q101 lifetime requirements. |
| Telecom Power Feeds | Consumer Appliance Control Boards |
Use Scenario: Overvoltage suppression on 24 V PoE-powered remote units exposed to induced lightning on outdoor cabling. IC Role / Device Role: Front-end protector on DC input stage upstream of DC/DC converters and supervisors. Use Value: Absorbs 1500 W surges per R.E.A. P.E. 60 specification without requiring series impedance or active crowbar circuits. | Use Scenario: Input rail protection for MCU-based washing machine mainboards subjected to relay coil flyback and ESD from user interface buttons. IC Role / Device Role: Standoff-rated TVS on 24 V supply rail feeding motor driver ICs and display backlight controllers. Use Value: Eliminates need for redundant Zener+capacitor networks by providing certified single-device clamping with 20.5 V VWM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | Lower peak power (600 W), smaller SMB package (vs. DO-201AD), same VBR range (22.8–25.2 V) | Not suitable for 1500 W IEC 61000-4-5 Level 4; limited to board-level ESD and lower-energy transients | Select when space-constrained layouts preclude DO-201AD and surge energy is ≤600 W |
| 1.5KE24A-E3/54 | Same electrical specs and DO-201AD package, but commercial-grade (non-AEC-Q101) and JESD 201 Class 1A whisker rating (E3 vs. HE3) | Lacks automotive qualification; not approved for under-hood or safety-critical vehicle subsystems | Select for cost-sensitive industrial or consumer designs where AEC-Q101 is not mandated |
Compared with SMBJ24A and 1.5KE24A-E3/54, the 1.5KE24HE3/54 uniquely combines 1500 W surge capability, AEC-Q101 qualification, and UL 497B recognition-making it the only option among the three validated for automotive powertrain and high-energy industrial surge environments.
Availability
1.5KE24HE3/54 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and consumer appliance control boards requiring stable component supply and full AEC-Q101 traceability.
Supply support for 1.5KE24HE3/54 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, and protection devices with emphasis on reliability and application-specific validation.
The 1.5KE family was engineered for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated.
FAQ
What is the breakdown voltage tolerance for 1.5KE24HE3/54?
The 1.5KE24HE3/54 has a guaranteed breakdown voltage range of 22.8 V to 25.2 V at 1.0 mA test current, corresponding to ±5 % tolerance around the nominal 24 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports reliable system-level overvoltage margining in designs using the 1.5KE24HE3/54.
Is 1.5KE24HE3/54 suitable for automotive applications?
Yes, the 1.5KE24HE3/54 is AEC-Q101 qualified (per note 2 on page 3 of document 88301) and meets JESD 201 Class 2 whisker resistance. It is approved for use in automotive body electronics, powertrain subsystems, and infotainment power supplies where 1500 W transient suppression and extended temperature operation (–55 °C to +175 °C) are required-making the 1.5KE24HE3/54 appropriate for under-hood and chassis-mounted modules.
What is the clamping voltage of 1.5KE24HE3/54 at its rated peak pulse current?
The 1.5KE24HE3/54 clamps to a maximum of 33.2 V at its peak pulse current of 45.2 A (10/1000 µs waveform). This value is measured per standard test conditions and defines the upper voltage limit imposed on protected circuitry during worst-case surge events-directly enabling safe operation of downstream 3.3 V or 5 V ICs when the 1.5KE24HE3/54 is correctly applied.
Does 1.5KE24HE3/54 have UL recognition?
Yes, the 1.5KE24HE3/54 carries Underwriters Laboratories recognition under file E136766 for both unidirectional and bidirectional variants, compliant with UL 497B for telecommunications protectors (QVGQ2 classification). This certification validates its suitability in UL-listed surge protection modules for telecom infrastructure and industrial control panels using the 1.5KE24HE3/54.
What is the thermal resistance of 1.5KE24HE3/54, and how does it affect layout?
The 1.5KE24HE3/54 has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W. This value assumes standard JEDEC test conditions (single device on FR-4 with minimal copper); designers must allocate ≥1 in² of 2-oz copper pour connected to both leads to maintain TJ < 175 °C under sustained 6.5 W dissipation. Layout decisions directly impact reliability-undersized copper increases thermal stress on the 1.5KE24HE3/54 during repetitive surge events.
1.5KE24HE3/54 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):
- 19.4V
- Voltage - Breakdown (Min):
- 21.6V
- Voltage - Clamping (Max) @ Ipp:
- 34.7V
- Current - Peak Pulse (10/1000µs):
- 43.2A
- 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
1.5KE24HE3/54 FAQ
1.How can I place an order for 1.5KE24HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE24HE3/54 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 1.5KE24HE3/54 reliable?
The price and inventory of 1.5KE24HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE24HE3/54 is usually 5 days.
3.What payment methods are accepted for 1.5KE24HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE24HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE24HE3/54?
1.5KE24HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE24HE3/54 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 1.5KE24HE3/54?
For technical support, including 1.5KE24HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE24HE3/54 requirements.
6.How does Aetrix verify that 1.5KE24HE3/54 is sourced from the original manufacturer or authorized distributors?
All 1.5KE24HE3/54 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 1.5KE24HE3/54 meets industry standards.
7.What is the process for return or replacement of 1.5KE24HE3/54?
All 1.5KE24HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE24HE3/54, 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 1.5KE24HE3/54 part is unused and in its original packaging.
Return procedure for 1.5KE24HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE24HE3/54 Tags
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