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Vishay General Semiconductor - Diodes Division 6KA24HE3/73
- Part No.:
- 6KA24HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
6KA24HE3/73.pdf
- Description:
- TVS DIODE 24VWM 45VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:4,172
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Product details
Overview
6KA24HE3/73 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in P600 package, rated for 24 V working voltage, 6000 W peak pulse power (10/1000 µs), and 185 °C junction temperature - designed for automotive load dump protection in engine control units and body electronics.
For engineers reviewing the 6KA24HE3/73 datasheet, 6KA24HE3/73 pinout, 6KA24HE3/73 application, or 6KA24HE3/73 equivalent, key selection criteria include clamping voltage at 90 A (40 V max), AEC-Q101 qualification, low leakage (1.0 µA at 24 V), and high surge capability (400 A IFSM).
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to achieve stable breakdown behavior up to TJ = 185 °C, enabling operation in under-hood automotive environments. Its unidirectional polarity and 26.7–32.6 V breakdown range at 100 mA ensure precise overvoltage clamping during transients.
The device delivers 6000 W peak pulse power under 10/1000 µs waveform and sustains 2000 W under longer 10 µs/50 ms pulses, with clamping voltage tightly specified at 40 V (25 °C) and 45 V (150 °C) at 90 A - critical for protecting downstream 24 V CAN/LIN interfaces and microcontrollers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24 V - maximum continuous reverse voltage before conduction begins; sets system-level stand-off threshold for 24 V rail protection |
| VBR min/max | 26.7 V / 32.6 V at 100 mA - defines guaranteed breakdown window for reliable triggering across temperature and unit variation |
| VC @ 90 A | 40 V max at 25 °C - clamping voltage limits stress on protected ICs during ISO 7637-2 load dump events |
| PPPM (10/1000 µs) | 6000 W - enables suppression of high-energy transients without failure in automotive power systems |
| IFSM | 400 A - withstands repetitive 8.3 ms half-sine surges common in alternator load dump scenarios |
| TJ max | 185 °C - supports placement near heat sources in engine compartments per AEC-Q101 requirements |
| IRSM | 90 A - peak pulse current rating directly tied to clamping voltage specification and thermal design margin |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; UL 94 V-0 rated; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or low-side return path in unidirectional TVS configuration |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected 24 V line; color band identifies this terminal for correct PCB orientation |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Enables stable VBR and low leakage (1.0 µA @ 24 V, 25 °C) over lifetime and temperature cycling |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control, lighting, and ADAS power domains |
| 185 °C junction rating | Permits direct mounting on high-temperature PCB areas without derating penalties in under-hood modules |
| Solder dip tolerance | Withstands 275 °C for 10 s per JESD22-B106 - compatible with standard lead-free reflow and wave soldering |
| Uni-directional clamping | Protects against positive-going transients only, simplifying layout and avoiding DC blocking issues in 24 V supply rails |
Applications
| Engine Control Unit (ECU) Power Input Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Suppresses ISO 7637-2 Pulse 5a/b load dump transients on 24 V battery-fed ECU inputs. IC Role / Device Role / Timing Role: Unidirectional TVS clamps voltage spikes to ≤40 V within nanoseconds, shielding MCU power pins and CAN transceivers. Use Value: Prevents latch-up or permanent damage to 24 V-rated microcontrollers and interface ICs during alternator field decay events. | Use Scenario: Protects BCM power rail from switching transients induced by solenoid drivers and relay coils. IC Role / Device Role / Timing Role: Absorbs 400 A surge currents (8.3 ms) while maintaining <45 V clamping at 150 °C ambient. Use Value: Ensures uninterrupted operation of LIN bus peripherals and LED drivers during frequent load switching in door modules. |
| Commercial Vehicle Telematics Unit | Off-Road Equipment Battery Management |
Use Scenario: Guards GNSS receiver and cellular modem power inputs against cranking-induced transients and jump-start surges. IC Role / Device Role / Timing Role: Provides 6000 W peak pulse handling (10/1000 µs) to survive harsh 24 V vehicle electrical environments. Use Value: Eliminates need for redundant filtering stages, reducing BOM count and board space in compact telematics enclosures. | Use Scenario: Shields battery monitoring ICs and charge controllers from inductive kickback in hydraulic valve control circuits. IC Role / Device Role / Timing Role: Operates reliably from −65 °C to +185 °C junction, supporting extended temperature range requirements in mining and agricultural machinery. Use Value: Maintains clamping performance stability across extreme thermal cycles, preventing false fault triggers in safety-critical BMS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24AHE3/54 | Lower PPPM (400 W), SMA package, 24 V VWM, unidirectional | Rated for lower-energy transients; suited for non-automotive industrial controls | Select when space-constrained layouts require SMD mounting and surge energy is ≤400 W |
| 1.5KE24A | Higher VBR (26.7–30.6 V), DO-201 package, 1500 W PPPM, AEC-Q101 not claimed | Lacks automotive qualification and high-temperature derating data; used in legacy designs | Choose only for cost-sensitive replacements where AEC-Q101 and 185 °C operation are not required |
Compared with SMAJ24AHE3/54 and 1.5KE24A, the 6KA24HE3/73 delivers 15× higher peak pulse power and certified automotive reliability - making it the sole option for modern 24 V load dump compliance in ECU and BCM designs.
Availability
6KA24HE3/73 is available at Aetrix Electronics and suitable for automotive engine control units, body control modules, and commercial vehicle telematics requiring stable component supply with full AEC-Q101 traceability and long-term production support.
Supply support for 6KA24HE3/73 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 automotive, industrial, and power applications.
The PAR® TVS series - including 6KA24HE3/73 - was engineered specifically for high-energy transient suppression in 24 V automotive systems, targeting ISO 7637-2 compliance and under-hood thermal resilience.
FAQ
What is the clamping voltage of the 6KA24HE3/73 at 90 A and 150 °C?
The 6KA24HE3/73 has a maximum clamping voltage of 45 V at 90 A and 150 °C, as specified in the Additional Characteristics table. This elevated clamping value reflects thermal derating behavior essential for sustained operation in hot under-hood environments. The 6KA24HE3/73 maintains safe voltage margins below 24 V system IC absolute maximum ratings even at peak junction temperature.
Is the 6KA24HE3/73 qualified to AEC-Q101?
Yes, the 6KA24HE3/73 is explicitly AEC-Q101 qualified, as confirmed in the Mechanical Data section and Notes column of the Vishay datasheet (Document Number: 88309). This qualification covers temperature cycling, humidity testing, and mechanical stress validation required for automotive power electronics. The 6KA24HE3/73 meets all stress test requirements defined in the AEC-Q101 standard.
What does the HE3 suffix indicate on the 6KA24HE3/73?
The HE3 suffix on the 6KA24HE3/73 denotes RoHS-compliant construction and compliance with JESD201 Class 2 whisker resistance testing. It also signifies that the part meets Vishay's internal high-reliability screening for automotive use. The 6KA24HE3/73 uses matte tin-plated leads solderable per J-STD-002 and JESD22-B102, ensuring robust interconnect integrity in production assembly.
Can the 6KA24HE3/73 be used in bidirectional configurations?
No, the 6KA24HE3/73 is a unidirectional TVS diode and must be used with cathode connected to the protected line and anode to ground. It does not provide symmetrical clamping for negative transients. For bidirectional protection, a separate device such as the 6KA24HE3/73's complementary dual-diode variant or a dedicated bidirectional TVS would be required - the 6KA24HE3/73 itself only conducts in reverse breakdown mode.
What is the maximum DC reverse leakage current for the 6KA24HE3/73 at 150 °C?
The maximum DC reverse leakage current for the 6KA24HE3/73 is 50 µA at 24 V and 150 °C, as stated in the Additional Characteristics table. This elevated leakage at high temperature remains well within safe operating limits for 24 V automotive systems and does not compromise protection effectiveness. The 6KA24HE3/73 maintains functional integrity despite this thermally induced leakage increase.
6KA24HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- PAR®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 45V
- Current - Peak Pulse (10/1000µs):
- 90A (8/20µs)
- Power - Peak Pulse:
- 6000W (6kW)
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
6KA24HE3/73 FAQ
1.How can I place an order for 6KA24HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for 6KA24HE3/73 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 6KA24HE3/73 reliable?
The price and inventory of 6KA24HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 6KA24HE3/73 is usually 5 days.
3.What payment methods are accepted for 6KA24HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 6KA24HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 6KA24HE3/73?
6KA24HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 6KA24HE3/73 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 6KA24HE3/73?
For technical support, including 6KA24HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 6KA24HE3/73 requirements.
6.How does Aetrix verify that 6KA24HE3/73 is sourced from the original manufacturer or authorized distributors?
All 6KA24HE3/73 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 6KA24HE3/73 meets industry standards.
7.What is the process for return or replacement of 6KA24HE3/73?
All 6KA24HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with 6KA24HE3/73, 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 6KA24HE3/73 part is unused and in its original packaging.
Return procedure for 6KA24HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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