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Vishay General Semiconductor - Diodes Division P6KA24HE3/73
- Part No.:
- P6KA24HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KA24HE3/73.pdf
- Description:
- TVS DIODE 19.4VWM 34.7VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,417
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Product details
Overview
P6KA24HE3/73 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection of sensitive electronics against inductive switching transients and lightning surges. It features a 21.6 V minimum breakdown voltage (VBR), 19.4 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 μs), 17.3 A peak pulse current (IPPM), and clamps to ≤34.7 V at rated surge, operating reliably up to +185 °C junction temperature.
For engineers reviewing the P6KA24HE3/73 datasheet, P6KA24HE3/73 pinout, P6KA24HE3/73 application, or P6KA24HE3/73 equivalent, this device is selected for high-reliability automotive and industrial power rail protection where AEC-Q101 qualification, DO-15 package compatibility, and stable clamping under thermal stress are critical design requirements.
Technical Context
The P6KA24HE3/73 employs passivated anisotropic rectifier technology with optimized junction passivation, enabling stable operation up to TJ = 185 °C and meeting AEC-Q101 stress test requirements for automotive applications. Its unidirectional polarity and low incremental surge resistance ensure fast response (<1 ns) and minimal voltage overshoot during transient events.
Rated for 600 W peak pulse power (10/1000 μs waveform, 0.01% duty cycle), it delivers consistent clamping performance across temperature - with VBR temperature coefficient of +0.094 %/°C - and supports soldering per JESD 22-B106 (275 °C, 10 s).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 19.4 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 24 V nominal systems. |
| VBR (min/max) | 21.6 V / 26.4 V at 1 mA - Confirmed breakdown range ensures reliable turn-on without premature conduction in 24 V supply rails. |
| VC @ IPPM | ≤34.7 V at 17.3 A - Clamping voltage limits downstream IC/MOSFET stress during 600 W transients, preserving system-level immunity. |
| IPPM | 17.3 A (10/1000 μs) - Peak surge current rating validated for repetitive inductive load switching in automotive ECUs and industrial controllers. |
| TJ max. | +185 °C - Enables placement near hot components (e.g., power MOSFETs, DC/DC converters) without derating loss in protection capability. |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with matte tin-plated leads, UL 94 V-0 molding, and JESD 201 Class 2 whisker resistance. |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case with cathode indicated by color band. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102. Dimensions: body Ø 3.6 mm × length 9.5 mm, lead diameter 0.86 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side connection | Connected to ground or low-impedance return path; forms series path with cathode for unidirectional clamping to ground. |
| Cathode | Reverse-biased terminal / protected line connection | Connected to the line being protected (e.g., 24 V rail); conducts surge current to anode when VAK exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including HTGB, HTRB, and temperature cycling - suitable for engine control, body electronics, and ADAS modules. |
| 185 °C junction rating | Enables direct mounting on high-temperature PCB zones (e.g., near power stages) without thermal derating penalties in industrial motor drives. |
| 600 W peak pulse power (10/1000 μs) | Withstands ISO 7637-2 Pulse 1/2a/5a transients and IEC 61000-4-5 Level 3 surges in 24 V systems without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.62) | Minimizes overvoltage exposure to downstream MOSFET gates and microcontroller I/O, reducing need for additional filtering or derating margins. |
| Uni-directional polarity only | Optimized for DC rail protection (e.g., 24 V supply lines), eliminating reverse leakage concerns in single-polarity applications. |
Applications
| Automotive Power Rail Protection | Industrial PLC Input/Output Protection |
|---|---|
|
Use Scenario: Protecting 24 V supply inputs in engine control units (ECUs) against load dump and inductive kickback from solenoids and relays. IC Role / Device Role / Timing Role: TVS diode placed in parallel with the input filter capacitor, clamping transients before they reach DC/DC regulators and microcontrollers. Use Value: Maintains system uptime by preventing latch-up or gate oxide damage in protected ICs during ISO 16750-2 load dump events (up to 60 V, 400 ms). |
Use Scenario: Safeguarding digital I/O channels of programmable logic controllers against field-wiring induced surges and ESD in factory automation. IC Role / Device Role / Timing Role: Unidirectional TVS connected between signal line and common ground, absorbing fast transients before reaching optocoupler or level-shifter inputs. Use Value: Extends mean time between failures (MTBF) in harsh industrial environments by suppressing >1 kV EFT/burst noise and 4 kV contact ESD per IEC 61000-4-4/2. |
| Telecom Power Interface Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Securing 24 V auxiliary power inputs in base station remote radio units exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary overvoltage clamp on the front-end DC input stage, coordinated with upstream fuses and downstream π-filters. Use Value: Achieves IEC 61000-4-5 Level 4 (4 kV line-earth) immunity without requiring larger, costlier multi-stage protection schemes. |
Use Scenario: Shielding BLDC motor driver ICs and gate drivers in smart home appliances (e.g., washing machines, HVAC fans) from back-EMF spikes. IC Role / Device Role / Timing Role: TVS mounted across motor phase outputs or DC bus rails, diverting inductive energy during PWM commutation transitions. Use Value: Prevents destructive avalanche failure in 600 V MOSFETs by limiting VDS overshoot to <35 V during 100 A+ switching events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A-E3/52 (Vishay) | Same VWM (19.4 V), but SMC package (DO-214AB); 600 W rating, bidirectional variant available; lower thermal resistance (RθJA ≈ 40 °C/W vs. DO-15's ~65 °C/W). | Preferred for surface-mount designs with space constraints; not axial-compatible; requires rework of footprint and assembly process. | Select SMBJ24A-E3/52 when board real estate is limited and SMT assembly is established; retain P6KA24HE3/73 for through-hole legacy or high-vibration mechanical retention needs. |
| 1.5KE24A (ON Semiconductor) | Same DO-15 package and unidirectional configuration; identical VWM/VBR specs; however, rated for 1.5 kW peak pulse power (10/1000 μs) and higher IPPM (62.5 A), with TJ max. = +175 °C (vs. +185 °C). | Better suited for higher-energy surge environments (e.g., utility metering, outdoor lighting), but lacks AEC-Q101 qualification and 185 °C rating. | Choose 1.5KE24A for cost-sensitive industrial applications needing higher surge headroom; prefer P6KA24HE3/73 where automotive qualification or extended temperature margin is mandatory. |
Compared with SMBJ24A-E3/52 and 1.5KE24A, the P6KA24HE3/73 uniquely combines AEC-Q101 qualification, +185 °C operation, and DO-15 axial form factor - making it the only option among the three qualified for under-hood automotive use with mechanical vibration resilience and thermal headroom.
Availability
P6KA24HE3/73 is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, telecom power interfaces, and consumer appliance motor drives requiring stable component supply across long production lifecycles.
Supply support for P6KA24HE3/73 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, TVS devices, and power MOSFETs with emphasis on reliability, thermal performance, and automotive-grade validation.
The P6KA24HE3/73 belongs to Vishay's PAR® (Protected Automotive Rated) TVS family, engineered specifically for high-temperature, high-reliability protection in automotive and industrial power systems where sustained thermal stress and transient immunity are co-critical.
FAQ
What is the maximum clamping voltage of the P6KA24HE3/73 under rated surge conditions?
The P6KA24HE3/73 clamps to a maximum of 34.7 V when subjected to its rated 17.3 A peak pulse current (IPPM) using the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Vishay datasheet Document Number 88368, ensuring predictable overvoltage limiting for 24 V system components.
Is the P6KA24HE3/73 suitable for automotive applications?
Yes, the P6KA24HE3/73 is AEC-Q101 qualified and rated for operation up to +185 °C junction temperature, making it suitable for under-hood and powertrain-related automotive applications. Its DO-15 package provides mechanical robustness against vibration, and its electrical parameters align with ISO 7637-2 and ISO 16750-2 transient immunity requirements.
What does the "HE3" suffix indicate in P6KA24HE3/73?
"HE3" denotes Vishay's RoHS-compliant, matte tin-plated leads that meet JESD 201 Class 2 whisker resistance requirements and J-STD-002 solderability standards. The "/73" indicates packaging in 73-inch tape-and-reel format (4000 pcs/reel), distinct from the "/54" variant (13-inch reel).
How does the P6KA24HE3/73 differ from the P6KA24A variant?
The P6KA24HE3/73 has a VBR range of 21.6 V to 26.4 V, while the P6KA24A variant tightens this to 22.8 V–25.2 V. Both share identical VWM (19.4 V), IPPM (17.3 A), VC (34.7 V), and package. The "A" suffix indicates tighter VBR tolerance for applications demanding precise clamping onset.
Can the P6KA24HE3/73 be used in bidirectional protection circuits?
No - the P6KA24HE3/73 is unidirectional only, as explicitly stated in the Vishay datasheet. It conducts surge current only when the cathode is positive relative to the anode. For bidirectional protection (e.g., AC lines or data lines with ± transients), a separate bidirectional TVS such as SMBJ24CA must be selected.
P6KA24HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- PAR®
- Packaging:
- Tape & Box (TB)
- 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):
- 17.3A
- Power - Peak Pulse:
- 600W
- 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:
- DO-204AC (DO-15)
P6KA24HE3/73 FAQ
1.How can I place an order for P6KA24HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KA24HE3/73 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 P6KA24HE3/73 reliable?
The price and inventory of P6KA24HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KA24HE3/73 is usually 5 days.
3.What payment methods are accepted for P6KA24HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KA24HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KA24HE3/73?
P6KA24HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KA24HE3/73 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 P6KA24HE3/73?
For technical support, including P6KA24HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KA24HE3/73 requirements.
6.How does Aetrix verify that P6KA24HE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KA24HE3/73 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 P6KA24HE3/73 meets industry standards.
7.What is the process for return or replacement of P6KA24HE3/73?
All P6KA24HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KA24HE3/73, 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 P6KA24HE3/73 part is unused and in its original packaging.
Return procedure for P6KA24HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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