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Vishay General Semiconductor - Diodes Division 5KP24A-E3/51
- Part No.:
- 5KP24A-E3/51
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP24A-E3/51.pdf
- Description:
- TVS DIODE 24VWM 38.9VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:9,811
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Product details
Overview
5KP24A-E3/51 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 24 V stand-off voltage (VWM), 26.7–29.5 V breakdown voltage (VBR) at 5.0 mA, 38.9 V maximum clamping voltage (VC) at 129 A peak pulse current, and 5000 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive power supplies and industrial motor drives.
For engineers reviewing the 5KP24A-E3/51 datasheet, 5KP24A-E3/51 pinout, 5KP24A-E3/51 application, or 5KP24A-E3/51 equivalent, this device is evaluated for high-energy surge immunity in 24 V systems requiring AEC-Q101 qualification, low clamping ratio, and robust thermal derating up to 175 °C junction temperature.
Technical Context
The 5KP24A-E3/51 operates as a silicon avalanche diode with glass-passivated P600 package construction, delivering fast response (<1 ns) and low incremental surge resistance to clamp transients before downstream ICs or MOSFETs are damaged. Its unidirectional polarity enables use on positive-rail protection only, with cathode denoted by color band.
It is rated for 5000 W peak pulse power (10/1000 μs), 8.0 W steady-state power dissipation on infinite heatsink at 75 °C, and withstands 600 A non-repetitive forward surge (8.3 ms half-sine). Junction temperature range spans −55 °C to +175 °C, supporting under-hood automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24.0 V - Maximum continuous reverse operating voltage before leakage exceeds 2.0 μA |
| VBR (min/max) | 26.7 V / 29.5 V at 5.0 mA - Ensures reliable avalanche initiation within tight tolerance for predictable clamping onset |
| VC @ IPPM | 38.9 V at 129 A - Limits transient voltage seen by protected circuit to safe margin below 40 V threshold |
| PPPM | 5000 W - Withstands high-energy surges such as ISO 7637-2 Pulse 5a without failure |
| IFSM | 600 A - Survives 8.3 ms half-sine surge events common in motor commutation and relay switching |
| TJ max | +175 °C - Enables placement near heat sources in engine control units and industrial PLCs |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
5KP24A-E3/51 uses the P600 axial-leaded package: molded epoxy body over passivated junction, UL 94 V-0 rated, matte tin-plated leads solderable per J-STD-002. Polarity is marked by cathode band; leads are mechanically and thermally optimized for through-hole mounting with 275 °C solder dip tolerance (10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry during forward conduction | Connected to ground or low-side return path in unidirectional rail-clamp configuration |
| Cathode (banded end) | Current exit during reverse avalanche | Connected to protected line (e.g., 24 V supply rail); clamps transients toward ground |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Handles severe load-dump and inductive-switching transients without degradation |
| Clamping ratio VC/VBR ≈ 1.37 | Delivers tight voltage limiting - critical for safeguarding 30 V-rated MOSFETs and gate drivers |
| AEC-Q101 qualified | Validated for automotive electronics including engine control, body modules, and ADAS power stages |
| P600 package with RoHS-compliant matte tin leads | Enables manual or wave soldering with JESD 22-B106 compliance and JESD 201 Class 1A whisker resistance |
| −55 °C to +175 °C operating range | Supports deployment in under-hood ECUs and industrial motor drives with minimal derating |
Applications
| Automotive Load-Dump Protection | Industrial DC Power Rail Clamping |
|---|---|
Use Scenario: Protecting 24 V engine control unit (ECU) power input against ISO 7637-2 Pulse 5a (load dump up to 60 V, 400 ms). IC Role / Device Role / Timing Role: Primary shunt TVS placed directly across input terminals to clamp surge energy before it reaches DC/DC converter and microcontroller. Use Value: Limits peak rail voltage to ≤38.9 V, preserving 40 V-input DC/DC regulators and preventing latch-up in 5 V logic supplies. |
Use Scenario: Safeguarding programmable logic controller (PLC) 24 V backplane against inductive kickback from solenoid valves and contactors. IC Role / Device Role / Timing Role: Unidirectional TVS mounted at power entry point to absorb repetitive 500–1000 A transients induced by AC coil de-energization. Use Value: Maintains system uptime by preventing repeated fuse blowing or MOSFET failure - enabling resettable protection without hardware replacement. |
| Telecom Power Supply Output Protection | Motor Drive Gate Driver Supply Clamp |
Use Scenario: Securing +24 V output of telecom rectifier module against lightning-induced surges on distribution bus. IC Role / Device Role / Timing Role: Final-stage TVS on secondary side, downstream of bulk filter capacitors, to suppress residual high-frequency transients. Use Value: Achieves <1 ns response and sub-40 V clamping, protecting sensitive Ethernet PHYs and PMICs sharing the same rail. |
Use Scenario: Clamping isolated 24 V gate driver supply in IGBT-based servo drive during short-circuit fault recovery. IC Role / Device Role / Timing Role: Fast-acting shunt element placed across gate driver VCC and GND to prevent overvoltage damage during shoot-through events. Use Value: Withstands 600 A surge while holding VCC below 40 V - ensuring gate driver ICs remain functional after fault clearing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | Lower peak power (600 W), SMC package, 38.9 V clamping at 15.7 A | Suitable for lower-energy surges (e.g., ESD, IEC 61000-4-2); not rated for load dump | Select when space-constrained PCB layout requires surface-mount and surge energy is ≤100 mJ |
| 1.5KE24A | Same P600 package but lower peak power (1500 W), 38.9 V clamping at 38.8 A | Lacks AEC-Q101 qualification; limited to commercial/industrial use | Choose for cost-sensitive non-automotive 24 V systems where ISO 7637-2 compliance is not required |
Compared with SMBJ24A and 1.5KE24A, the 5KP24A-E3/51 delivers 3.3× higher peak power than 1.5KE24A and 8.3× more than SMBJ24A - making it the only option among the three qualified for automotive load-dump immunity and sustained 24 V rail protection in harsh thermal environments.
Availability
5KP24A-E3/51 is available at Aetrix Electronics and suitable for automotive power systems, industrial motor controls, telecom rectifier outputs, and 24 V embedded power rails requiring stable component supply across multi-year production cycles.
Supply support for 5KP24A-E3/51 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 optoelectronics with emphasis on reliability, power handling, and automotive qualification.
The 5KP series was engineered specifically for high-energy transient suppression in 12 V and 24 V automotive and industrial power systems - prioritizing clamping performance, thermal robustness, and AEC-Q101 compliance over compactness.
FAQ
What is the clamping voltage of the 5KP24A-E3/51 under maximum surge conditions?
The 5KP24A-E3/51 has a maximum clamping voltage (VC) of 38.9 V at its rated peak pulse current of 129 A (10/1000 μs waveform). This value is measured per JEDEC test conditions and ensures protected circuits see no more than 38.9 V during worst-case transients - critical for compatibility with 40 V-rated components downstream. The 5KP24A-E3/51 maintains this clamping performance across its full operating temperature range.
Is the 5KP24A-E3/51 suitable for automotive applications?
Yes, the 5KP24A-E3/51 is AEC-Q101 qualified and explicitly designed for automotive use, including engine control units, body electronics, and ADAS power stages. Its 175 °C maximum junction temperature, robust P600 package, and 5000 W surge capability meet ISO 7637-2 Pulse 5a requirements. The "E3" suffix confirms RoHS compliance and JESD 201 Class 1A whisker resistance - both essential for automotive manufacturing.
How does the 5KP24A-E3/51 differ from the 1.5KE24A in practical design?
The 5KP24A-E3/51 provides 5000 W peak pulse power versus 1500 W for the 1.5KE24A - a 3.3× increase enabling survival of automotive load-dump events. It also carries AEC-Q101 qualification, while the 1.5KE24A is commercial-grade only. Both share the P600 package and similar VC, but the 5KP24A-E3/51 supports higher surge repetition rates and extended thermal operation up to +175 °C.
What is the meaning of the "-E3/51" suffix in 5KP24A-E3/51?
The "E3" denotes RoHS-compliant matte tin plating and JESD 201 Class 1A whisker resistance; "/51" specifies the preferred packaging code - in this case, 500 pieces per 13″ diameter paper tape and reel. This packaging format supports automated pick-and-place assembly and aligns with Vishay's standard logistics for high-volume production. The 5KP24A-E3/51 is not supplied in bulk or ammo-pack variants under this part number.
Can the 5KP24A-E3/51 be used in bidirectional configurations?
No, the 5KP24A-E3/51 is unidirectional only, with polarity indicated by a cathode band. It conducts in reverse avalanche mode to clamp positive transients on a positive rail referenced to ground. For bidirectional protection (e.g., data lines or AC-coupled signals), a separate symmetric TVS array or dual-diode configuration is required - the 5KP24A-E3/51 itself cannot suppress negative-going transients relative to ground.
5KP24A-E3/51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 129A
- Power - Peak Pulse:
- 5000W (5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP24A-E3/51 FAQ
1.How can I place an order for 5KP24A-E3/51 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP24A-E3/51 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 5KP24A-E3/51 reliable?
The price and inventory of 5KP24A-E3/51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP24A-E3/51 is usually 5 days.
3.What payment methods are accepted for 5KP24A-E3/51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP24A-E3/51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP24A-E3/51?
5KP24A-E3/51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP24A-E3/51 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 5KP24A-E3/51?
For technical support, including 5KP24A-E3/51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP24A-E3/51 requirements.
6.How does Aetrix verify that 5KP24A-E3/51 is sourced from the original manufacturer or authorized distributors?
All 5KP24A-E3/51 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 5KP24A-E3/51 meets industry standards.
7.What is the process for return or replacement of 5KP24A-E3/51?
All 5KP24A-E3/51 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP24A-E3/51, 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 5KP24A-E3/51 part is unused and in its original packaging.
Return procedure for 5KP24A-E3/51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP24A-E3/51 Tags
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