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Vishay General Semiconductor - Diodes Division 5KP24AHE3_A/C
- Part No.:
- 5KP24AHE3_A/C
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP24AHE3_A/C.pdf
- Description:
- TVS DIODE 24VWM 38.9VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:9,611
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Product details
Overview
5KP24AHE3_A/C from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection of DC power rails and signal lines. It features 24.0 V stand-off voltage (VWM), 26.7–29.5 V breakdown voltage (VBR) at 5.0 mA, 38.9 V clamping voltage (VC) at 129 A peak pulse current (IPPM), and 5000 W peak pulse power (10/1000 μs). It is AEC-Q101 qualified and used to protect automotive power supplies and industrial sensor interfaces against lightning and inductive switching transients.
For engineers reviewing the 5KP24AHE3_A/C datasheet, 5KP24AHE3_A/C pinout, 5KP24AHE3_A/C application, or 5KP24AHE3_A/C equivalent, key selection criteria include clamping voltage margin relative to protected IC's absolute maximum rating, peak pulse current capability under system-level surge test conditions (e.g., ISO 7637-2 Pulse 5a), and AEC-Q101 qualification status for automotive deployment.
Technical Context
This TVS diode employs a glass-passivated P600 chip junction with low incremental surge resistance and sub-nanosecond response time, enabling effective suppression of fast-rising transients. Its unidirectional polarity supports DC-biased rail protection without reverse conduction during normal operation.
The device is rated for 175 °C maximum junction temperature and derates linearly above 25 °C ambient, with 8.0 W steady-state power dissipation on an infinite heatsink at TL = 75 °C. It withstands 500 A non-repetitive forward surge current (8.3 ms half-sine) and exhibits 0.101 %/°C temperature coefficient of VBR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 24.0 V - Maximum continuous reverse operating voltage before clamping begins; sets upper limit for protected circuit's nominal DC rail. |
| VBR (min/max) | 26.7 V / 29.5 V at 5.0 mA - Confirmed breakdown range ensures reliable turn-on margin above VWM while avoiding premature conduction. |
| VC @ IPPM | 38.9 V at 129 A - Clamping voltage defines worst-case overvoltage seen by downstream components during 10/1000 μs surge. |
| PPPM | 5000 W - Peak pulse power handling capacity per JEDEC-standard 10/1000 μs waveform; determines survivability under high-energy transients. |
| IFSM | 500 A - Non-repetitive forward surge current rating (8.3 ms half-sine); validates robustness during fault-clearing events like fuse blow. |
| TJ max. | +175 °C - Maximum junction temperature enables operation in under-hood automotive environments and high-ambient industrial enclosures. |
| Polarity | Unidirectional - Supports DC power rail protection only; cathode marked by color band; not suitable for AC or bidirectional signal line protection. |
Pinout & Package
Package: P600 molded epoxy case with matte tin-plated leads; meets UL 94 V-0 flammability rating; RoHS compliant and AEC-Q101 qualified (HE3 suffix). Cathode indicated by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during clamping | Connected to lower-potential side (e.g., ground or return path); must handle full IPPM during transient. |
| Cathode | Current exit terminal during clamping | Marked by color band; connected to protected line (e.g., +24 V rail); defines clamping reference point. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; required for engine control, body electronics, and ADAS power rails. |
| 5000 W peak pulse power (10/1000 μs) | Enables single-device protection against ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Level 4 surges without parallel staging. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes overvoltage stress on protected MOSFETs, regulators, and microcontrollers-critical for 3.3 V/5 V logic interfacing with 24 V systems. |
| 175 °C junction rating | Supports placement near heat-generating components (e.g., power inductors, motor drivers) without thermal derating penalties in sealed enclosures. |
| P600 mechanical robustness | High thermal mass and lead-frame design sustain repeated surge events; solderable per J-STD-002 with 275 °C/10 s tolerance. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs of engine control units (ECUs) and body control modules (BCMs) against load dump transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed directly at connector entry point to shunt surge energy to chassis ground. Use Value: Limits transient voltage to ≤38.9 V, preventing latch-up or permanent damage to 40 V-rated DC-DC converters and CAN transceivers. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) of pressure/temperature sensors in factory automation PLCs exposed to relay coil flyback. IC Role / Device Role / Timing Role: Fast-response voltage clamp on sensor output node, positioned upstream of signal conditioning op-amps and ADC inputs. Use Value: Clamps induced spikes within <1 ns, preserving signal integrity and avoiding false readings or ADC saturation during field wiring faults. |
| Switching Power Supply Output Protection | Telecom DC Feeder Line Protection |
Use Scenario: Secondary-side overvoltage suppression on 24 V outputs of isolated DC-DC converters in industrial power supplies subject to transformer leakage inductance spikes. IC Role / Device Role / Timing Role: Crowbar-replacement TVS across output terminals to absorb stored inductive energy during switch-off events. Use Value: Withstands 500 A surge current without failure, allowing upstream fuses to clear while maintaining system reset capability. |
Use Scenario: Primary protection of -48 V DC feeder lines in telecom base station cabinets against lightning-induced common-mode surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to system ground, installed at cabinet entry point ahead of DC/DC isolation stages. Use Value: 5000 W rating handles IEC 61000-4-5 Combination Wave (10/700 μs) surges up to 4 kV, meeting GR-1089-CORE requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24AHE3/A | Lower PPPM (600 W), smaller SMB package, same VWM (24 V), higher VC (38.9 V), AEC-Q101 qualified. | Targeted for space-constrained PCBs with lower surge exposure (e.g., infotainment USB ports); insufficient for ISO 7637-2 Pulse 5a. | Select when board area is critical and surge threat level is limited to IEC 61000-4-2/4-4; not a drop-in replacement for 5KP24AHE3_A/C in high-power rail protection. |
| 1.5KE24A | Same VWM (24 V), lower PPPM (1500 W), DO-201 package, non-AEC-Q101, higher VC (39.4 V). | General-purpose industrial use where automotive qualification and 5 kW surge immunity are not required. | Choose for cost-sensitive commercial equipment with moderate surge risk; requires layout review due to different thermal mass and mounting footprint. |
Compared with SMBJ24AHE3/A and 1.5KE24A, the 5KP24AHE3_A/C delivers 3.3× and 3.3× higher peak pulse power respectively, maintains identical clamping performance at higher current, and provides validated automotive reliability-making it the sole option for demanding 24 V rail protection in AEC-Q101-compliant systems.
Availability
5KP24AHE3_A/C is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feeder line surge suppression requiring stable component supply across multi-year production cycles.
Supply support for 5KP24AHE3_A/C 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 automotive and industrial DC power systems, prioritizing robustness under load dump, lightning, and inductive switching events.
FAQ
What is the clamping voltage of the 5KP24AHE3_A/C and why does it matter?
The 5KP24AHE3_A/C has a maximum clamping voltage (VC) of 38.9 V at 129 A peak pulse current (10/1000 μs). This value defines the highest voltage imposed on protected circuitry during a surge event. For a 24 V system with 40 V-rated downstream ICs, this clamping margin prevents destructive overvoltage-ensuring reliability in automotive ECUs and industrial controllers where transient immunity is mission-critical.
Is the 5KP24AHE3_A/C suitable for bidirectional signal line protection?
No, the 5KP24AHE3_A/C is unidirectional only, with cathode marked by a color band. It conducts only when the cathode is more positive than the anode-making it appropriate for DC power rail protection but unsuitable for AC or bidirectional data lines (e.g., RS-485, CAN). For such applications, a bidirectional variant like 5KP24CAHE3_A/C would be required.
How does the AEC-Q101 qualification impact use of the 5KP24AHE3_A/C in automotive designs?
The AEC-Q101 qualification confirms that the 5KP24AHE3_A/C has passed rigorous stress tests-including temperature cycling, high-temperature reverse bias, and ESD-required for automotive under-hood and chassis-mounted applications. This eliminates need for additional qualification testing by Tier 1 suppliers and supports PPAP compliance for systems like body control modules and ADAS power domains.
What is the thermal derating behavior of the 5KP24AHE3_A/C above 25 °C ambient?
The 5KP24AHE3_A/C derates linearly above 25 °C ambient temperature, with its peak pulse power (PPPM) decreasing per Figure 2 in the datasheet. At 100 °C ambient, PPPM drops to approximately 65 % of rated 5000 W. Its 175 °C maximum junction temperature allows continued operation in high-heat zones, provided PCB copper area and airflow meet Vishay's recommended thermal layout guidelines for P600.
Can the 5KP24AHE3_A/C replace a crowbar circuit in power supply designs?
Yes-the 5KP24AHE3_A/C was explicitly designed to replace crowbar circuits in switching power supply outputs. Unlike SCR-based crowbars that short the output permanently, this TVS clamps transient overvoltages non-destructively and resets automatically. It absorbs surge energy while allowing upstream fuses or breakers to clear, enabling system recovery without manual intervention-ideal for 24 V industrial PSUs and telecom rectifiers.
5KP24AHE3_A/C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP24AHE3_A/C FAQ
1.How can I place an order for 5KP24AHE3_A/C through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP24AHE3_A/C 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 5KP24AHE3_A/C reliable?
The price and inventory of 5KP24AHE3_A/C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP24AHE3_A/C is usually 5 days.
3.What payment methods are accepted for 5KP24AHE3_A/C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP24AHE3_A/C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP24AHE3_A/C?
5KP24AHE3_A/C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP24AHE3_A/C 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 5KP24AHE3_A/C?
For technical support, including 5KP24AHE3_A/C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP24AHE3_A/C requirements.
6.How does Aetrix verify that 5KP24AHE3_A/C is sourced from the original manufacturer or authorized distributors?
All 5KP24AHE3_A/C 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 5KP24AHE3_A/C meets industry standards.
7.What is the process for return or replacement of 5KP24AHE3_A/C?
All 5KP24AHE3_A/C units undergo pre-shipment inspection (PSI). If there is an issue with 5KP24AHE3_A/C, 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 5KP24AHE3_A/C part is unused and in its original packaging.
Return procedure for 5KP24AHE3_A/C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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