My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 5KP43HE3/54
- Part No.:
- 5KP43HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP43HE3/54.pdf
- Description:
- TVS DIODE 43VWM 76.7VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:2,599
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
5KP43HE3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection with 5000 W peak pulse power (10/1000 μs), 43 V stand-off voltage (VWM), and 69.4 V clamping voltage (VC) at 72 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the 5KP43HE3/54 datasheet, 5KP43HE3/54 pinout, 5KP43HE3/54 application, or 5KP43HE3/54 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 175 °C max junction temperature, RoHS-compliant matte tin leads, and P600 package compatibility with high-surge PCB layouts.
Technical Context
The 5KP43HE3/54 operates as a silicon avalanche diode with glass-passivated P600 chip junction, delivering fast response time and low incremental surge resistance to clamp transients induced by inductive load switching or lightning surges. Its unidirectional polarity and 43 V stand-off enable precise overvoltage thresholding on DC rails.
It is rated for 5000 W peak pulse power under JEDEC-standard 10/1000 μs waveform at 0.01 % duty cycle, with thermal derating above 25 °C per Fig. 2 and maximum 8.0 W steady-state power dissipation on infinite heatsink at TL = 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 43 V - Maximum continuous reverse voltage before clamping begins; sets operating margin for 48 V nominal systems. |
| VBR (Breakdown) | 47.8–52.8 V at 5 mA - Confirmed avalanche onset range; ensures reliable triggering above system operating voltage. |
| VC (Clamping) | 69.4 V at 72 A - Peak voltage seen by protected circuit during 5000 W transient; limits stress on downstream 75 V-rated components. |
| IPPM | 72 A - Peak pulse current capability under 10/1000 μs waveform; supports robust protection against IEC 61000-4-5 Level 4 surges. |
| TJ max | 175 °C - Maximum junction temperature; enables operation in under-hood automotive environments without thermal shutdown. |
| Polarity | Unidirectional - Requires cathode band oriented toward positive rail; prevents forward conduction during normal operation. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; suitable for engine control units and ADAS power stages. |
Pinout & Package
Package: P600 molded epoxy body with matte tin-plated leads; UL 94 V-0 rated; cathode indicated by color band. Lead finish complies with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection | Connected to ground or return path; carries full surge current during clamping event. |
| Cathode | High-side connection | Connected to protected line (e.g., 48 V rail); color band identifies this terminal for correct PCB orientation. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power | Enables single-device protection against severe transients (e.g., ISO 7637-2 Pulse 5a) without parallel staging. |
| AEC-Q101 qualification | Validates long-term reliability in automotive power modules where failure modes impact functional safety. |
| 175 °C junction rating | Supports placement near heat-generating components (e.g., DC-DC converters) without derating penalties. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns), improving protection margin for sensitive gate drivers. |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualification and JESD 201 Class 2 whisker resistance-critical for high-vibration automotive assemblies. |
Applications
| Automotive Power Supply Protection | Industrial DC Motor Drive Input |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs from load dump and alternator transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input rail to clamp surges before they reach DC-DC controllers and microcontrollers. Use Value: Withstands 5000 W pulses and 175 °C ambient, enabling direct integration into under-hood power distribution modules without external heatsinking. | Use Scenario: Safeguarding motor drive inverters from inductive kickback during rapid PWM switching or emergency stop. IC Role / Device Role / Timing Role: High-power TVS connected between DC bus and ground to absorb energy from flyback diodes and parasitic inductance. Use Value: 69.4 V clamping at 72 A ensures MOSFETs rated for 75 V remain within safe SOA during repetitive 10/1000 μs surges. |
| Telecom Base Station Power Entry | Consumer Appliance SMPS Output Stage |
Use Scenario: Front-end surge suppression on -48 V telecom rectifier outputs exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on distributed power rail feeding RF amplifiers and backhaul processors. Use Value: AEC-Q101 qualification and 175 °C rating ensure stable performance in outdoor cabinets with wide ambient swings and limited airflow. | Use Scenario: Replacing crowbar circuits on 36–42 V SMPS outputs in premium home appliances (e.g., induction cooktops). IC Role / Device Role / Timing Role: Fast-acting TVS that clamps overvoltage without latching, allowing fuse/breaker coordination and system reset. Use Value: 5000 W rating eliminates need for redundant devices; 43 V VWM aligns precisely with regulated output tolerance bands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43AHE3/52 | 600 W peak power (vs. 5000 W); SMC package; same VWM and VC but lower IPPM (38.4 A). | Suitable only for low-energy transients (IEC 61000-4-2 ESD, not IEC 61000-4-5 surge). | Select when board space is constrained and surge threat level is limited to ±8 kV contact ESD. |
| 5KP43A-E3/54 | Same electrical specs but commercial-grade (non-AEC-Q101); identical P600 package and RoHS compliance (E3 vs. HE3). | Lacks automotive qualification; not approved for safety-critical vehicle subsystems. | Choose for cost-sensitive industrial or telecom applications where AEC-Q101 is not mandated. |
Compared with SMBJ43AHE3/52 and 5KP43A-E3/54, the 5KP43HE3/54 uniquely combines automotive-grade reliability, 5000 W surge capacity, and 43 V precision clamping-making it the only option qualified for under-hood 48 V power rail protection without design compromise.
Availability
5KP43HE3/54 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial motor drive inputs, and telecom base station power entry requiring stable component supply and long-term lifecycle support.
Supply support for 5KP43HE3/54 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 high-reliability and automotive-grade performance.
The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems, targeting replacement of crowbar circuits while enabling fuse/breaker coordination and thermal survivability in harsh environments.
FAQ
What is the clamping voltage of the 5KP43HE3/54 under maximum rated surge current?
The 5KP43HE3/54 has a maximum clamping voltage (VC) of 69.4 V at 72 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The 5KP43HE3/54 maintains this clamping performance across its qualified temperature range and is validated per AEC-Q101 stress tests.
Is the 5KP43HE3/54 suitable for bidirectional surge protection applications?
No, the 5KP43HE3/54 is unidirectional only, as confirmed in the Vishay datasheet. It conducts in reverse breakdown above VBR but blocks forward current beyond ~3.5 V. For AC or bipolar transient protection, a dedicated bidirectional TVS such as 5KP43CA must be used. Using the 5KP43HE3/54 in bidirectional configurations risks forward conduction and thermal failure during positive half-cycles.
What does the "HE3" suffix indicate in 5KP43HE3/54?
Per Vishay's ordering nomenclature, the "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. This distinguishes it from the "E3" variant (RoHS-compliant but commercial grade). The 5KP43HE3/54 is therefore certified for automotive applications requiring extended temperature operation, vibration resilience, and long-term reliability validation.
Can the 5KP43HE3/54 replace a 5KP43A-E3/54 in an existing design?
Yes, the 5KP43HE3/54 is a direct drop-in replacement for the 5KP43A-E3/54 in terms of pinout, package (P600), and all electrical parameters-including VWM, VBR, VC, and IPPM. The only difference is the AEC-Q101 qualification and enhanced whisker resistance of the HE3 version. No PCB layout or schematic changes are required when upgrading from E3 to HE3 for automotive deployment.
What is the maximum allowable lead temperature during soldering for the 5KP43HE3/54?
The 5KP43HE3/54 supports solder dip at a maximum temperature of 275 °C for up to 10 seconds, per JESD 22-B106. This specification applies to wave soldering processes. Reflow profiles must comply with JEDEC J-STD-020 moisture sensitivity level (MSL) requirements; though not explicitly rated in the datasheet, the P600 package is typically MSL 1. Always verify thermal profile against Vishay's latest assembly guidelines before production.
5KP43HE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- P600, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 43V
- Voltage - Breakdown (Min):
- 47.8V
- Voltage - Clamping (Max) @ Ipp:
- 76.7V
- Current - Peak Pulse (10/1000µs):
- 65.2A
- Power - Peak Pulse:
- 5000W (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:
- P600
5KP43HE3/54 FAQ
1.How can I place an order for 5KP43HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP43HE3/54 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 5KP43HE3/54 reliable?
The price and inventory of 5KP43HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP43HE3/54 is usually 5 days.
3.What payment methods are accepted for 5KP43HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP43HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP43HE3/54?
5KP43HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP43HE3/54 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 5KP43HE3/54?
For technical support, including 5KP43HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP43HE3/54 requirements.
6.How does Aetrix verify that 5KP43HE3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP43HE3/54 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 5KP43HE3/54 meets industry standards.
7.What is the process for return or replacement of 5KP43HE3/54?
All 5KP43HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP43HE3/54, 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 5KP43HE3/54 part is unused and in its original packaging.
Return procedure for 5KP43HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP43HE3/54 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
