My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 5KP43-E3/54
- Part No.:
- 5KP43-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP43-E3/54.pdf
- Description:
- TVS DIODE 43VWM 76.7VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:2,366
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
5KP43-E3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge clamping on power rails and signal lines. It features 43 V stand-off voltage (VWM), 47.8–52.8 V breakdown voltage (VBR) at 5 mA, 69.4 V maximum clamping voltage (VC) at 72 A peak pulse current (IPPM), and 5000 W peak pulse power (10/1000 μs). It is AEC-Q101 qualified and used to protect MOSFETs and ICs in automotive power supplies.
For engineers reviewing the 5KP43-E3/54 datasheet, 5KP43-E3/54 pinout, 5KP43-E3/54 application, or 5KP43-E3/54 equivalent, this page delivers verified electrical parameters, clamping behavior under surge conditions, thermal derating curves, RoHS-compliant packaging details, and direct alternatives with documented voltage and power differences.
Technical Context
The 5KP43-E3/54 operates as a unidirectional avalanche diode, leveraging glass-passivated P600 junction technology for stable breakdown and low incremental surge resistance. Its 10/1000 μs waveform response enables reliable suppression of lightning-induced transients and inductive switching spikes up to 5000 W.
It exhibits a temperature coefficient of VBR at 0.105 %/°C and supports operating junction temperatures from –55 °C to +175 °C. The device is rated for 600 A non-repetitive forward surge current (IFSM) and maintains ≤2.0 μA reverse leakage at 43 V (VWM).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 43 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC rail margin. |
| VBR min/max | 47.8 V / 52.8 V at 5 mA - Confirmed avalanche onset range; ensures predictable turn-on across production lot. |
| VC @ IPPM | 69.4 V at 72 A - Clamped voltage during 10/1000 μs surge; determines protected circuit's maximum overvoltage exposure. |
| PPPM | 5000 W - Peak pulse power handling capability; validates suitability for IEC 61000-4-5 Level 4 surges. |
| IFSM | 600 A - Single half-sine surge rating (8.3 ms); supports fuse/breaker coordination without device failure. |
| TJ max | +175 °C - Maximum junction temperature; enables use in under-hood automotive environments with minimal heatsinking. |
| Polarity | Unidirectional - Cathode marked by band; requires correct orientation in series with positive supply rails. |
Pinout & Package
P600 package: axial-leaded, molded epoxy body with matte tin-plated leads; UL 94 V-0 rated; cathode indicated by color band; RoHS-compliant (E3 suffix); 2.776 g unit weight; supplied in 13" paper tape and reel (800 pcs per reel, code 54).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to ground or low-side return path; must be routed with low-inductance trace for effective clamping. |
| Cathode | Current exit point during reverse-biased clamping | Connected to protected line (e.g., 48 V rail); color band identifies this terminal for correct PCB placement. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Enables single-device protection against severe industrial and automotive transients without parallel staging. |
| AEC-Q101 qualification | Validates reliability for automotive powertrain and body electronics applications per stress-test requirements. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage overshoot during surge events, reducing stress on downstream MOSFET gate oxides and IC inputs. |
| P600 glass-passivated junction | Delivers stable VBR over lifetime and temperature, with <2.0 μA leakage at VWM for low standby power impact. |
| Solderable per J-STD-002/JESD 22-B102 | Ensures robust lead termination integrity during reflow and wave soldering processes in high-volume manufacturing. |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs against load dump and alternator transients per ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and ground, clamping within nanoseconds to limit voltage to ≤69.4 V. Use Value: Prevents permanent damage to buck converters and CAN transceivers by holding rail voltage below 70 V during 100 V/100 ms surges. |
Use Scenario: Safeguarding IGBT gate drivers and bus capacitors in variable-frequency drives subjected to inductive kickback. IC Role / Device Role / Timing Role: Mounted across DC link (e.g., 300–400 V nominal), activated only during overvoltage events exceeding VWM. Use Value: Absorbs up to 5000 W surge energy without degradation, eliminating need for crowbar SCR circuits and enabling resettable protection. |
| Telecom Power Rectifier Output | Consumer PSU Overvoltage Clamp |
Use Scenario: Clamping output of telecom rectifiers (–48 V system) against lightning-induced common-mode surges on feed lines. IC Role / Device Role / Timing Role: Cathode tied to –48 V rail, anode to chassis ground; conducts only during negative-going transients. Use Value: Maintains ≤2.0 μA leakage at –43 V, ensuring no impact on system efficiency while clamping to –69.4 V. |
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters for smart home devices, preventing fire hazard during feedback loop failure. IC Role / Device Role / Timing Role: Placed across +12 V output capacitor, triggered when regulation fails and voltage rises beyond 43 V. Use Value: Limits fault voltage to 69.4 V for <1 ms, allowing fuse blow time while protecting USB-PD controllers and sensors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ43A | Same VWM (43 V), lower PPPM (400 W), SMA package (surface-mount, 0.5 W PD) | Not suitable for 5000 W surge events; limited to low-energy signal-line protection | Select 5KP43-E3/54 when >1 kW surge energy must be absorbed; choose SMAJ43A only for space-constrained, low-power signal paths. |
| Vishay 5KP45A-E3/54 | Higher VWM (45 V), slightly higher VBR (50.0–55.3 V), identical P600 package and 5000 W rating | Provides 2 V higher standoff margin; may reduce false triggering in noisy 48 V systems | Use 5KP43-E3/54 where exact 43 V threshold is required by design spec; select 5KP45A-E3/54 if additional VWM margin improves system immunity. |
Compared with SMAJ43A, the 5KP43-E3/54 delivers 12.5× higher surge power handling and axial-leaded mounting for high-current thermal dissipation; versus 5KP45A-E3/54, it offers tighter VWM alignment for legacy 43 V rail designs without sacrificing clamping performance or package compatibility.
Availability
5KP43-E3/54 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial motor drive DC bus clamping, and telecom rectifier output surge suppression requiring stable component supply across extended production lifecycles.
Supply support for 5KP43-E3/54 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, TVS devices, and optoelectronics with emphasis on reliability and automotive-grade qualification.
The 5KP series was engineered specifically for high-power transient suppression in harsh-environment power systems, targeting ISO 7637-2 and IEC 61000-4-5 compliance without external heat sinking.
FAQ
What is the clamping voltage of the 5KP43-E3/54 under a standard 10/1000 μs surge?
The 5KP43-E3/54 clamps to a maximum of 69.4 V when subjected to its rated 72 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is guaranteed per JEDEC test conditions and represents the upper limit of voltage seen by protected circuitry during surge events. The 5KP43-E3/54 achieves this with low incremental surge resistance, ensuring consistent clamping across temperature and aging.
Is the 5KP43-E3/54 suitable for automotive applications?
Yes, the 5KP43-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its –55 °C to +175 °C operating junction temperature range, robust P600 package, and validated surge performance per ISO 7637-2 make it appropriate for protecting ECUs, body control modules, and ADAS power supplies. The 5KP43-E3/54 meets automotive reliability screening requirements without derating.
How does the 5KP43-E3/54 differ from the 5KP43A-E3/54?
The part number 5KP43-E3/54 is the correct and complete designation per Vishay's ordering information; "5KP43A-E3/54" is not a valid variant in the 5KP5.0A–5KP188A family datasheet. All devices in this series use the "5KPxxA" format (e.g., 5KP43A), so 5KP43-E3/54 is functionally and electrically identical to 5KP43A-E3/54 - the "A" denotes 5% VBR tolerance and is implied in the full manufacturer part number. The 5KP43-E3/54 data sheet confirms VBR = 47.8–52.8 V.
What is the maximum reverse leakage current of the 5KP43-E3/54 at its stand-off voltage?
At its 43 V stand-off voltage (VWM) and TA = 25 °C, the 5KP43-E3/54 exhibits a maximum reverse leakage current (ID) of 2.0 μA. This low leakage ensures minimal power loss in always-on systems and avoids unintended biasing of sensitive analog circuits. The 5KP43-E3/54 maintains this specification across its full operating temperature range, with leakage increasing predictably above 25 °C per published derating curves.
Can the 5KP43-E3/54 be used in bidirectional configurations?
No, the 5KP43-E3/54 is unidirectional only, as confirmed in the Vishay datasheet features section and polarity specification. It conducts in reverse breakdown (cathode-to-anode) but blocks forward current above ~3.5 V. For bidirectional protection, two 5KP43-E3/54 devices must be connected in series opposition, or a dedicated bidirectional TVS such as the 5KP43CA-E3/54 should be selected. Using a single 5KP43-E3/54 in bidirectional mode will fail to clamp positive transients.
5KP43-E3/54 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- P600
5KP43-E3/54 FAQ
1.How can I place an order for 5KP43-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP43-E3/54 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 5KP43-E3/54 reliable?
The price and inventory of 5KP43-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5KP43-E3/54 is usually 5 days.
3.What payment methods are accepted for 5KP43-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP43-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP43-E3/54?
5KP43-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP43-E3/54 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 5KP43-E3/54?
For technical support, including 5KP43-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP43-E3/54 requirements.
6.How does Aetrix verify that 5KP43-E3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP43-E3/54 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 5KP43-E3/54 meets industry standards.
7.What is the process for return or replacement of 5KP43-E3/54?
All 5KP43-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP43-E3/54, 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 5KP43-E3/54 part is unused and in its original packaging.
Return procedure for 5KP43-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP43-E3/54 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 …
