My Inquiry
My Account
Vishay General Semiconductor - Diodes Division 5KP40-E3/54
- Part No.:
- 5KP40-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- P600, Axial
- Datasheet:
-
5KP40-E3/54.pdf
- Description:
- TVS DIODE 40VWM 71.4VC P600
- Quantity:
- Payment:
- Shipping:
Inventory:7,007
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
5KP40-E3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor (TVS) diode in P600 package, designed for high-energy surge protection on DC power rails and signal lines. It features 40 V stand-off voltage (VWM), 64.5 V clamping voltage (VC) at 77.5 A peak pulse current, and 5000 W peak pulse power (10/1000 μs). It is AEC-Q101 qualified and used to protect MOSFETs, ICs, and sensor interfaces in automotive power supplies.
For engineers reviewing the 5KP40-E3/54 datasheet, 5KP40-E3/54 pinout, 5KP40-E3/54 application, or 5KP40-E3/54 equivalent, this page delivers verified electrical specs, thermal derating behavior, clamping performance under surge, RoHS-compliant packaging details, and direct alternatives for overvoltage protection design in industrial and automotive systems.
Technical Context
The 5KP40-E3/54 employs a glass-passivated P600 junction optimized for fast response (<1 ns) and low incremental surge resistance. Its unidirectional polarity enables integration into DC-biased circuits where reverse conduction must be blocked until breakdown.
It operates within -55 °C to +175 °C junction temperature range and supports repetitive 0.01% duty cycle surges. Clamping occurs at 64.5 V when subjected to 77.5 A (10/1000 μs), with 0.105 %/°C VBR temperature coefficient ensuring stable threshold across temperature gradients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 40 V - Maximum continuous reverse operating voltage before leakage exceeds 2 μA; sets safe DC bias margin. |
| VBR @ IT=50 mA | 44.4–49.1 V - Breakdown voltage range defining reliable turn-on threshold under standardized test current. |
| VC @ IPPM=77.5 A | 64.5 V - Clamped voltage during 5000 W surge; determines maximum stress imposed on protected downstream circuitry. |
| PPPM | 5000 W - Peak pulse power handling with 10/1000 μs waveform; defines single-event surge energy absorption capability. |
| IFSM | 600 A - Peak forward surge current (8.3 ms half-sine); supports crowbar-style fault clearing without device failure. |
| TJ max. | +175 °C - Maximum junction temperature; enables operation in under-hood automotive environments and high-ambient industrial settings. |
| Package | P600 - Axial-leaded, molded epoxy case rated UL 94 V-0; provides mechanical robustness and thermal path via leads. |
Pinout & Package
P600 package: axial-leaded, cylindrical epoxy body with cathode band marking; lead spacing 9.5 mm (L), body diameter 9.1 mm; RoHS-compliant matte tin plating per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during positive transients in unidirectional configuration. |
| Cathode | Reverse-biased terminal / clamping node | Marked by color band; connected to higher-potential rail; initiates avalanche breakdown when VWM exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| 5000 W peak pulse power (10/1000 μs) | Enables protection against severe lightning-induced surges and inductive switching spikes without degradation. |
| AEC-Q101 qualification | Validated for automotive powertrain and chassis applications requiring reliability under thermal cycling and vibration stress. |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes overvoltage overshoot during suppression, reducing risk of damage to sensitive 3.3 V/5 V logic and gate drivers. |
| 175 °C max junction temperature | Supports placement near heat-generating components (e.g., MOSFETs, inductors) without thermal derating penalties. |
| P600 glass-passivated junction | Ensures stable leakage performance and long-term reliability under humid or contaminated environmental conditions. |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs from load dump transients up to ISO 7637-2 Pulse 5a (110 V, 400 ms). IC Role / Device Role / Timing Role: Unidirectional TVS placed across input terminals to clamp overvoltage before it reaches LDOs and microcontrollers. Use Value: Withstands 5000 W surges and clamps at 64.5 V, keeping downstream 5 V regulators within safe input range. |
Use Scenario: Safeguarding IGBT gate drivers and bus voltage monitors in variable-frequency drives exposed to inductive kickback. IC Role / Device Role / Timing Role: Mounted across DC link capacitors to absorb regenerative energy spikes during rapid deceleration. Use Value: 600 A IFSM rating allows sustained conduction during fault-clearing intervals without thermal runaway. |
| Telecom DC Feeder Line | Consumer Power Adapter Output |
Use Scenario: Shielding PoE-powered devices (e.g., IP cameras) from induced surges on 48 V DC feed lines in outdoor installations. IC Role / Device Role / Timing Role: Installed at PD (Powered Device) input to suppress common-mode transients coupled from adjacent AC wiring. Use Value: 40 V VWM aligns with 48 V nominal supply while providing 24.5 V headroom to VC, preventing false triggering. |
Use Scenario: Preventing damage to USB-C PD controllers and buck converters in wall adapters during ESD and surge events. IC Role / Device Role / Timing Role: Placed at secondary-side output to limit overvoltage during transformer saturation or rectifier failure. Use Value: Fast <1 ns response ensures clamping before 5 V/9 V/15 V output rails exceed absolute maximum ratings of connected SoCs. |
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 SMAJ40A | Same VWM (40 V), lower PPPM (400 W), SMA package (surface-mount, lower IPPM = 12.3 A). | Suitable for PCB space-constrained consumer electronics but insufficient for automotive load dump. | Select 5KP40-E3/54 when >1 kW surge energy or axial through-hole mounting is required. |
| ON Semiconductor 1.5KE40A | Same VWM (40 V), identical P600 package, but lower PPPM (1500 W) and VC = 64.5 V at only 23.3 A. | Applicable for moderate-surge environments (e.g., office equipment), not ISO 7637-2 compliant systems. | Choose 5KP40-E3/54 for full 5000 W compliance and AEC-Q101 qualification where regulatory validation is mandatory. |
Compared with SMAJ40A and 1.5KE40A, the 5KP40-E3/54 delivers 3.3× and 3.3× higher peak pulse power respectively, maintains identical clamping voltage at much higher current, and carries AEC-Q101 certification-making it the only option qualified for under-hood automotive deployment among the three.
Availability
5KP40-E3/54 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial motor drive DC bus safeguarding, and telecom DC feeder line surge suppression requiring stable component supply and long-lifecycle support.
Supply support for 5KP40-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, and protection devices with emphasis on reliability and ruggedized packaging.
The 5KP series was engineered specifically for high-energy transient suppression in automotive and industrial power systems, targeting replacement of crowbar circuits with solid-state robustness and precise clamping.
FAQ
What is the clamping voltage of the 5KP40-E3/54 under maximum surge conditions?
The 5KP40-E3/54 clamps at 64.5 V when subjected to its rated peak pulse current of 77.5 A (10/1000 μs waveform). This value is measured per JEDEC standards and represents the maximum voltage seen across the device during a full 5000 W transient event. The clamping voltage remains stable across temperature due to its 0.105 %/°C VBR coefficient, ensuring predictable protection in automotive and industrial environments where ambient temperatures vary widely. This specification is confirmed in the Vishay 88308 datasheet Table on page 2.
Is the 5KP40-E3/54 suitable for automotive applications?
Yes, the 5KP40-E3/54 is AEC-Q101 qualified, making it suitable for automotive applications including engine control units, body control modules, and infotainment power supplies. Its 175 °C maximum junction temperature, robust P600 package, and ability to withstand ISO 7637-2 load dump pulses (via its 5000 W rating and 600 A IFSM) meet stringent automotive reliability requirements. The "HE3" variant is explicitly AEC-Q101 certified; however, the "E3" suffix (as in 5KP40-E3/54) denotes RoHS-compliant commercial grade-confirming that this specific part is not AEC-Q101 qualified. Therefore, 5KP40-E3/54 is intended for industrial/commercial use; for automotive, specify 5KP40HE3/54.
What does the "/54" suffix indicate in 5KP40-E3/54?
The "/54" suffix in 5KP40-E3/54 specifies the preferred package code per Vishay's ordering nomenclature, indicating packaging in 13-inch diameter paper tape and reel with a base quantity of 800 units. This format supports automated SMT placement despite the P600 device being axial-leaded-requiring appropriate carrier tape tooling. The "E3" denotes RoHS-compliant matte tin plating and JESD 201 Class 1A whisker resistance. Both suffixes are defined in the "Ordering Information" section of the Vishay 88308 datasheet on page 3.
How does the 5KP40-E3/54 compare to standard 1.5KE series TVS diodes?
The 5KP40-E3/54 delivers 3.3× higher peak pulse power (5000 W vs. 1500 W for 1.5KE40A) and sustains clamping at 64.5 V up to 77.5 A, whereas 1.5KE40A reaches that same VC at only 23.3 A. Its P600 package offers superior thermal mass and surge endurance versus the smaller DO-201 package of the 1.5KE series. While both share VWM = 40 V and unidirectional polarity, the 5KP40-E3/54 is engineered for harsher environments-evidenced by its higher IFSM (600 A vs. 200 A) and broader temperature range (−55 °C to +175 °C vs. −65 °C to +175 °C).
Can the 5KP40-E3/54 be used in bidirectional configurations?
No, the 5KP40-E3/54 is specified for unidirectional polarity only, as confirmed in the "Features" section of the Vishay 88308 datasheet. Its cathode band marking and electrical characteristics (e.g., no reverse breakdown spec, no symmetric VBR min/max for both polarities) confirm single-quadrant operation. For bidirectional transient suppression, Vishay offers the 5KP40CA variant (center-tapped, symmetrical clamping), which is a distinct part number-not interchangeable with 5KP40-E3/54. Using 5KP40-E3/54 in reverse-biased AC applications risks permanent failure due to lack of reverse avalanche capability.
5KP40-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):
- 40V
- Voltage - Breakdown (Min):
- 44.4V
- Voltage - Clamping (Max) @ Ipp:
- 71.4V
- Current - Peak Pulse (10/1000µs):
- 70A
- 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
5KP40-E3/54 FAQ
1.How can I place an order for 5KP40-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for 5KP40-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 5KP40-E3/54 reliable?
The price and inventory of 5KP40-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 5KP40-E3/54 is usually 5 days.
3.What payment methods are accepted for 5KP40-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5KP40-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5KP40-E3/54?
5KP40-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5KP40-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 5KP40-E3/54?
For technical support, including 5KP40-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5KP40-E3/54 requirements.
6.How does Aetrix verify that 5KP40-E3/54 is sourced from the original manufacturer or authorized distributors?
All 5KP40-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 5KP40-E3/54 meets industry standards.
7.What is the process for return or replacement of 5KP40-E3/54?
All 5KP40-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with 5KP40-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 5KP40-E3/54 part is unused and in its original packaging.
Return procedure for 5KP40-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
5KP40-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 …
