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Vishay General Semiconductor - Diodes Division P4KE440A-E3/54
- Part No.:
- P4KE440A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE440A-E3/54.pdf
- Description:
- TVS DIODE 376VWM 602VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,497
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Product details
Overview
P4KE440A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients up to 602 V at 0.66 A peak pulse current. It features 400 W peak pulse power (10/1000 μs), 376 V stand-off voltage, and 418–462 V breakdown voltage range at 1 mA test current. Used to protect MOSFETs and ICs against inductive switching surges in industrial power supplies.
For engineers reviewing the P4KE440A-E3/54 datasheet, P4KE440A-E3/54 pinout, P4KE440A-E3/54 application, or P4KE440A-E3/54 equivalent, key selection criteria include clamping voltage (602 V), standoff voltage (376 V), unidirectional polarity, DO-41 mechanical compatibility, and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
This TVS diode operates as a voltage-clamping protection device in series with sensitive downstream circuitry, activating when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable avalanche characteristics and low incremental surge resistance under repetitive transient stress.
The device complies with JEDEC standards for surge robustness (10/1000 μs waveform), supports 40 A IFSM forward surge rating, and maintains operation across -55 °C to +175 °C junction temperature range. Thermal resistance is specified at 66 °C/W (junction-to-lead) and 100 °C/W (junction-to-ambient).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 376 V - Maximum continuous reverse operating voltage before clamping begins |
| Breakdown Voltage (VBR) | 418–462 V at 1 mA - Confirmed avalanche conduction onset range for reliable triggering |
| Clamping Voltage (VC) | 602 V at 0.66 A IPPM - Peak voltage seen by protected circuit during worst-case transient |
| Peak Pulse Power (PPPM) | 400 W (10/1000 μs) - Surge energy handling capacity without degradation |
| Package | DO-41 (DO-204AL) - Standard axial-leaded through-hole package with UL 94 V-0 epoxy body |
| Operating Temperature | -55 °C to +175 °C - Validated junction temperature range for industrial and automotive environments |
| Qualification | AEC-Q101 qualified - Certified for automotive electronic systems per stress-test requirements |
Pinout & Package
DO-41 (DO-204AL) package with axial leads: cathode indicated by color band on one end; anode is unmarked lead. Matte tin-plated leads meet J-STD-002 solderability and JESD 201 class 1A whisker resistance requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked lead) | Forward current entry / Reverse voltage reference | Connected to ground or lower-potential node in unidirectional clamp configuration |
| Cathode (banded lead) | Avalanche conduction terminal | Connected to line or signal being protected; conducts during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures consistent avalanche behavior and long-term stability under repeated surge stress |
| 400 W peak pulse power (10/1000 μs) | Supports high-energy transient suppression in motor drives and power supply inputs |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response time) |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control and body electronics |
| UL 94 V-0 molded epoxy case | Provides flame-retardant mechanical protection in enclosed industrial enclosures |
Applications
| Industrial Motor Drives | Automotive Power Distribution |
|---|---|
Use Scenario: Protection of gate drivers and IGBTs against inductive kickback from DC motors and solenoids. IC Role / Device Role / Timing Role: Unidirectional voltage clamp placed across DC bus or gate drive lines. Use Value: Limits transient voltage to ≤602 V, preventing gate oxide rupture and ensuring >100,000 surge cycles per MIL-STD-883H Method 3015. |
Use Scenario: Input surge protection for body control modules (BCMs) exposed to load dump and jump-start conditions. IC Role / Device Role / Timing Role: Primary front-end TVS in 12 V/24 V automotive power rail. Use Value: Withstands ISO 7637-2 Pulse 5a (load dump) up to 60 V/350 ms and meets AEC-Q101 stress screening requirements. |
| Telecom Power Supplies | Consumer Appliance Control Boards |
Use Scenario: Secondary-side transient suppression on AC/DC adapter outputs feeding baseband processors. IC Role / Device Role / Timing Role: Standoff-rated clamping device on +5 V or +12 V output rails. Use Value: Maintains 376 V standoff while clamping to 602 V, enabling compatibility with wide-input telecom rectifiers and reducing need for upstream filtering. |
Use Scenario: Overvoltage protection for microcontroller I/O pins connected to external sensors in washing machines and HVAC systems. IC Role / Device Role / Timing Role: Point-of-load TVS on analog sensor inputs and communication lines (e.g., I²C). Use Value: Low leakage (<1 μA at 376 V) prevents signal distortion; DO-41 footprint allows manual rework and cost-effective through-hole assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ440A | Surface-mount SMB package; same 440 V nominal breakdown but 6.5 mm × 3.5 mm footprint vs. DO-41 axial leads | Requires PCB redesign for SMT placement; better high-frequency response due to lower parasitic inductance | Select when board space is constrained and automated assembly is preferred over through-hole reliability |
| 1.5KE440A | Higher 1500 W peak pulse power rating; identical DO-41 package and 440 V breakdown, but larger die and higher clamping voltage (648 V) | Used where higher surge margin is required (e.g., outdoor telecom cabinets), but increases protected circuit voltage stress | Select when system-level surge testing exceeds IEC 61000-4-5 Level 4 and 602 V clamping is insufficient |
Compared with SMBJ440A and 1.5KE440A, the P4KE440A-E3/54 offers optimal balance of through-hole mechanical robustness, AEC-Q101 qualification, and 400 W surge capability in legacy-compatible DO-41 packaging-making it ideal for industrial upgrades and automotive service replacements where layout change is not feasible.
Availability
P4KE440A-E3/54 is available at Aetrix Electronics and suitable for industrial motor drives, automotive power distribution modules, and telecom power supplies requiring stable component supply with traceable sourcing and long-lifecycle support.
Supply support for P4KE440A-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and ruggedized performance.
The P4KE440A-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-energy transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the clamping voltage of the P4KE440A-E3/54 under maximum rated surge current?
The P4KE440A-E3/54 has a maximum clamping voltage (VC) of 602 V at 0.66 A peak pulse current (IPPM) using the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88365 and defines the upper voltage limit imposed on protected circuitry during transient events. The P4KE440A-E3/54 maintains this clamping performance across its full operating temperature range.
Is the P4KE440A-E3/54 suitable for automotive applications?
Yes, the P4KE440A-E3/54 is AEC-Q101 qualified per Vishay documentation, confirming compliance with stress tests for automotive-grade reliability including temperature cycling, humidity bias, and surge endurance. Its DO-41 package and 175 °C max junction temperature make it suitable for under-hood and power-distribution applications where the P4KE440A-E3/54 serves as primary transient suppression.
What does the "E3/54" suffix mean in P4KE440A-E3/54?
The "E3" suffix indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads meeting JESD 201 class 1A whisker resistance. The "/54" denotes the preferred package code for 13-inch paper tape and reel delivery containing 5500 units. This ordering format is standardized in Vishay's documentation and confirms the P4KE440A-E3/54 is supplied in industry-standard surface-mount-ready packaging despite its through-hole form factor.
How does the P4KE440A-E3/54 differ from bidirectional variants like P4KE440CA?
The P4KE440A-E3/54 is unidirectional, featuring a cathode band for polarity-sensitive placement in DC circuits, whereas P4KE440CA is bidirectional with no marking and symmetrical clamping in both directions. The P4KE440A-E3/54 has a 376 V stand-off voltage and 418–462 V breakdown range, while P4KE440CA shares the same breakdown but lacks forward voltage specification and is intended for AC line protection where polarity reversal occurs.
What thermal derating applies to the P4KE440A-E3/54 above 25 °C ambient?
The P4KE440A-E3/54 follows a linear derating curve starting at 25 °C: power dissipation decreases from 1.5 W at 25 °C to zero at 175 °C, per Figure 5 in Vishay document 88365. At 75 °C ambient, the device is rated for 1.0 W continuous dissipation. This derating directly impacts sustained surge repetition rate and must be applied when calculating duty cycle limits for the P4KE440A-E3/54 in thermally constrained enclosures.
P4KE440A-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 376V
- Voltage - Breakdown (Min):
- 418V
- Voltage - Clamping (Max) @ Ipp:
- 602V
- Current - Peak Pulse (10/1000µs):
- 660mA
- Power - Peak Pulse:
- 400W
- 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:
- DO-204AL (DO-41)
P4KE440A-E3/54 FAQ
1.How can I place an order for P4KE440A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE440A-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 P4KE440A-E3/54 reliable?
The price and inventory of P4KE440A-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 P4KE440A-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE440A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE440A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE440A-E3/54?
P4KE440A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE440A-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 P4KE440A-E3/54?
For technical support, including P4KE440A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE440A-E3/54 requirements.
6.How does Aetrix verify that P4KE440A-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE440A-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 P4KE440A-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE440A-E3/54?
All P4KE440A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE440A-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 P4KE440A-E3/54 part is unused and in its original packaging.
Return procedure for P4KE440A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE440A-E3/54 Tags
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