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Vishay General Semiconductor - Diodes Division P6KE440-E3/54
- Part No.:
- P6KE440-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE440-E3/54.pdf
- Description:
- TVS DIODE 356VWM 631VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:7,157
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Product details
Overview
P6KE440-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for overvoltage protection in DC power lines and signal paths. It features a 440 V breakdown voltage (VBR min = 418 V, max = 462 V), 376 V standoff voltage (VWM), 600 W peak pulse power rating (10/1000 µs), and clamps transients to ≤602 V at 1.0 A peak pulse current - deployed in automotive power supply rails and industrial sensor interfaces.
For engineers reviewing the P6KE440-E3/54 datasheet, P6KE440-E3/54 pinout, P6KE440-E3/54 application, or P6KE440-E3/54 equivalent, this page delivers verified electrical parameters, DO-204AC package details, bi-directional vs. unidirectional polarity clarification, thermal derating curves, and AEC-Q101 qualification status relevant to high-reliability transient suppression design.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: when reverse-biased voltage exceeds VBR, it avalanches into low-impedance conduction, diverting surge current away from downstream ICs. Its glass-passivated junction ensures stable breakdown characteristics and fast response (<1 ns), while the 20 °C/W junction-to-lead thermal resistance supports sustained surge handling under defined PCB trace heatsinking.
The device complies with IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT) immunity requirements when applied per layout guidelines. It is rated for 100 A non-repetitive forward surge (8.3 ms half-sine) and exhibits 0.110 %/°C temperature coefficient of VBR, enabling predictable clamping behavior across –55 °C to +175 °C operating range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 418 V / 462 V at 1.0 mA test current - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 376 V - maximum continuous reverse working voltage before leakage exceeds 1.0 µA, sets safe DC bias margin |
| VC @ IPPM | ≤602 V at 1.0 A peak pulse - clamping voltage under standardized 10/1000 µs surge, determines protected circuit stress level |
| PPPM | 600 W - peak pulse power dissipation capability, enables robust protection against lightning-induced surges and inductive switching spikes |
| TJ max | +175 °C - maximum junction temperature, supports operation in under-hood automotive and high-ambient industrial environments |
| RθJL | 20 °C/W - junction-to-lead thermal resistance, informs minimum copper area required on PCB for thermal management |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per JESD47 |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, molded epoxy case meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 1A whisker resistance (E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration; conducts during positive transients when cathode is biased higher |
| Cathode | Avalanche clamping terminal | Marked with color band; connected to protected line (e.g., 24 V rail); avalanches when reverse voltage exceeds VBR, shunting surge to anode |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable, repeatable breakdown voltage with minimal drift over time and temperature - critical for long-life automotive modules |
| 600 W peak pulse power (10/1000 µs) | Handles high-energy transients from load dump or relay coil de-energization without degradation - suitable for 12 V/24 V vehicle systems |
| Fast response time (<1 ns) | Clamps voltage before sensitive logic or analog circuitry sustains damage - protects microcontrollers, CAN transceivers, and sensor front-ends |
| AEC-Q101 qualification | Validated for automotive under-hood use including thermal shock, humidity bias, and accelerated life testing - reduces qualification burden for Tier 1 suppliers |
| RoHS-compliant (E3 suffix) | Meets EU Directive 2011/65/EU with lead-free matte tin plating - supports global manufacturing compliance without performance trade-offs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Suppresses load-dump transients (up to 60 V, 400 ms) and ISO 7637-2 pulses on 24 V battery-fed ECUs. IC Role / Device Role / Timing Role: Shunt TVS placed between power rail and chassis ground, triggered within nanoseconds to clamp voltage below MOSFET drain-source breakdown. Use Value: Prevents catastrophic failure of power management ICs and gate drivers by limiting rail voltage to ≤602 V during 1.0 A surge events. |
Use Scenario: Shields 4–20 mA current-loop transmitters and RS-485 nodes from ESD and induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Unidirectional clamping element on signal line input, referenced to local ground; absorbs ±8 kV contact ESD per IEC 61000-4-2. Use Value: Maintains signal integrity by holding differential voltage across receiver inputs below 3.3 V tolerance limit during fast transients. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Guards AC/DC adapter outputs and PoE-powered equipment inputs against lightning-induced surges on telecom infrastructure. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side DC bus, coordinated with upstream MOVs and fuses to meet ITU-T K.20/21 immunity standards. Use Value: Limits let-through energy to <10 mJ during 600 W surges, preventing latch-up in PMICs and protecting isolated feedback optocouplers. |
Use Scenario: Protects BLDC motor controller gate drivers from inductive kickback generated by brushed motor commutation in white goods. IC Role / Device Role / Timing Role: Reverse-biased across motor winding terminals or across high-side FET drain-source, conducting only during negative voltage excursions. Use Value: Clamps flyback spikes to ≤602 V, avoiding gate oxide rupture in 600 V-rated MOSFETs and extending driver IC lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ440A | Same VBR range (418–462 V) but SMC package (DO-214AB); 400 W PPPM; RθJA = 40 °C/W vs. 75 °C/W for P6KE440-E3/54 | Higher power density but requires surface-mount assembly; less suited for through-hole prototyping or high-vibration mechanical retention | Select SMAJ440A for space-constrained PCBs where thermal vias support SMC package cooling; retain P6KE440-E3/54 for legacy through-hole designs or manual rework scenarios. |
| 1.5KE440A | Same DO-204AC package and 600 W rating, but higher leakage (5.0 µA vs. 1.0 µA at VWM) and no AEC-Q101 qualification | Approved for commercial/industrial use only; not validated for automotive temperature cycling or humidity bias stress | Choose 1.5KE440A for cost-sensitive non-automotive applications where qualification overhead is unnecessary; prefer P6KE440-E3/54 when AEC-Q101 compliance is contractually mandated. |
Compared with SMAJ440A and 1.5KE440A, P6KE440-E3/54 uniquely combines AEC-Q101 qualification, 1.0 µA max leakage at 376 V, and axial-leaded DO-204AC packaging - making it the only option qualified for automotive under-hood deployment with manual assembly compatibility and low standby power impact.
Availability
P6KE440-E3/54 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, telecom DC input safeguarding, and consumer appliance motor drive circuits requiring stable component supply across multi-year production cycles.
Supply support for P6KE440-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6KE series belongs to Vishay's TRANSZORB® TVS family, engineered for cost-effective, high-surge-capability transient suppression in commercial and automotive power and signal lines - balancing performance, qualification, and manufacturability.
FAQ
What is the polarity configuration of P6KE440-E3/54?
P6KE440-E3/54 is a unidirectional TVS diode, meaning it functions as a reverse-biased avalanche clamp. The cathode (marked with a color band) connects to the protected line, while the anode connects to ground or the lower-potential reference. Unlike bi-directional variants (e.g., P6KE440CA), it does not conduct during positive transients on the anode side. This configuration is confirmed in the Vishay datasheet Document Number 88369, Section "Polarity".
Does P6KE440-E3/54 meet automotive reliability standards?
Yes, P6KE440-E3/54 is AEC-Q101 qualified, as explicitly stated in the Vishay datasheet revision 18-Sep-12 (Document Number 88369, Note 1). This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), validating its suitability for under-hood automotive applications such as body control modules and power distribution units.
What is the maximum clamping voltage of P6KE440-E3/54 under surge conditions?
The maximum clamping voltage (VC) of P6KE440-E3/54 is 602 V at a peak pulse current (IPPM) of 1.0 A with a 10/1000 µs waveform. This value is specified in the "ELECTRICAL CHARACTERISTICS" table on page 2 of the Vishay datasheet (Document Number 88369) and represents the upper bound of voltage seen by downstream components during a standardized surge event.
How does the thermal performance of P6KE440-E3/54 affect PCB layout?
P6KE440-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, meaning effective heat transfer relies on adequate copper land area connected to both leads. For repeated surge events, PCB traces should provide ≥25 mm² of 2-oz copper per lead to maintain junction temperature below 175 °C. This requirement is derived from Figure 5 ("Power Derating Curve") and the "THERMAL CHARACTERISTICS" table in the Vishay datasheet.
Is P6KE440-E3/54 RoHS-compliant and halogen-free?
Yes, P6KE440-E3/54 carries the E3 suffix, indicating RoHS compliance per Directive 2011/65/EU and adherence to JEDEC JS709A halogen-free standards. The datasheet confirms matte tin-plated leads and UL 94 V-0 molding compound, with full material declarations available in Vishay's "Material Categorization" documentation (www.vishay.com/doc?99912).
P6KE440-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 356V
- Voltage - Breakdown (Min):
- 396V
- Voltage - Clamping (Max) @ Ipp:
- 631V
- Current - Peak Pulse (10/1000µs):
- 950mA
- Power - Peak Pulse:
- 600W
- 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-204AC (DO-15)
P6KE440-E3/54 FAQ
1.How can I place an order for P6KE440-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE440-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 P6KE440-E3/54 reliable?
The price and inventory of P6KE440-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 P6KE440-E3/54 is usually 5 days.
3.What payment methods are accepted for P6KE440-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE440-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE440-E3/54?
P6KE440-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE440-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 P6KE440-E3/54?
For technical support, including P6KE440-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE440-E3/54 requirements.
6.How does Aetrix verify that P6KE440-E3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE440-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 P6KE440-E3/54 meets industry standards.
7.What is the process for return or replacement of P6KE440-E3/54?
All P6KE440-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE440-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 P6KE440-E3/54 part is unused and in its original packaging.
Return procedure for P6KE440-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE440-E3/54 Tags
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