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Vishay General Semiconductor - Diodes Division P6KE440-E3/73
- Part No.:
- P6KE440-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE440-E3/73.pdf
- Description:
- TVS DIODE 356VWM 631VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,746
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Product details
Overview
P6KE440-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection of DC power rails and signal lines. It features a 440 V breakdown voltage (VBR min = 418 V, max = 462 V), 376 V standoff voltage (VWM), 600 W peak pulse power (10/1000 µs), and clamps to ≤602 V at 1.0 A peak pulse current - deployed in automotive power supply inputs, industrial motor drive gate drivers, and telecom line interface circuits.
For engineers reviewing the P6KE440-E3/73 datasheet, P6KE440-E3/73 pinout, P6KE440-E3/73 application, or P6KE440-E3/73 equivalent, key selection criteria include its DO-204AC (DO-15) axial package, unidirectional polarity with cathode band marking, AEC-Q101 qualification status, and thermal resistance (RθJL = 20 °C/W) critical for sustained surge duty in high-temperature environments.
Technical Context
This device operates as a silicon avalanche diode, leveraging glass-passivated junction technology to achieve sub-nanosecond response time and low incremental surge resistance. Its clamping behavior is defined by a tightly controlled VBR tolerance (±5 %) and temperature coefficient of +0.110 %/°C, ensuring predictable voltage limiting across -55 °C to +175 °C operating range.
The P6KE440-E3/73 sustains 100 A non-repetitive forward surge current (IFSM) at 8.3 ms half-sine, with maximum forward voltage of 5.0 V at 50 A, and dissipates 5.0 W continuously on infinite heatsink at TL = 75 °C. Its UL 94 V-0 epoxy molding and matte tin-plated leads comply with J-STD-002 solderability and JESD 201 Class 1A whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 376 V - Maximum continuous reverse working voltage before leakage exceeds 1.0 µA; sets upper limit for safe DC rail operation. |
| VBR (min/max) | 418 V / 462 V at 1.0 mA - Avalanche breakdown threshold range defining turn-on consistency under transient stress. |
| VC @ IPPM | ≤602 V at 1.0 A (10/1000 µs) - Clamped voltage during worst-case surge; determines protected circuit's maximum stress level. |
| PPPM | 600 W - Peak pulse power handling capacity; 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 enclosures. |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance; informs heatsinking requirement when mounting to PCB copper pour or chassis. |
| Package | DO-204AC (DO-15) - Axial-leaded, through-hole package with 0.300" lead spacing; compatible with standard wave-solder processes. |
Pinout & Package
DO-204AC (DO-15) molded epoxy package with axial leads. Cathode identified by color band on body; anode is unmarked lead. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to lower-potential side of protected line | Must be tied to ground or return path when protecting positive rail; defines unidirectional conduction direction. |
| Cathode | Current exit point in forward bias; marked with color band | Connected to protected line (e.g., +12 V rail); avalanche conduction occurs when cathode-to-anode voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Enables stable avalanche characteristics over lifetime and eliminates surface contamination sensitivity in humid environments. |
| 600 W peak pulse power (10/1000 µs) | Supports EN 61000-4-5 Level 4 (4 kV) surge immunity without derating in typical PCB layouts with <10 nH trace inductance. |
| AEC-Q101 qualified (E3 suffix variant) | Validated for automotive powertrain and body electronics applications requiring zero early-life failure and extended temperature cycling. |
| UL 94 V-0 flammability rating | Molding compound self-extinguishes within 10 seconds after flame removal - meets safety-critical enclosure requirements. |
| Low RθJL = 20 °C/W | Allows direct mounting to copper pour without external heatsink for intermittent surge events up to 1 pulse/minute. |
Applications
| Automotive Power Input Protection | Industrial Motor Drive Gate Driver |
|---|---|
|
Use Scenario: 12 V battery-fed ECU input subjected to load dump (ISO 7637-2 Pulse 5a, up to 60 V/100 ms) and alternator ripple. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converter input to limit transient voltage before regulation stage. Use Value: Clamps to ≤602 V during 10/1000 µs surges while maintaining 376 V DC hold-off - prevents MOSFET gate oxide rupture and regulator IC latch-up. |
Use Scenario: Isolated gate driver supply rail (e.g., +15 V) exposed to Miller-induced voltage spikes during IGBT switching in servo drives. IC Role / Device Role / Timing Role: Fast-response shunt protector parallel to gate driver output capacitor to suppress >100 ns dv/dt transients. Use Value: Sub-ns response time and low dynamic impedance limit overshoot to <10 % above rated gate voltage, preserving IGBT safe operating area. |
| Telecom Line Interface | Consumer Appliance Power Supply |
|
Use Scenario: RJ45 Ethernet port PHY-side DC bias rail (e.g., +3.3 V) vulnerable to ESD (IEC 61000-4-2 ±8 kV contact) and induced surges from nearby AC wiring. IC Role / Device Role / Timing Role: Secondary-level TVS placed after common-mode choke to protect PHY transceiver pins from differential-mode transients. Use Value: 1.0 µA leakage at 376 V ensures no impact on PHY bias stability; 600 W rating handles multiple ESD strikes without degradation. |
Use Scenario: AC-DC adapter primary-side bulk capacitor charging path in washing machine control board, exposed to mains-borne surges (IEC 61000-4-5). IC Role / Device Role / Timing Role: Overvoltage clamp across bridge rectifier output to prevent capacitor overvoltage and downstream SMPS controller damage. Use Value: 440 V VBR aligns with 380 V DC bus peak in universal-input designs; RoHS-compliant E3 suffix meets global regulatory compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ440A | Same VBR range (418–462 V), but SMC (DO-214AB) surface-mount package; 600 W rating; higher IPPM (1.02 A vs. 1.00 A) | Requires rework of PCB layout for SMD placement; better suited for automated assembly and space-constrained designs | Select SMBJ440A when board real estate is limited and wave-soldering is not required. |
| 1.5KE440A | Same DO-204AC package and VBR, but 1500 W peak power (10/1000 µs); higher VC (648 V); larger case volume | Used where higher single-event energy absorption is needed (e.g., outdoor telecom cabinets), but requires more board space | Choose 1.5KE440A only if system-level testing confirms need for >600 W surge margin beyond P6KE440-E3/73 capability. |
Compared with SMBJ440A and 1.5KE440A, the P6KE440-E3/73 offers optimal balance of proven reliability in through-hole automotive harnesses, cost-effective manual or selective soldering, and sufficient 600 W surge rating for most industrial and consumer DC rail protection tasks - without over-engineering package size or power rating.
Availability
P6KE440-E3/73 is available at Aetrix Electronics and suitable for automotive ECUs, industrial motor controllers, telecom line interfaces, and consumer appliance power supplies requiring stable component supply and long-term obsolescence management.
Supply support for P6KE440-E3/73 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, ruggedness, and automotive-grade qualification.
The P6KE series was developed for cost-sensitive, high-volume transient suppression in commercial and automotive power systems - prioritizing consistent clamping performance, thermal robustness, and compatibility with legacy through-hole manufacturing infrastructure.
FAQ
What is the polarity configuration of the P6KE440-E3/73?
The P6KE440-E3/73 is a unidirectional TVS diode, meaning it conducts only when reverse-biased beyond its breakdown voltage. The cathode is marked with a color band on the body; the unmarked lead is the anode. This configuration allows it to protect positive DC rails by shunting surge current to ground when voltage exceeds 418–462 V, while blocking normal forward operation.
Does the P6KE440-E3/73 meet automotive qualification standards?
Yes, the P6KE440-E3/73 carries the E3 suffix, indicating RoHS compliance and AEC-Q101 qualification per Vishay documentation. This certification validates its performance under temperature cycling, humidity bias, mechanical shock, and accelerated life testing required for automotive body electronics and powertrain control modules.
What is the maximum clamping voltage of the P6KE440-E3/73 under surge conditions?
The P6KE440-E3/73 clamps to a maximum of 602 V when subjected to a 10/1000 µs waveform peak pulse current of 1.0 A. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on the protected circuit during standardized surge events - critical for ensuring downstream components remain within their absolute maximum ratings.
Can the P6KE440-E3/73 be used in bi-directional protection applications?
No - the P6KE440-E3/73 is strictly unidirectional. For bi-directional protection (e.g., AC lines or differential data buses), Vishay specifies the CA-suffix variant (P6KE440CA). Using the unidirectional P6KE440-E3/73 in bi-directional configurations risks catastrophic failure during negative-going transients due to lack of reverse avalanche capability.
What is the thermal resistance specification for the P6KE440-E3/73?
The P6KE440-E3/73 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, measured under standard test conditions. This parameter directly impacts steady-state power dissipation capability: at 5.0 W rated power, the junction-to-lead temperature rise is ~100 °C, requiring adequate PCB copper area or chassis mounting to maintain TJ ≤ 175 °C in continuous operation.
P6KE440-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- 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-E3/73 FAQ
1.How can I place an order for P6KE440-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE440-E3/73 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-E3/73 reliable?
The price and inventory of P6KE440-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE440-E3/73 is usually 5 days.
3.What payment methods are accepted for P6KE440-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE440-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE440-E3/73?
P6KE440-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE440-E3/73 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-E3/73?
For technical support, including P6KE440-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE440-E3/73 requirements.
6.How does Aetrix verify that P6KE440-E3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE440-E3/73 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-E3/73 meets industry standards.
7.What is the process for return or replacement of P6KE440-E3/73?
All P6KE440-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE440-E3/73, 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-E3/73 part is unused and in its original packaging.
Return procedure for P6KE440-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE440-E3/73 Tags
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