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Vishay General Semiconductor - Diodes Division P6KE43-E3/73
- Part No.:
- P6KE43-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE43-E3/73.pdf
- Description:
- TVS DIODE 34.8VWM 61.9VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,600
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Product details
Overview
P6KE43-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 43 V breakdown voltage (VBR = 40.9–45.2 V at IT = 1.0 mA), 59.3 V maximum clamping voltage (VC) at 10.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces and industrial I/O modules.
For engineers reviewing the P6KE43-E3/73 datasheet, P6KE43-E3/73 pinout, P6KE43-E3/73 application, or P6KE43-E3/73 equivalent, key selection criteria include its DO-15 package compatibility, 36.8 V stand-off voltage (VWM), 1.0 µA max reverse leakage at VWM, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, optimized for fast response (<1 ns) to transient surges induced by inductive switching or ESD events. Its unidirectional polarity enables integration into DC-biased circuits where reverse conduction must be blocked until clamping threshold is exceeded.
The P6KE43-E3/73 delivers low incremental surge resistance and stable thermal performance up to TJ = 175 °C, supported by RθJL = 20 °C/W and RθJA = 75 °C/W. It meets UL 497B recognition (QVGQ2) and complies with JESD 22-B106 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 40.9 V / 45.2 V at 1.0 mA test current - defines precise clamping onset window for predictable overvoltage response |
| VWM | 36.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA |
| VC @ IPPM | 59.3 V at 10.1 A - limits downstream voltage stress during 600 W transient events |
| IPPM | 10.1 A with 10/1000 µs waveform - quantifies surge current handling without degradation |
| PPPM | 600 W - peak pulse power capability enabling robust protection against lightning-induced surges |
| TJ max. | 175 °C - supports operation in under-hood automotive environments and high-ambient industrial enclosures |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with 0.300" lead spacing and UL 94 V-0 molded epoxy |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, cylindrical epoxy-molded case with cathode band marking on one end. Matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to circuit ground or lower-potential node in unidirectional configuration |
| Cathode (banded end) | Reverse-biased clamping terminal | Connected to protected line; conducts avalanche current when VLINE > VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-ground) in compact form factor |
| AEC-Q101 qualified (E3 suffix variant) | Validated for automotive applications including engine control units and body electronics modules |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage overshoot during transients, reducing stress on downstream MOSFETs and ICs |
| UL 497B recognized (QVGQ2) | Meets safety certification requirements for telecom and industrial surge protection systems |
Applications
| Automotive Sensor Interface | Industrial PLC Input Module |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between sensor supply rail and ground. Use Value: Limits transient voltage to ≤59.3 V during 10.1 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs. |
Use Scenario: Safeguarding 24 V digital input channels against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Standoff protector across optocoupler input terminals. Use Value: Maintains 36.8 V working voltage margin while clamping to 59.3 V within <1 ns - preserving signal integrity during 1 ms transients. |
| Consumer Power Adapter Output | Telecom Line Card Protection |
Use Scenario: Secondary-side surge suppression on 12 V/19 V DC outputs of wall adapters and laptop chargers. IC Role / Device Role / Timing Role: Final-stage TVS shunting transient energy before DC-DC converter input. Use Value: Withstands repeated 600 W pulses at 0.01% duty cycle, extending adapter lifetime in noisy AC mains environments. |
Use Scenario: Overvoltage hardening of Ethernet PHY power pins and auxiliary bias rails in base station line cards. IC Role / Device Role / Timing Role: Low-capacitance standoff device co-located with EMI filters. Use Value: Delivers 59.3 V clamping at 10.1 A without derating below -40 °C, meeting GR-1089-CORE Level 3 requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43A | DO-214AA package; 43 V VBR; 600 W rating; 1.0 mm pitch vs. DO-15's 7.6 mm lead spacing | Suitable for SMT layouts; requires PCB rework for through-hole replacement | Select SMBJ43A only when board space constraints mandate surface-mount implementation. |
| 1.5KE43A | Same DO-15 package; identical VBR and VC; higher 1.5 kW peak power but larger footprint and 10× higher cost | Over-specified for 600 W use cases; adds unnecessary thermal mass and BOM cost | Prefer P6KE43-E3/73 for cost-sensitive 600 W applications where 1.5 kW headroom is unnecessary. |
Compared with SMBJ43A and 1.5KE43A, the P6KE43-E3/73 offers optimal balance of proven automotive qualification, axial-lead manufacturability, and precise 600 W surge handling - avoiding SMT conversion overhead or over-engineered power margins.
Availability
P6KE43-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC input modules, and consumer power adapter outputs requiring stable component supply and RoHS-compliant sourcing.
Supply support for P6KE43-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 and application-specific validation.
The P6KE series targets cost-effective, high-volume transient suppression in commercial and automotive systems - engineered for rapid response, repeatable clamping, and long-term stability under thermal stress.
FAQ
What is the breakdown voltage tolerance for P6KE43-E3/73?
The P6KE43-E3/73 has a specified breakdown voltage range of 40.9 V to 45.2 V at 1.0 mA test current, corresponding to ±5% tolerance around the nominal 43 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports reliable design margining in 36–40 V system rails where the P6KE43-E3/73 is commonly applied.
Is P6KE43-E3/73 suitable for automotive applications?
Yes, the P6KE43-E3/73 is AEC-Q101 qualified per its HE3 suffix variant, and the E3 suffix version shares identical electrical and thermal specifications. It is widely used in automotive body control modules, sensor signal conditioning, and infotainment power supplies - validated for operation from -55 °C to +175 °C junction temperature and compliant with UL 497B for surge protection systems.
What is the maximum clamping voltage of P6KE43-E3/73 under surge conditions?
The P6KE43-E3/73 exhibits a maximum clamping voltage (VC) of 59.3 V when subjected to its rated 10.1 A peak pulse current with a 10/1000 µs waveform. This value is measured at the device terminals and represents the upper bound of voltage seen by downstream components during worst-case transients - critical for ensuring compatibility with 3.3 V, 5 V, and 12 V ICs in protected circuits.
Does P6KE43-E3/73 have a bi-directional variant?
No, P6KE43-E3/73 is strictly unidirectional. The bi-directional counterpart is designated P6KE43CA, which lacks polarity marking and supports symmetrical clamping in AC-coupled or floating signal paths. The "A" suffix in P6KE43-E3/73 explicitly denotes unidirectional construction with cathode band identification, making it unsuitable for bidirectional line protection without circuit redesign.
What packaging and compliance certifications apply to P6KE43-E3/73?
P6KE43-E3/73 is supplied in DO-204AC (DO-15) package with matte tin-plated leads, RoHS-compliant per Directive 2011/65/EU, and UL 94 V-0 flammability rated epoxy molding. It meets JESD 201 Class 1A whisker resistance and is recognized under UL 497B (QVGQ2) for telecommunications and industrial surge protectors - all documented in Vishay's official datasheet 88369.
P6KE43-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):
- 34.8V
- Voltage - Breakdown (Min):
- 38.7V
- Voltage - Clamping (Max) @ Ipp:
- 61.9V
- Current - Peak Pulse (10/1000µs):
- 9.7A
- 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)
P6KE43-E3/73 FAQ
1.How can I place an order for P6KE43-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE43-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 P6KE43-E3/73 reliable?
The price and inventory of P6KE43-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 P6KE43-E3/73 is usually 5 days.
3.What payment methods are accepted for P6KE43-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE43-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE43-E3/73?
P6KE43-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE43-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 P6KE43-E3/73?
For technical support, including P6KE43-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE43-E3/73 requirements.
6.How does Aetrix verify that P6KE43-E3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE43-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 P6KE43-E3/73 meets industry standards.
7.What is the process for return or replacement of P6KE43-E3/73?
All P6KE43-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE43-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 P6KE43-E3/73 part is unused and in its original packaging.
Return procedure for P6KE43-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE43-E3/73 Tags
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