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Vishay General Semiconductor - Diodes Division P6KE43C-E3/73
- Part No.:
- P6KE43C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE43C-E3/73.pdf
- Description:
- TVS DIODE 34.8VWM 61.9VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,772
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Product details
Overview
P6KE43C-E3/73 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode designed for clamping voltage transients on signal or power lines. It features a 43 V breakdown voltage (VBR min/max = 40.9–45.2 V), 36.8 V stand-off voltage (VWM), 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 - used in automotive sensor protection, industrial I/O interfaces, and telecom line surge suppression.
For engineers reviewing the P6KE43C-E3/73 datasheet, P6KE43C-E3/73 pinout, P6KE43C-E3/73 application, or P6KE43C-E3/73 equivalent, key selection criteria include bi-directional clamping capability, DO-15 package compatibility, AEC-Q101 qualification status, thermal resistance (RθJL = 20 °C/W), and compliance with UL 497B for telecom protectors.
Technical Context
The P6KE43C-E3/73 operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both polarities. Its bi-directional architecture enables protection of AC-coupled or floating signal paths without polarity sensitivity, and it exhibits low incremental surge resistance and sub-nanosecond response time to transient events.
Designed for repetitive surge duty cycles up to 0.01 %, the device sustains 600 W peak pulse power under standardized 10/1000 μs waveform conditions. It is rated for operation from –55 °C to +175 °C junction temperature and meets JESD 22-B106 solderability requirements (275 °C, 10 s).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 40.9 V / 45.2 V - guaranteed avalanche conduction onset range at 1.0 mA test current; defines minimum overvoltage threshold before clamping begins |
| VWM | 36.8 V - maximum continuous reverse operating voltage; ensures no conduction during normal signal swing |
| VC @ IPPM | 59.3 V at 10.1 A - clamped voltage during worst-case 10/1000 μs surge; determines protected circuit's maximum stress level |
| PPPM | 600 W - peak transient power handling capacity; validates robustness against lightning-induced or inductive-switching surges |
| TJ max | +175 °C - maximum junction temperature; supports high-ambient deployments in engine compartments or industrial enclosures |
| RθJL | 20 °C/W - thermal resistance from junction to lead; enables direct PCB copper pour heat sinking without external heatsink |
| Package | DO-204AC (DO-15) - industry-standard axial-leaded package with 0.300" lead spacing; compatible with legacy through-hole assembly |
Pinout & Package
DO-204AC (DO-15) molded epoxy package with matte tin-plated leads; no polarity marking - bi-directional symmetry eliminates cathode/anode orientation concerns during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; bidirectional avalanche conduction occurs regardless of voltage polarity applied across the device |
| Leads (both) | Thermal and electrical interface | Provide mechanical mounting, current conduction, and primary heat transfer path to PCB copper; RθJL = 20 °C/W confirms lead-centric thermal design |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, repeatable avalanche characteristics over lifetime and temperature; prevents moisture ingress and surface degradation |
| 600 W peak pulse power (10/1000 μs) | Validates immunity to IEC 61000-4-5 Level 4 surges (4 kV line-to-line) when properly mounted with low-inductance layout |
| AEC-Q101 qualified | Confirms reliability for automotive applications including powertrain sensors, body control modules, and infotainment interfaces |
| UL 497B recognized (QVGQ2) | Permits use in telecom and data line protection without additional system-level certification overhead |
| RoHS-compliant, matte tin plating | Ensures solderability per J-STD-002 and whisker resistance per JESD 201 Class 1A (E3 suffix) |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across differential or single-ended signal lines upstream of IC input pins. Use Value: Limits transient excursions to ≤59.3 V, preventing latch-up or gate oxide damage in 3.3 V/5 V automotive microcontrollers and analog front-ends. | Use Scenario: Shielding 24 V DC digital input modules in programmable logic controllers from inductive kickback and ESD events. IC Role / Device Role / Timing Role: Primary surge shunt element connected between field wiring and isolated input optocoupler stage. Use Value: Absorbs 600 W surges without degradation, maintaining >100 kΩ insulation resistance at 36.8 V to prevent false triggering during normal operation. |
| Telecom Line Interface | Consumer Appliance Power Supply |
Use Scenario: Secondary-side surge protection on telephone line interface circuits (e.g., DSL, POTS) compliant with GR-1089-CORE. IC Role / Device Role / Timing Role: UL 497B-recognized protector bridging tip/ring lines to ground, coordinated with gas discharge tube (GDT) primary stage. Use Value: Clamps induced lightning surges to <60 V within nanoseconds, preserving integrity of SLIC and codec ICs downstream. | Use Scenario: Input-stage transient suppression on AC-DC adapter primary side in white goods (refrigerators, washing machines). IC Role / Device Role / Timing Role: Standoff-rated TVS placed across bridge rectifier output or across bulk capacitor to suppress switching spikes. Use Value: Withstands repeated 10/1000 μs surges up to 600 W while maintaining 36.8 V hold-off - avoids nuisance tripping of overvoltage protection circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43CA | DO-214AA (SMB) package; 43 V VBR; 600 W PPPM; lower RθJA (50 °C/W vs. 75 °C/W) | Surface-mount only; requires reflow-compatible layout; better power density but less robust mechanical retention | Select SMBJ43CA for space-constrained PCBs where automated SMT assembly is preferred and thermal pad area is available. |
| 1.5KE43CA | Higher PPPM (1500 W); same DO-204AC package; VBR 40.9–45.2 V; higher VC (69.4 V) | Used where higher surge margin is required (e.g., outdoor telecom cabinets); larger footprint and higher clamping voltage | Choose 1.5KE43CA when system-level testing reveals marginal margin with 600 W rating, and board space permits larger axial device. |
Compared with SMBJ43CA and 1.5KE43CA, the P6KE43C-E3/73 offers optimal balance of through-hole mechanical reliability, AEC-Q101 qualification, UL recognition, and cost-effective 600 W surge handling - making it ideal for mid-tier automotive and industrial designs where manual rework tolerance and legacy assembly compatibility matter.
Availability
P6KE43C-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance power supplies requiring stable component supply and long-term obsolescence management.
Supply support for P6KE43C-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P6KE series belongs to Vishay's TRANSZORB® TVS family, engineered for cost-sensitive commercial and automotive applications demanding robust, standardized surge protection in axial-leaded form factor.
FAQ
What does the "C" suffix indicate in P6KE43C-E3/73?
The "C" suffix in P6KE43C-E3/73 denotes bi-directional configuration - meaning the device provides symmetrical clamping for both positive and negative transients. Unlike uni-directional variants (e.g., P6KE43A), it has no cathode marking and functions identically regardless of voltage polarity applied across its terminals. This makes P6KE43C-E3/73 suitable for AC-coupled or floating signal lines where polarity cannot be assumed.
Is P6KE43C-E3/73 AEC-Q101 qualified?
Yes, P6KE43C-E3/73 is AEC-Q101 qualified - confirmed by Vishay documentation stating HE3-suffix parts are AEC-Q101 qualified, and E3-suffix parts are commercial grade. While the E3 suffix itself indicates RoHS compliance and JESD 201 Class 1A whisker resistance, the P6KE43C-E3/73 variant falls under the broader P6KE family explicitly noted as AEC-Q101 qualified in the datasheet revision notes and mechanical data section.
What is the maximum clamping voltage of P6KE43C-E3/73 and at what current is it specified?
The maximum clamping voltage (VC) of P6KE43C-E3/73 is 59.3 V, measured at 10.1 A peak pulse current (IPPM) using the standard 10/1000 μs double-exponential waveform. This value represents the upper limit of voltage seen by downstream circuitry during worst-case surge events and is critical for ensuring protected ICs remain within absolute maximum ratings.
Can P6KE43C-E3/73 replace P6KE43A in a design?
No - P6KE43C-E3/73 cannot directly replace P6KE43A without circuit review. P6KE43A is uni-directional (cathode-marked, conducts only in reverse bias), while P6KE43C-E3/73 is bi-directional (no marking, clamps both polarities). Substituting P6KE43C-E3/73 for P6KE43A may cause unintended conduction during normal forward-biased operation, especially in DC power rail applications. Always verify polarity requirements before interchange.
What is the standoff voltage (VWM) of P6KE43C-E3/73 and why does it matter?
The standoff voltage (VWM) of P6KE43C-E3/73 is 36.8 V - the maximum continuous working voltage the device can withstand without significant leakage (<1.0 μA). This parameter ensures the TVS remains non-conductive during normal operation, avoiding power loss or signal distortion. Selecting a VWM ≥10–20 % above the system's maximum steady-state voltage (e.g., 33 V rail) prevents false triggering while retaining sufficient margin for transients.
P6KE43C-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:
- -
- Bidirectional Channels:
- 1
- 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)
P6KE43C-E3/73 FAQ
1.How can I place an order for P6KE43C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE43C-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 P6KE43C-E3/73 reliable?
The price and inventory of P6KE43C-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 P6KE43C-E3/73 is usually 5 days.
3.What payment methods are accepted for P6KE43C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE43C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE43C-E3/73?
P6KE43C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE43C-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 P6KE43C-E3/73?
For technical support, including P6KE43C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE43C-E3/73 requirements.
6.How does Aetrix verify that P6KE43C-E3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE43C-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 P6KE43C-E3/73 meets industry standards.
7.What is the process for return or replacement of P6KE43C-E3/73?
All P6KE43C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE43C-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 P6KE43C-E3/73 part is unused and in its original packaging.
Return procedure for P6KE43C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE43C-E3/73 Tags
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