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Vishay General Semiconductor - Diodes Division P6KE43CHE3/73
- Part No.:
- P6KE43CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE43CHE3/73.pdf
- Description:
- TVS DIODE 34.8VWM 61.9VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,060
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Product details
Overview
P6KE43CHE3/73 from Vishay General Semiconductor is a uni-directional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for primary overvoltage protection of DC power rails and signal lines. It features 600 W peak pulse power (10/1000 μs), 40.9 V minimum breakdown voltage (VBR), 36.8 V maximum stand-off voltage (VWM), and clamps to ≤59.3 V at 10.1 A peak pulse current - deployed in automotive ECU power inputs and industrial sensor interfaces.
For engineers reviewing the P6KE43CHE3/73 datasheet, P6KE43CHE3/73 pinout, P6KE43CHE3/73 application, or P6KE43CHE3/73 equivalent, key selection criteria include verified clamping performance under 10/1000 μs surge, AEC-Q101 qualification status, DO-15 mechanical compatibility, and thermal resistance (RθJL = 20 °C/W) for board-level thermal design.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse-biased voltage exceeds VBR (40.9–45.2 V), it avalanches into low-impedance conduction, diverting transient energy away from downstream ICs. Its glass-passivated junction ensures stable breakdown and fast response (<1 ns), while the 10/1000 μs waveform rating reflects standardized surge immunity testing per IEC 61000-4-5.
Designed for uni-directional DC line protection, P6KE43CHE3/73 exhibits 1.0 μA max reverse leakage at 36.8 V, 3.5 V max forward voltage at 50 A, and operates across –55 °C to +175 °C junction temperature range - supporting under-hood automotive and high-reliability industrial environments where thermal derating and long-term stability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36.8 V - Maximum continuous reverse operating voltage before leakage exceeds 1.0 μA; sets safe DC rail margin below clamping threshold |
| VBR (min/max) | 40.9 V / 45.2 V at 1.0 mA - Confirmed avalanche onset range; defines minimum overvoltage detection threshold |
| VC @ IPPM | ≤59.3 V at 10.1 A - Clamped voltage during 600 W transient; determines protected circuit's worst-case stress level |
| PPPM | 600 W - Peak pulse power handling with 10/1000 μs waveform; validates compliance with IEC 61000-4-5 Level 4 |
| RθJL | 20 °C/W - Junction-to-lead thermal resistance; enables direct PCB copper pour sizing for sustained surge duty |
| TJ max | +175 °C - Maximum junction temperature; supports operation in engine bay or sealed industrial enclosures |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD |
Pinout & Package
Package: DO-204AC (DO-15), axial lead, epoxy-molded case meeting UL 94 V-0 flammability rating; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND) in uni-directional configuration; carries full surge current during clamping |
| Cathode | Reverse-biased clamping terminal | Marked with color band; connected to protected line (e.g., 24 V rail); initiates avalanche at VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance (±5 %) and long-term reliability under thermal cycling and humidity exposure |
| 600 W peak pulse power (10/1000 μs) | Validated surge immunity for automotive load dump (ISO 7637-2 Pulse 5a) and industrial inductive switching transients |
| AEC-Q101 qualified | Meets automotive-grade stress testing including 1000-hr HTOL at 175 °C and 1000-cycle temperature cycling (–55 °C to +150 °C) |
| Low incremental surge resistance | Enables tight VC control (59.3 V @ 10.1 A) without external series impedance - simplifies PCB layout |
| RoHS-compliant HE3 suffix | Meets JESD 201 Class 2 whisker resistance; suitable for high-vibration automotive harness and connector applications |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
Use Scenario: 12 V/24 V battery-fed ECUs exposed to ISO 7637-2 load dump pulses up to 120 V. IC Role / Device Role / Timing Role: Primary shunt clamp on main power rail, placed upstream of DC/DC converter input. Use Value: Limits rail voltage to ≤59.3 V during 10/1000 μs surges, preventing MOSFET gate oxide rupture and regulator latch-up. |
Use Scenario: 4–20 mA current loop transmitters interfacing with PLC analog inputs in factory automation. IC Role / Device Role / Timing Role: Bidirectional transient suppressor on signal pair (with companion bi-directional device), but P6KE43CHE3/73 used for DC bias rail protection. Use Value: Clamps induced lightning-induced surges (IEC 61000-4-5) to safe levels before reaching precision op-amps and ADC front-ends. |
| Consumer Power Adapter Output | Telecom DC Feeder Protection |
Use Scenario: Secondary-side 5 V/12 V outputs of wall adapters subjected to ESD and capacitive coupling transients. IC Role / Device Role / Timing Role: Final-stage overvoltage guard before USB ports or microcontroller VDD pins. Use Value: Responds in <1 ns to fast-rising ESD events (IEC 61000-4-2), limiting voltage overshoot to <60 V during 30 A contact discharge. |
Use Scenario: -48 V DC telecom feeder lines entering remote radio units exposed to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Standoff-rated protector on power feed line, coordinated with upstream gas discharge tube (GDT). Use Value: Provides precise clamping at 36.8 V standoff and 59.3 V clamping, enabling robust two-stage protection architecture with low let-through voltage. |
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 min; 600 W rating; RθJA = 40 °C/W vs. 75 °C/W for P6KE43CHE3/73 | Surface-mount alternative; requires reflow-compatible layout; lower thermal mass limits repetitive surge duty | Select SMBJ43A for space-constrained PCBs where automated assembly is required and thermal management uses copper planes. |
| 1.5KE43A | Same DO-204AC package; identical VBR/VC specs; 1500 W peak power (10/1000 μs); higher IPPM (33.5 A) | Higher-power variant; not AEC-Q101 qualified; commercial-grade only (E3 suffix) | Choose 1.5KE43A when surge threat exceeds 600 W (e.g., heavy industrial motor drives) and automotive qualification is not required. |
Compared with SMBJ43A and 1.5KE43A, P6KE43CHE3/73 uniquely combines AEC-Q101 qualification, DO-204AC through-hole mechanical robustness, and optimized thermal resistance (RθJL = 20 °C/W) for high-reliability wired connections in harsh environments - making it preferred for automotive and industrial field-deployed equipment.
Availability
P6KE43CHE3/73 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, consumer power adapter outputs, and telecom DC feeder protection requiring stable component supply and long-term lifecycle support.
Supply support for P6KE43CHE3/73 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, efficiency, and application-specific validation.
The P6KE series targets cost-sensitive yet reliability-critical overvoltage protection in automotive, industrial, and telecom infrastructure - delivering validated surge immunity in standardized axial packages with AEC-Q101 and RoHS compliance.
FAQ
What is the exact breakdown voltage range for P6KE43CHE3/73?
The P6KE43CHE3/73 has a guaranteed breakdown voltage (VBR) range of 40.9 V to 45.2 V measured at 1.0 mA test current, per Vishay Document Number 88369. This range reflects manufacturing tolerance and ensures consistent clamping behavior across production lots. The P6KE43CHE3/73 achieves this specification using a glass-passivated silicon junction, which maintains stability over temperature and lifetime.
Is P6KE43CHE3/73 suitable for automotive applications?
Yes, P6KE43CHE3/73 is AEC-Q101 qualified and specifically rated for automotive use, including under-hood environments. Its –55 °C to +175 °C operating junction temperature range, validated HTOL and thermal cycling performance, and HE3 suffix (JESD 201 Class 2 whisker resistance) confirm suitability for engine control modules, body electronics, and ADAS power supplies. The P6KE43CHE3/73 meets ISO 7637-2 Pulse 5a load dump requirements when properly mounted with adequate copper thermal relief.
What does the "HE3" suffix indicate in P6KE43CHE3/73?
The "HE3" suffix in P6KE43CHE3/73 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. Unlike standard E3 parts, HE3 devices undergo additional mechanical and environmental stress screening for automotive reliability. The P6KE43CHE3/73 HE3 variant uses matte tin-plated leads qualified per J-STD-002 and JESD 22-B102, ensuring solder joint integrity in high-vibration applications such as automotive wiring harnesses and motor control units.
How does P6KE43CHE3/73 compare to bi-directional TVS diodes like P6KE43CA?
P6KE43CHE3/73 is uni-directional and intended for DC line protection where polarity is fixed (e.g., +24 V rail to GND), offering tighter VBR control and lower capacitance than bi-directional variants. In contrast, P6KE43CA protects AC or bidirectional signals but lacks cathode marking and exhibits symmetrical VBR in both directions. The P6KE43CHE3/73 provides superior clamping precision for unidirectional power rails and avoids ambiguity in orientation-dependent layouts - critical for automotive and industrial designs where polarity errors must be prevented.
What is the maximum clamping voltage of P6KE43CHE3/73 under surge conditions?
The maximum clamping voltage (VC) of P6KE43CHE3/73 is 59.3 V at 10.1 A peak pulse current (IPPM) with a 10/1000 μs waveform, as specified in Vishay's datasheet. This value represents the worst-case voltage seen by downstream components during a standardized surge event and is measured at TA = 25 °C. The P6KE43CHE3/73 maintains this clamping performance across its full operating temperature range due to its low temperature coefficient (0.101 %/°C) and stable junction design.
P6KE43CHE3/73 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE43CHE3/73 FAQ
1.How can I place an order for P6KE43CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE43CHE3/73 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 P6KE43CHE3/73 reliable?
The price and inventory of P6KE43CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE43CHE3/73 is usually 5 days.
3.What payment methods are accepted for P6KE43CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE43CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE43CHE3/73?
P6KE43CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE43CHE3/73 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 P6KE43CHE3/73?
For technical support, including P6KE43CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE43CHE3/73 requirements.
6.How does Aetrix verify that P6KE43CHE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE43CHE3/73 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 P6KE43CHE3/73 meets industry standards.
7.What is the process for return or replacement of P6KE43CHE3/73?
All P6KE43CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE43CHE3/73, 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 P6KE43CHE3/73 part is unused and in its original packaging.
Return procedure for P6KE43CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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