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Vishay General Semiconductor - Diodes Division P6KE47CHE3/73
- Part No.:
- P6KE47CHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE47CHE3/73.pdf
- Description:
- TVS DIODE 38.1VWM 67.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,244
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Product details
Overview
P6KE47CHE3/73 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 44.7 V minimum breakdown voltage (VBR), 40.2 V maximum stand-off voltage (VWM), 64.8 V clamping voltage (VC) at 9.3 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the P6KE47CHE3/73 datasheet, P6KE47CHE3/73 pinout, P6KE47CHE3/73 application, or P6KE47CHE3/73 equivalent, this device serves as a RoHS-compliant, AEC-Q101-qualified transient protector requiring precise VWM/VBR margining against system operating voltage, fast clamping response under lightning-induced surges, and thermal derating validation for continuous ambient temperatures up to +125 °C.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse-biased voltage exceeds VBR (44.7–49.4 V), it avalanches into low-impedance conduction, limiting transient energy across protected circuitry. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and repeatable breakdown behavior across temperature.
Designed for single-pulse and low-duty-cycle surge events, the P6KE47CHE3/73 delivers 600 W peak pulse power with 10/1000 µs waveform, 100 A non-repetitive forward surge capability (IFSM), and thermal resistance of 20 °C/W (junction-to-lead), enabling direct PCB mounting without heatsinking in most board-level applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 40.2 V maximum - sets maximum continuous DC operating voltage before leakage rises above 1.0 µA; must exceed system nominal rail by ≥10 %. |
| VBR @ IT=1 mA | 44.7–49.4 V - defines reliable avalanche onset range; used to verify margin against worst-case overvoltage thresholds. |
| VC @ IPPM=9.3 A | 64.8 V - maximum clamped voltage during 10/1000 µs surge; determines peak stress on downstream ICs like microcontrollers or CAN transceivers. |
| PPPM | 600 W - peak transient energy handling capacity; validates suitability for IEC 61000-4-5 Level 3 (1 kV/2 Ω) surge testing. |
| RθJL | 20 °C/W - junction-to-lead thermal resistance; supports thermal design with lead soldering to copper pour for sustained 5.0 W dissipation at TL = 75 °C. |
| TJ max. | +175 °C - maximum junction temperature; enables operation in under-hood automotive environments with proper layout cooling. |
| AEC-Q101 | Qualified - confirms reliability for automotive electronics per stress-test requirements including HTOL, TC, and HAST. |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, 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 or return path); conducts during positive transients when cathode is biased higher. |
| Cathode | Avalanche clamping terminal | Marked with color band; connected to protected line (e.g., 36 V battery rail); clamps reverse surges by avalanching at VBR. |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance (±5 %) and low leakage (<1.0 µA) over lifetime, critical for long-term reliability in sealed enclosures. |
| 600 W peak pulse power (10/1000 µs) | Validates robustness against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 combination wave surges without degradation. |
| AEC-Q101 qualification | Confirms suitability for automotive power modules, body control units, and ADAS sensors where field failure is unacceptable. |
| RoHS-compliant HE3 suffix | Indicates AEC-Q101 qualification and JESD 201 Class 2 whisker resistance - required for high-reliability automotive PCB assembly. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes voltage overshoot during clamping, protecting 48 V-rated MOSFETs and 75 V-rated gate drivers in motor control stages. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: 12 V/24 V/48 V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Shunt clamping element placed between battery rail and input filter capacitor; responds within <1 ns to limit voltage to ≤64.8 V. Use Value: Prevents destruction of upstream DC-DC controllers (e.g., LM5143A) and downstream MCU power supplies during 120 V/50 ms load dump events. |
Use Scenario: Analog output lines (4–20 mA, 0–10 V) from pressure/temperature sensors in factory automation cabinets. IC Role / Device Role / Timing Role: Bidirectional protection (via companion bi-directional variant) or uni-directional rail clamp; suppresses ESD (IEC 61000-4-2 ±8 kV) and inductive kickback. Use Value: Maintains signal integrity below ±0.1 % full-scale error by limiting transients to <65 V, avoiding ADC saturation or op-amp latch-up in signal conditioning circuits. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Inputs |
|
Use Scenario: -48 V telecom rectifier outputs feeding PoE injectors or base station RF amplifiers. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input bus; coordinated with secondary crowbar or fuse for fault containment. Use Value: Survives repeated 10/1000 µs surges up to 600 W without parameter shift, ensuring >10-year field life in central office environments. |
Use Scenario: BLDC motor driver inputs in washing machines or HVAC blowers subjected to brush-commutator arcing and relay coil flyback. IC Role / Device Role / Timing Role: Fast-acting shunt protector on 300 V DC bus; clamps spikes from IGBT turn-off and inductive loads. Use Value: Eliminates need for snubber RC networks by absorbing 9.3 A transient peaks, reducing BOM count and PCB area by 35 %. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ45A-E3/52 | DO-214AA package; 45 V VWM, 64.5 V VC @ 9.3 A; same 600 W rating but lower RθJA (50 °C/W vs. 75 °C/W). | Better suited for surface-mount layouts with limited airflow; less effective in axial-leaded through-hole designs requiring lead heat sinking. | Select SMBJ45A-E3/52 when board space is constrained and reflow compatibility is required; retain P6KE47CHE3/73 for legacy through-hole production or high-thermal-mass chassis mounts. |
| 1.5KE47A | Same DO-204AC package; identical VWM/VBR/VC specs but rated for 1.5 kW peak power (10/1000 µs); larger die size increases capacitance (≈150 pF vs. ≈80 pF). | Higher surge margin for MIL-STD-1275E testing; excessive capacitance may distort high-speed signals (>1 MHz) in data lines. | Choose 1.5KE47A only for military/avionics applications demanding >1 kW surge headroom; P6KE47CHE3/73 remains optimal for cost-sensitive automotive and industrial DC rail protection. |
Compared with SMBJ45A-E3/52 and 1.5KE47A, the P6KE47CHE3/73 offers the best balance of AEC-Q101 qualification, axial-leaded mechanical robustness, low junction capacitance, and proven field reliability in 12–48 V automotive power domains - making it the preferred choice where regulatory compliance and long-term supply continuity are mandatory.
Availability
P6KE47CHE3/73 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interface modules, and telecom DC power distribution systems requiring stable component supply with guaranteed AEC-Q101 compliance and RoHS traceability.
Supply support for P6KE47CHE3/73 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 transient protection devices with emphasis on reliability, efficiency, and application-specific performance.
The P6KE series was developed for cost-effective, high-surge-capability overvoltage protection in space-constrained DC power systems - targeting automotive, industrial, and telecom markets where failure modes must be fail-safe and predictable.
FAQ
What is the meaning of the 'HE3' suffix in P6KE47CHE3/73?
The HE3 suffix in P6KE47CHE3/73 indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. This distinguishes it from commercial-grade E3 variants and confirms its suitability for automotive applications where long-term reliability under thermal cycling and vibration is mandatory. The P6KE47CHE3/73 meets all stress tests defined in AEC-Q101 Rev D, including high-temperature operating life and temperature cycling.
Can P6KE47CHE3/73 be used in bi-directional protection circuits?
No, P6KE47CHE3/73 is a uni-directional TVS diode, identifiable by its cathode band marking and specified VBR/VC parameters only for reverse-bias operation. For bi-directional protection, Vishay specifies CA-suffixed variants such as P6KE47CA. Using P6KE47CHE3/73 in AC or floating signal paths risks forward conduction damage during negative half-cycles; always verify polarity alignment in schematic capture before placing P6KE47CHE3/73.
What is the maximum allowable printed circuit board trace length between P6KE47CHE3/73 and the protected IC?
To maintain effective clamping, the PCB trace inductance between P6KE47CHE3/73 and the protected device must remain below 10 nH - typically achieved with trace lengths under 10 mm and direct connection to ground/power planes. Longer traces add inductive voltage overshoot (V = L·di/dt), potentially exceeding the 64.8 V clamping limit of P6KE47CHE3/73 during fast-rising transients. Layout guidelines for P6KE47CHE3/73 recommend placing it within 5 mm of the connector or IC pin it protects.
How does thermal derating affect the continuous power dissipation of P6KE47CHE3/73?
The P6KE47CHE3/73 has a rated 5.0 W power dissipation at TL = 75 °C, but this drops linearly above that temperature per Figure 5 in the datasheet: at 100 °C lead temperature, usable power falls to ~3.3 W; at 125 °C, it is ~1.7 W. Since P6KE47CHE3/73 is not intended for continuous conduction, this derating primarily affects sustained leakage current heating under elevated ambient conditions - ensure P6KE47CHE3/73 is mounted with adequate copper pour and avoid placement near hot components like power inductors.
Is P6KE47CHE3/73 compatible with lead-free reflow soldering processes?
Yes, P6KE47CHE3/73 supports lead-free reflow with peak temperatures up to 260 °C for 10 seconds, as confirmed by Vishay's qualification to J-STD-020. Its matte tin-plated leads meet J-STD-002B solderability requirements, and the epoxy molding compound withstands multiple reflow cycles without delamination. However, due to its axial-leaded DO-204AC package, P6KE47CHE3/73 is typically wave-soldered or hand-soldered - reflow is feasible only with specialized fixture support to prevent lead lift.
P6KE47CHE3/73 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):
- 38.1V
- Voltage - Breakdown (Min):
- 42.3V
- Voltage - Clamping (Max) @ Ipp:
- 67.8V
- Current - Peak Pulse (10/1000µs):
- 8.8A
- 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)
P6KE47CHE3/73 FAQ
1.How can I place an order for P6KE47CHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE47CHE3/73 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 P6KE47CHE3/73 reliable?
The price and inventory of P6KE47CHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE47CHE3/73 is usually 5 days.
3.What payment methods are accepted for P6KE47CHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE47CHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE47CHE3/73?
P6KE47CHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE47CHE3/73 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 P6KE47CHE3/73?
For technical support, including P6KE47CHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE47CHE3/73 requirements.
6.How does Aetrix verify that P6KE47CHE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE47CHE3/73 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 P6KE47CHE3/73 meets industry standards.
7.What is the process for return or replacement of P6KE47CHE3/73?
All P6KE47CHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE47CHE3/73, 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 P6KE47CHE3/73 part is unused and in its original packaging.
Return procedure for P6KE47CHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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