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Vishay General Semiconductor - Diodes Division P6KE47-E3/73
- Part No.:
- P6KE47-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE47-E3/73.pdf
- Description:
- TVS DIODE 38.1VWM 67.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,854
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Product details
Overview
P6KE47-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-204AC (DO-15) package, designed for primary overvoltage protection of sensitive electronics. It features 44.7 V minimum breakdown voltage (VBR), 40.2 V maximum standoff voltage (VWM), 64.8 V clamping voltage (VC) at 9.3 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 µs waveform - used to safeguard MOSFETs, ICs, and sensor signal lines against inductive switching transients.
For engineers reviewing the P6KE47-E3/73 datasheet, P6KE47-E3/73 pinout, P6KE47-E3/73 application, or P6KE47-E3/73 equivalent, this device serves as a RoHS-compliant, AEC-Q101-qualified transient suppressor optimized for automotive, industrial, and telecom power rail and I/O line protection where fast response (<1 ns), low clamping ratio (VC/VBR ≈ 1.45), and 175 °C junction temperature capability are critical.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ leakage at VWM), but triggers into low-impedance conduction when reverse voltage exceeds VBR (44.7–49.4 V). Its glass-passivated junction ensures stable avalanche characteristics and repeatable clamping performance across surge events.
Designed for 10/1000 µs waveform compliance, it delivers 600 W peak pulse power with 0.01% duty cycle, supported by thermal resistance RθJL = 20 °C/W and RθJA = 75 °C/W. The 100 A IFSM rating enables robust handling of 8.3 ms half-sine surges, while its 3.5 V forward voltage at 50 A confirms low-conduction loss during fault conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 44.7 V / 49.4 V - defines precise avalanche initiation range; ensures reliable triggering before downstream component damage |
| VWM | 40.2 V - maximum continuous reverse operating voltage; sets safe margin below VBR for stable standby operation |
| VC @ IPPM | 64.8 V at 9.3 A - clamping voltage limits transient energy delivered to protected circuit; critical for IC-level survivability |
| PPPM | 600 W - peak pulse power handling with 10/1000 µs waveform; validates suitability for automotive load-dump and inductive kick scenarios |
| IPPM | 9.3 A - peak pulse current capacity; determines maximum surge energy (≈ 0.6 J) the device can absorb without degradation |
| TJ max | 175 °C - maximum junction temperature; enables operation in under-hood automotive environments and high-ambient industrial settings |
| RθJL | 20 °C/W - thermal resistance junction-to-lead; supports effective heat transfer to PCB copper pour or heatsinked leads |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, molded epoxy case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by color band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward-biased faults or ESD events |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., 48 V rail or sensor input); initiates clamping when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable, repeatable avalanche characteristics over 1000+ surge cycles and extended temperature cycling |
| 600 W peak pulse power (10/1000 µs) | Validates protection against ISO 7637-2 Pulse 1/2a/5a and SAE J1113-11 load-dump transients in 12/24 V systems |
| AEC-Q101 qualified (HE3 suffix variant) | Confirms reliability for automotive powertrain and body electronics; P6KE47-E3/73 is commercial-grade RoHS-compliant version |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns response), reducing stress on downstream CMOS inputs |
| Solder dip 275 °C max. (10 s) | Enables compatibility with lead-free reflow and wave soldering processes without parametric shift or delamination |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Suppressing load-dump transients (up to 60 V, 400 ms) on 24 V battery-fed ECUs in commercial vehicles. IC Role / Device Role / Timing Role: Shunt clamping element placed between power rail and ground, triggered within <1 ns to clamp voltage to ≤64.8 V. Use Value: Prevents permanent damage to 48 V-tolerant microcontrollers and CAN transceivers during alternator regulation failure. |
Use Scenario: Protecting analog outputs of pressure sensors in PLC I/O modules exposed to relay coil flyback coupling. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (cathode to signal, anode to ground) limiting induced spikes to <65 V. Use Value: Maintains ±0.1% measurement accuracy by preventing latch-up in 24-bit ADC front-ends during 1 kV/µs transients. |
| Telecom DC Power Input Protection | Consumer Device USB Port ESD Clamping |
|
Use Scenario: Safeguarding -48 V DC input stages of VoIP gateways against lightning-induced surges on telecom lines. IC Role / Device Role / Timing Role: Primary-level unidirectional suppressor mounted at board edge, clamping negative transients to ≤64.8 V. Use Value: Enables compliance with ITU-T K.20/21 immunity requirements without requiring secondary TVS or series impedance. |
Use Scenario: Secondary-level ESD protection on VBUS line of USB 2.0 host ports in smart home hubs. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 40.2 V) placed after 5 V regulator to handle >30 kV HBM events. Use Value: Limits VBUS overshoot to <65 V during contact discharge, preventing damage to USB PHY and power switch ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ45A | DO-214AA package; 45 V VWM, 69.4 V VC @ 8.6 A; same PPPM but 20% higher clamping voltage | Surface-mount layout; requires PCB rework for through-hole replacement | Select SMBJ45A only when space-constrained SMT design mandates footprint change and higher VC is acceptable |
| 1.5KE47A | Same DO-204AC package; identical VBR/VWM/VC specs but 1500 W PPPM; larger die, higher IPPM (32.4 A) | Higher-energy surge environments (e.g., railway traction control); not AEC-Q101 qualified | Choose 1.5KE47A when system-level testing reveals insufficient margin with 600 W rating, accepting larger thermal mass |
Compared with SMBJ45A and 1.5KE47A, P6KE47-E3/73 offers optimal balance of compact axial-leaded form factor, precise 40.2 V standoff, and AEC-Q101-qualified reliability for cost-sensitive automotive and industrial designs where 600 W surge capacity is sufficient.
Availability
P6KE47-E3/73 is available at Aetrix Electronics and suitable for automotive ECU power rails, industrial sensor interfaces, telecom DC inputs, and consumer USB power protection requiring stable component supply and RoHS-compliant sourcing.
Supply support for P6KE47-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 application-specific validation.
The P6KE series was engineered for cost-effective, high-surge-capability transient suppression in space-constrained commercial and automotive systems - prioritizing fast response, stable clamping, and manufacturability in axial-leaded packages.
FAQ
What is the maximum clamping voltage of P6KE47-E3/73 and under what test condition?
The maximum clamping voltage of P6KE47-E3/73 is 64.8 V, measured at a peak pulse current (IPPM) of 9.3 A using a 10/1000 µs waveform per Fig. 1 in Vishay document 88369. This value represents the upper limit of voltage seen by protected circuitry during worst-case surge events and is guaranteed across the full operating temperature range.
Is P6KE47-E3/73 suitable for automotive applications requiring AEC-Q101 qualification?
P6KE47-E3/73 carries the E3 suffix, indicating RoHS-compliant commercial grade. For AEC-Q101 qualification, the HE3 suffix variant (e.g., P6KE47HE3/73) must be selected. The P6KE47-E3/73 itself is not AEC-Q101 qualified, though its electrical specs and construction are identical - only the test certification differs.
How does the standoff voltage VWM of 40.2 V relate to system operating voltage in practice?
The 40.2 V VWM of P6KE47-E3/73 provides a 10% margin above nominal 36 V automotive systems and 15% margin above 34.5 V industrial 48 VDC rails, ensuring no leakage or premature conduction during normal operation. It allows direct placement across 36–42 V supplies without derating or series resistance.
Can P6KE47-E3/73 be used in bidirectional protection configurations?
No - P6KE47-E3/73 is unidirectional, as indicated by the "A" suffix (vs. "CA" for bidirectional). Using it in reverse-biased configurations risks catastrophic failure. For bidirectional protection at ~47 V, the correct part is P6KE47CA-E3/73, which has symmetric breakdown in both directions.
What is the thermal resistance junction-to-ambient (RθJA) for P6KE47-E3/73 and how does it affect PCB layout?
P6KE47-E3/73 has a typical RθJA of 75 °C/W. To maintain TJ ≤ 175 °C under 5.0 W steady-state dissipation, PCB layout must include ≥100 mm² of 2-oz copper connected to both leads. Without thermal relief, ambient temperature must stay below 100 °C - underscoring need for adequate copper pour or forced airflow in high-power surge scenarios.
P6KE47-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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE47-E3/73 FAQ
1.How can I place an order for P6KE47-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE47-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 P6KE47-E3/73 reliable?
The price and inventory of P6KE47-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 P6KE47-E3/73 is usually 5 days.
3.What payment methods are accepted for P6KE47-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE47-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE47-E3/73?
P6KE47-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE47-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 P6KE47-E3/73?
For technical support, including P6KE47-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE47-E3/73 requirements.
6.How does Aetrix verify that P6KE47-E3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE47-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 P6KE47-E3/73 meets industry standards.
7.What is the process for return or replacement of P6KE47-E3/73?
All P6KE47-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE47-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 P6KE47-E3/73 part is unused and in its original packaging.
Return procedure for P6KE47-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE47-E3/73 Tags
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