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Vishay General Semiconductor - Diodes Division P6KE68HE3/73
- Part No.:
- P6KE68HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE68HE3/73.pdf
- Description:
- TVS DIODE 55.1VWM 98VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,019
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Product details
Overview
P6KE68HE3/73 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 sensitive electronics. It features 600 W peak pulse power (10/1000 μs), 64.6 V to 71.4 V breakdown voltage range at 1 mA test current, and clamps transients to ≤92.0 V at 6.5 A peak pulse current. It is AEC-Q101 qualified and used in automotive power line and ECU input protection.
For engineers reviewing the P6KE68HE3/73 datasheet, P6KE68HE3/73 pinout, P6KE68HE3/73 application, or P6KE68HE3/73 equivalent, key selection criteria include clamping voltage under 6.5 A surge, stand-off voltage of 58.1 V, AEC-Q101 qualification status, thermal resistance (RθJL = 20 °C/W), and DO-204AC mechanical compatibility with legacy through-hole PCB layouts.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds its breakdown threshold (VBR = 64.6–71.4 V), it avalanches rapidly to limit transient energy across protected nodes. Its glass-passivated junction ensures stable leakage (<1.0 μA at 58.1 V) and repeatable clamping behavior.
It delivers 600 W peak pulse power per 10/1000 μs waveform with 0.01% duty cycle, supports 100 A non-repetitive forward surge (8.3 ms half-sine), and maintains operation from –55 °C to +175 °C junction temperature - critical for under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 64.6 V min / 71.4 V max at 1 mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| Stand-off Voltage (VWM) | 58.1 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| Clamping Voltage (VC) | ≤92.0 V at 6.5 A IPPM - limits transient voltage seen by downstream ICs during 10/1000 μs surge |
| Peak Pulse Power (PPPM) | 600 W - sustains high-energy transients without failure, enabling robust protection in 12 V/24 V systems |
| Package | DO-204AC (DO-15) - industry-standard axial-leaded through-hole package with 0.300" lead spacing and UL 94 V-0 molding |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
| Thermal Resistance (RθJL) | 20 °C/W - enables effective heat transfer from junction to leads, supporting sustained surge handling in compact layouts |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case with matte tin-plated leads solderable per J-STD-002. Cathode identified by color band on one end; anode is unmarked lead.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked lead) | Forward current entry / low-side reference node | Connected to ground or low-impedance return path in uni-directional clamp configuration |
| Cathode (banded lead) | Reverse-biased clamping node | Connected to protected line (e.g., battery rail, sensor supply); conducts avalanche current during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance and low leakage drift over temperature and lifetime |
| 600 W peak pulse power (10/1000 μs) | Withstands ISO 7637-2 Pulse 1/2a/3a transients in 12 V automotive systems without degradation |
| AEC-Q101 qualification | Validates suitability for automotive control units, body electronics, and powertrain interfaces requiring zero-failure field reliability |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., load dump, inductive switching), improving system immunity |
| UL 94 V-0 compliant molding | Prevents flame propagation in enclosed automotive modules and industrial enclosures during fault conditions |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between battery rail and ground, clamping surges within microseconds. Use Value: Limits voltage to ≤92.0 V during 6.5 A transients, preventing damage to MCU power supplies and CAN transceivers. |
Use Scenario: Safeguarding analog sensor inputs (e.g., pressure, temperature) in PLC I/O modules exposed to field wiring transients. IC Role / Device Role / Timing Role: Front-end protection device on signal lines, absorbing ESD and inductive kickback before conditioning circuitry. Use Value: Clamps 1 kV EFT bursts to <92.0 V with sub-nanosecond response, preserving ADC accuracy and avoiding latch-up. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeds |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters subjected to lightning-induced surges on mains input. IC Role / Device Role / Timing Role: Standby-mode protector on +5 V/+12 V output rails, triggered only during abnormal line events. Use Value: Withstands 600 W pulses without degradation, enabling single-device cost-effective compliance with IEC 61000-4-5 Level 3. |
Use Scenario: DC feed protection in PoE-powered base stations and remote radio units operating from -48 V telecom supplies. IC Role / Device Role / Timing Role: Reverse-polarity and surge guard on -48 V input, leveraging uni-directional blocking capability. Use Value: Blocks reverse connection up to 58.1 V while clamping positive transients to ≤92.0 V, eliminating need for separate polarity protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | DO-214AA (SMB) surface-mount package; 64 V VWM, 71.1 V VBR min, 100 W PPPM | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a due to lower power rating | Select when board space is constrained and surge energy is ≤100 W; requires re-layout for SMT placement. |
| 1.5KE68A | DO-201AD package; identical VBR/VC specs but 1.5 kW PPPM; no AEC-Q101 qualification | Higher power headroom but lacks automotive reliability validation and tighter thermal resistance (RθJL = 30 °C/W) | Choose for industrial power supplies where AEC-Q101 is not required and higher surge margin is needed. |
Compared with SMBJ64A and 1.5KE68A, P6KE68HE3/73 uniquely balances AEC-Q101 qualification, 600 W surge capability, and DO-204AC through-hole compatibility - making it optimal for cost-sensitive, high-reliability automotive and industrial replacements where legacy footprint retention matters.
Availability
P6KE68HE3/73 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power feeds requiring stable component supply with long-term lifecycle support.
Supply support for P6KE68HE3/73 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, MOSFETs, and protection devices with emphasis on reliability and application-specific performance.
The P6KE series targets cost-effective, high-surge-capability transient protection for automotive, industrial, and consumer power systems - prioritizing ruggedness, thermal stability, and standardized packaging.
FAQ
What is the clamping voltage of the P6KE68HE3/73 under standard surge conditions?
The P6KE68HE3/73 clamps to a maximum of 92.0 V at 6.5 A peak pulse current (IPPM) using the industry-standard 10/1000 μs waveform. This value is measured at room temperature and represents the upper bound of voltage imposed on protected circuits during transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the P6KE68HE3/73 suitable for automotive applications?
Yes, the P6KE68HE3/73 is AEC-Q101 qualified and specifically designed for automotive use. Its 175 °C maximum junction temperature, robust DO-204AC package, and validated performance under ISO 7637-2 transients make it appropriate for engine control units, body control modules, and infotainment power rails where reliability under harsh thermal and electrical stress is mandatory.
How does the P6KE68HE3/73 differ from the commercial-grade P6KE68A-E3/73?
The P6KE68HE3/73 differs from P6KE68A-E3/73 solely in qualification level: the "H" suffix denotes AEC-Q101 qualification, including extended temperature cycling, humidity bias, and mechanical shock testing. Both share identical electrical specs (VBR, VC, PPPM) and DO-204AC packaging, but only P6KE68HE3/73 carries automotive reliability certification.
What is the maximum continuous reverse voltage the P6KE68HE3/73 can withstand?
The P6KE68HE3/73 has a maximum stand-off voltage (VWM) of 58.1 V - the highest DC or RMS voltage it can block continuously without exceeding 1.0 μA reverse leakage current. This allows safe operation on nominal 48 V or 36 V systems with margin, while still triggering reliably above 64.6 V during transients.
Does the P6KE68HE3/73 require a heatsink for standard operation?
No external heatsink is required for standard transient suppression duty cycles. With RθJL = 20 °C/W and PD = 5.0 W (at TL = 75 °C), the P6KE68HE3/73 dissipates surge energy primarily through its leads into the PCB copper. Adequate 1 oz. copper pour (≥100 mm² per lead) provides sufficient thermal mass for repetitive 0.01% duty cycle events without exceeding 175 °C junction temperature.
P6KE68HE3/73 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):
- 55.1V
- Voltage - Breakdown (Min):
- 61.2V
- Voltage - Clamping (Max) @ Ipp:
- 98V
- Current - Peak Pulse (10/1000µs):
- 6.1A
- 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)
P6KE68HE3/73 FAQ
1.How can I place an order for P6KE68HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE68HE3/73 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 P6KE68HE3/73 reliable?
The price and inventory of P6KE68HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE68HE3/73 is usually 5 days.
3.What payment methods are accepted for P6KE68HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE68HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE68HE3/73?
P6KE68HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE68HE3/73 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 P6KE68HE3/73?
For technical support, including P6KE68HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE68HE3/73 requirements.
6.How does Aetrix verify that P6KE68HE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE68HE3/73 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 P6KE68HE3/73 meets industry standards.
7.What is the process for return or replacement of P6KE68HE3/73?
All P6KE68HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE68HE3/73, 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 P6KE68HE3/73 part is unused and in its original packaging.
Return procedure for P6KE68HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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