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Diodes Incorporated P6KE68A-T
- Part No.:
- P6KE68A-T
- Manufacturer:
- Diodes Incorporated
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE68A-T.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:5,457
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Product details
Overview
P6KE68A-T from Diodes Incorporated is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 58.1V reverse standoff voltage (VRWM), 64.6V minimum breakdown voltage (VBR), 92.0V maximum clamping voltage (VC) at 6.5A peak pulse current (IPP), and DO-15 package with glass-passivated die construction - used in industrial power supplies and automotive body control modules.
For engineers reviewing the P6KE68A-T datasheet, P6KE68A-T pinout, P6KE68A-T application, or P6KE68A-T equivalent, key selection criteria include clamping voltage margin relative to protected IC VDD, 6.5A surge current handling under 10/1000µs waveform, unidirectional polarity configuration, and DO-15 through-hole mounting compatibility with legacy PCB layouts.
Technical Context
This TVS operates as a voltage-clamped shunt protector: when transient voltage exceeds its breakdown threshold (64.6–71.4V), it avalanches into low-impedance conduction to divert surge energy away from downstream circuitry. Its 92.0V clamping voltage ensures protected devices rated ≤80V DC remain within safe operating limits during 600W, 1ms pulses.
The device uses a glass-passivated junction for stable leakage performance (<5.0µA at VRWM) and fast response time (<1.0ps), enabling effective suppression of ESD (IEC 61000-4-2) and lightning-induced surges (IEC 61000-4-5). Thermal resistance values (RθJA = 75°C/W, RθJL = 15°C/W) support reliable operation up to +175°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600W - sustains single 1ms transient events without failure, suitable for IEC 61000-4-5 Level 3/4 surge testing. |
| Reverse Standoff Voltage (VRWM) | 58.1V - maximum continuous DC voltage before significant leakage; sets upper limit for protected rail voltage. |
| Breakdown Voltage (VBR) | 64.6V min @ 1.0mA - precise avalanche initiation point ensuring predictable clamping onset. |
| Clamping Voltage (VC) | 92.0V max @ 6.5A - defines worst-case voltage seen by protected load during full-rated surge. |
| Peak Pulse Current (IPP) | 6.5A @ 10/1000µs - quantifies maximum surge current the device can safely clamp and divert. |
| Package | DO-15 - axial-leaded through-hole package with 0.4g mass, UL 94V-0 molded plastic housing. |
| Junction Temperature Range | −55°C to +175°C - enables deployment in under-hood automotive and industrial environments. |
Pinout & Package
DO-15 package: axial-leaded, glass-passivated silicon junction, cathode-banded end marking. Leads are tin-plated, solderable per MIL-STD-202 Method 208, with 9.5mm lead length for thermal derating calculations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or lowest potential point; completes shunt path during avalanche conduction. |
| Cathode | Protected line input | Connected to line being protected (e.g., +12V rail); carries full surge current during clamping. |
Key Features
| Feature | Design Value |
|---|---|
| 600W peak pulse rating | Enables robust protection against high-energy transients including ISO 7637-2 pulse 5a (load dump) in 12V automotive systems. |
| Glass-passivated die construction | Ensures stable leakage current (<5.0µA) and long-term reliability under thermal cycling and humidity stress. |
| Fast response time | Sub-nanosecond turn-on prevents voltage overshoot beyond clamping level during ESD events. |
| RoHS-compliant lead finish | Lead-free matte tin plating meets EU RoHS 2 (2011/65/EU) and supports automated solder reflow processes. |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module |
|---|---|
Use Scenario: 24V DC input stage of programmable logic controller (PLC) power supply exposed to inductive switching transients. IC Role / Device Role / Timing Role: Shunt-type transient voltage suppressor placed between input rail and chassis ground. Use Value: Limits transient excursions to ≤92.0V, preventing damage to upstream rectifier and downstream DC-DC controller ICs rated for 36V absolute maximum. | Use Scenario: LIN bus line protection in door module ECU subjected to battery disconnect spikes and ESD contact discharge. IC Role / Device Role / Timing Role: Unidirectional clamping diode on LIN signal line referenced to vehicle ground. Use Value: Clamps negative-going transients below −0.7V (forward conduction) and positive surges to ≤92.0V, preserving LIN transceiver integrity per ISO 17987-4. |
| Telecom DC Feeder Protection | Renewable Energy Charge Controller |
Use Scenario: 48V DC power feed line in remote base station cabinet subject to induced lightning surges. IC Role / Device Role / Timing Role: Primary-stage TVS on DC input before bulk capacitor and hot-swap controller. Use Value: Absorbs 600W surges per IEC 61000-4-5 Combination Wave (1.2/50µs voltage, 8/20µs current), maintaining system uptime. | Use Scenario: PV array input stage of solar charge controller exposed to rapid voltage reversals and lightning-induced transients. IC Role / Device Role / Timing Role: Unidirectional overvoltage clamp on MPPT input rail referenced to system ground. Use Value: Prevents MOSFET gate oxide rupture and op-amp input damage by limiting transient voltage to 92.0V while sustaining 6.5A peak current. |
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-T | Surface-mount SMB package; 64V VRWM; 100W peak power (lower energy handling) | Requires PCB redesign for SMT layout; unsuitable for high-energy 600W surges | Select only if space-constrained and surge energy is limited to ≤100W (e.g., data line protection). |
| 1.5KE68A-T | Same DO-15 package; 68V VRWM; 1500W peak power; higher clamping voltage (118V) | Higher clamping compromises protection margin for 80V-rated loads | Choose when higher surge energy tolerance is required and protected IC VDD > 100V. |
Compared with SMBJ64A-T and 1.5KE68A-T, P6KE68A-T uniquely balances 600W surge capability, 92.0V clamping, and DO-15 through-hole compatibility - making it optimal for cost-sensitive, high-reliability industrial and automotive power rail protection where legacy board designs preclude SMT migration.
Availability
P6KE68A-T is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom DC feeder systems, and renewable energy charge controllers requiring stable component supply across extended production lifecycles.
Supply support for P6KE68A-T 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
The P6KE series belongs to Diodes' transient voltage suppressor product line, engineered specifically for high-energy, single-pulse overvoltage protection in automotive, industrial, and telecom infrastructure applications where reliability under extreme electrical stress is critical.
FAQ
Is P6KE68A-T still in active production?
No - Diodes Incorporated has officially discontinued the P6KE68A-T and the entire P6KE series (DS21502 Rev. 20-4 states "OBSOLETE – PART DISCONTINUED"). Aetrix Electronics maintains limited legacy stock and supports last-time-buy programs with full traceability and documentation for ongoing production continuity.
What is the difference between P6KE68A-T and P6KE68CA-T?
P6KE68A-T is unidirectional (cathode-banded), clamping only positive transients above 64.6V while blocking reverse voltage. P6KE68CA-T is bidirectional, symmetrically clamping both polarities - used where AC-coupled or floating signal lines require protection in both directions, such as RS-485 or CAN bus interfaces.
Can P6KE68A-T be used in place of P6KE68A (bulk)?
Yes - the "-T" suffix denotes tape-and-reel packaging (4,000 units per reel), while the base part number P6KE68A refers to bulk packaging. Electrical, thermal, and mechanical specifications are identical; only packaging and handling differ. Both share DO-15 package dimensions, marking, and RoHS compliance.
What is the maximum steady-state power dissipation for P6KE68A-T?
At TL = +75°C with 9.5mm lead length mounted on a 40mm² copper land area, the steady-state power dissipation is 5.0W. Derating is linear above +75°C ambient, reaching zero at +175°C junction temperature - consistent with its RθJA of 75°C/W and RθJL of 15°C/W ratings.
P6KE68A-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 58.1V
- Voltage - Breakdown (Min):
- 64.6V
- Voltage - Clamping (Max) @ Ipp:
- 92V
- Current - Peak Pulse (10/1000µs):
- 6.5A
- 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-15
P6KE68A-T FAQ
1.How can I place an order for P6KE68A-T through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE68A-T 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 P6KE68A-T reliable?
The price and inventory of P6KE68A-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE68A-T is usually 5 days.
3.What payment methods are accepted for P6KE68A-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE68A-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE68A-T?
P6KE68A-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE68A-T 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 P6KE68A-T?
For technical support, including P6KE68A-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE68A-T requirements.
6.How does Aetrix verify that P6KE68A-T is sourced from the original manufacturer or authorized distributors?
All P6KE68A-T 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 P6KE68A-T meets industry standards.
7.What is the process for return or replacement of P6KE68A-T?
All P6KE68A-T units undergo pre-shipment inspection (PSI). If there is an issue with P6KE68A-T, 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 P6KE68A-T part is unused and in its original packaging.
Return procedure for P6KE68A-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE68A-T Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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