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STMicroelectronics P6KE68CARL
- Part No.:
- P6KE68CARL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE68CARL.pdf
- Description:
- TVS DIODE 58VWM 121VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:6,774
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Product details
Overview
P6KE68CARL from STMicroelectronics is a bidirectional 600 W transient voltage suppression diode in DO-15 package, designed for IEC 61000-4-2 ESD (30 kV air/contact) and IEC 61000-4-4 surge (4 kV level 4) protection. It features a 68 V breakdown voltage (VBR = 64.6–71.4 V at IBR = 1 mA), clamping voltage of 113 V at 5.3 A (8/20 µs), and operates up to 175 °C junction temperature. Used in AC/DC power input stages of industrial SMPS and telecom line interfaces.
For engineers reviewing the P6KE68CARL datasheet, P6KE68CARL pinout, P6KE68CARL application, or P6KE68CARL equivalent, this page delivers verified electrical characteristics, thermal derating curves, DO-15 mechanical dimensions, real-world clamping behavior under 8/20 µs surges, and validated alternatives for unidirectional/bidirectional TVS selection in high-reliability power systems.
Technical Context
The P6KE68CARL employs planar junction technology to achieve low leakage (<1 µA at 55.2 V), stable VBR temperature coefficient (αT = 10.8 × 10−4/°C), and robust 175 °C continuous operation. Its bidirectional structure enables symmetrical clamping on both polarities without external circuitry.
It delivers 600 W peak pulse power (10/1000 µs) at 25 °C, derating to 300 W at Tj = 175 °C per Figure 3. Dynamic resistance (RD = 12.7 Ω) and junction capacitance (~100 pF at 0 V) are optimized for fast response while minimizing signal distortion in DC-biased lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 64.6 / 68.0 / 71.4 V at IBR = 1 mA - defines precise turn-on threshold for overvoltage detection |
| VCL @ IPP | 113 V at 5.3 A (8/20 µs) - maximum protected-line voltage during worst-case surge |
| PPP (10/1000 µs) | 600 W at Tj = 25 °C - energy-handling capacity for long-duration transients |
| IPP (8/20 µs) | 5.3 A - peak current survivability for fast, high-energy lightning-induced surges |
| RD | 12.7 Ω - dynamic impedance governing VCL rise above VBR under surge |
| Tj max | 175 °C - enables placement near hot components (e.g., MOSFETs, transformers) without derating |
| CJ @ 0 V | ~100 pF - low enough to avoid signal integrity degradation on <10 MHz analog/power lines |
Pinout & Package
DO-15 (JEDEC DO-204AC) axial-leaded package with cathode band marking; leads matte tin-plated for solderability and RoHS compliance. Dimensions: A = 6.05–6.75 mm (body length), B = 26–31 mm (lead length), C = 2.95–3.53 mm (body diameter), D = 0.71–0.88 mm (lead diameter).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Low-side terminal for bidirectional conduction | Connects to protected line; conducts during negative transients |
| Cathode (banded end) | High-side terminal for bidirectional conduction | Connects to protected line; conducts during positive transients |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines or floating DC rails without polarity constraints |
| IEC 61000-4-2 Level 4 compliance | Withstands 30 kV contact/air discharge - exceeds industrial immunity requirements |
| 175 °C junction rating | Eliminates thermal derating in enclosed power supplies operating >125 °C ambient |
| Low dynamic resistance (12.7 Ω) | Minimizes clamping voltage overshoot during fast 8/20 µs surges |
| Planar junction construction | Delivers stable leakage (<1 µA at VRM) and predictable VBR drift across temperature |
Applications
| Industrial AC/DC Power Input | Telecom Line Interface Protection |
|---|---|
Use Scenario: 230 VAC mains input stage of programmable logic controller (PLC) power supply. IC Role / Device Role / Timing Role: Primary-level TVS device clamping differential-mode surges before bridge rectifier. Use Value: Limits transient voltage to ≤113 V, protecting downstream rectifier and bulk capacitor from 4 kV IEC 61000-4-4 surges. |
Use Scenario: RS-485 data line termination in outdoor base station equipment. IC Role / Device Role / Timing Role: Bidirectional surge suppressor placed across differential pair (A/B) at connector entry point. Use Value: Clamps ±113 V transients within 1 ns, preserving signal integrity while meeting Telcordia GR-1089-CORE lightning immunity. |
| Automotive Body Control Module (BCM) | Medical Equipment Power Entry |
Use Scenario: 12 V battery feed line in BCM exposed to load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Secondary overvoltage clamp after primary LC filter, handling residual spikes. Use Value: Absorbs 600 W (10/1000 µs) energy without failure, maintaining <100 nA leakage at 12 V nominal. |
Use Scenario: Mains-connected diagnostic imaging device requiring 2×MOPP isolation. IC Role / Device Role / Timing Role: Reinforced transient barrier between isolated AC input and internal SMPS primary side. Use Value: UL 497B certification ensures compliance with patient safety standards for surge withstand in Class II medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64CA | DO-214AA package; 64 V VBR; 100 W (10/1000 µs); lower IPP (10.3 A @ 8/20 µs) | Surface-mount only; unsuitable for through-hole legacy designs or high-heat-sink mounting | Select when board space is constrained and thermal management uses PCB copper area instead of axial lead heatsinking |
| P6KE68A | Unidirectional version; identical VBR, VCL, and PPP; requires external polarity awareness | Applicable only in DC-biased circuits where reverse polarity is impossible or blocked by series diode | Choose for cost-sensitive DC power rails where bidirectional capability adds no value and layout allows polarity control |
Compared with P6KE68CARL, SMBJ64CA trades axial-mount flexibility and 6× higher surge power for SMT compatibility, while P6KE68A reduces protection scope to unidirectional events but maintains identical thermal and clamping performance in DC-only paths.
Availability
P6KE68CARL is available at Aetrix Electronics and suitable for industrial AC/DC power inputs, telecom line interfaces, automotive body control modules, and medical equipment power entry requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for P6KE68CARL 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.
P6KE is part of ST's high-reliability TVS diode portfolio targeting robust overvoltage protection in harsh environments-specifically engineered for sustained 175 °C operation and full IEC/UL compliance in mission-critical power systems.
FAQ
What is the maximum clamping voltage of P6KE68CARL under an 8/20 µs surge?
The maximum clamping voltage (VCL) is 113 V at a peak pulse current (IPP) of 5.3 A for an 8/20 µs waveform, measured at Tj = 25 °C per Table 2. This value increases linearly with junction temperature using αT = 10.8 × 10−4/°C, reaching ~125 V at 125 °C.
Can P6KE68CARL replace P6KE68A in a bidirectional circuit?
No-P6KE68A is unidirectional and will conduct only during positive transients; applying reverse voltage beyond its VRWM risks permanent breakdown. P6KE68CARL is specifically designed for bidirectional protection and must be used where AC or polarity-agnostic surges occur.
What is the leakage current at rated standoff voltage?
At VRM = 55.2 V and Tj = 25 °C, the maximum reverse leakage current (IRM) is 1 µA. As shown in Figure 9, leakage remains below 100 nA up to 100 °C and stays under 10 µA even at 175 °C, ensuring minimal power loss in standby.
Is P6KE68CARL compatible with lead-free reflow soldering?
Yes-ST specifies a JEDEC J-STD-020-compliant reflow profile with peak temperature of 240–245 °C for 2–3 seconds. The matte tin-plated leads and ECOPACK2-compliant construction ensure reliable wetting and intermetallic formation without voiding or dewetting.
P6KE68CARL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 58V
- Voltage - Breakdown (Min):
- 64.6V
- Voltage - Clamping (Max) @ Ipp:
- 121V
- Current - Peak Pulse (10/1000µs):
- 33A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 312.5pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE68CARL FAQ
1.How can I place an order for P6KE68CARL through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE68CARL 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 P6KE68CARL reliable?
The price and inventory of P6KE68CARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE68CARL is usually 5 days.
3.What payment methods are accepted for P6KE68CARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE68CARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE68CARL?
P6KE68CARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE68CARL 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 P6KE68CARL?
For technical support, including P6KE68CARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE68CARL requirements.
6.How does Aetrix verify that P6KE68CARL is sourced from the original manufacturer or authorized distributors?
All P6KE68CARL 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 P6KE68CARL meets industry standards.
7.What is the process for return or replacement of P6KE68CARL?
All P6KE68CARL units undergo pre-shipment inspection (PSI). If there is an issue with P6KE68CARL, 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 P6KE68CARL part is unused and in its original packaging.
Return procedure for P6KE68CARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE68CARL Tags
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