onsemi P6KE36CARL
- Part No.:
- P6KE36CARL
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- T-18, Axial
- Datasheet:
-
P6KE36CARL.pdf
- Description:
- TVS DIODE
- Quantity:
- Payment:

- Shipping:

Inventory:14,824
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Product details
Overview
P6KE36CARL from ON Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in axial-leaded Surmetic−40 package, designed for parallel clamping of high-energy transients. It features 36 V working peak reverse voltage (VRWM), 49.9 V maximum clamping voltage at 12 A peak pulse current, and 600 W peak pulse power rating at 1 ms. Used in power supplies, industrial controls, and medical equipment to protect sensitive ICs from ESD and lightning-induced surges.
For engineers reviewing the P6KE36CARL datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage margin vs. protected circuit's absolute maximum rating, surge current capability under system-level IEC 61000-4-5 waveforms, thermal derating at elevated lead temperature, and UL 497B recognition for isolated loop protection compliance.
Technical Context
The P6KE36CARL operates as a bidirectional Zener-based TVS, with symmetrical breakdown behavior enabling AC line and differential signal protection without polarity concerns. Its clamping action begins at 34.2 V (min VBR @ 1 mA), stabilizes at 36 V nominal breakdown, and limits transient voltage to ≤49.9 V at 12 A IPP - critical for safeguarding 3.3 V/5 V/12 V logic interfaces and analog front-ends.
It exhibits <1 ns response time, low zener impedance, and 0.099 %/°C temperature coefficient of VBR. UL 497B recognition confirms suitability for isolated loop circuit protection, distinguishing it from generic surge components lacking safety certification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 30.8 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/typ/max) | 34.2 / 36.0 / 37.8 V @ 1 mA - defines precise breakdown threshold for design margining |
| VC @ IPP | 49.9 V @ 12 A - peak clamped voltage during 1 ms 8/20 µs surge, directly limiting stress on downstream ICs |
| PPK | 600 W @ 1 ms - peak surge energy handling capacity per non-repetitive pulse |
| IR @ VRWM | 5 µA - leakage current level ensuring minimal standby power loss and signal integrity |
| ESD Rating | Class 3 (>16 kV HBM) - qualifies for robust electrostatic discharge immunity in handling and operation |
| Response Time | <1 ns - enables suppression before transient propagates into protected circuitry |
Pinout & Package
Surmetic−40 axial-leaded package (Case 17), DO-15 compatible, with cathode band marking that does not indicate polarity for bidirectional operation. Leads are corrosion-resistant, solderable, rated for 230°C for 10 seconds at 1/16″ from case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode | Bidirectional terminal pair | No functional polarity - either end connects to line or ground; symmetric clamping in both directions |
| Lead 1 / Lead 2 | Current path terminals | Low-inductance axial leads optimized for transient conduction; mechanical mounting allows any orientation |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines, differential buses (e.g., RS-485), and floating references without polarity constraints |
| UL 497B recognition | Validated for isolated loop circuit protection - meets safety requirements where galvanic isolation must be preserved during surge events |
| 600 W peak pulse rating | Withstands IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges when combined with appropriate series impedance |
| Low temperature coefficient | 0.099 %/°C ensures stable clamping voltage across −55°C to +175°C operating range, critical for automotive and industrial environments |
| Surmetic−40 construction | Void-free thermoset plastic package provides mechanical robustness, moisture resistance, and consistent thermal performance in reflow/soldering |
Applications
| Industrial Power Supply Input Protection | Medical Equipment ESD Shielding |
|---|---|
Use Scenario: AC/DC power supply input stage exposed to lightning-induced surges on mains lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed across input rectifier output or DC bus, shunting surge current away from bulk capacitor and controller IC. Use Value: Limits transient voltage to ≤49.9 V, preventing overvoltage failure of 63 V-rated electrolytic capacitors and 36 V-input PMICs. | Use Scenario: Patient-connected monitoring devices requiring IEC 60601-1 compliance and immunity to operator ESD events. IC Role / Device Role / Timing Role: Bidirectional TVS on isolated sensor interface lines (e.g., ECG leads), referenced to earth ground via safety capacitor. Use Value: UL 497B recognition validates safe operation in isolated loops; <1 ns response prevents ESD coupling into analog front-end amplifiers. |
| RS-485 Transceiver Bus Protection | Programmable Logic Controller (PLC) I/O Module |
Use Scenario: Industrial fieldbus node subjected to cable discharge events and ground potential differences. IC Role / Device Role / Timing Role: Differential-line TVS across A/B bus pins of RS-485 transceiver, with common-mode choke and series resistors. Use Value: Symmetric 36 V VRWM matches typical RS-485 common-mode range; 49.9 V clamping protects transceiver's ±15 V absolute max rating. | Use Scenario: Digital input module receiving 24 V DC signals from factory floor sensors prone to inductive switching transients. IC Role / Device Role / Timing Role: Clamp device across input optocoupler or Schmitt trigger, referenced to system ground. Use Value: 600 W surge rating handles repetitive 24 V coil-switching spikes; 5 µA leakage avoids false triggering of high-impedance inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA | Surface-mount SMB package; same 36 V VRWM, 58.1 V VC @ 10.3 A; lower 600 W rating but higher surge current density | Requires PCB redesign for SMD layout; better suited for space-constrained, automated assembly | Select when board space is limited and reflow compatibility is required; verify thermal pad design for 75°C+ ambient |
| 1.5KE36CA | Higher 1500 W peak power; larger DO-201 package; 51.3 V VC @ 29.2 A; identical VRWM and bidirectional function | Used where higher surge energy (e.g., outdoor telecom) demands greater margin beyond IEC 61000-4-5 Level 4 | Select when legacy through-hole footprint allows larger case and system-level testing requires >600 W headroom |
Compared with SMBJ36CA and 1.5KE36CA, the P6KE36CARL offers optimal balance of axial-leaded manufacturability, UL 497B certification for isolated circuits, and proven 600 W surge handling - making it preferred for certified industrial and medical power entry designs where leaded reliability and safety validation are mandatory.
Availability
P6KE36CARL is available at Aetrix Electronics and suitable for industrial power supplies, medical diagnostic equipment, RS-485 communication nodes, and PLC I/O modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6KE36CARL 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
ON Semiconductor is a global semiconductor manufacturer specializing in power management, analog, sensor, and discrete devices for automotive, industrial, and cloud power applications.
The P6KE36CARL belongs to the P6KE6.8CA Series of 600 W axial-leaded TVS diodes, engineered specifically for cost-effective, high-reliability transient suppression in safety-critical and high-surge industrial systems.
FAQ
What is the clamping voltage of the P6KE36CARL and how is it measured?
The P6KE36CARL has a maximum clamping voltage (VC) of 49.9 V at 12 A peak pulse current (IPP), measured using the standardized 1 ms exponential decay waveform per Figure 3 in the datasheet. This value represents the upper limit of voltage seen by protected circuitry during a transient event and is critical for ensuring downstream components remain within their absolute maximum ratings.
Is the P6KE36CARL suitable for bidirectional AC line protection?
Yes, the P6KE36CARL is explicitly designed as a bidirectional TVS diode (denoted by the "CA" suffix), with symmetrical breakdown characteristics enabling effective clamping on both positive and negative half-cycles. Its cathode band marking does not imply polarity, confirming its use in AC-coupled or floating differential applications such as telecom lines and isolated sensor interfaces.
Does the P6KE36CARL have safety certification for industrial use?
Yes, the P6KE36CARL carries UL 497B recognition (File #E116110, QVGV2 category) for isolated loop circuit protection - a requirement for many industrial and medical safety standards. This certification covers performance under strike voltage breakdown, endurance conditioning, dielectric withstand, and discharge testing, distinguishing it from uncertified surge components.
What is the thermal derating behavior of the P6KE36CARL above 75°C?
The P6KE36CARL has a steady-state power dissipation (PD) of 5 W at TL ≤ 75°C with 3/8″ lead length, derating linearly at 50 mW/°C above that temperature. Its junction-to-lead thermal resistance (RJL) is 20 °C/W, meaning a 10°C rise in lead temperature increases junction temperature by 200°C - necessitating careful heatsinking or spacing in high-ambient environments.
How does the P6KE36CARL compare to the unidirectional P6KE36A variant?
The P6KE36CARL differs from the unidirectional P6KE36A in having symmetrical breakdown behavior and no functional polarity, making it suitable for AC or differential signal protection. The P6KE36A clamps only in reverse bias and conducts freely in forward bias - limiting it to DC rail protection. Both share identical VRWM, VBR, and VC specifications, but only the CA version supports bidirectional surge suppression.
P6KE36CARL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- T-18, Axial
- Series:
- P6KE6.8CA
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 30.8V (Max)
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 12A
- 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:
- Axial
P6KE36CARL FAQ
1.How can I place an order for P6KE36CARL through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE36CARL 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 P6KE36CARL reliable?
The price and inventory of P6KE36CARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE36CARL is usually 5 days.
3.What payment methods are accepted for P6KE36CARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE36CARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE36CARL?
P6KE36CARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE36CARL 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 P6KE36CARL?
For technical support, including P6KE36CARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE36CARL requirements.
6.How does Aetrix verify that P6KE36CARL is sourced from the original manufacturer or authorized distributors?
All P6KE36CARL 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 P6KE36CARL meets industry standards.
7.What is the process for return or replacement of P6KE36CARL?
All P6KE36CARL units undergo pre-shipment inspection (PSI). If there is an issue with P6KE36CARL, 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 P6KE36CARL part is unused and in its original packaging.
Return procedure for P6KE36CARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE36CARL Tags

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Diodes Incorporated

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Diodes Incorporated

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Diodes Incorporated

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Diodes Incorporated

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Nexperia USA Inc.

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Toshiba Semiconductor and Storage

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