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onsemi P6KE27ARLG
- Part No.:
- P6KE27ARLG
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- T-18, Axial
- Datasheet:
-
P6KE27ARLG.pdf
- Description:
- TVS DIODE 23.1VWM 37.5VC AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:36,794
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Product details
Overview
P6KE27ARLG from ON Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in axial-leaded Surmetic-40 package, designed for parallel clamping of high-energy transients. It features 27 V breakdown voltage (VBR = 25.7–28.4 V @ IT = 1 A), 37.5 V maximum clamping voltage (VC) at 16 A peak pulse current (IPP), and 600 W peak pulse power rating per 1 ms waveform - used to protect DC power rails and signal lines in industrial power supplies and medical equipment.
For engineers reviewing the P6KE27ARLG datasheet, pinout, applications, or equivalent options, key selection criteria include working peak reverse voltage (VRWM = 23.1 V), low leakage (<5 µA @ VRWM), sub-1 ns response time, UL 497B recognition for isolated loop protection, and Pb-free tape-and-reel packaging (4000 pcs/reel).
Technical Context
The P6KE27ARLG operates as a silicon avalanche diode with unidirectional polarity, triggered when reverse voltage exceeds its specified breakdown range. Its clamping action limits transient overvoltage to ≤37.5 V at 16 A, enabling robust protection of downstream ICs without sacrificing steady-state leakage performance (<5 µA @ 23.1 V).
It complies with UL 497B for isolated loop circuit protection and exhibits a temperature coefficient of 0.096 %/°C for VBR, ensuring stable breakdown behavior across −55°C to +150°C operating range. Thermal resistance from junction-to-lead is 20 °C/W, supporting reliable power dissipation under pulsed conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 23.1 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR @ IT=1 A | 25.7–28.4 V - Validated avalanche breakdown range ensures predictable turn-on threshold |
| VC @ IPP=16 A | 37.5 V - Clamped voltage during 1 ms transient limits stress on protected circuitry |
| IPP | 16 A - Peak pulse current handling capacity per non-repetitive 1 ms waveform |
| PPK | 600 W - Peak transient power dissipation capability at TL ≤ 25°C |
| Leakage @ VRWM | <5 µA - Minimal reverse bias current preserves system efficiency and signal integrity |
| Response Time | <1 ns - Enables suppression of fast-rising ESD and lightning-induced surges |
Pinout & Package
Surmetic-40 axial-leaded plastic package (Case 017AA), cathode indicated by band. Leads are solderable at 260°C for 10 seconds at 1/16″ from case. Mounting position unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal / Ground reference in unidirectional clamp | Connected to system ground or low-side return path; carries surge current during clamping |
| Cathode | Reverse-biased input / Protected line connection | Connected to line being protected (e.g., +24 V rail); avalanche conduction occurs here during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| UL 497B Recognition | Validated for isolated loop circuit protection - meets strike voltage, endurance, dielectric withstand, and discharge test requirements |
| ESD Robustness | Class 3 HBM (>16 kV) - withstands human-body-model ESD events without degradation |
| Pb-Free Tape & Reel | P6KE27ARLG variant supplied in RoHS-compliant, 4000-unit reel format - supports automated SMT assembly |
| Thermal Stability | 0.096 %/°C VBR tempco - enables predictable clamping across industrial temperature range (−55°C to +150°C) |
| Low Capacitance | Typical ~100 pF @ VRWM - minimizes signal distortion on data lines and high-speed interfaces |
Applications
| Industrial Power Supply Protection | Medical Equipment Input Stage |
|---|---|
Use Scenario: 24 V DC input rail in programmable logic controller (PLC) power module exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across input terminals to clamp surges before they reach upstream regulators and microcontrollers. Use Value: Limits transient voltage to ≤37.5 V at 16 A, preventing latch-up or permanent damage to 3.3 V/5 V logic and analog front-end ICs. | Use Scenario: Patient-connected sensor interface in portable ECG monitor subjected to ESD and defibrillator recovery spikes. IC Role / Device Role / Timing Role: Primary overvoltage protector on isolated analog input path, compliant with UL 497B for patient safety-critical isolation barriers. Use Value: Provides Class 3 HBM ESD immunity and validated surge endurance - critical for meeting IEC 60601-1 and AAMI EC13 requirements. |
| Communication System DC Bias Lines | Numerical Control Signal Conditioning |
Use Scenario: +12 V bias supply for RS-485 transceivers in factory-floor fieldbus networks subject to cable-induced lightning surges. IC Role / Device Role / Timing Role: Parallel-connected TVS on transceiver VCC rail to absorb common-mode transients coupled onto twisted-pair cabling. Use Value: Sub-1 ns response ensures clamping before transceiver internal protection fails; 600 W rating handles multi-kV surge energy per IEC 61000-4-5. | Use Scenario: Analog feedback loop in CNC motor drive where encoder signals pass through long cables near high-current switching circuits. IC Role / Device Role / Timing Role: Low-leakage (≤5 µA) TVS on differential encoder supply line to prevent false triggering while maintaining signal fidelity. Use Value: Maintains <5 µA reverse leakage at 23.1 V, avoiding offset errors in precision 24-bit ADCs used for position sensing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | Surface-mount SMB package; lower peak power (600 W same, but shorter thermal time constant); VRWM = 24 V; VC = 38.9 V @ 15.4 A | Requires PCB rework for SMT layout; better suited for space-constrained designs with automated assembly | Select when board real estate is limited and leaded through-hole mounting is not required |
| 1.5KE27CA | Higher peak power (1500 W); bidirectional configuration; same VRWM/VBR range; axial lead, but larger DO-201 package | Protects AC or bidirectional signals; over-spec'd for simple DC rail clamping; higher cost and footprint | Select only if bidirectional surge immunity or >600 W margin is explicitly required |
Compared with SMBJ24A and 1.5KE27CA, the P6KE27ARLG offers optimal balance of axial-leaded manufacturability, UL 497B compliance for isolated systems, and precise 23.1 V working voltage - making it preferred for industrial DC power inputs where regulatory certification and through-hole reliability are prioritized over miniaturization or bidirectional capability.
Availability
P6KE27ARLG is available at Aetrix Electronics and suitable for industrial power supplies, medical equipment input stages, communication system DC bias lines, and numerical control signal conditioning requiring stable component supply and full traceability.
Supply support for P6KE27ARLG 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, cloud, and medical markets.
The P6KE27ARLG belongs to the P6KE6.8A Series of 600 W unidirectional TVS diodes, engineered specifically for cost-effective, high-reliability transient suppression in industrial and safety-critical equipment with UL 497B recognition.
FAQ
What is the working peak reverse voltage (VRWM) of the P6KE27ARLG?
The P6KE27ARLG has a working peak reverse voltage (VRWM) of 23.1 V, meaning it remains in high-impedance blocking mode up to this DC or continuous peak voltage level. This value ensures compatibility with standard 24 V industrial systems while providing sufficient margin before avalanche conduction begins. The P6KE27ARLG's VRWM is confirmed in the official ON Semiconductor datasheet revision 10, Table on page 2.
How does the P6KE27ARLG differ from the P6KE27A variant?
The P6KE27ARLG is the Pb-free, tape-and-reel packaged version of the P6KE27A, with identical electrical specifications including VRWM = 23.1 V, VBR = 25.7–28.4 V, and VC = 37.5 V @ 16 A. The "RLG" suffix denotes RoHS-compliant plating and 4000-unit reel packaging, whereas P6KE27A is supplied in 1000-unit boxes with standard SnPb leads. Both share the same Surmetic-40 axial package (Case 017AA).
Is the P6KE27ARLG certified for use in medical equipment?
Yes, the P6KE27ARLG is UL 497B recognized (File #E210057, QVGQ2 category) for isolated loop circuit protection - a requirement for many patient-connected and safety-isolated medical devices per IEC 60601-1. This certification covers surge endurance, dielectric withstand, and discharge testing. The P6KE27ARLG's Class 3 HBM ESD rating (>16 kV) further supports its use in ECG, infusion pump, and diagnostic equipment input stages.
What is the maximum clamping voltage (VC) of the P6KE27ARLG under surge conditions?
The P6KE27ARLG has a maximum clamping voltage (VC) of 37.5 V when subjected to its rated peak pulse current of 16 A (1 ms waveform). This value represents the upper limit of voltage seen by downstream components during worst-case transient events. It is measured per Figure 4 in the datasheet and ensures protected ICs experience no more than 37.5 V, well below typical 40 V absolute maximum ratings of industrial-grade regulators and microcontrollers.
Can the P6KE27ARLG be used in bidirectional signal lines?
No, the P6KE27ARLG is a unidirectional TVS diode and must not be used on bidirectional or AC-coupled signal lines without external polarity control. Its cathode-band marking indicates fixed polarity: cathode connects to the line being protected, anode to ground. For bidirectional protection (e.g., RS-232, USB D+/D−), a dedicated bidirectional part such as P6KE27C or SMBJ24CA is required. Using P6KE27ARLG in reverse-biased AC applications risks catastrophic failure due to lack of forward conduction path.
P6KE27ARLG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- T-18, Axial
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 23.1V
- Voltage - Breakdown (Min):
- 25.7V
- Voltage - Clamping (Max) @ Ipp:
- 37.5V
- Current - Peak Pulse (10/1000µs):
- 16A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
P6KE27ARLG FAQ
1.How can I place an order for P6KE27ARLG through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE27ARLG 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 P6KE27ARLG reliable?
The price and inventory of P6KE27ARLG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE27ARLG is usually 5 days.
3.What payment methods are accepted for P6KE27ARLG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE27ARLG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE27ARLG?
P6KE27ARLG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE27ARLG 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 P6KE27ARLG?
For technical support, including P6KE27ARLG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE27ARLG requirements.
6.How does Aetrix verify that P6KE27ARLG is sourced from the original manufacturer or authorized distributors?
All P6KE27ARLG 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 P6KE27ARLG meets industry standards.
7.What is the process for return or replacement of P6KE27ARLG?
All P6KE27ARLG units undergo pre-shipment inspection (PSI). If there is an issue with P6KE27ARLG, 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 P6KE27ARLG part is unused and in its original packaging.
Return procedure for P6KE27ARLG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE27ARLG Tags
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