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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > TVS Diodes

STMicroelectronics P6KE15ARL

Name: P6KE15ARL
Brand: STMicroelectronics
SKU: P6KE15ARL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: P6KE15ARL

Manufacturer:: STMicroelectronics

Category:: TVS Diodes

Package:: DO-204AC, DO-15, Axial

Datasheet:: P6KE15ARL.pdf

Description:: TVS DIODE 12.8VWM 27.2VC DO15

Quantity:: RFQ Add To RFQ list

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Inventory:2,703

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Product details

Overview

P6KE15ARL from STMicroelectronics is a unidirectional 600 W transient voltage suppression diode in DO-15 package, rated for 15 V breakdown (V_BR = 14.3–15.8 V at 1 mA), 21.2 V clamping voltage (V_CL) at 28 A peak pulse current (I_PP), and operates up to 175 °C junction temperature. It protects DC power rails in industrial SMPS against IEC 61000-4-2 ESD (30 kV air/contact) and IEC 61000-4-4 fast transients (4 kV).

For engineers reviewing the P6KE15ARL datasheet, P6KE15ARL pinout, P6KE15ARL application, or P6KE15ARL equivalent, this TVS diode is selected for robust overvoltage protection in high-reliability 12–24 V systems where low leakage (<0.5 µA at 12.2 V), stable V_BR drift (α_T = 8.4 × 10⁻⁴/°C), and high surge capability at elevated T_j are critical.

Technical Context

This planar-junction unidirectional TVS uses silicon avalanche technology to clamp transient voltages within nanoseconds. Its dynamic resistance (R_D = 0.193 Ω) ensures minimal overshoot during 10/1000 µs surges, while thermal impedance (Z_th(j-a) ≈ 100 °C/W for short pulses) supports sustained operation at T_j = 175 °C.

The device complies with IEC 61000-4-2 Level 4 (30 kV), IEC 61000-4-4 Level 4 (4 kV), and UL 497B for telecom surge protection. Its DO-15 package enables through-hole mounting on FR4 PCBs with 70 µm copper, delivering R_th(j-a) ≈ 3.5 °C/W with 5 cm² copper area per lead.

Key Specifications

Parameter	Value and Actual Design Meaning
V_BR (min/typ/max)	14.3 / 15.0 / 15.8 V at I_BR = 1 mA - defines precise turn-on threshold for 12 V nominal rail protection
V_CL @ I_PP	21.2 V at 28 A (10/1000 µs) - limits downstream IC voltage stress below 24 V absolute maximum rating
P_PP	600 W (10/1000 µs) - sustains repeated surges without degradation in industrial ambient conditions
I_R @ V_RM	≤0.5 µA at 12.2 V - prevents measurable leakage in battery-backed or low-power standby circuits
T_j max	175 °C - enables use in enclosed enclosures or near heat sources without derating
α_T	8.4 × 10⁻⁴/°C - predicts <0.5% V_BR shift across −55 to +175 °C operating range
C_J @ 0 V	≈1000 pF at 1 MHz - negligible impact on signal integrity in DC/low-frequency power lines

Pinout & Package

DO-15 (JEDEC DO-204AC) axial-leaded package with cathode band marking. Lead finish: matte tin plating. 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). Mounting: through-hole, 5 mm minimum lead distance from case for 260 °C soldering.

Pin/Terminal	Circuit Role	Design Meaning
Anode (unmarked end)	Current entry during forward conduction	Connected to protected line; conducts only during reverse transient clamping
Cathode (banded end)	Clamping reference node	Connected to ground or lower-potential rail; defines V_CL reference point

Key Features

Feature	Design Value
IEC 61000-4-2 ESD immunity	30 kV contact/air discharge - exceeds Level 4 for industrial equipment certification
Dynamic resistance (R_D)	0.193 Ω - minimizes clamping voltage overshoot during fast-rising transients
High-temperature stability	Rated for full 600 W surge capability at T_j = 175 °C - eliminates thermal derating in hot environments
Low leakage current	≤0.5 µA at 12.2 V - preserves battery life and avoids false triggering in sensing circuits
UL 497B recognition	File QVGQ2.E136224 - validates suitability for telecom/data line surge protection per UL standards

Applications

Industrial SMPS Input Protection

Automotive Body Control Module (BCM) Power Rails

Use Scenario: 24 V DC input stage of DIN-rail mounted switch-mode power supply exposed to load dump and ISO 7637-2 pulses.

IC Role / Device Role / Timing Role: Unidirectional TVS clamps positive transients to ≤21.2 V, protecting rectifier bridge and primary-side controller.

Use Value: Prevents latch-up or destruction of 30 V-rated MOSFETs and controllers during 100 V/100 ms load dump events.

Use Scenario: 12 V supply line feeding microcontroller, CAN transceiver, and relay drivers in vehicle door module.

IC Role / Device Role / Timing Role: Fast-response clamping element absorbing ISO 16750-2 jump-start and alternator ripple surges.

Use Value: Maintains system uptime by limiting bus voltage excursion to 21.2 V during 100 V/50 ms transients, avoiding brownout resets.

Telecom Power Feeds (PSE)

PLC Analog Input Protection

Use Scenario: 48 V DC power feed from PoE++ PSE to remote network equipment with UL 497B compliance requirement.

IC Role / Device Role / Timing Role: Primary surge suppressor on DC input, coordinated with secondary TVS and fuse.

Use Value: Meets UL 497B surge withstand requirements while maintaining <1 µA leakage to avoid PSE detection errors.

Use Scenario: 24 V loop-powered analog input channel (4–20 mA) in hazardous-area PLC I/O module.

IC Role / Device Role / Timing Role: First-line protector against field-wiring induced transients before precision op-amp front-end.

Use Value: Clamps induced surges to 21.2 V before they exceed 24 V rail tolerance of instrumentation amplifier, preserving 16-bit ADC accuracy.

Equivalent & Alternatives

The following parts are listed as comparable options for similar unidirectional TVS diode applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SMBJ15A	Same V_BR (14.3–15.8 V), higher P_PP (600 W), but SMC package (surface-mount); R_D = 0.22 Ω	Requires PCB rework for SMT layout; better thermal performance on large copper pours	Select when board space is constrained and automated assembly is preferred over through-hole.
1N6267A	Legacy DO-15 part; V_BR = 14.3–15.8 V, V_CL = 23.2 V at 26 A, R_D = 0.28 Ω; no UL 497B listing	Lacks UL recognition and fails IEC 61000-4-2 Level 4 (only rated to 15 kV)	Acceptable only for non-certified internal equipment where ESD immunity is not mandated.

Compared with SMBJ15A and 1N6267A, P6KE15ARL delivers superior ESD robustness (30 kV vs. 15–25 kV), lower clamping voltage (21.2 V vs. 23.2 V), and certified UL 497B compliance-making it optimal for safety-critical industrial and telecom deployments requiring regulatory traceability.

Availability

P6KE15ARL is available at Aetrix Electronics and suitable for industrial SMPS input protection, automotive BCM power rails, and telecom power feeds requiring stable component supply, long-term lifecycle support, and UL-compliant surge immunity.

Supply support for P6KE15ARL 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 protection components for industrial, automotive, and consumer markets.

The P6KE series belongs to ST's high-reliability TVS portfolio targeting industrial-grade surge protection, engineered specifically for stable clamping performance across extreme temperature ranges and demanding EMC environments.

FAQ

What is the maximum clamping voltage of P6KE15ARL under a 10/1000 µs surge?

The maximum clamping voltage (V_CL) is 21.2 V at 28 A peak pulse current (I_PP) for a 10/1000 µs waveform, measured at T_amb = 25 °C. This value increases linearly with junction temperature using α_T = 8.4 × 10⁻⁴/°C, reaching ~22.5 V at T_j = 125 °C.

Can P6KE15ARL be used in bidirectional signal lines?

No - P6KE15ARL is unidirectional and must be installed with cathode toward ground. For bidirectional protection (e.g., RS-485, USB), use the P6KE15CA variant, which has symmetrical clamping in both polarities and identical V_BR/V_CL ratings.

What is the leakage current at 12 V reverse bias and 125 °C?

At V_R = 12 V and T_j = 125 °C, leakage current (I_R) is ≤5 µA, per Figure 9 in DS0681 Rev 9. This remains well below 10 µA, ensuring compatibility with low-power monitoring circuits and battery-backed systems.

Is P6KE15ARL RoHS and REACH compliant?

Yes - P6KE15ARL is manufactured in ST's ECOPACK2-compliant process, meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Matte tin lead finish and halogen-free molding compound are confirmed in the official ECOPACK documentation.

P6KE15ARL 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:: 1

Bidirectional Channels:: -

Voltage - Reverse Standoff (Typ):: 12.8V

Voltage - Breakdown (Min):: 14.3V

Voltage - Clamping (Max) @ Ipp:: 27.2V

Current - Peak Pulse (10/1000µs):: 147A (8/20µs)

Power - Peak Pulse:: 600W

Power Line Protection:: No

Applications:: General Purpose

Capacitance @ Frequency:: 1900pF @ 1MHz

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AC (DO-15)

P6KE15ARL FAQ

1.How can I place an order for P6KE15ARL through Aetrix?

Please submit a Request for Quotation (RFQ) for P6KE15ARL 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 P6KE15ARL reliable?

The price and inventory of P6KE15ARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE15ARL is usually 5 days.

3.What payment methods are accepted for P6KE15ARL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE15ARL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for P6KE15ARL?

P6KE15ARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your P6KE15ARL 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 P6KE15ARL?

For technical support, including P6KE15ARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE15ARL requirements.

6.How does Aetrix verify that P6KE15ARL is sourced from the original manufacturer or authorized distributors?

All P6KE15ARL 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 P6KE15ARL meets industry standards.

7.What is the process for return or replacement of P6KE15ARL?

All P6KE15ARL units undergo pre-shipment inspection (PSI). If there is an issue with P6KE15ARL, 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 P6KE15ARL part is unused and in its original packaging.

Return procedure for P6KE15ARL:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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