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onsemi P6KE24ARL
- Part No.:
- P6KE24ARL
- Manufacturer:
- onsemi
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE24ARL.pdf
- Description:
- TVS DIODE 20.5VWM 42.8VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
P6KE24ARL from STMicroelectronics is a unidirectional 600 W transient voltage suppression diode in DO-15 package, with 24 V nominal breakdown voltage (VBR = 21.6–25.2 V), 38.9 V clamping voltage at 13.7 A (10/1000 µs), and 175 °C maximum junction temperature. It delivers 30 kV ESD protection (IEC 61000-4-2) and is used in DC power input stages of industrial PLCs and telecom power supplies.
For engineers reviewing the P6KE24ARL datasheet, P6KE24ARL pinout, P6KE24ARL application, or P6KE24ARL equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD, peak pulse current handling under 10/1000 µs surge, thermal derating above 25 °C, and DO-15 PCB footprint compatibility with high-reliability SMPS designs.
Technical Context
This TVS diode uses planar silicon junction technology optimized for low leakage (<1 µA at 19.4 V) and stable VBR over temperature (αT = 10 × 10−4/°C). Its unidirectional configuration provides asymmetric clamping-forward conduction only during reverse transients-making it suitable for DC rail protection where polarity is fixed.
The device meets IEC 61000-4-4 level 4 (4 kV) and exceeds IEC 61000-4-2 level 4 (30 kV air/contact discharge). Its dynamic resistance (RD = 0.427 Ω) ensures predictable clamping behavior across pulse durations from 10 µs to 1 ms, validated per JEDEC JESD22-B102 E3 and MIL-STD-750 method 2026.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 21.6 / 24.0 / 25.2 V - defines minimum voltage at which clamping initiates under 1 mA test current; sets lower bound for protected circuit operating margin. |
| VCL @ IPP | 38.9 V at 13.7 A (10/1000 µs) - maximum voltage seen by downstream circuit during worst-case surge; must stay below IC absolute max rating. |
| PPP | 600 W (10/1000 µs) - peak power dissipation capability at Tamb = 25 °C; derates to ~300 W at Tj = 175 °C per Figure 3. |
| IRM max | 1 µA at VRM = 19.4 V - reverse leakage at working voltage; critical for low-power sensor rails and battery-backed circuits. |
| Tj range | −55 to +175 °C - enables operation in automotive engine compartments and industrial motor drives without external heatsinking. |
| RD | 0.427 Ω - dynamic resistance derived from VCL–VBR slope; determines voltage overshoot under fast-rising transients. |
Pinout & Package
DO-15 (JEDEC DO-204AC) axial-leaded package with cathode band marking. Body length: 6.05–6.75 mm; lead diameter: 0.71–0.88 mm; overall length: 26–31 mm. Matte tin-plated leads meet J-STD-002 and MIL-STD-750 method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | DC input return path | Connected to system ground or low-side rail; conducts surge current to earth during reverse-biased clamping event. |
| Cathode (banded end) | Protected line connection | Connected to DC supply rail (e.g., +24 V); blocks normal operation current but avalanches during overvoltage to clamp VOUT. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports robust protection against lightning-induced surges in 24 V industrial control inputs without derating at ambient ≤ 70 °C. |
| 30 kV ESD immunity (IEC 61000-4-2) | Eliminates need for secondary ESD suppressors on front-panel connectors in medical and test equipment. |
| 175 °C max junction temperature | Enables direct mounting on hot-running PCBs near power converters without thermal shutdown or parameter drift. |
| Low dynamic resistance (0.427 Ω) | Reduces clamping voltage overshoot during sub-microsecond transients, improving margin for 3.3 V/5 V logic interfaces. |
Applications
| Industrial PLC Power Input | Telecom DC Power Feed |
|---|---|
Use Scenario: 24 V DC power entry point on programmable logic controller backplane exposed to field wiring induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp protecting upstream DC-DC converter input stage and downstream microcontroller power rails. Use Value: Limits transient voltage to ≤38.9 V during 13.7 A surge, preventing latch-up or gate oxide damage in 24 V-rated power management ICs. | Use Scenario: Central office power feed interface for remote radio units, subject to long-cable coupled lightning energy. IC Role / Device Role / Timing Role: First-line transient suppressor before bulk capacitance and hot-swap controller in -48 V telecom power distribution. Use Value: Absorbs up to 600 W for 1 ms, maintaining <100 ns response time to prevent upstream rectifier failure during 8/20 µs line surges. |
| Automotive Body Control Module | Medical Diagnostic Equipment |
Use Scenario: 12–24 V battery-supplied body control module subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between fuse and main power switch to limit voltage spikes before LDO regulators. Use Value: Withstands 100 A non-repetitive forward surge (IFSM) and maintains VCL < 40 V, preserving 28 V absolute max rating of automotive-grade MCUs. | Use Scenario: Patient-connected sensor signal conditioning board requiring ultra-low leakage and high ESD immunity. IC Role / Device Role / Timing Role: Secondary protection on isolated DC bias rail feeding analog front-end amplifiers and ADC references. Use Value: Delivers <1 µA leakage at 19.4 V, avoiding offset drift in µV-level biomedical measurements while passing 30 kV contact discharge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24A | DO-214AA package; 600 W rating; VBR = 26.7–29.5 V; VCL = 38.9 V @ 15.4 A | Surface-mount form factor requires different PCB layout; higher VBR reduces margin for 24 V systems near upper tolerance. | Select when automated SMT assembly is required and board space is constrained; verify clamping margin with actual 24 V rail tolerance. |
| 1.5KE24A | DO-201AD package; 1500 W rating; VBR = 22.8–25.2 V; VCL = 36.0 V @ 41.7 A | Larger package handles higher single-event energy but has longer lead inductance; less suitable for high-frequency transients. | Choose for legacy through-hole designs needing higher surge capacity; confirm mechanical fit and thermal relief on FR4 board. |
Compared with SMBJ24A and 1.5KE24A, P6KE24ARL offers optimal balance of axial-leaded reliability, precise 24 V clamping, and proven performance in high-temperature industrial environments-making it preferred for field-deployed equipment where serviceability and thermal stability are critical.
Availability
P6KE24ARL is available at Aetrix Electronics and suitable for industrial PLC power inputs, telecom DC feed protection, and automotive body control modules requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for P6KE24ARL 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.
The P6KE series belongs to ST's transient protection portfolio, engineered specifically for high-reliability DC power line protection in harsh environments where long-term stability, low leakage, and wide temperature operation are mandatory.
FAQ
What is the maximum clamping voltage of P6KE24ARL under a 10/1000 µs surge?
The maximum clamping voltage (VCL) is 38.9 V at 13.7 A for a 10/1000 µs waveform, measured at Tamb = 25 °C. This value increases linearly with junction temperature using αT = 10 × 10−4/°C, reaching ~42.5 V at Tj = 125 °C per Equation 2 in DS0681 Rev 9.
Can P6KE24ARL be used in bidirectional signal lines?
No-P6KE24ARL is unidirectional (denoted by "A" suffix) and only clamps reverse-polarity transients. For bidirectional protection (e.g., RS-485, USB D+/D−), use the P6KE24CARL variant ("CA" suffix), which provides symmetrical clamping for both polarities with identical VBR and VCL specs.
What is the recommended PCB pad layout for DO-15 mounting?
ST recommends a footprint matching JEDEC DO-204AC: 2.5 mm pad width, 5.0 mm pad length, 7.5 mm center-to-center spacing, with 1.0 mm solder mask clearance. Thermal relief via copper area under each lead improves Rth(j-a)-Figure 12 shows Rth drops from 4.5 °C/W to 2.1 °C/W with 3 cm² copper per lead on FR4.
Does P6KE24ARL meet UL 497B requirements for telecom surge protection?
Yes-P6KE24ARL carries UL 497B file number QVGQ2.E136224 and complies with UL 497B Section 5.3 for primary protector classification. It satisfies the 4 kV IEC 61000-4-4 level 4 requirement and supports telecom applications requiring UL-listed transient suppression on AC/DC power interfaces.
P6KE24ARL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE, TRANSIL™
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 42.8V
- Current - Peak Pulse (10/1000µs):
- 93A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1250pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
P6KE24ARL FAQ
1.How can I place an order for P6KE24ARL through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE24ARL 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 P6KE24ARL reliable?
The price and inventory of P6KE24ARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE24ARL is usually 5 days.
3.What payment methods are accepted for P6KE24ARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE24ARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE24ARL?
P6KE24ARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE24ARL 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 P6KE24ARL?
For technical support, including P6KE24ARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE24ARL requirements.
6.How does Aetrix verify that P6KE24ARL is sourced from the original manufacturer or authorized distributors?
All P6KE24ARL 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 P6KE24ARL meets industry standards.
7.What is the process for return or replacement of P6KE24ARL?
All P6KE24ARL units undergo pre-shipment inspection (PSI). If there is an issue with P6KE24ARL, 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 P6KE24ARL part is unused and in its original packaging.
Return procedure for P6KE24ARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE24ARL Tags
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