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STMicroelectronics P6KE30ARL
- Part No.:
- P6KE30ARL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE30ARL.pdf
- Description:
- TVS DIODE 26VWM 53.5VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:4,050
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Product details
Overview
P6KE30ARL from STMicroelectronics is a unidirectional 600 W transient voltage suppression diode in DO-15 package, rated for 30 V breakdown (VBR = 28.5–31.5 V), 41.5 V clamping voltage (VCL) at 14.5 A peak pulse current, and 175 °C maximum junction temperature. It delivers robust ESD and surge protection per IEC 61000-4-2 (30 kV contact/air) and IEC 61000-4-4 (4 kV level 4) in power supply input stages and industrial sensor interfaces.
For engineers reviewing the P6KE30ARL datasheet, P6KE30ARL pinout, P6KE30ARL application, or P6KE30ARL equivalent, key selection criteria include its 30 V stand-off voltage, 41.5 V clamping performance under 10/1000 µs surge, DO-15 mechanical compatibility, low dynamic resistance (0.69 Ω), and high-temperature operation up to 175 °C in space-constrained DC power rails.
Technical Context
This unidirectional TVS diode uses planar junction technology to achieve low leakage (<0.5 µA at 24.3 V), stable VBR temperature coefficient (αT = 9.7 × 10−4/°C), and reliable clamping across −55 °C to +175 °C operating range. Its DO-15 package supports manual and reflow soldering with JEDEC-compliant thermal profiles.
The device operates as a shunt protector: during transients exceeding VBR, it avalanches to clamp voltage at ≤41.5 V while diverting up to 14.5 A (10/1000 µs) or 75 A (8/20 µs). Its 0.69 Ω dynamic resistance ensures predictable VCL rise under varying surge currents.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 28.5 / 30 / 31.5 V - Ensures reliable turn-on above normal 24 V rail while avoiding false triggering |
| VCL @ IPP | 41.5 V at 14.5 A (10/1000 µs) - Limits downstream IC voltage stress to safe levels during surges |
| Peak Pulse Power | 600 W (10/1000 µs), 4 kW (8/20 µs) - Handles common lightning-induced and switching transients |
| Dynamic Resistance RD | 0.69 Ω - Enables precise VCL prediction: VCL = VBR(max) + RD × IPP |
| Leakage Current IRM | ≤0.5 µA at 24.3 V - Minimizes standby power loss in battery-backed or low-power systems |
| Junction Temp Range | −55 °C to +175 °C - Supports operation in automotive engine compartments and industrial motor drives |
Pinout & Package
DO-15 (JEDEC DO-204AC) axial-leaded package with cathode band marking. Leads are matte tin-plated for solderability and RoHS compliance. Package dimensions: A = 6.05–6.75 mm length, B = 26–31 mm body length, C = 2.95–3.53 mm diameter, D = 0.71–0.88 mm lead diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry during forward conduction; grounded reference in unidirectional configuration | Connected to system ground or low-side return path to enable clamping to GND |
| Cathode (banded end) | Avalanche conduction terminal; reverse-biased during protection event | Connected to protected line (e.g., 24 V input); conducts surge current to ground when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 ESD immunity | 30 kV air/contact discharge - Eliminates need for external ESD diodes in front-end protection |
| High-temperature reliability | Rated for continuous operation at Tj = 175 °C - Suitable for under-hood automotive and high-power SMPS designs |
| Low dynamic resistance | 0.69 Ω - Reduces VCL variation across production lot and temperature |
| Planar junction construction | Enables low leakage (<0.5 µA) and stable VBR drift - Critical for precision analog sensor front-ends |
| UL 497B certified | QVGQ2.E136224 file number - Validates suitability for telecom and industrial signal line protection |
Applications
| Industrial PLC Input Protection | 24 V DC Power Supply Ingress |
|---|---|
Use Scenario: Protecting digital input channels of programmable logic controllers against field-wiring induced surges and ESD. IC Role / Device Role / Timing Role: Shunt TVS diode placed between input terminal and chassis ground. Use Value: Clamps transients to ≤41.5 V, preventing damage to optocoupler input stages and enabling EN 61000-4-4 level 4 compliance. |
Use Scenario: Safeguarding the primary side of 24 V industrial switch-mode power supplies from load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional transient suppressor on DC input rail before bulk capacitor and controller IC. Use Value: Absorbs 600 W (10/1000 µs) surges without degradation, maintaining system uptime in factory automation environments. |
| Automotive Body Control Module | IoT Sensor Node Power Rail |
Use Scenario: Protecting LIN bus power pins and microcontroller supply inputs in under-dash modules exposed to battery transients. IC Role / Device Role / Timing Role: Standoff voltage-matched TVS (30 V) placed directly at connector entry point. Use Value: Withstands ISO 7637-2 pulse 1 (−150 V) and pulse 3a/b (±100 V) by clamping within spec at 175 °C ambient. |
Use Scenario: Securing 3.3 V or 5 V power rails of wireless sensor nodes deployed in harsh outdoor locations. IC Role / Device Role / Timing Role: Low-leakage (0.5 µA) TVS integrated into compact PCB layout near LDO input. Use Value: Prevents ESD-induced latch-up in ultra-low-power MCUs while adding <0.01 µA quiescent load at 3.3 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A | Same VBR (28.5–31.5 V), lower PPP (400 W), SMA package (surface-mount) | Requires PCB real estate for SMD placement; unsuitable for through-hole legacy designs | Select when board space is constrained and reflow assembly is available |
| 1.5KE30A | Higher PPP (1500 W), same DO-15 package, higher VCL (48.5 V), larger footprint | Better for high-energy surges but increases downstream voltage stress | Select when protecting against severe lightning-induced transients (>1 kV) in AC-coupled systems |
Compared with SMAJ30A and 1.5KE30A, P6KE30ARL offers optimal balance of 600 W surge handling, DO-15 through-hole compatibility, and tight 41.5 V clamping-making it ideal for cost-sensitive industrial 24 V systems where mechanical robustness and thermal margin are prioritized over extreme energy absorption.
Availability
P6KE30ARL is available at Aetrix Electronics and suitable for industrial PLC input protection, 24 V DC power supply ingress, and automotive body control module designs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for P6KE30ARL 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 silicon solutions for automotive, industrial, and consumer markets since 1987.
P6KE30ARL belongs to ST's P6KE series of planar TVS diodes, engineered specifically for high-reliability DC power line and signal interface protection in harsh thermal and electrical environments.
FAQ
What is the maximum clamping voltage of P6KE30ARL under a 10/1000 µs surge?
The maximum clamping voltage (VCL) is 41.5 V at 14.5 A peak pulse current for a 10/1000 µs waveform, measured at Tamb = 25 °C. This value rises predictably with junction temperature using αT = 9.7 × 10−4/°C, reaching ~45.2 V at Tj = 125 °C.
Can P6KE30ARL be used in bidirectional signal lines?
No-P6KE30ARL is unidirectional (denoted by "A" suffix) and must be installed with cathode toward the protected line. For bidirectional protection (e.g., RS-485, USB), use P6KE30CA, which features symmetrical breakdown in both polarities and identical VBR and VCL ratings.
What is the recommended PCB footprint for DO-15 mounting?
ST specifies a minimum copper area of 1 cm² under each lead to achieve Rth(j-a) ≤ 3.5 °C/W. The recommended footprint uses 2.5 mm diameter pads spaced 10 mm apart, with 0.8 mm drill holes and 70 µm Cu thickness on FR4, per Figure 12 in DS0681 Rev 9.
Does P6KE30ARL meet UL 497B for telecom protection?
Yes-P6KE30ARL is certified under UL 497B with file number QVGQ2.E136224, validating its suitability for secondary circuit protection in telecommunications equipment, including DSL and PoE-powered devices, per ANSI/UL 497B Edition 5.
P6KE30ARL 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):
- 26V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 53.5V
- Current - Peak Pulse (10/1000µs):
- 75A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1075pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE30ARL FAQ
1.How can I place an order for P6KE30ARL through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE30ARL 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 P6KE30ARL reliable?
The price and inventory of P6KE30ARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE30ARL is usually 5 days.
3.What payment methods are accepted for P6KE30ARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE30ARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE30ARL?
P6KE30ARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE30ARL 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 P6KE30ARL?
For technical support, including P6KE30ARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE30ARL requirements.
6.How does Aetrix verify that P6KE30ARL is sourced from the original manufacturer or authorized distributors?
All P6KE30ARL 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 P6KE30ARL meets industry standards.
7.What is the process for return or replacement of P6KE30ARL?
All P6KE30ARL units undergo pre-shipment inspection (PSI). If there is an issue with P6KE30ARL, 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 P6KE30ARL part is unused and in its original packaging.
Return procedure for P6KE30ARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE30ARL Tags
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