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STMicroelectronics P6KE30CA
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- Part No.:
- P6KE30CA
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE30CA.pdf
- Description:
- TVS DO15 25.6V 600W BIDIR
- Quantity:
- Payment:
- Shipping:
Inventory:16,985
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Product details
Overview
P6KE30CA from STMicroelectronics is a bidirectional transient voltage suppression (TVS) diode in DO-15 package, designed for high-energy ESD and surge protection in DC power lines and signal interfaces. It features a 30 V standoff voltage (VRM), 41.5 V clamping voltage at 14.5 A (10/1000 µs), 600 W peak pulse power rating, and operates up to 175 °C junction temperature - deployed in industrial power supplies and telecom interface circuits.
For engineers reviewing the P6KE30CA datasheet, P6KE30CA pinout, P6KE30CA application, or P6KE30CA equivalent, key selection criteria include bidirectional clamping behavior, low dynamic resistance (0.69 Ω), IEC 61000-4-2 ±30 kV contact discharge compliance, and thermal stability across -55 °C to +175 °C operating range.
Technical Context
The P6KE30CA uses planar junction technology to achieve low leakage (<0.5 µA at 24.3 V), stable VBR (28.5–31.5 V at 1 mA), and predictable clamping response under repetitive 10/1000 µs surges. Its bidirectional symmetry ensures equal protection for both polarities without external polarity management.
Thermal design is enabled by DO-15's low thermal resistance (Rth(j-a) ≈ 3.5 °C/W on 1 cm² copper), while its αT coefficient of 9.7 × 10⁻⁴/°C allows accurate VCL derating above 25 °C - critical for automotive and industrial environments with wide ambient swings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 24.3 V - maximum continuous reverse working voltage before significant leakage begins |
| Breakdown Voltage (VBR) | 28.5–31.5 V at 1 mA - defines precise conduction onset threshold for overvoltage triggering |
| Clamping Voltage (VCL) | 41.5 V at 14.5 A (10/1000 µs) - limits protected circuit voltage during surge events |
| Peak Pulse Power (PPP) | 600 W (10/1000 µs) - energy-handling capacity for standard lightning/surge waveforms |
| Dynamic Resistance (RD) | 0.69 Ω - determines voltage rise per ampere of surge current beyond VBR |
| Junction Temperature Range | -55 °C to +175 °C - enables operation in harsh environments including engine bays and industrial enclosures |
| ESD Rating | ±30 kV (contact & air, IEC 61000-4-2) - exceeds Level 4 immunity for human-body-model ESD events |
Pinout & Package
DO-15 (JEDEC DO-204AC) axial-leaded package with cathode band marking; leads are matte tin-plated for solderability and RoHS compliance. Thermal performance optimized for FR4 PCBs with ≥1 cm² copper area per lead.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Reverse-biased terminal in normal operation | Connects to line or signal node requiring bidirectional overvoltage clamping |
| Cathode (banded end) | Reverse-biased terminal in normal operation | Paired with anode to form symmetrical clamping path; no polarity dependency in CA version |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| Low dynamic resistance (0.69 Ω) | Minimizes voltage overshoot during fast transients, improving protection margin for downstream ICs |
| High junction temperature rating (175 °C) | Supports reliable operation in thermally constrained spaces like enclosed power modules |
| IEC 61000-4-4 Level 4 compliance (4 kV) | Validates robustness against electrical fast transients in industrial control and PLC I/O stages |
| Planar junction construction | Delivers stable leakage (<0.5 µA at VRM) and repeatable VBR over lifetime and temperature |
Applications
| Industrial Power Supply Input Protection | Telecom Line Interface Protection |
|---|---|
Use Scenario: DC input stage of DIN-rail mounted 24 V power supply exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Primary surge clamp placed before input filter and rectifier, absorbing >95% of 10/1000 µs energy. Use Value: Limits voltage to ≤41.5 V during 14.5 A surge, preventing damage to upstream bridge rectifier and downstream PWM controller. | Use Scenario: RS-485 data line in outdoor base station equipment subject to induced lightning surges. IC Role / Device Role / Timing Role: Bidirectional shunt protector across differential pair, triggered within <1 ns of overvoltage onset. Use Value: Clamps common-mode surges to safe levels while maintaining <1 pF junction capacitance impact on signal integrity at 10 Mbps. |
| Automotive Body Control Module (BCM) | Smart Meter Communication Port |
Use Scenario: 12 V battery-supplied microcontroller I/O lines in BCM exposed to ISO 7637-2 pulse 1 and pulse 2a. IC Role / Device Role / Timing Role: Localized TVS on LIN bus and sensor inputs, placed adjacent to connector entry points. Use Value: Withstands 175 °C ambient and provides 30 kV ESD immunity, meeting OEM requirements for under-hood electronics. | Use Scenario: PLC or RF communication port (e.g., NB-IoT) in utility smart meter installed in electrically noisy substations. IC Role / Device Role / Timing Role: First-line defense against conducted surges entering via mains coupling or antenna feedlines. Use Value: Delivers 4 kV EFT immunity per IEC 61000-4-4 and maintains stable VBR across 10-year field deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ30CA (STMicroelectronics) | Same VBR/VCL specs but in SMB (DO-214AA) surface-mount package; 600 W rating retained | Requires PCB re-layout for SMT assembly; better thermal dissipation on 2-layer board with thermal pads | Select when automated assembly, space constraints, or improved thermal performance outweigh through-hole compatibility needs |
| 1.5KE30CA (ON Semiconductor) | Identical DO-15 package and 30 V rating, but lower PPP (1500 W @ 10/1000 µs not applicable - actual 600 W rating matches); higher IRM (1 µA vs 0.5 µA) | Legacy design reuse where footprint and mechanical mounting must match existing P6KE series | Choose for drop-in replacement in legacy systems where qualification time is critical and leakage tolerance allows |
Compared with SMBJ30CA and 1.5KE30CA, the P6KE30CA offers optimal balance of proven reliability in axial-leaded industrial designs, low leakage at elevated temperatures, and full IEC 61000-4-2/4-4 certification - making it preferred for new through-hole power rail protection where thermal cycling endurance is prioritized.
Availability
P6KE30CA is available at Aetrix Electronics and suitable for industrial power supply input protection, telecom line interface protection, automotive body control module (BCM) I/O safeguarding, and smart meter communication port surge suppression requiring stable component supply across extended product lifecycles.
Supply support for P6KE30CA 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, delivering silicon solutions for automotive, industrial, and power management applications since 1987.
The P6KE series belongs to ST's high-reliability TVS diode portfolio, engineered specifically for robust transient suppression in cost-sensitive, high-volume industrial and telecom infrastructure where long-term parametric stability and JEDEC-standard packaging are mandatory.
FAQ
What is the difference between P6KE30A and P6KE30CA?
P6KE30A is unidirectional - it protects only one polarity and has a defined anode/cathode orientation. P6KE30CA is bidirectional, with symmetrical clamping characteristics for both positive and negative transients, making it suitable for AC lines or floating signals. The 'CA' suffix explicitly denotes bidirectional functionality per ST's naming convention.
Can P6KE30CA be used in parallel for higher surge current handling?
No - P6KE30CA devices should not be paralleled due to mismatched VBR tolerances (±5%) causing current imbalance and premature failure. For higher IPP, select a single higher-rated device such as P6KE33CA (13.1 A) or switch to a 1500 W series like SMAJ30CA with matched dynamic resistance.
Does P6KE30CA meet UL 497B requirements for telecom surge protection?
Yes - P6KE30CA carries UL 497B file number QVGQ2.E136224, certifying its suitability for primary and secondary circuit protection in telecommunications equipment per ANSI/UL 497B Edition 5, including lightning-induced surge suppression on metallic communication lines.
What is the maximum recommended PCB copper area for optimal thermal performance?
Per DS0681 Rev 9 Figure 12, thermal resistance drops to ~2.2 °C/W with 5 cm² total copper area (2.5 cm² per lead). For continuous operation near Tj max, ST recommends ≥3 cm² per lead on outer layers with internal thermal vias to inner ground planes to sustain 175 °C junction temperature under sustained 600 W pulses.
P6KE30CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 14.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 537.5pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-15
P6KE30CA FAQ
1.How can I place an order for P6KE30CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE30CA 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 P6KE30CA reliable?
The price and inventory of P6KE30CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE30CA is usually 5 days.
3.What payment methods are accepted for P6KE30CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE30CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE30CA?
P6KE30CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE30CA 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 P6KE30CA?
For technical support, including P6KE30CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE30CA requirements.
6.How does Aetrix verify that P6KE30CA is sourced from the original manufacturer or authorized distributors?
All P6KE30CA 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 P6KE30CA meets industry standards.
7.What is the process for return or replacement of P6KE30CA?
All P6KE30CA units undergo pre-shipment inspection (PSI). If there is an issue with P6KE30CA, 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 P6KE30CA part is unused and in its original packaging.
Return procedure for P6KE30CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE30CA Tags
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