My Inquiry
My Account
STMicroelectronics P6KE12ARL
- Part No.:
- P6KE12ARL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE12ARL.pdf
- Description:
- TVS DIODE 10VWM 21.7VC DO15
- Quantity:
- Payment:
- Shipping:
Inventory:6,598
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P6KE12ARL from STMicroelectronics is a unidirectional 600 W transient voltage suppression diode in DO-15 package, designed for IEC 61000-4-2 ESD protection (30 kV air/contact) and IEC 61000-4-4 surge immunity (4 kV level 4). It features 12 V nominal breakdown voltage (VBR = 11.4–12.6 V), 16.7 V clamping voltage at 36 A peak pulse current (10/1000 µs), and operates up to 175 °C junction temperature. It is used in AC/DC power input stages of industrial SMPS and telecom interface circuits.
For engineers reviewing the P6KE12ARL datasheet, P6KE12ARL pinout, P6KE12ARL application, or P6KE12ARL equivalent, key selection criteria include clamping voltage margin vs. protected IC VCC, leakage current (<0.5 µA at 10 V), thermal derating above 25 °C, and DO-15 PCB footprint compatibility with high-reliability power supplies.
Technical Context
This unidirectional TVS diode uses planar junction technology to achieve low leakage (<0.5 µA at VRM = 10 V) and stable VBR temperature coefficient (αT = 7.8 × 10−4/°C). Its dynamic resistance (RD = 0.114 Ω) ensures predictable clamping behavior under 10/1000 µs surges up to 36 A.
The device complies with UL 497B (QVGQ2.E136224), IEC 61000-4-2 (30 kV), and IEC 61000-4-4 (4 kV), and is rated for 100 A non-repetitive forward surge (10 ms) - enabling robust front-end protection in AC line and DC bus applications where junction temperature may reach 175 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/typ/max) | 11.4 / 12.0 / 12.6 V at 1 mA - defines precise overvoltage triggering threshold for 12 V rail protection |
| VCL @ IPP | 16.7 V at 36 A (10/1000 µs) - maximum clamped voltage seen by downstream circuit during surge |
| PPP | 600 W (10/1000 µs) - peak power handling capacity under standard lightning surge waveform |
| IR @ VRM | ≤0.5 µA at 10 V - ultra-low reverse leakage preserves efficiency in high-impedance bias networks |
| Tj max | 175 °C - enables operation in thermally constrained enclosures without derating below full rating |
| Package | DO-15 (JEDEC DO-204AC) - industry-standard axial leaded package with 6.4 mm body length and 0.8 mm lead diameter |
Pinout & Package
DO-15 package: axial-leaded, glass-passivated planar junction diode with cathode band marking. Body length 6.4 mm, lead diameter 0.8 mm, lead spacing 28.5 mm. Matte tin-plated leads compliant with J-STD-002 and MIL-STD-750 Method 2026.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry terminal during forward conduction | Connected to ground or low-side return path in unidirectional clamp configuration |
| Cathode (banded end) | Current exit terminal during reverse avalanche | Connected to protected line (e.g., +12 V rail); clamps to ~16.7 V during surge |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 ESD immunity | 30 kV air discharge / 30 kV contact discharge - exceeds Level 4 for industrial equipment |
| Dynamic resistance (RD) | 0.114 Ω - ensures tight clamping voltage control across surge current range |
| Junction temperature capability | 175 °C continuous operation - supports high-ambient designs without external heatsinking |
| UL 497B recognition | File QVGQ2.E136224 - certified for use in telecom/data line surge protectors per UL standards |
Applications
| Industrial SMPS Input Protection | Telecom Line Interface |
|---|---|
Use Scenario: 12 V DC input stage of DIN-rail mounted AC/DC converter exposed to load dump and coupling transients. IC Role / Device Role: Unidirectional TVS placed between +12 V rail and chassis ground to clamp surges before they reach PWM controller and gate drivers. Use Value: Clamps 36 A surge to ≤16.7 V, preserving 12 V ICs with 20 V absolute max rating while maintaining <0.5 µA leakage at operating voltage. |
Use Scenario: RS-485 data line termination in outdoor base station equipment subject to induced lightning surges. IC Role / Device Role: Primary protection device on VCC supply rail feeding isolated transceiver, coordinated with secondary GDT and series impedance. Use Value: Withstands 4 kV IEC 61000-4-4 bursts and 30 kV ESD events without degradation, enabling >10-year field reliability in harsh environments. |
| Automotive Body Control Module | Medical Power Supply Input |
Use Scenario: 12 V battery-supplied microcontroller power rail in BCM exposed to ISO 7637-2 pulse 1 and pulse 2a transients. IC Role / Device Role: First-line transient suppressor upstream of LDO regulator, sized to absorb 600 W pulses without thermal runaway. Use Value: Maintains 175 °C Tj rating and passes JESD22-A108 temperature cycling, supporting AEC-Q200-aligned qualification paths. |
Use Scenario: Secondary-side 12 V output of medical-grade AC/DC adapter requiring reinforced isolation and low EMI. IC Role / Device Role: Low-capacitance (<50 pF at 1 V), low-leakage TVS on output rail to prevent false resets during ESD testing per IEC 60601-1-2. Use Value: Delivers 30 kV ESD immunity with <0.5 µA leakage at 10 V, eliminating noise-induced latch-up in safety-critical monitoring circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ12A | DO-214AA package, 600 W rating, VBR = 13.3–14.7 V, VCL = 19.9 V @ 30.1 A | Surface-mount only; higher clamping voltage reduces margin for 12 V systems | Preferred for space-constrained PCBs where axial DO-15 layout is impractical |
| 1N6267A | DO-41 package, same VBR range, but lower Tj max = 150 °C and no UL 497B listing | Lacks telecom-specific certification and high-temp reliability validation | Acceptable for cost-sensitive consumer applications where 175 °C operation is not required |
Compared with SMBJ12A and 1N6267A, P6KE12ARL provides superior thermal robustness (175 °C vs. 150 °C), tighter clamping (16.7 V vs. 19.9 V), and UL 497B certification - making it the preferred choice for industrial and telecom power rails demanding long-term surge endurance.
Availability
P6KE12ARL is available at Aetrix Electronics and suitable for industrial SMPS input protection, telecom line interface circuits, and automotive body control modules requiring stable component supply and long-lifecycle support.
Supply support for P6KE12ARL 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 intelligent power, analog, MEMS, and microcontroller solutions for industrial, automotive, and consumer markets.
P6KE12ARL belongs to the P6KE series of planar-junction TVS diodes engineered specifically for high-reliability surge protection in power conversion and interface circuits where low leakage, high junction temperature, and international safety certifications are mandatory.
FAQ
What is the maximum clamping voltage of P6KE12ARL under a 10/1000 µs surge?
The maximum clamping voltage (VCL) is 16.7 V at 36 A peak pulse current for a 10/1000 µs waveform, measured at Tamb = 25 °C. This value increases with junction temperature at a rate defined by αT = 7.8 × 10−4/°C, reaching ~18.2 V at Tj = 125 °C per the VCL vs. Tj formula in DS0681.
Is P6KE12ARL suitable for bidirectional signal line protection?
No - P6KE12ARL is a unidirectional TVS diode intended for DC power rail protection. For bidirectional signal lines (e.g., RS-485, USB), the P6KE12CA variant must be used, which has symmetrical breakdown in both polarities and identical clamping performance in either direction.
Does P6KE12ARL meet RoHS and REACH requirements?
Yes - P6KE12ARL is manufactured in STMicroelectronics' ECOPACK2-compliant process, meeting RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006. Lead finish is matte tin plating, and the device carries no SVHC substances above threshold per latest declaration.
What is the recommended PCB footprint for DO-15 mounting?
The recommended footprint uses 2.5 mm pad diameter, 5.0 mm pad center-to-center spacing, and 0.8 mm drill size for axial leads. Thermal relief is advised on both pads, and copper area ≥2 cm² per lead reduces Rth(j-a) to ~3.5 °C/W per Figure 12 in DS0681, improving surge energy dissipation.
P6KE12ARL 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):
- 10V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 21.7V
- Current - Peak Pulse (10/1000µs):
- 184A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 2300pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE12ARL FAQ
1.How can I place an order for P6KE12ARL through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE12ARL 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 P6KE12ARL reliable?
The price and inventory of P6KE12ARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE12ARL is usually 5 days.
3.What payment methods are accepted for P6KE12ARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE12ARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE12ARL?
P6KE12ARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE12ARL 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 P6KE12ARL?
For technical support, including P6KE12ARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE12ARL requirements.
6.How does Aetrix verify that P6KE12ARL is sourced from the original manufacturer or authorized distributors?
All P6KE12ARL 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 P6KE12ARL meets industry standards.
7.What is the process for return or replacement of P6KE12ARL?
All P6KE12ARL units undergo pre-shipment inspection (PSI). If there is an issue with P6KE12ARL, 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 P6KE12ARL part is unused and in its original packaging.
Return procedure for P6KE12ARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE12ARL Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
