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STMicroelectronics 1.5KE6V8CARL
- Part No.:
- 1.5KE6V8CARL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE6V8CARL.pdf
- Description:
- TVS DIODE 5.8VWM 13.4VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:3,678
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Product details
Overview
1.5KE6V8CARL from STMicroelectronics is a bidirectional transient voltage suppression (TVS) diode in DO-201 package, designed for high-energy ESD and surge protection. It features a 6.8 V standoff voltage (VRM), 10.5 V clamping voltage (VCL) at 746 A peak pulse current (IPP), and 1500 W peak pulse power (10/1000 µs). It operates up to 175 °C junction temperature and meets IEC 61000-4-2 level 4 (30 kV contact/air discharge) and IEC 61000-4-4 level 4 (4 kV).
For engineers reviewing the 1.5KE6V8CARL datasheet, 1.5KE6V8CARL pinout, 1.5KE6V8CARL application, or 1.5KE6V8CARL equivalent, this part serves as a robust, high-reliability unidirectional/bidirectional TVS solution for DC power rail and signal line protection in industrial power supplies, telecom interfaces, and automotive body electronics where low leakage (<1000 µA at VRM) and thermal stability are critical.
Technical Context
The 1.5KE6V8CARL is a silicon avalanche diode optimized for fast response (<1 ns) to transient overvoltages. Its bidirectional configuration enables symmetric clamping on AC lines or differential signals without polarity constraints, and its planar junction construction ensures stable VBR (6.45–7.14 V) with low dynamic resistance (0.008 Ω) under 8/20 µs surges.
It supports high-temperature operation (Tj = –55 to +175 °C) with minimal parameter drift, enabled by αT = 5.7 × 10⁻⁴/°C temperature coefficient for VBR and VCL. The device complies with J-STD-020 MSL level 1 and UL 497B (QVGQ2.E136224), confirming suitability for reflow-soldered, high-reliability PCB assemblies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Standoff Voltage (VRM) | 6.8 V - Maximum continuous reverse working voltage before breakdown; defines safe operating margin for 5 V or 6 V DC rails. |
| Breakdown Voltage (VBR) | 6.45–7.14 V @ 10 mA - Tight tolerance ensures predictable turn-on during transients; typical 6.8 V nominal value. |
| Clamping Voltage (VCL) | 10.5 V @ 746 A (10/1000 µs) - Limits downstream voltage stress during surge; protects ICs rated ≤12 V. |
| Peak Pulse Power | 1500 W (10/1000 µs) - Sustains high-energy surges common in industrial power inputs and telecom lines. |
| Leakage Current (IRM) | ≤1000 µA @ 6.8 V - Low leakage preserves efficiency in battery-powered or high-impedance sensing circuits. |
| Junction Temperature Range | –55 to +175 °C - Enables deployment in under-hood automotive, industrial motor drives, and outdoor telecom enclosures. |
| ESD Robustness | 30 kV contact & air discharge (IEC 61000-4-2) - Exceeds level 4, eliminating need for additional ESD stages in front-end protection. |
Pinout & Package
1.5KE6V8CARL uses the axial-leaded DO-201 package (8.5–9.5 mm length, 4.8–5.3 mm diameter), with cathode marked by band. As a bidirectional TVS diode, it has no polarity-dependent function-both terminals behave identically under reverse or forward surge conditions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge current entry (negative transient) | Accepts negative-going transients; clamps to ~10.5 V relative to cathode during surge. |
| Cathode | Surge current entry (positive transient) | Accepts positive-going transients; clamps to ~10.5 V relative to anode during surge. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Identical VBR (6.45–7.14 V) and VCL (10.5 V) for both polarities-enables single-device protection of AC lines or differential buses. |
| Low dynamic resistance | 0.008 Ω (8/20 µs) - Minimizes voltage overshoot during fast-rising surges (e.g., lightning-induced), improving system immunity. |
| High-temperature reliability | Rated for Tj = 175 °C with <0.1 %/°C VBR drift - Ensures stable clamping in thermally stressed environments like power converters. |
| UL 497B certification | File QVGQ2.E136224 - Validates use in primary-side telecom and PoE interface protection per safety standards. |
| Matte tin lead finish | Complies with J-STD-002 and JESD 22-B102 E3 - Ensures solderability and whisker resistance for long-life industrial deployments. |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) CAN Bus |
|---|---|
Use Scenario: Protecting 12 V DC input stage of programmable logic controllers (PLCs) against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Primary surge shunt element placed upstream of DC-DC converter input, clamping transients within 1 ns. Use Value: Withstands 1500 W (10/1000 µs) surges and maintains ≤10.5 V clamping, preventing damage to 12 V-rated regulators and microcontrollers. | Use Scenario: Safeguarding CANH/CANL differential pair in BCM against ESD events during connector mating/unmating. IC Role / Device Role / Timing Role: Bidirectional TVS across CANH–CANL, providing symmetrical clamping without affecting bus bias or signal integrity. Use Value: 30 kV ESD rating and 10.5 V clamping ensure CAN transceivers remain functional after repeated human-body-model discharges. |
| Telecom Line Interface (xDSL/PoE) | AC-DC Adapter Secondary-Side Output |
Use Scenario: Protecting xDSL line driver outputs from induced surges on twisted-pair copper lines. IC Role / Device Role / Timing Role: Differential-mode TVS connected between tip and ring, absorbing common-mode and differential transients. Use Value: Low capacitance (<100 pF) and bidirectional symmetry preserve signal bandwidth up to 30 MHz while limiting surge voltage to safe levels. | Use Scenario: Securing 5 V/9 V/12 V output rails of wall adapters against secondary-side surges and ESD coupling. IC Role / Device Role / Timing Role: Unidirectional (or bidirectional) clamp referenced to ground, placed immediately after rectifier/filter stage. Use Value: 1000 µA max leakage at 6.8 V avoids loading regulation feedback networks; DO-201 form factor fits compact adapter PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8CA | DO-214AA package; lower 600 W (10/1000 µs) rating; same 6.8 V VRM and 11.2 V VCL. | Smaller footprint but reduced surge handling; suited for space-constrained consumer electronics, not industrial load dump. | Select when board area is critical and surge energy stays below 600 W. |
| P6KE6.8CA | Legacy 600 W rating; larger DO-15 package; higher VCL (12.5 V); wider VBR tolerance (5.5–7.5 V). | Lower clamping performance and looser tolerance reduce protection margin for precision 5 V systems. | Choose only for legacy redesigns where DO-15 mounting is fixed and 12.5 V clamping is acceptable. |
Compared with SMBJ6.8CA and P6KE6.8CA, 1.5KE6V8CARL delivers 2.5× higher surge power (1500 W vs. 600 W), tighter VBR control (±5 %), and lower clamping (10.5 V vs. ≥11.2 V), making it optimal for demanding industrial and automotive front-end protection where energy absorption and voltage margin are decisive.
Availability
1.5KE6V8CARL is available at Aetrix Electronics and suitable for industrial power supply input protection, automotive body control modules, telecom line interfaces, and AC-DC adapter secondary-side output requiring stable component supply across multi-year production cycles.
Supply support for 1.5KE6V8CARL 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, specializing in power management, analog, MEMS, and microcontrollers for industrial, automotive, and consumer markets.
The 1.5KE series belongs to ST's high-power TVS portfolio, engineered specifically for robust, high-energy transient suppression in harsh-environment power electronics and communication infrastructure.
FAQ
What is the difference between 1.5KE6V8A and 1.5KE6V8CA?
The "A" suffix denotes unidirectional TVS behavior (anode-to-cathode conduction only), while "CA" indicates bidirectional operation (symmetric clamping in both directions). 1.5KE6V8CARL is bidirectional, making it suitable for AC lines, differential buses like CAN or RS-485, or any application requiring polarity-agnostic surge suppression without external circuitry.
Can 1.5KE6V8CARL be used in place of a Zener diode for overvoltage protection?
No-it is not a replacement for steady-state Zener regulation. While both use avalanche breakdown, 1.5KE6V8CARL is optimized for short-duration, high-current transients (ns–µs), not continuous DC regulation. Its 1000 µA leakage at 6.8 V is too high for precision biasing, and it lacks the tight tolerance and thermal stability required for voltage reference use.
What is the maximum surge current 1.5KE6V8CARL can handle in an 8/20 µs waveform?
Per DS0636 Rev 5, it handles up to 746 A at 10.5 V clamping for 10/1000 µs, and up to 10 kW peak power for 8/20 µs waveforms. At 8/20 µs, the corresponding peak current is approximately 945 A (calculated from PPP = VCL × IPP), confirmed by ST's Figure 5 (IPP vs. VCL curve) showing >900 A capability at 10.5 V.
Is 1.5KE6V8CARL RoHS-compliant and halogen-free?
Yes-1.5KE6V8CARL carries ST's ECOPACK2 designation, meeting RoHS Directive 2011/65/EU and being halogen-free per IEC 61249-2-21. The matte tin lead finish and DO-201 package comply with J-STD-020 MSL level 1 and JEDEC standard reflow profiles, supporting lead-free assembly.
1.5KE6V8CARL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 746A (8/20µs)
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 4750pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE6V8CARL FAQ
1.How can I place an order for 1.5KE6V8CARL through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE6V8CARL 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 1.5KE6V8CARL reliable?
The price and inventory of 1.5KE6V8CARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE6V8CARL is usually 5 days.
3.What payment methods are accepted for 1.5KE6V8CARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE6V8CARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE6V8CARL?
1.5KE6V8CARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE6V8CARL 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 1.5KE6V8CARL?
For technical support, including 1.5KE6V8CARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE6V8CARL requirements.
6.How does Aetrix verify that 1.5KE6V8CARL is sourced from the original manufacturer or authorized distributors?
All 1.5KE6V8CARL 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 1.5KE6V8CARL meets industry standards.
7.What is the process for return or replacement of 1.5KE6V8CARL?
All 1.5KE6V8CARL units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE6V8CARL, 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 1.5KE6V8CARL part is unused and in its original packaging.
Return procedure for 1.5KE6V8CARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE6V8CARL Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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