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STMicroelectronics 1.5KE36CARL
- Part No.:
- 1.5KE36CARL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE36CARL.pdf
- Description:
- TVS DIODE 30.8VWM 64.3VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:9,073
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Product details
Overview
1.5KE36CARL from STMicroelectronics is a bidirectional Transil™ TVS diode designed for transient overvoltage protection in DC power rails and signal lines. It features a 36 V standoff voltage (VRM), 34.2 V minimum breakdown voltage (VBR), 49.9 V maximum clamping voltage (VCL) at 30 A peak pulse current (IPP), and 1500 W peak pulse power (10/1000 µs). It protects MOSFETs, microcontrollers, and low-voltage ICs in industrial power supplies and telecom interfaces.
For engineers reviewing the 1.5KE36CARL datasheet, 1.5KE36CARL pinout, 1.5KE36CARL application, or 1.5KE36CARL equivalent, key selection criteria include clamping ratio (VCL/VBR = 1.46), junction-to-lead thermal resistance (20 °C/W), bidirectional polarity, DO-201 package compatibility, and UL 497B certification for surge protection systems.
Technical Context
This device operates as a voltage-clamping transient suppressor with avalanche breakdown behavior. Its bidirectional structure enables symmetrical protection on AC-coupled or floating lines without polarity constraints. The 10/1000 µs waveform rating reflects IEC 61000-4-5 compliance readiness.
Thermal design relies on its 20 °C/W junction-to-leads resistance and 175 °C maximum junction temperature. With 1 µA max leakage at VRM and 9.9 mV/°C voltage temperature coefficient, it maintains stable clamping across industrial temperature ranges (-65 to +175 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W (10/1000 µs): Sustains high-energy surges per IEC 61000-4-5 Level 4 without failure |
| Standoff Voltage (VRM) | 36 V: Maximum continuous reverse voltage before leakage exceeds 1 µA - sets operating rail margin |
| Breakdown Voltage (VBR) | 34.2–37.8 V @ 1 mA: Avalanche onset range defining reliable turn-on threshold under transient stress |
| Clamping Voltage (VCL) | 49.9 V @ 30 A (10/1000 µs): Peak voltage seen by protected circuit during worst-case surge |
| Junction Temp Limit | 175 °C: Enables operation in high-ambient environments like enclosed power converters |
| Package Thermal Rth(j-l) | 20 °C/W: Supports PCB-level heat dissipation without heatsink for short-duration transients |
| UL Recognition | UL 497B QVGQ2.E136224: Validated for use in telecom and industrial surge protection modules |
Pinout & Package
1.5KE36CARL uses the DO-201 axial leaded package (8.5–9.5 mm length × 4.8–5.3 mm diameter), optimized for through-hole mounting and manual rework. Leads are tin-plated copper, RoHS-compliant, and rated for 230 °C soldering (10 s at 5 mm from case).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Lead 1) | Transient current entry (bidirectional) | Functions as cathode during positive transients; no fixed polarity - symmetric conduction |
| Cathode (Lead 2) | Transient current exit (bidirectional) | Functions as anode during negative transients; enables AC-line or floating-rail protection |
Key Features
| Feature | Design Value |
|---|---|
| Low Clamping Ratio | VCL/VBR = 1.46 ensures minimal overvoltage stress on downstream 3.3 V/5 V logic during ESD/EFT events |
| Fast Response Time | < 1 ns avalanche turn-on enables protection of high-speed interfaces (RS-485, CAN, Ethernet PHYs) |
| Bidirectional Symmetry | Identical VBR and VCL for ± polarity eliminates need for dual-diode arrangements in AC-coupled circuits |
| High Surge Robustness | Withstands 200 A non-repetitive forward surge (tp = 10 ms), supporting lightning-induced current handling |
| Stable Leakage | ≤1 µA @ 36 V VRM minimizes standby power loss in battery-backed or energy-sensitive systems |
Applications
| Industrial Power Supply Input | Telecom Line Interface |
|---|---|
|
Use Scenario: 48 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive switching. IC Role / Device Role: Primary transient voltage suppressor placed upstream of DC-DC converter input filter. Use Value: Limits surge voltage to ≤49.9 V, preventing damage to 60 V-rated input MOSFETs and enabling single-stage protection architecture. |
Use Scenario: Protection of RS-485 transceiver bus lines in outdoor base station equipment subject to induced lightning surges. IC Role / Device Role: Bidirectional clamping element across differential pair (A/B) and ground reference. Use Value: Maintains signal integrity by clamping common-mode transients while preserving <10 pF capacitance at 1 MHz (typical), avoiding data rate degradation. |
| Automotive Body Control Module | Smart Meter AC Mains Interface |
|
Use Scenario: 12 V battery rail protection in BCM against ISO 7637-2 pulse 1 (inductive load dump) and pulse 2a (alternator load dump). IC Role / Device Role: Secondary overvoltage clamp after primary LC filter, absorbing residual energy not filtered out. Use Value: Survives repeated 10/1000 µs surges up to 1500 W without parameter drift, validated per AEC-Q101 stress conditions. |
Use Scenario: Surge suppression on 230 VAC input rectifier output in Class I electricity meter with isolated MCU supply. IC Role / Device Role: DC-link clamp protecting bulk capacitor and offline controller IC from line-switching transients. Use Value: UL 497B recognition supports compliance with IEC 62052-11 and EN 61000-4-5 for revenue-grade metering applications. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA | Same 36 V VRM, but 600 W rating (SMB package); lower VCL (58.1 V @ 10.3 A) | Lower power handling limits use to sub-1 kV surge environments; smaller footprint saves board space | Select when board area is constrained and surge energy is ≤600 W (e.g., USB-C PD port protection) |
| P6SMB36CA | Same 36 V VRM, 600 W rating, SMB package; slightly higher VCL (59.0 V @ 10.1 A) | Lacks UL 497B listing; suitable only for non-certified internal subsystems | Choose for cost-sensitive consumer electronics where regulatory certification is not required |
Compared with 1.5KE36CARL, SMBJ36CA offers space savings but sacrifices 60% peak power capacity, while P6SMB36CA omits UL recognition - making the 1.5KE36CARL the only option meeting both high-energy surge and regulatory requirements in industrial metering and telecom infrastructure.
Availability
1.5KE36CARL is available at Aetrix Electronics and suitable for industrial power supplies, telecom line interfaces, automotive body control modules, and smart meter AC mains protection requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE36CARL 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 analog, digital, and mixed-signal ICs for industrial, automotive, and consumer markets.
The 1.5KE Transil™ series was developed specifically for high-reliability transient suppression in harsh electrical environments, targeting applications demanding robustness beyond standard JEDEC test conditions.
FAQ
What is the maximum clamping voltage of 1.5KE36CARL under a 10/1000 µs surge?
The maximum clamping voltage is 49.9 V at 30 A peak pulse current (IPP), measured per IEC 61000-4-5 standard waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events.
Is 1.5KE36CARL suitable for AC line protection?
Yes - its bidirectional construction allows direct placement across AC inputs or transformer secondaries without polarity concerns. It is commonly used on rectified DC links in SMPS front-ends and meets UL 497B requirements for telecom and industrial AC surge protection modules.
How does the DO-201 package affect thermal performance?
The DO-201 package provides 20 °C/W junction-to-leads thermal resistance, enabling effective heat transfer to PCB copper pours or chassis mounts. Unlike surface-mount alternatives, its axial leads allow manual rework and higher mechanical reliability in vibration-prone environments.
Does 1.5KE36CARL require derating at elevated ambient temperatures?
Yes - peak pulse power must be reduced above 25 °C ambient per Figure 3 in the datasheet. At 75 °C ambient, the device is rated for 5 W continuous dissipation on an infinite heatsink, and pulsed capability drops to ~900 W at Tj = 125 °C due to thermal saturation effects.
1.5KE36CARL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Package/Case:
- DO-201AA, DO-27, Axial
- Series:
- 1.5KE, TRANSIL™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 64.3V
- Current - Peak Pulse (10/1000µs):
- 156A (8/20µs)
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1250pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE36CARL FAQ
1.How can I place an order for 1.5KE36CARL through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE36CARL 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 1.5KE36CARL reliable?
The price and inventory of 1.5KE36CARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE36CARL is usually 5 days.
3.What payment methods are accepted for 1.5KE36CARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE36CARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE36CARL?
1.5KE36CARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE36CARL 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 1.5KE36CARL?
For technical support, including 1.5KE36CARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE36CARL requirements.
6.How does Aetrix verify that 1.5KE36CARL is sourced from the original manufacturer or authorized distributors?
All 1.5KE36CARL 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 1.5KE36CARL meets industry standards.
7.What is the process for return or replacement of 1.5KE36CARL?
All 1.5KE36CARL units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE36CARL, 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 1.5KE36CARL part is unused and in its original packaging.
Return procedure for 1.5KE36CARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE36CARL Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
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