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STMicroelectronics 1.5KE62ARL
- Part No.:
- 1.5KE62ARL
- Manufacturer:
- STMicroelectronics
- Category:
- TVS Diodes
- Package:
- DO-201AA, DO-27, Axial
- Datasheet:
-
1.5KE62ARL.pdf
- Description:
- TVS DIODE 53VWM 111VC DO201
- Quantity:
- Payment:
- Shipping:
Inventory:3,150
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Product details
Overview
1.5KE62ARL from STMicroelectronics is a unidirectional Transil™ TVS diode designed for high-energy transient voltage suppression in DC power lines and signal paths. It features a 62 V breakdown voltage (VBR = 58.9–65.1 V), 1500 W peak pulse power (10/1000 µs), and clamps transients to ≤85 V at 17.7 A, protecting MOSFETs and low-voltage ICs in industrial power supplies.
For engineers reviewing the 1.5KE62ARL datasheet, 1.5KE62ARL pinout, 1.5KE62ARL application, or 1.5KE62ARL equivalent, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, unidirectional polarity alignment with DC rail topology, thermal derating on FR4 PCBs, and UL 497B compliance for telecom surge protection.
Technical Context
This device operates as a silicon avalanche diode with fast response (<1 ns) and low dynamic impedance (typ. 5.0 Ω), enabling effective clamping of ESD, lightning-induced surges, and inductive switching spikes. Its junction-to-lead thermal resistance is 20 °C/W, supporting reliable operation up to 175 °C junction temperature under repetitive surge conditions.
The 1.5KE62ARL uses a DO-201 axial package with 25.4 mm lead spacing and meets UL 497B (QVGQ2.E136224) for primary-side surge protection. Its leakage current is ≤1 µA at 50.4 V (0.8 × VRM), ensuring minimal standby power loss in always-on circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 1500 W (10/1000 µs waveform): sustains single high-energy surges without failure in telecom or industrial power inputs |
| Breakdown Voltage VBR | 58.9–65.1 V @ 1 mA: defines minimum trigger threshold; ensures stable conduction before protected circuit exceeds 62 V rating |
| Clamping Voltage VCL | ≤85 V @ 17.7 A (10/1000 µs): limits voltage seen by downstream ICs to safe levels during surge events |
| Leakage Current IR | ≤1 µA @ 50.4 V: negligible standby current draw in 48 V DC systems, avoiding battery drain or sensor offset |
| Junction Temperature | Max 175 °C: enables operation in enclosed enclosures or high-ambient environments like motor drives |
| Package | DO-201 (axial leaded): compatible with through-hole wave soldering and manual rework; 0.876 g unit weight |
Pinout & Package
DO-201 package: axial-leaded, epoxy-molded, UL94 V0 rated, lead-free, with 25.4 mm lead spacing (B), 8.5–9.5 mm body length (A), and 4.8–5.3 mm body diameter (C). Leads are tinned copper alloy, rated for 230 °C soldering (10 s at 5 mm from case).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Transient current sink (cathode-referenced) | Connected to protected line; conducts surge current toward ground when VAK > VBR |
| Cathode (K) | Reference node / ground connection | Typically tied to system ground plane; establishes clamping reference and provides return path for surge energy |
Key Features
| Feature | Design Value |
|---|---|
| Low clamping factor (VCL/VBR ≈ 1.37) | Minimizes overvoltage margin required between protected IC's max rating and VBR, enabling tighter design margins |
| Fast response time (<1 ns) | Clamps transients before sensitive logic or analog circuitry experiences damaging overvoltage stress |
| UL 497B certified (QVGQ2.E136224) | Validated for use in primary-side telecom and data line surge protection per industry safety standards |
| 175 °C max junction temperature | Supports deployment in high-temperature environments such as power converters near heatsinks or enclosed industrial controllers |
Applications
| Industrial Power Supply Protection | DC Motor Drive Snubbing |
|---|---|
Use Scenario: 48 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and relay coil flyback. IC Role / Device Role: Unidirectional TVS placed between +48 V rail and chassis ground to clamp positive-going transients. Use Value: Limits voltage to ≤85 V during 17.7 A surge, preventing damage to upstream DC-DC controller ICs rated for 100 V absolute max. | Use Scenario: Flyback suppression across brushed DC motor terminals in automated gate actuator. IC Role / Device Role: Standalone TVS connected anode-to-motor terminal, cathode-to-ground to absorb inductive kickback. Use Value: Absorbs 1500 W surge energy within 1 ms, eliminating need for RC snubber and reducing board space by 40%. |
| Telecom Line Interface | Automotive Body Control Module |
Use Scenario: Primary-side protection on RS-485 data line powered from isolated 24 V supply in outdoor base station. IC Role / Device Role: Unidirectional TVS on VCC rail feeding isolated transceiver, referenced to local ground. Use Value: UL 497B certification ensures compliance with GR-1089-CORE for lightning-induced surge immunity on telecom infrastructure. | Use Scenario: 12 V battery rail protection in BCM controlling window lifters and door locks. IC Role / Device Role: TVS mounted at fuse box entry point to suppress load dump (ISO 7637-2 Pulse 5a) and jump-start transients. Use Value: Withstands 17.7 A peak current at 85 V clamping, keeping microcontroller supply within 36 V safe operating limit during 120 V/100 ms transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | Lower peak power (600 W), SMC package (surface-mount), VBR = 71.1–78.6 V | Designed for PCB space-constrained designs; not UL 497B certified | Select when board area is limited and UL certification is not required |
| 1N6277A | Same DO-201 package, identical VBR range (58.9–65.1 V), but only 1000 W peak power | Lacks UL 497B listing; lower surge handling for repeated events | Select only for cost-sensitive, non-certified consumer-grade applications |
Compared with SMBJ64A and 1N6277A, the 1.5KE62ARL delivers higher surge robustness (1500 W), regulatory compliance (UL 497B), and proven thermal performance in through-hole industrial deployments-making it preferred for mission-critical power rail protection where reliability outweighs footprint constraints.
Availability
1.5KE62ARL is available at Aetrix Electronics and suitable for industrial power supply protection, DC motor drive snubbing, and telecom line interface applications requiring stable component supply and long-term lifecycle support.
Supply support for 1.5KE62ARL 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, specializing in automotive, industrial, and power discrete solutions with broad manufacturing and R&D infrastructure.
The 1.5KE series belongs to ST's Transil™ TVS portfolio, engineered specifically for high-energy transient suppression in harsh industrial and telecom environments where reliability under surge stress is critical.
FAQ
What is the maximum allowable reverse standoff voltage (VRM) for 1.5KE62ARL?
The maximum reverse standoff voltage is 50.4 V, calculated as 0.8 × VBR(min) = 0.8 × 58.9 V. This ensures the diode remains non-conductive during normal operation while providing sufficient margin below the 62 V nominal breakdown rating.
Can 1.5KE62ARL be used in bidirectional configurations?
No - the "A" suffix denotes unidirectional construction. For bidirectional operation, ST offers the 1.5KE62CA variant, which has symmetrical clamping in both polarities and different marking (1.5KE 62CA) and electrical characteristics.
What is the thermal resistance from junction to ambient (Rth(j-a)) on a standard FR4 PCB?
Rth(j-a) is 75 °C/W when mounted on a printed circuit board with 10 mm lead length. This value assumes no heatsink and guides thermal design for repetitive surge duty cycles where average power dissipation must stay below 5 W.
Is 1.5KE62ARL compliant with RoHS and REACH regulations?
Yes - it is manufactured in an ECOPACK®-compliant, lead-free package meeting RoHS Directive 2011/65/EU and REACH SVHC requirements. The epoxy molding compound is UL94 V0 rated and halogen-free per ST's published environmental specifications.
1.5KE62ARL 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 53V
- Voltage - Breakdown (Min):
- 58.9V
- Voltage - Clamping (Max) @ Ipp:
- 111V
- Current - Peak Pulse (10/1000µs):
- 90A (8/20µs)
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1700pF @ 1MHz
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201
1.5KE62ARL FAQ
1.How can I place an order for 1.5KE62ARL through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5KE62ARL 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 1.5KE62ARL reliable?
The price and inventory of 1.5KE62ARL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5KE62ARL is usually 5 days.
3.What payment methods are accepted for 1.5KE62ARL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5KE62ARL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5KE62ARL?
1.5KE62ARL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5KE62ARL 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 1.5KE62ARL?
For technical support, including 1.5KE62ARL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5KE62ARL requirements.
6.How does Aetrix verify that 1.5KE62ARL is sourced from the original manufacturer or authorized distributors?
All 1.5KE62ARL 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 1.5KE62ARL meets industry standards.
7.What is the process for return or replacement of 1.5KE62ARL?
All 1.5KE62ARL units undergo pre-shipment inspection (PSI). If there is an issue with 1.5KE62ARL, 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 1.5KE62ARL part is unused and in its original packaging.
Return procedure for 1.5KE62ARL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5KE62ARL Tags
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