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Home > Products > Discrete Semiconductor Products > Diodes > Rectifiers > Single Diodes

STMicroelectronics STPS3L60Q

Name: STPS3L60Q
Brand: STMicroelectronics
SKU: STPS3L60Q
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STPS3L60Q

Manufacturer:: STMicroelectronics

Category:: Single Diodes

Package:: DO-204AC, DO-15, Axial

Datasheet:: STPS3L60Q.pdf

Description:: DIODE SCHOTTKY 60V 3A DO15

Quantity:: RFQ Add To RFQ list

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Inventory:5,237

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Product details

Overview

STPS3L60Q from STMicroelectronics is a 60 V, 3 A low-drop Schottky rectifier in DO-15 axial package, designed for high-frequency DC/DC converters and space-constrained telecom battery chargers. It delivers VF(typ.) = 0.53 V at 100 °C and 3 A, features avalanche rating (PARM = 144 W), and operates up to Tj(max.) = 150 °C.

For engineers reviewing the STPS3L60Q datasheet, STPS3L60Q pinout, STPS3L60Q application, or STPS3L60Q equivalent, key selection criteria include forward voltage drop at elevated temperature, thermal resistance (Rth(j-a) = 100 °C/W for DO-15), surge current capability (IFSM = 100 A), and ECOPACK2 environmental compliance.

Technical Context

This Schottky rectifier uses a planar silicon structure optimized for low conduction loss and negligible switching losses-critical for high-efficiency SMPS operating above 100 kHz. Its low VF and fast recovery eliminate reverse recovery charge, enabling use without snubbers in flyback and buck topologies.

The device is rated for repetitive peak reverse voltage (VRRM) of 60 V and average forward current (IF(AV)) of 3 A at TL = 72 °C for DO-15 mounting. Thermal management relies on lead-to-ambient conduction, with Rth(j-a) = 100 °C/W under standard FR4 PCB conditions per Figure 4.

Key Specifications

Parameter	Value and Actual Design Meaning
VRRM	60 V - Maximum reverse blocking voltage before breakdown; sets usable input range in 48 V telecom systems.
IF(AV)	3 A at TL = 72 °C - Continuous DC output current capability with standard DO-15 lead mounting on FR4 board.
VF(typ.)	0.53 V at IF = 3 A, Tj = 100 °C - Directly determines conduction loss: ~1.6 W at 3 A, enabling >92% efficiency in 12 V output converters.
IFSM	100 A (tp = 10 ms sinusoidal) - Withstands inrush and short-circuit surges without failure in battery charger inputs.
Rth(j-a)	100 °C/W - Junction-to-ambient thermal resistance for DO-15; defines maximum power dissipation (Pmax ≈ 0.75 W at Tamb = 75 °C).
Tj(max.)	150 °C - Maximum junction temperature; enables operation in sealed enclosures with limited airflow.
IR(max)	30 mA at VR = 60 V, Tj = 125 °C - Reverse leakage limits standby power loss in always-on LED lighting drivers.

Pinout & Package

STPS3L60Q is packaged in DO-15 axial leaded case with cathode band marking. The two terminals are anode (unmarked end) and cathode (banded end); no internal circuitry or control logic exists.

Pin/Terminal	Circuit Role	Design Meaning
Anode	Input current entry point	Connected to positive rail or switch node; must withstand full system voltage during reverse bias.
Cathode	Output current exit point	Marked with band; connects to load or filter capacitor; carries full output current with minimal voltage drop.

Key Features

Feature	Design Value
Negligible switching losses	No reverse recovery time (trr ≈ 0 ns) eliminates switching loss and EMI in high-frequency converters (>500 kHz).
Low forward voltage drop	VF = 0.53 V typ. at 3 A/100 °C reduces conduction loss by ~35% vs. comparable Si PN diodes.
Avalanche rated	Rated for 144 W repetitive avalanche power (tp = 10 µs), enabling robustness against inductive kickback in flyback transformers.
ECOPACK2 compliance	Lead-free, halogen-free, RoHS-compliant packaging meets strict environmental requirements for industrial and telecom equipment.
Space-constrained suitability	DO-15 axial package (A = 6.05–6.75 mm, C = 26–31 mm) fits narrow PCB layouts in compact battery chargers and LED drivers.

Applications

Telecom Battery Charger

LED Lighting Driver

Use Scenario: 48 V input, 12 V/2 A isolated flyback charger for VoIP phones and small base stations.

IC Role / Device Role / Timing Role: Output rectifier replacing fast recovery diode to reduce heat and improve efficiency.

Use Value: 0.53 V VF cuts conduction loss by 1.2 W vs. Si diode, eliminating need for heatsink in sealed enclosure.

Use Scenario: Constant-current LED driver for outdoor signage with 24 V input and 350 mA string current.

IC Role / Device Role / Timing Role: Secondary-side synchronous rectification element in quasi-resonant topology.

Use Value: Avalanche rating ensures reliability during LED open-circuit transients; low IR minimizes standby power drain.

DC/DC Converter

SMPS Secondary Rectification

Use Scenario: 5 V/3 A buck converter for FPGA I/O supply in industrial PLC modules.

IC Role / Device Role / Timing Role: Low-loss freewheeling diode in non-synchronous design.

Use Value: Rth(j-a) = 100 °C/W allows direct PCB mounting without thermal vias, reducing BOM count and layout area.

Use Scenario: 19 V/3.16 A laptop adapter secondary rectifier operating at 100 kHz switching frequency.

IC Role / Device Role / Timing Role: Main output rectifier handling continuous 3 A DC current.

Use Value: 150 °C Tj(max.) supports operation at 85 °C ambient with 25 °C rise, meeting EN60950 derating requirements.

Equivalent & Alternatives

The following parts are listed as comparable options for similar Schottky rectifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ON Semiconductor SB360-E3/54	VRRM = 60 V, IF(AV) = 3 A, VF = 0.72 V (typ. @ 3 A, 25 °C), DO-15, no avalanche rating	Lacks avalanche ruggedness; unsuitable for flyback transformer clamp or inductive load switching	Prefer STPS3L60Q where surge immunity or high-temperature VF stability is required.
Vishay SS36-E3/57T	VRRM = 60 V, IF(AV) = 3 A, VF = 0.75 V (typ. @ 3 A, 25 °C), SMB surface-mount, Rth(j-a) ≈ 80 °C/W	SMB package requires reflow assembly and PCB real estate; higher VF increases loss at 100 °C	Choose STPS3L60Q for through-hole assembly, axial form factor, or superior thermal performance in constrained ambient.

Compared with SB360-E3/54 and SS36-E3/57T, STPS3L60Q offers lower VF at high temperature, certified avalanche capability, and DO-15 mechanical compatibility-making it optimal for thermally demanding, reliability-critical telecom and industrial power supplies.

Availability

STPS3L60Q is available at Aetrix Electronics and suitable for telecom battery chargers, LED lighting drivers, DC/DC converters, and SMPS secondary rectification requiring stable component supply across long production lifecycles.

Supply support for STPS3L60Q 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, power, microcontroller, and sensor solutions for automotive, industrial, and consumer markets.

STPS3L60Q belongs to ST's Power Schottky Rectifier product line, engineered specifically for high-efficiency, high-reliability AC/DC and DC/DC conversion in space- and thermal-constrained applications.

FAQ

What is the maximum allowable ambient temperature for STPS3L60Q at 3 A DC load?

Per Figure 4 in DS2134 Rev 7, STPS3L60Q (DO-15) supports IF(AV) = 3 A up to Tamb ≈ 75 °C with Rth(j-a) = 100 °C/W. At Tamb = 85 °C, derated current is ~2.5 A. Exceeding this risks junction temperature exceeding 150 °C under worst-case thermal conditions.

Does STPS3L60Q require a heatsink in typical DO-15 mounting?

No heatsink is required for STPS3L60Q in standard DO-15 mounting on FR4 PCB with 1 oz copper. At 3 A and Tamb = 75 °C, calculated Tj = 75 °C + (100 °C/W × 1.6 W) = 235 °C - which exceeds rating. Therefore, actual usable power is limited to ~0.75 W (≈2.5 A), staying within safe Tj limits without added thermal mass.

Is STPS3L60Q compatible with lead-free reflow soldering?

STPS3L60Q is not a surface-mount device and is not intended for reflow soldering. It is an axial-leaded DO-15 part designed for wave soldering or hand soldering. Its ECOPACK2 compliance confirms lead-free terminations, but thermal profile must follow axial lead soldering guidelines-not JEDEC J-STD-020.

How does the avalanche rating of STPS3L60Q improve system reliability?

The 144 W repetitive avalanche rating (tp = 10 µs, Tj = 125 °C) allows STPS3L60Q to safely absorb energy from inductive spikes-such as transformer leakage in flyback converters-without degradation. This eliminates need for external clamping circuits and prevents catastrophic failure during transient overvoltage events.

STPS3L60Q Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Package/Case:: DO-204AC, DO-15, Axial

Packaging:: Cut Tape (CT)

Product Status:: Active

Technology:: Schottky

Voltage - DC Reverse (Vr) (Max):: 60 V

Current - Average Rectified (Io):: 3A

Voltage - Forward (Vf) (Max) @ If:: 620 mV @ 3 A

Speed:: Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):: -

Current - Reverse Leakage @ Vr:: 60 µA @ 60 V

Capacitance @ Vr, F:: -

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: DO-204AC (DO-15)

Operating Temperature - Junction:: 150°C (Max)

STPS3L60Q FAQ

1.How can I place an order for STPS3L60Q through Aetrix?

Please submit a Request for Quotation (RFQ) for STPS3L60Q 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 STPS3L60Q reliable?

The price and inventory of STPS3L60Q are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS3L60Q is usually 5 days.

3.What payment methods are accepted for STPS3L60Q?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS3L60Q transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STPS3L60Q?

STPS3L60Q orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STPS3L60Q 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 STPS3L60Q?

For technical support, including STPS3L60Q datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS3L60Q requirements.

6.How does Aetrix verify that STPS3L60Q is sourced from the original manufacturer or authorized distributors?

All STPS3L60Q 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 STPS3L60Q meets industry standards.

7.What is the process for return or replacement of STPS3L60Q?

All STPS3L60Q units undergo pre-shipment inspection (PSI). If there is an issue with STPS3L60Q, 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 STPS3L60Q part is unused and in its original packaging.

Return procedure for STPS3L60Q:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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