STPS1045B
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STMicroelectronics STPS1045B

Manufacturer No:
STPS1045B
Manufacturer:
STMicroelectronics
Package:
Tube
Description:
DIODE SCHOTTKY 45V 10A DPAK
Delivery:
Payment:
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iso45001
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Product Introduction

Overview

The STPS1045B is a high-voltage Schottky rectifier produced by STMicroelectronics. This device is designed for applications requiring low forward voltage drop and small footprints on PC boards. It is particularly suited for switch-mode power supplies, other power converters, and high-frequency circuitries where low switching losses are essential. The STPS1045B is packaged in the popular DPAK (TO-252AA) outline, making it ideal for space-constrained designs.

Key Specifications

Parameter Value Units Conditions
IF(AV) - Average Forward Current 10 A 50% duty cycle, TC = 151°C, rectangular waveform
VRRM - Repetitive Peak Reverse Voltage 45 V
IFSM - Surge Non-Repetitive Forward Current 390 A tp = 5 µs sine or 3 µs rectangular pulse
VF - Forward Voltage Drop 0.57 V IF = 10 A, TJ = 125°C
TJ - Maximum Junction Temperature 175 °C
IRM - Maximum Reverse Leakage Current 0.2 mA TJ = 25°C, VR = VRRM
CT - Typical Junction Capacitance 760 pF VR = 5 V DC, 25°C
Rth(j-c) - Thermal Resistance Junction to Case 3 °C/W
Rth(j-a) - Thermal Resistance Junction to Ambient 50 °C/W

Key Features

  • Very small conduction losses and negligible switching losses.
  • Extremely fast switching and low thermal resistance.
  • Low forward voltage drop, typically 0.57 V at 10 A and TJ = 125°C.
  • Low capacitance, with a typical junction capacitance of 760 pF at VR = 5 V DC.
  • High reverse avalanche surge capability and avalanche specification.
  • AEC-Q101 qualified for automotive applications.
  • ECOPACK®2 compliant, meeting environmental requirements.
  • Guard ring for enhanced ruggedness and long-term reliability.

Applications

  • Switch-mode power supplies and other power converters.
  • Disk drives and battery charging systems.
  • Free-wheeling diodes and reverse battery protection.
  • High-frequency circuitries where low switching losses are required.

Q & A

  1. What is the maximum average forward current of the STPS1045B?

    The maximum average forward current (IF(AV)) is 10 A.

  2. What is the repetitive peak reverse voltage (VRRM) of the STPS1045B?

    The VRRM is 45 V.

  3. What is the typical forward voltage drop at 10 A and TJ = 125°C?

    The typical forward voltage drop (VF) is 0.57 V.

  4. What is the maximum junction temperature (TJ) of the STPS1045B?

    The maximum junction temperature is 175°C.

  5. What is the thermal resistance from junction to case (Rth(j-c))?

    The thermal resistance from junction to case is 3°C/W.

  6. What are the typical applications of the STPS1045B?

    Typical applications include switch-mode power supplies, disk drives, battery charging, and free-wheeling diodes).

  7. Is the STPS1045B AEC-Q101 qualified?
  8. What package type is the STPS1045B available in?

    The STPS1045B is available in the DPAK (TO-252AA) package).

  9. What is the maximum reverse leakage current at TJ = 25°C and VR = VRRM?

    The maximum reverse leakage current (IRM) is 0.2 mA).

  10. Is the STPS1045B ECOPACK® compliant?

Product Attributes

Diode Type:Schottky
Voltage - DC Reverse (Vr) (Max):45 V
Current - Average Rectified (Io):10A
Voltage - Forward (Vf) (Max) @ If:630 mV @ 10 A
Speed:Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr):- 
Current - Reverse Leakage @ Vr:100 µA @ 45 V
Capacitance @ Vr, F:- 
Mounting Type:Surface Mount
Package / Case:TO-252-3, DPak (2 Leads + Tab), SC-63
Supplier Device Package:DPAK
Operating Temperature - Junction:175°C (Max)
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Similar Products

Part Number STPS1045B STPS1045D
Manufacturer STMicroelectronics STMicroelectronics
Product Status Active Active
Diode Type Schottky Schottky
Voltage - DC Reverse (Vr) (Max) 45 V 45 V
Current - Average Rectified (Io) 10A 10A
Voltage - Forward (Vf) (Max) @ If 630 mV @ 10 A 600 mV @ 10 A
Speed Fast Recovery =< 500ns, > 200mA (Io) Fast Recovery =< 500ns, > 200mA (Io)
Reverse Recovery Time (trr) - -
Current - Reverse Leakage @ Vr 100 µA @ 45 V 100 µA @ 45 V
Capacitance @ Vr, F - -
Mounting Type Surface Mount Through Hole
Package / Case TO-252-3, DPak (2 Leads + Tab), SC-63 TO-220-2
Supplier Device Package DPAK TO-220AC
Operating Temperature - Junction 175°C (Max) 175°C (Max)

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