YES Diodes & Rectifiers 2,400+

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Part RoHS Manufacturer Diode Type Terminal Position Terminal Form No. of Terminals Surface Mount Package Shape Minimum Quality Factor Package Body Material Working Test Current Config Frequency Band Nominal Reference Voltage Maximum Output Current Maximum Forward Voltage (VF) Maximum Diode Capacitance Nominal Breakdown Voltage Maximum Reverse Recovery Time Technology Maximum Reverse Current No. of Elements Reverse Test Voltage Nominal Regulation Current (Ireg) Package Style (Meter) Sub-Category Maximum Voltage Tolerance Maximum Repetitive Peak Reverse Voltage Maximum Operating Temperature Application Maximum Dynamic Impedance Maximum Limiting Voltage Minimum Operating Temperature Terminal Finish JESD-30 Code Moisture Sensitivity Level (MSL) Polarity Case Connection Qualification Maximum Power Dissipation Nominal Diode Capacitance Additional Features No. of Phases JEDEC-95 Code Diode Cap Tolerance Maximum Clamping Voltage Minimum Breakdown Voltage Maximum Non Repetitive Peak Forward Current JESD-609 Code Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Diode Element Material Minimum Diode Capacitance Ratio Reference Standard

MBR20100CS2-E1

Diodes Incorporated

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

10 A

.85 V

SCHOTTKY

100 uA

2

SMALL OUTLINE

100 V

150 Cel

HIGH VOLTAGE POWER

MATTE TIN

R-PSSO-G2

3

LOW NOISE

1

TO-263AB

150 A

e3

30

260

SILICON

MBR20100CS2-G1

Diodes Incorporated

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

10 A

.85 V

SCHOTTKY

100 uA

2

SMALL OUTLINE

100 V

150 Cel

HIGH VOLTAGE POWER

MATTE TIN

R-PSSO-G2

3

LOW NOISE

1

TO-263AB

150 A

e3

30

260

SILICON

MBR20100CS2TR-E1

Diodes Incorporated

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

10 A

.85 V

SCHOTTKY

100 uA

2

SMALL OUTLINE

100 V

150 Cel

HIGH VOLTAGE POWER

MATTE TIN

R-PSSO-G2

3

LOW NOISE

1

TO-263AB

150 A

e3

30

260

SILICON

MBR20100CS2TR-G1

Diodes Incorporated

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

10 A

.85 V

SCHOTTKY

100 uA

2

SMALL OUTLINE

100 V

150 Cel

HIGH VOLTAGE POWER

MATTE TIN

R-PSSO-G2

3

LOW NOISE

1

TO-263AB

150 A

e3

30

260

SILICON

PMEG2010AEK,115

NXP Semiconductors

RECTIFIER DIODE

YES

SINGLE

1 A

.22 V

SCHOTTKY

1

Rectifier Diodes

20 V

150 Cel

1

4.5 A

1PS181,135

NXP Semiconductors

RECTIFIER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON ANODE, 2 ELEMENTS

.215 A

1.2 V

.004 us

.5 uA

2

SMALL OUTLINE

85 V

150 Cel

TIN

R-PDSO-G3

Not Qualified

.25 W

4 A

e3

SILICON

1PS184,115

NXP Semiconductors

RECTIFIER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

.215 A

1.2 V

.004 us

.5 uA

2

SMALL OUTLINE

85 V

150 Cel

TIN

R-PDSO-G3

Not Qualified

.25 W

4 A

e3

SILICON

1PS184,135

NXP Semiconductors

RECTIFIER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

.215 A

1.2 V

.004 us

.5 uA

2

SMALL OUTLINE

85 V

150 Cel

TIN

R-PDSO-G3

Not Qualified

.25 W

4 A

e3

SILICON

1PS193,115

NXP Semiconductors

RECTIFIER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

.215 A

1.2 V

.004 us

.5 uA

1

SMALL OUTLINE

85 V

150 Cel

TIN

R-PDSO-G3

Not Qualified

.25 W

1

4 A

e3

SILICON

1PS193,135

NXP Semiconductors

RECTIFIER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

.215 A

1.2 V

.004 us

.5 uA

1

SMALL OUTLINE

85 V

150 Cel

TIN

R-PDSO-G3

Not Qualified

.25 W

1

4 A

e3

SILICON

1PS226,135

NXP Semiconductors

RECTIFIER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

.215 A

1.2 V

.004 us

.5 uA

2

SMALL OUTLINE

85 V

150 Cel

TIN

R-PDSO-G3

Not Qualified

.25 W

4 A

e3

SILICON

1PS59SB10,115

NXP Semiconductors

RECTIFIER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

.2 A

.8 V

.005 us

SCHOTTKY

2 uA

1

SMALL OUTLINE

125 Cel

TIN

R-PDSO-G3

Not Qualified

.25 W

1

.6 A

e3

SILICON

1PS59SB14,115

NXP Semiconductors

RECTIFIER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

.2 A

.8 V

.005 us

SCHOTTKY

2 uA

2

SMALL OUTLINE

Rectifier Diodes

30 V

125 Cel

MATTE TIN

R-PDSO-G3

Not Qualified

.25 W

.6 A

e3

260

SILICON

1PS59SB15,115

NXP Semiconductors

RECTIFIER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

.2 A

.8 V

.005 us

SCHOTTKY

2 uA

2

SMALL OUTLINE

Rectifier Diodes

30 V

125 Cel

MATTE TIN

R-PDSO-G3

Not Qualified

.25 W

.6 A

e3

260

SILICON

1PS59SB16,115

NXP Semiconductors

RECTIFIER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON ANODE, 2 ELEMENTS

.2 A

.8 V

.005 us

SCHOTTKY

2 uA

2

SMALL OUTLINE

Rectifier Diodes

30 V

125 Cel

MATTE TIN

R-PDSO-G3

Not Qualified

.25 W

.6 A

e3

260

SILICON

1PS59SB20,115

NXP Semiconductors

RECTIFIER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

.5 A

SCHOTTKY

1

SMALL OUTLINE

125 Cel

TIN

R-PDSO-G3

Not Qualified

1

TO-236

e3

SILICON

BAS16T,115

NXP Semiconductors

RECTIFIER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

.155 A

.715 V

.004 us

1

SMALL OUTLINE

Rectifier Diodes

85 V

150 Cel

-65 Cel

TIN

R-PDSO-G3

1

Not Qualified

.17 W

1

.5 A

e3

30

260

SILICON

BAS216,115

NXP Semiconductors

RECTIFIER DIODE

DUAL

WRAP AROUND

2

YES

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

SINGLE

.25 A

1.25 V

.004 us

1 uA

1

SMALL OUTLINE

Rectifier Diodes

85 V

150 Cel

R-CDSO-R2

Not Qualified

.4 W

1

4 A

40

260

SILICON

BAS216,135

NXP Semiconductors

RECTIFIER DIODE

DUAL

WRAP AROUND

2

YES

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

SINGLE

.25 A

1.25 V

.004 us

1 uA

1

SMALL OUTLINE

85 V

150 Cel

R-CDSO-R2

Not Qualified

.4 W

1

4 A

NOT SPECIFIED

NOT SPECIFIED

SILICON

BAT254,115

NXP Semiconductors

RECTIFIER DIODE

DUAL

WRAP AROUND

2

YES

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

SINGLE

.2 A

.8 V

.005 us

SCHOTTKY

1

SMALL OUTLINE

Rectifier Diodes

30 V

125 Cel

R-CDSO-R2

Not Qualified

1

.6 A

260

SILICON

BYD17D,115

NXP Semiconductors

RECTIFIER DIODE

END

WRAP AROUND

2

YES

ROUND

GLASS

SINGLE

.6 A

1.05 V

3 us

AVALANCHE

1 uA

1

200 V

LONG FORM

200 V

175 Cel

GENERAL PURPOSE

-65 Cel

O-LELF-R2

ISOLATED

Not Qualified

LOW LEAKAGE CURRENT

1

225 V

20 A

SILICON

IEC-134

BYD17G,115

NXP Semiconductors

RECTIFIER DIODE

END

WRAP AROUND

2

YES

ROUND

GLASS

SINGLE

.6 A

1.05 V

3 us

AVALANCHE

1 uA

1

400 V

LONG FORM

400 V

175 Cel

GENERAL PURPOSE

-65 Cel

O-LELF-R2

ISOLATED

Not Qualified

LOW LEAKAGE CURRENT

1

450 V

20 A

SILICON

IEC-134

BYD17J,115

NXP Semiconductors

RECTIFIER DIODE

END

WRAP AROUND

2

YES

ROUND

GLASS

SINGLE

.6 A

1.05 V

3 us

AVALANCHE

1 uA

1

600 V

LONG FORM

600 V

175 Cel

GENERAL PURPOSE

-65 Cel

O-LELF-R2

ISOLATED

Not Qualified

LOW LEAKAGE CURRENT

1

650 V

20 A

SILICON

IEC-134

BYD17K,135

NXP Semiconductors

RECTIFIER DIODE

END

WRAP AROUND

2

YES

ROUND

GLASS

SINGLE

.6 A

3 us

AVALANCHE

1

LONG FORM

800 V

175 Cel

-65 Cel

O-LELF-R2

ISOLATED

Not Qualified

1

NOT SPECIFIED

NOT SPECIFIED

SILICON

BYD37M,115

NXP Semiconductors

RECTIFIER DIODE

END

WRAP AROUND

2

YES

ROUND

GLASS

SINGLE

.6 A

1.3 V

.3 us

AVALANCHE

1 uA

1

1000 V

LONG FORM

1000 V

175 Cel

FAST SOFT RECOVERY

-65 Cel

O-LELF-R2

ISOLATED

Not Qualified

LOW LEAKAGE CURRENT

1

1100 V

20 A

SILICON

IEC-134

BYD77B,115

NXP Semiconductors

RECTIFIER DIODE

END

WRAP AROUND

2

YES

ROUND

GLASS

SINGLE

.85 A

.025 us

AVALANCHE

1

LONG FORM

100 V

175 Cel

O-LELF-R2

ISOLATED

Not Qualified

1

NOT SPECIFIED

NOT SPECIFIED

SILICON

BYD77D,115

NXP Semiconductors

RECTIFIER DIODE

END

WRAP AROUND

2

YES

ROUND

GLASS

SINGLE

.85 A

.025 us

AVALANCHE

1

LONG FORM

200 V

175 Cel

O-LELF-R2

ISOLATED

Not Qualified

1

NOT SPECIFIED

NOT SPECIFIED

SILICON

PRLL4001,115

NXP Semiconductors

RECTIFIER DIODE

END

WRAP AROUND

2

YES

ROUND

GLASS

SINGLE

.68 A

1

LONG FORM

50 V

175 Cel

-65 Cel

O-LELF-R2

ISOLATED

Not Qualified

LOW LEAKAGE CURRENT

1

NOT SPECIFIED

NOT SPECIFIED

SILICON

CSD10060G

Wolfspeed

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

16.5 A

1.8 V

SCHOTTKY

1

SMALL OUTLINE

Rectifier Diodes

600 V

175 Cel

EFFICIENCY

R-PSSO-G2

CATHODE

Not Qualified

1

TO-263AB

250 A

NOT SPECIFIED

NOT SPECIFIED

SILICON CARBIDE

NRVTS10120MFST1G

Onsemi

RECTIFIER DIODE

DUAL

FLAT

5

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

10 A

.825 V

SCHOTTKY

55 uA

1

SMALL OUTLINE

Rectifier Diodes

120 V

150 Cel

EFFICIENCY

-55 Cel

Matte Tin (Sn) - annealed

R-PDSO-F5

1

CATHODE

FREE WHEELING DIODE, LOW POWER LOSS

1

200 A

e3

30

260

SILICON

AEC-Q101

NRVTS10120MFST3G

Onsemi

RECTIFIER DIODE

DUAL

FLAT

5

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

10 A

.825 V

SCHOTTKY

55 uA

1

SMALL OUTLINE

Rectifier Diodes

120 V

150 Cel

EFFICIENCY

-55 Cel

Matte Tin (Sn) - annealed

R-PDSO-F5

1

CATHODE

FREE WHEELING DIODE, LOW POWER LOSS

1

200 A

e3

30

260

SILICON

AEC-Q101

NRVTS1045EMFST3G

Onsemi

RECTIFIER DIODE

DUAL

FLAT

5

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

10 A

.6 V

SCHOTTKY

50 uA

1

SMALL OUTLINE

Rectifier Diodes

45 V

150 Cel

EFFICIENCY

-55 Cel

Matte Tin (Sn) - annealed

R-PDSO-F5

1

CATHODE

FREE WHEELING DIODE, LOW POWER LOSS

1

210 A

e3

30

260

SILICON

AEC-Q101

NRVTS1545EMFST1G

Onsemi

RECTIFIER DIODE

DUAL

FLAT

5

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

15 A

.6 V

SCHOTTKY

50 uA

1

SMALL OUTLINE

Rectifier Diodes

45 V

175 Cel

EFFICIENCY

-55 Cel

Matte Tin (Sn) - annealed

R-PDSO-F5

1

CATHODE

FREE WHEELING DIODE, LOW POWER LOSS

1

210 A

e3

30

260

SILICON

AEC-Q101

NRVTS1545EMFST3G

Onsemi

RECTIFIER DIODE

DUAL

FLAT

5

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

15 A

.6 V

SCHOTTKY

50 uA

1

SMALL OUTLINE

Rectifier Diodes

45 V

175 Cel

EFFICIENCY

-55 Cel

Matte Tin (Sn) - annealed

R-PDSO-F5

1

CATHODE

FREE WHEELING DIODE, LOW POWER LOSS

1

210 A

e3

30

260

SILICON

AEC-Q101

NTS10120MFST1G

Onsemi

RECTIFIER DIODE

DUAL

FLAT

5

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

10 A

.825 V

SCHOTTKY

55 uA

1

SMALL OUTLINE

Rectifier Diodes

120 V

150 Cel

EFFICIENCY

-55 Cel

Matte Tin (Sn) - annealed

R-PDSO-F5

1

CATHODE

FREE WHEELING DIODE, LOW POWER LOSS

1

200 A

e3

30

260

SILICON

NTS10120MFST3G

Onsemi

RECTIFIER DIODE

DUAL

FLAT

5

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

10 A

.825 V

SCHOTTKY

55 uA

1

SMALL OUTLINE

Rectifier Diodes

120 V

150 Cel

EFFICIENCY

-55 Cel

Matte Tin (Sn) - annealed

R-PDSO-F5

1

CATHODE

FREE WHEELING DIODE, LOW POWER LOSS

1

200 A

e3

30

260

SILICON

NTS1045EMFST1G

Onsemi

RECTIFIER DIODE

DUAL

FLAT

5

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

10 A

.6 V

SCHOTTKY

50 uA

1

SMALL OUTLINE

Rectifier Diodes

45 V

150 Cel

EFFICIENCY

-55 Cel

Matte Tin (Sn) - annealed

R-PDSO-F5

1

CATHODE

FREE WHEELING DIODE, LOW POWER LOSS

1

210 A

e3

30

260

SILICON

NTS1045EMFST3G

Onsemi

RECTIFIER DIODE

DUAL

FLAT

5

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

10 A

.6 V

SCHOTTKY

50 uA

1

SMALL OUTLINE

Rectifier Diodes

45 V

150 Cel

EFFICIENCY

-55 Cel

Tin (Sn)

R-PDSO-F5

1

CATHODE

FREE WHEELING DIODE, LOW POWER LOSS

1

210 A

e3

30

260

SILICON

NTS1545MFST1G

Onsemi

RECTIFIER DIODE

DUAL

FLAT

5

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

15 A

.57 V

SCHOTTKY

120 uA

1

SMALL OUTLINE

Rectifier Diodes

45 V

150 Cel

EFFICIENCY

-55 Cel

Matte Tin (Sn) - annealed

R-PDSO-F5

1

CATHODE

FREE WHEELING DIODE, LOW POWER LOSS

1

210 A

e3

30

260

SILICON

NTS1545MFST3G

Onsemi

RECTIFIER DIODE

DUAL

FLAT

5

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

15 A

.57 V

SCHOTTKY

120 uA

1

SMALL OUTLINE

Rectifier Diodes

45 V

150 Cel

EFFICIENCY

-55 Cel

Matte Tin (Sn) - annealed

R-PDSO-F5

1

CATHODE

FREE WHEELING DIODE, LOW POWER LOSS

1

210 A

e3

30

260

SILICON

NTSB40200CTG

Onsemi

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

20 A

1.45 V

SCHOTTKY

100 uA

2

SMALL OUTLINE

Rectifier Diodes

200 V

150 Cel

EFFICIENCY

-55 Cel

MATTE TIN

R-PSSO-G2

1

CATHODE

FREE WHEELING DIODE, LOW POWER LOSS

1

250 A

e3

30

260

SILICON

NTSB40200CTT4G

Onsemi

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

20 A

1.45 V

SCHOTTKY

100 uA

2

SMALL OUTLINE

Rectifier Diodes

200 V

150 Cel

EFFICIENCY

-55 Cel

Matte Tin (Sn) - annealed

R-PSSO-G2

1

CATHODE

FREE WHEELING DIODE, LOW POWER LOSS

1

250 A

e3

30

260

SILICON

SJPW-T4

Sanken Electric

RECTIFIER DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

5 A

.55 V

SCHOTTKY

500 uA

1

SMALL OUTLINE

40 V

150 Cel

EFFICIENCY

-40 Cel

R-PDSO-C2

HIGH RELIABILITY

1

80 A

NOT SPECIFIED

NOT SPECIFIED

SILICON

VS-20ETF12STRL-M3

Vishay Intertechnology

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

20 A

1.31 V

.4 us

100 uA

1

SMALL OUTLINE

1200 V

150 Cel

FAST SOFT RECOVERY

-40 Cel

Matte Tin (Sn)

R-PSSO-G2

1

CATHODE

FREE WHEELING DIODE

1

TO-263AB

355 A

e3

30

245

SILICON

VS-20ETF12STRR-M3

Vishay Intertechnology

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

20 A

1.31 V

.4 us

100 uA

1

SMALL OUTLINE

1200 V

150 Cel

FAST SOFT RECOVERY

-40 Cel

Matte Tin (Sn)

R-PSSO-G2

1

CATHODE

FREE WHEELING DIODE

1

TO-263AB

355 A

e3

30

245

SILICON

VS-20ETS08STRR-M3

Vishay Intertechnology

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

20 A

1.1 V

100 uA

1

SMALL OUTLINE

800 V

150 Cel

HIGH VOLTAGE

-40 Cel

Matte Tin (Sn)

R-PSSO-G2

1

CATHODE

1

TO-263AB

300 A

e3

30

245

SILICON

VS-20ETS12STRR-M3

Vishay Intertechnology

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

20 A

1.1 V

100 uA

1

SMALL OUTLINE

1200 V

150 Cel

HIGH VOLTAGE

-40 Cel

Matte Tin (Sn)

R-PSSO-G2

1

CATHODE

1

TO-263AB

300 A

e3

30

245

SILICON

VSSA210HM3/61T

Vishay Intertechnology

RECTIFIER DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1.7 A

.7 V

SCHOTTKY

150 uA

1

SMALL OUTLINE

100 V

150 Cel

EFFICIENCY

-40 Cel

R-PDSO-C2

FREE WHEELING DIODE, LOW POWER LOSS

1

DO-214AC

60 A

SILICON

AEC-Q101

Diodes & Rectifiers

Diodes and rectifiers are electronic components that allow current to flow in one direction only, and they are widely used in electronic circuits for signal processing, power conversion, and protection.

A diode is a two-terminal electronic component that allows current to flow in one direction only. It consists of a P-N junction, which acts as a one-way valve for current flow. When the diode is forward-biased, it allows current to flow in the forward direction, while when it is reverse-biased, it blocks the current flow.

Rectifiers are electronic devices that convert AC voltage to DC voltage. They consist of one or more diodes arranged in a specific configuration, such as half-wave, full-wave, or bridge rectifier. Rectifiers allow the current to flow in only one direction, effectively converting the AC voltage to DC voltage.

Diodes and rectifiers are used in a wide range of applications, such as power supplies, battery chargers, voltage regulators, and signal processing circuits. They offer several advantages over other types of components, such as simplicity, efficiency, and reliability.

Diodes and rectifiers come in different package sizes and current ratings, depending on the application and the required performance. They can be integrated into a circuit board or mounted in a separate enclosure, depending on the application and the space available.