STMicroelectronics Diodes & Rectifiers 2,400+

Reset All
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

1N5822U02B

STMicroelectronics

RECTIFIER DIODE

DUAL

NO LEAD

2

YES

RECTANGULAR

UNSPECIFIED

SINGLE

3 A

.4 V

SCHOTTKY

1

SMALL OUTLINE

Rectifier Diodes

40 V

150 Cel

POWER

R-XDSO-N2

Not Qualified

FREE WHEELING DIODE

1

80 A

NOT SPECIFIED

NOT SPECIFIED

SILICON

FERD15S50

STMicroelectronics

RECTIFIER DIODE

NOT SPECIFIED

NOT SPECIFIED

STPS640CT

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

3 A

.57 V

SCHOTTKY

10000 uA

2

FLANGE MOUNT

Rectifier Diodes

40 V

POWER

MATTE TIN

R-PSFM-T3

CATHODE

Not Qualified

FREEWHEELING DIODE

1

TO-220AB

75 A

e3

SILICON

STTH60AC06CW

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

30 A

2 V

.07 us

10 uA

2

FLANGE MOUNT

600 V

175 Cel

HIGH VOLTAGE ULTRA FAST RECOVERY

R-PSFM-T3

FREE WHEELING DIODE

1

TO-247

280 A

NOT SPECIFIED

NOT SPECIFIED

SILICON

STPS40M60CG-TR

STMicroelectronics

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

20 A

.355 V

SCHOTTKY

2

SMALL OUTLINE

Rectifier Diodes

60 V

EFFICIENCY

MATTE TIN

R-PSSO-G2

1

CATHODE

LOW LEAKAGE CURRENT

1

TO-263AB

220 A

e3

SILICON

STPS3030CT

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

15 A

.42 V

SCHOTTKY

2

FLANGE MOUNT

Rectifier Diodes

30 V

EFFICIENCY

MATTE TIN

R-PSFM-T3

CATHODE

Not Qualified

FREE WHEELING DIODE

1

TO-220AB

250 A

e3

SILICON

1N6640U02D

STMicroelectronics

RECTIFIER DIODE

DUAL

NO LEAD

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

.3 A

.63 V

.02 us

1

SMALL OUTLINE

Rectifier Diodes

75 V

175 Cel

-65 Cel

R-PDSO-N2

Not Qualified

FREE WHEELING DIODE

1

2 A

NOT SPECIFIED

NOT SPECIFIED

SILICON

STTH302RL

STMicroelectronics

RECTIFIER DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

3 A

.75 V

.035 us

1

LONG FORM

Rectifier Diodes

200 V

175 Cel

EFFICIENCY

MATTE TIN

O-PALF-W2

ISOLATED

Not Qualified

FREE WHEELING DIODE

1

DO-201AD

130 A

e3

SILICON

STPS1545CFP

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

7.5 A

.57 V

SCHOTTKY

2

FLANGE MOUNT

Rectifier Diodes

45 V

POWER

MATTE TIN

R-PSFM-T3

ISOLATED

Not Qualified

FREE WHEELING DIODE

1

TO-220AB

150 A

e3

SILICON

STPS30M60CT

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

15 A

.59 V

SCHOTTKY

80 uA

2

FLANGE MOUNT

Rectifier Diodes

60 V

EFFICIENCY

MATTE TIN

R-PSFM-T3

CATHODE

LOW LEAKAGE CURRENT

1

TO-220AB

400 A

e3

SILICON

STTH6006W

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

2

NO

RECTANGULAR

PLASTIC/EPOXY

SINGLE

60 A

1.4 V

.06 us

1

FLANGE MOUNT

Rectifier Diodes

600 V

175 Cel

HIGH VOLTAGE

MATTE TIN

R-PSFM-T2

1

Not Qualified

1

400 A

e3

SILICON

1N1188R

STMicroelectronics

RECTIFIER DIODE

UPPER

SOLDER LUG

1

NO

ROUND

METAL

SINGLE

40 A

1.5 V

500 uA

1

POST/STUD MOUNT

400 V

175 Cel

GENERAL PURPOSE

-55 Cel

O-MUPM-D1

ANODE

Not Qualified

44 W

LEAKAGE CURRENT IS NOT AT 25 DEG C

1

700 A

SILICON

STPS3170

STMicroelectronics

RECTIFIER DIODE

NOT SPECIFIED

NOT SPECIFIED

STPS1545CG-TR

STMicroelectronics

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

7.5 A

.57 V

SCHOTTKY

15000 uA

2

SMALL OUTLINE

Rectifier Diodes

45 V

FAST RECOVERY POWER

Matte Tin (Sn) - annealed

R-PSSO-G2

1

CATHODE

Not Qualified

FREE WHEELING DIODE

1

TO-263AB

150 A

e3

30

245

SILICON

STPS120M

STMicroelectronics

RECTIFIER DIODE

SINGLE

GULL WING

1

YES

SQUARE

PLASTIC/EPOXY

SINGLE

1 A

.41 V

SCHOTTKY

1

SMALL OUTLINE

Rectifier Diodes

20 V

150 Cel

Matte Tin (Sn) - annealed

S-PSSO-G1

1

CATHODE

Not Qualified

HIGH EFFICIENCY

1

DO-216AA

50 A

e3

30

260

SILICON

STTH15AC06CT

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

7.5 A

2.2 V

.05 us

1 uA

2

FLANGE MOUNT

600 V

175 Cel

HIGH VOLTAGE ULTRA FAST RECOVERY

R-PSFM-T3

CATHODE

FREE WHEELING DIODE

1

TO-220AB

80 A

NOT SPECIFIED

NOT SPECIFIED

SILICON

STPS30SM100SFP

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

SINGLE

30 A

.56 V

SCHOTTKY

1

FLANGE MOUNT

Rectifier Diodes

100 V

150 Cel

EFFICIENCY

R-PSFM-T3

ISOLATED

Not Qualified

1

TO-220AB

530 A

NOT SPECIFIED

NOT SPECIFIED

SILICON

STTH1R04U

STMicroelectronics

RECTIFIER DIODE

DUAL

C BEND

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

1 A

1.5 V

5 uA

1

400 V

SMALL OUTLINE

400 V

175 Cel

ULTRA FAST RECOVERY

MATTE TIN

R-PDSO-C2

1

Not Qualified

FREE WHEELING DIODE

1

30 A

e3

30

260

SILICON

STPS40A150CHYT

STMicroelectronics

RECTIFIER DIODE

SINGLE

PIN/PEG

3

NO

SQUARE

METAL

COMMON CATHODE, 2 ELEMENTS

20 A

1.05 V

SCHOTTKY

14 uA

2

150 V

FLANGE MOUNT

150 V

175 Cel

GENERAL PURPOSE

-65 Cel

S-MSFM-P3

1

TO-254AA

220 A

SILICON

ESA/SCC 5106/024

1N1187R

STMicroelectronics

RECTIFIER DIODE

UPPER

SOLDER LUG

1

NO

ROUND

METAL

SINGLE

40 A

1.5 V

500 uA

1

POST/STUD MOUNT

300 V

175 Cel

GENERAL PURPOSE

-55 Cel

O-MUPM-D1

ANODE

Not Qualified

44 W

LEAKAGE CURRENT IS NOT AT 25 DEG C

1

700 A

SILICON

STPS10H100SFY

STMicroelectronics

RECTIFIER DIODE

DUAL

FLAT

3

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

10 A

.845 V

SCHOTTKY

8 uA

1

100 V

SMALL OUTLINE

100 V

175 Cel

GENERAL PURPOSE

-40 Cel

MATTE TIN

R-PDSO-F3

1

CATHODE

FREE WHEELING DIODE, LOW LEAKAGE CURRENT

1

TO-277A

230 A

e3

260

SILICON

AEC-Q101

STTH16R04CG-TR

STMicroelectronics

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

8 A

1.1 V

.05 us

2

SMALL OUTLINE

Rectifier Diodes

400 V

175 Cel

ULTRA FAST RECOVERY

-40 Cel

R-PSSO-G2

CATHODE

Not Qualified

FREE WHEELING DIODE, SOFT FACTOR IS 0.4

1

120 A

NOT SPECIFIED

NOT SPECIFIED

SILICON

BAT46AZ1

STMicroelectronics

RECTIFIER DIODE

AXIAL

WIRE

2

NO

ROUND

GLASS

SINGLE

.15 A

1 V

SCHOTTKY

5 uA

1

LONG FORM

100 V

125 Cel

-65 Cel

O-LALF-W2

ISOLATED

Not Qualified

.15 W

1

.75 A

SILICON

BAR42

STMicroelectronics

RECTIFIER DIODE

DUAL

GULL WING

3

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

.1 A

.65 V

.005 us

SCHOTTKY

.5 uA

1

SMALL OUTLINE

Rectifier Diodes

30 V

150 Cel

-40 Cel

TIN LEAD

R-PDSO-G3

Not Qualified

.25 W

FAST SWITCHING

1

.75 A

e0

SILICON

STPS12045T

STMicroelectronics

RECTIFIER DIODE

UPPER

UNSPECIFIED

4

NO

RECTANGULAR

PLASTIC/EPOXY

2 BANKS, SEPARATE, 1 ELEMENT

60 A

.91 V

SCHOTTKY

1000 uA

2

45 V

FLANGE MOUNT

Other Diodes

45 V

150 Cel

POWER

-65 Cel

MATTE TIN

R-PUFM-X4

1

Not Qualified

FREE WHEELING DIODE

1

700 A

e3

SILICON

STPS20M80CT

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

10 A

.53 V

SCHOTTKY

2

FLANGE MOUNT

Rectifier Diodes

80 V

EFFICIENCY

R-PSFM-T3

CATHODE

LOW LEAKAGE CURRENT

1

TO-220AB

220 A

NOT SPECIFIED

NOT SPECIFIED

SILICON

BAT42AZ2

STMicroelectronics

RECTIFIER DIODE

AXIAL

WIRE

2

NO

ROUND

GLASS

SINGLE

.2 A

.65 V

.005 us

SCHOTTKY

.5 uA

1

LONG FORM

30 V

125 Cel

-65 Cel

O-LALF-W2

ISOLATED

Not Qualified

.2 W

1

4 A

SILICON

STTH1202D

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

2

NO

RECTANGULAR

PLASTIC/EPOXY

SINGLE

12 A

.95 V

.035 us

1

FLANGE MOUNT

Rectifier Diodes

200 V

175 Cel

ULTRA FAST RECOVERY

MATTE TIN

R-PSFM-T2

CATHODE

Not Qualified

FREE WHEELING DIODE

1

TO-220AC

100 A

e3

SILICON

FERD15S50SB-TR

STMicroelectronics

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

.48 V

650 uA

1

SMALL OUTLINE

50 V

150 Cel

GENERAL PURPOSE

R-PSSO-G2

1

CATHODE

FREE WHEELING DIODE

1

100 A

SILICON

STPSC12H065G-TR

STMicroelectronics

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

12 A

1.75 V

SCHOTTKY

120 uA

1

SMALL OUTLINE

Rectifier Diodes

650 V

POWER

-40 Cel

R-PSSO-G2

CATHODE

1

90 A

SILICON CARBIDE

STPS640CF

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

3 A

.57 V

SCHOTTKY

10000 uA

2

FLANGE MOUNT

Rectifier Diodes

40 V

POWER

TIN LEAD

R-PSFM-T3

ISOLATED

Not Qualified

FREE WHEELING DIODE

1

75 A

e0

SILICON

STPS40SM80CFP

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

20 A

.56 V

SCHOTTKY

2

FLANGE MOUNT

Rectifier Diodes

80 V

EFFICIENCY

MATTE TIN

R-PSFM-T3

ISOLATED

LOW LEAKAGE CURRENT

1

TO-220AB

200 A

e3

SILICON

STPS40SM100CGTRH

STMicroelectronics

RECTIFIER DIODE

SINGLE

GULL WING

YES

RECTANGULAR

20 A

.58 V

SCHOTTKY

SMALL OUTLINE

Rectifier Diodes

100 V

R-PSSO-G2

TO-263AB

530 A

STPS40M120CT

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

.79 V

SCHOTTKY

370 uA

2

FLANGE MOUNT

120 V

EFFICIENCY

R-PSFM-T3

CATHODE

LOW LEAKAGE CURRENT

1

TO-220AB

220 A

NOT SPECIFIED

NOT SPECIFIED

SILICON

STTH112

STMicroelectronics

RECTIFIER DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

1 A

1.65 V

.075 us

1

LONG FORM

Rectifier Diodes

1200 V

175 Cel

MATTE TIN

O-PALF-W2

ISOLATED

Not Qualified

FREE WHEELING DIODE, HIGH RELIABILITY, SNUBBER DIODE

1

DO-41

20 A

e3

SILICON

STPS20L60CTN

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

.74 V

SCHOTTKY

350 uA

2

FLANGE MOUNT

60 V

POWER

R-PSFM-T3

CATHODE

LOW LEAKAGE CURRENT

1

TO-220AB

220 A

SILICON

STPS20H100CT-H

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

10 A

.88 V

SCHOTTKY

4.5 uA

2

FLANGE MOUNT

Rectifier Diodes

100 V

POWER

R-PSFM-T3

CATHODE

AVALANCHE RATED, LOW LEAKAGE CURRENT

1

TO-220AB

250 A

NOT SPECIFIED

NOT SPECIFIED

SILICON

STTH30S06W

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

2

NO

RECTANGULAR

PLASTIC/EPOXY

SINGLE

3.6 V

.05 us

50 uA

1

FLANGE MOUNT

600 V

175 Cel

HIGH VOLTAGE ULTRA FAST RECOVERY

-40 Cel

R-PSFM-T2

SOFT FACTOR IS 0.35

1

DO-247

180 A

NOT SPECIFIED

NOT SPECIFIED

SILICON

1N5822-T

STMicroelectronics

RECTIFIER DIODE

AXIAL

WIRE

2

NO

ROUND

PLASTIC/EPOXY

SINGLE

3 A

SCHOTTKY

1

LONG FORM

40 V

150 Cel

POWER

O-PALF-W2

ISOLATED

FREE WHEELING DIODE

1

DO-201AD

80 A

SILICON

STPSC10H065BY-TR

STMicroelectronics

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

SINGLE

10 A

1.65 V

SCHOTTKY

100 uA

1

SMALL OUTLINE

650 V

175 Cel

POWER

-40 Cel

R-PSSO-G2

CATHODE

1

80 A

NOT SPECIFIED

NOT SPECIFIED

SILICON CARBIDE

AEC-Q101

STPS40200CHYT

STMicroelectronics

RECTIFIER DIODE

SINGLE

PIN/PEG

3

NO

SQUARE

METAL

COMMON CATHODE, 2 ELEMENTS

20 A

.93 V

SCHOTTKY

10 uA

2

200 V

FLANGE MOUNT

200 V

175 Cel

GENERAL PURPOSE

S-MSFM-P3

1

TO-254AA

220 A

NOT SPECIFIED

NOT SPECIFIED

SILICON

STPS40L15CW

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

20 A

.36 V

SCHOTTKY

670000 uA

2

FLANGE MOUNT

Rectifier Diodes

15 V

POWER

Matte Tin (Sn)

R-PSFM-T3

CATHODE

Not Qualified

1

TO-247AD

310 A

e3

SILICON

STPS30M120STN

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

SINGLE

.9 V

SCHOTTKY

345 uA

1

FLANGE MOUNT

120 V

150 Cel

EFFICIENCY

R-PSFM-T3

CATHODE

1

TO-220AB

260 A

SILICON

STTH60SW03CW

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

30 A

1.85 V

.027 us

15 uA

2

FLANGE MOUNT

Rectifier Diodes

300 V

175 Cel

HIGH VOLTAGE ULTRA FAST RECOVERY POWER

R-PSFM-T3

1

TO-247

200 A

NOT SPECIFIED

NOT SPECIFIED

SILICON

STPS6100CB

STMicroelectronics

RECTIFIER DIODE

SINGLE

GULL WING

2

YES

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

3 A

.59 V

SCHOTTKY

10000 uA

2

SMALL OUTLINE

Rectifier Diodes

100 V

POWER

MATTE TIN

R-PSSO-G2

CATHODE

Not Qualified

1

TO-252AA

50 A

e3

SILICON

STTH8003CY

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

40 A

1.25 V

.06 us

2

IN-LINE

Rectifier Diodes

300 V

175 Cel

HIGH VOLTAGE ULTRA FAST SOFT RECOVERY

MATTE TIN

R-PSIP-T3

Not Qualified

FREE WHEELING DIODE

1

400 A

e3

SILICON

STPS6035CPI

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

3

NO

RECTANGULAR

PLASTIC/EPOXY

COMMON CATHODE, 2 ELEMENTS

60 A

.84 V

SCHOTTKY

500 uA

2

FLANGE MOUNT

Rectifier Diodes

35 V

POWER

-65 Cel

Matte Tin (Sn)

R-PSFM-T3

ISOLATED

Not Qualified

FREE WHEELING DIODE

1

400 A

e3

SILICON

STPSC406D

STMicroelectronics

RECTIFIER DIODE

SINGLE

THROUGH-HOLE

2

NO

RECTANGULAR

PLASTIC/EPOXY

SINGLE

4 A

1.9 V

SCHOTTKY

1

FLANGE MOUNT

Rectifier Diodes

600 V

175 Cel

GENERAL PURPOSE

-40 Cel

MATTE TIN

R-PSFM-T2

CATHODE

Not Qualified

1

TO-220AC

40 A

e3

SILICON CARBIDE

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.