SK33B

Schottky Rectifier

The SK33B is a schottky rectifier from Micro Commercial Components. View the full SK33B datasheet below including key specifications, pinout, electrical characteristics, absolute maximum ratings.

Official SK33B datasheet (PDF) — the source this page was extracted from.

Manufacturer

Micro Commercial Components

SK33B Key Specifications

Parameter	Value
Current - Average Rectified (Io)	3A
Reverse Leakage Current	500 µA @ 30 V
Mounting Type	Surface Mount
Operating Temperature - Junction	-55°C ~ 150°C
Package / Case	DO-214AA, SMB
Packaging	MouseReel
Clock Speed	Fast Recovery =< 500ns, > 200mA (Io) Hz
Standard Pack Qty	3000
Supplier Device Package	DO-214AA (SMB)
Diode Technology	Schottky
Reverse Voltage (Max)	30 V
Forward Voltage (Max)	500 mV @ 3 A

SK33B Overview

Part: SK33B-L — Micro Commercial Components Corp.

Type: Schottky Rectifier

Description: 3 Amp Schottky Rectifier with a 30V maximum DC blocking voltage, featuring low forward voltage and high current capability for surface mount applications.

Operating Conditions:

Operating temperature: -55°C to +125°C
Max DC Blocking Voltage: 30V

Absolute Maximum Ratings:

Max DC Blocking Voltage: 30V
Max continuous current: 3.0A (Average Forward Current)
Max junction temperature: +125°C
Max storage temperature: +150°C

Key Specs:

Average Forward Current: 3.0A
Peak Forward Surge Current: 100A (8.3ms, Half Sine)
Maximum Instantaneous Forward Voltage: 0.50V (IFM = 3.0A; TJ = 25°C)
Maximum DC Reverse Current: 0.1mA (TJ = 25°C)
Maximum DC Reverse Current: 10mA (TJ = 100°C)
Typical Junction Capacitance: 210 pF (Measured at 1.0MHz, VR=4.0V)
Maximum Recurrent Peak Reverse Voltage: 30V
Typical Thermal Resistance (Junction to Lead): 10°C/W

Features:

Lead Free Finish/RoHS Compliant
For Surface Mount Applications
Extremely Low Thermal Resistance
Halogen Free. 'Green' Device
High Current Capability With Low Forward Voltage
Epoxy Meets UL 94 V-0 Flammability Rating
Moisture Sensitivity Level 1

Applications:

Package:

Surface Mount package (Dimensions: 5.08–5.59 mm length, 4.06–4.85 mm width)

SK33B Features

Lead Free Finish/RoHS Compliant(Note 1) ("P" Suffix D esignates Compliant. See O rdering I nformation)
For Surface Mount Applications
Extremely Low Thermal Resistance
Halogen Free. 'Green' Device (Note 2)
High Current Capability With Low Forward Voltage
Epoxy Meets UL 94 V-0 Flammability Rating
Moisture Sensitivity Level 1

SK33B Pin Configuration

SK33B Pinout

Package: SMB (DO-214AA)

Pin Number	Pin Name	Type	Description
1	Cathode	–	Cathode (marked end)
2	Anode	+	Anode

Notes

SK33B-L is a 3 Amp Schottky Rectifier with 30V maximum recurrent peak reverse voltage rating.
This is a 2-pin surface-mount diode in SMB (DO-214AA) package.
The cathode end is marked with a band on the component body.
Maximum forward voltage: 0.75 V @ IF(AV) = 3.0 A, TJ = 25°C.
Typical thermal resistance: 20°C/W (junction to case).

SK33B Electrical Characteristics

Average Forward Current	I F(AV)	3 .0A	See Fig. 1
Peak Forward Surge Current	I FSM	10 0A	8.3ms, H alf S ine
Maximum Instantaneous Forward Voltage SK32B-L~~SK34B-L SK35B-L~~SK36B-L SK38B-L~SK310B-L	V F	0 . 5 0V 0 . 75 V 0 . 8 5V	I FM = 3 .0A; T J =25 ⁰ C *
Maximum DC Reverse Current a t Rated DC Blocking Voltage	I R	0 . 1m A 1 0 m A	T J =25 ⁰ C T J = 100 ⁰ C
Typical Junction Capacitance SK32B-L~~SK34B-L SK35B-L~~SK36B-L SK38B-L~SK310B-L	C J	210 pF 160 pF 125 pF	Measured at 1.0MHz, VR=4.0V

SK33B Absolute Maximum Ratings

Operating Junction Temperature Range:SK32B-L~SK34B-L: -55°C to +125°C
Operating Junction Temperature Range:SK35B-L~SK3 6 B-L: -55°C to +150°C
Operating Junction Temperature Range:SK38B-L~SK310B-L: -55°C to +175°C
Storage Temperature Range: -55 ⁰ C to +150 ⁰ C
Typical Thermal Resistance: 10°C/W Junction to Lead
Typical Thermal Resistance: 20°C/W Junction to Case
Typical Thermal Resistance: 55°C/W Junction to Ambient

MCC Part Number	Device Marking	Maximum Recurrent Peak Reverse Voltage	Maximum RMS Voltage	Maximum DC Blocking Voltage
SK32B-L	SK32B	2 0V	14 V	2 0V
SK33B-L	SK33B	3 0V	21 V	3 0V
SK34B-L	SK34B	4 0V	28 V	4 0V
SK35B-L	SK35B	5 0V	35 V	5 0V
SK36B-L	SK36B	6 0V	42 V	6 0V
SK38B-L	SK38B	8 0V	56 V	8 0V
SK310B-L	SK310B	1 00V	7 0V	1 00V

Variants on the same datasheet

These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.

Part Number	Manufacturer	Package
SK310B-L	Micro Commercial Components	—
SK32B-L	Micro Commercial Components	—
SK33B-L	Micro Commercial Components	—
SK33B-LTP	Micro Commercial Components	DO-214AA, SMB
SK34B-L	Micro Commercial Components	—
SK35B-L	Micro Commercial Components	—
SK36B-L	Micro Commercial Components	—
SK38B-L	Micro Commercial Components	—

Other Discrete Semiconductors

AO3401A – Alpha & Omega Semiconductor, P-Channel MOSFET
2N3904 – onsemi, NPN General - Purpose Amplifier
1N4148W-13-F – Diodes Incorporated, Surface-Mount Fast Switching Diode
1N4148W-7-F – Diodes Incorporated, Surface-Mount Fast Switching Diode
1N4148WS – onsemi, Fast Switching Diode
1N4148WS-13-F – Diodes Incorporated, Fast Switching Diode
1N4148WS-7-F – Diodes Incorporated, Fast Switching Diode
1N4148WSQ – Diodes Incorporated, Fast Switching Diode

All Discrete Semiconductors datasheets All Micro Commercial Components datasheets (22)

Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

Ask your AI agent about the SK33B

Connect SheetsData to Claude, Cursor, Codex or any MCP client and your agent reads this datasheet for you: pinout, limits, register maps and design checks, with the numbers taken from the PDF.

claude mcp add --transport http sheetsdata https://mcp.sheetsdata.com/mcp

Then ask: "Can the SK33B run from my 12 V rail? Check it against the datasheet limits."

Create a free account $2 of usage every month, no card needed.