SK23-TP Schottky Diode Equivalent & Substitute Parts

Part Overview

The SK23-TP is a 30V, 2A Schottky rectifier diode manufactured by Micro Commercial Co in the DO-214AA (SMB) surface mount package. This component is classified as obsolete, indicating discontinuation from the original manufacturer. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this diode specification.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	30 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	550 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	500 µA @ 30 V
Package / Case	DO-214AA, SMB
Mounting Type	Surface Mount
Operating Temperature - Junction	-55°C ~ 125°C
Technology	Schottky
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the SK23-TP is determined by strict equivalence across the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 30 V
Current - Average Rectified (Io): 2 A minimum
Package / Case: DO-214AA, SMB (surface mount)
Technology: Schottky rectifier diode
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Acceptable Variations:

Forward voltage (Vf) may vary within typical manufacturing tolerances
Reverse leakage current (Ir) may vary within specified limits
Operating temperature range may extend beyond the original specification
Product status may transition from obsolete to active

Parts meeting all primary criteria are classified as direct equivalents. The B330B-13-F represents an upgraded substitute with higher current rating (3A) and automotive qualification, suitable for applications requiring enhanced performance margins.

Parameter Comparison

Parameter	SK23-TP	B230-13-F	B330B-13-F	MBRS130LT3G	SL23-E3/52T	SL23-E3/5BT	SS23
Manufacturer	Micro Commercial Co	Diodes Incorporated	Diodes Incorporated	onsemi	Vishay	Vishay	Taiwan Semiconductor
Voltage - DC Reverse (Vr) (Max)	30 V	30 V	30 V	30 V	30 V	30 V	30 V
Current - Average Rectified (Io)	2 A	2 A	3 A	2 A	2 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	550 mV @ 2 A	500 mV @ 2 A	500 mV @ 3 A	445 mV @ 2 A	440 mV @ 2 A	440 mV @ 2 A	500 mV @ 2 A
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Current - Reverse Leakage @ Vr	500 µA @ 30 V	500 µA @ 30 V	500 µA @ 30 V	1 mA @ 30 V	400 µA @ 30 V	400 µA @ 30 V	400 µA @ 30 V
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB	DO-214AA, SMB
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55°C ~ 125°C	-65°C ~ 150°C	-55°C ~ 150°C	-65°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Product Status	Obsolete	Active	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Equivalents (Recommended Primary Substitutes):

The following parts provide direct functional equivalence to the SK23-TP with active product status and full compliance certifications:

B230-13-F (Diodes Incorporated): Matches all primary electrical specifications with extended operating temperature range (-65°C ~ 150°C). Active product status with high inventory availability (20,300 pcs). Suitable for direct replacement in all applications.
SL23-E3/52T and SL23-E3/5BT (Vishay General Semiconductor): Both provide identical electrical performance with forward voltage of 440 mV @ 2 A, representing improved efficiency compared to the original SK23-TP specification. Active product status with adequate inventory levels.
SS23 (Taiwan Semiconductor Corporation): Matches all primary specifications with 500 mV forward voltage. Active product status with 6,366 pcs inventory.

Upgraded Substitute (Higher Performance):

B330B-13-F (Diodes Incorporated): Provides 3A current rating with 30V reverse voltage, enabling operation at higher current levels. Includes AEC-Q101 automotive qualification and extended temperature range (-55°C ~ 150°C). Suitable for applications requiring performance margin enhancement or automotive-grade reliability.

Alternative Substitute (Lower Forward Voltage):

MBRS130LT3G (onsemi): Delivers lowest forward voltage (445 mV @ 2 A) among available substitutes, reducing power dissipation. Extended operating temperature range (-65°C ~ 125°C). Higher reverse leakage current (1 mA @ 30 V) requires evaluation for leakage-sensitive applications.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and identical package geometry (DO-214AA, SMB) for direct PCB compatibility.

Frequently Asked Questions (FAQ)

Q: Can the SK23-TP be directly replaced with any of the listed substitute parts?

A: Yes. All listed substitute parts meet the primary electrical and mechanical criteria: 30V reverse voltage, 2A minimum current rating, DO-214AA SMB package, and fast recovery Schottky technology. Direct PCB substitution is supported without design modification.

Q: What is the difference between the B230-13-F and B330B-13-F?

A: The B230-13-F is a 2A direct equivalent with extended temperature range. The B330B-13-F is a 3A upgraded substitute with automotive qualification (AEC-Q101). The B330B-13-F supports higher current applications and provides enhanced reliability margins but is not required for 2A-rated designs.

Q: Are there any forward voltage differences that affect circuit performance?

A: Forward voltage varies across substitutes: SK23-TP (550 mV @ 2A), B230-13-F (500 mV @ 2A), SL23 series (440 mV @ 2A), and MBRS130LT3G (445 mV @ 2A). Lower forward voltages reduce power dissipation and heat generation. Applications sensitive to voltage drop should evaluate the specific forward voltage requirement.

Q: Which substitute offers the best thermal performance?

A: The B230-13-F and B330B-13-F support extended operating temperature ranges up to 150°C junction temperature, compared to 125°C for the original SK23-TP. The MBRS130LT3G also supports -65°C minimum temperature. Selection depends on specific thermal environment requirements.

Q: Is the MBRS130LT3G suitable for all applications?

A: The MBRS130LT3G is suitable for most applications but exhibits higher reverse leakage current (1 mA @ 30V) compared to other substitutes (400-500 µA @ 30V). Applications with strict leakage current specifications should confirm compatibility before selection.

Q: What is the packaging difference between SL23-E3/52T and SL23-E3/5BT?

A: Both parts are electrically identical. SL23-E3/52T is supplied in Cut Tape (CT) packaging, while SL23-E3/5BT is supplied in Tape & Reel (TR) packaging. Selection depends on assembly process requirements and volume handling.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original SK23-TP environmental specifications.

Q: Which substitute has the highest inventory availability?

A: The B330B-13-F has the highest inventory availability with 188,300 pcs in stock, followed by MBRS130LT3G with 905,315 pcs. The B230-13-F has 20,300 pcs available.

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