SS23 Schottky Diode 30V 2A DO-214AA Equivalent & Substitute Parts

Part Overview

The SS23 is a surface mount Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 30V reverse voltage and 2A average rectified current in a DO-214AA (SMB) package. This component is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility within the Schottky diode rectifier category. Alternative sources become necessary for supply chain continuity, inventory management, and design flexibility across manufacturing partners.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 2 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	400	µA @ 30 V
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 125	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the SS23 are grouped based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Critical Parameters for Substitution:

Voltage - DC Reverse (Vr) (Max): 30V
Current - Average Rectified (Io): 2A
Package / Case: DO-214AA, SMB (mechanical compatibility)
Mounting Type: Surface Mount
Technology: Schottky
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Acceptable Variation Ranges:

Voltage - Forward (Vf) (Max) @ If: 440 mV to 550 mV @ 2A
Current - Reverse Leakage @ Vr: 200 µA to 500 µA @ 30V
Operating Temperature - Junction: -55°C minimum to 125°C minimum (extended ranges acceptable)

Parts that deviate from the 2A current rating (such as SK13-LTP at 1A, SK33B-LTP at 3A, or SK43BL-TP at 4A) are listed for reference but do not qualify as direct substitutes due to current specification mismatch. Parts with different package types (such as B230A-13-F in SMA) are not direct mechanical substitutes despite electrical compatibility.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	Reverse Leakage @ Vr [µA]	Package	Tj (°C)	Product Status
SS23	Taiwan Semiconductor Corporation	30	2	500 @ 2A	400 @ 30V	DO-214AA, SMB	-55 to 125	Active
B230-13-F	Diodes Incorporated	30	2	500 @ 2A	500 @ 30V	DO-214AA, SMB	-65 to 150	Active
SK23	Good-Ark Semiconductor	30	2	550 @ 2A	500 @ 30V	DO-214AA, SMB	-55 to 150	Active
SL23-E3/52T	Vishay General Semiconductor - Diodes Division	30	2	440 @ 2A	400 @ 30V	DO-214AA, SMB	-55 to 125	Active
SL23-E3/5BT	Vishay General Semiconductor - Diodes Division	30	2	440 @ 2A	400 @ 30V	DO-214AA, SMB	-55 to 125	Active
SS23S-E3/61T	Vishay General Semiconductor - Diodes Division	30	2	550 @ 2A	200 @ 30V	DO-214AA, SMB	-55 to 150	Active

Engineering Selection Recommendations

Direct Substitutes (Identical Electrical and Mechanical Specifications):

The following parts are qualified direct substitutes for the SS23 based on matching 30V reverse voltage, 2A average rectified current, DO-214AA SMB package, and Schottky technology:

B230-13-F (Diodes Incorporated): Active product status. Extended operating temperature range (-65°C to 150°C) provides broader thermal capability. ROHS3 compliant.
SK23 (Good-Ark Semiconductor): Active product status. Extended upper operating temperature to 150°C. ROHS3 compliant.
SL23-E3/52T (Vishay General Semiconductor - Diodes Division): Active product status. Cut Tape packaging. Lower forward voltage (440 mV @ 2A). ROHS3 compliant.
SL23-E3/5BT (Vishay General Semiconductor - Diodes Division): Active product status. Tape & Reel packaging. Lower forward voltage (440 mV @ 2A). ROHS3 compliant.
SS23S-E3/61T (Vishay General Semiconductor - Diodes Division): Active product status. Extended upper operating temperature to 150°C. Lower reverse leakage (200 µA @ 30V). ROHS3 compliant.

All direct substitutes carry Active product status and ROHS3 compliance, ensuring continued design support and regulatory conformance.

Non-Direct Alternatives (Current Rating Mismatch):

The following parts do not qualify as direct substitutes due to current rating deviation:

SK13-LTP (Micro Commercial Co): 1A rating (below 2A requirement). Not For New Designs status.
SK33B-LTP (Micro Commercial Co): 3A rating (above 2A requirement). Not For New Designs status.
SK43BL-TP (Micro Commercial Co): 4A rating (above 2A requirement). Not For New Designs status.

Package Variant (Electrical Equivalent, Mechanical Incompatible):

B230A-13-F (Diodes Incorporated): Identical electrical specifications (30V, 2A, Schottky) but packaged in DO-214AC SMA format. Not a direct mechanical substitute for DO-214AA SMB applications.

Frequently Asked Questions (FAQ)

Q: Can I use SK33B-LTP (3A) or SK43BL-TP (4A) as substitutes for the SS23 (2A)?

A: No. While these parts share the same 30V reverse voltage rating and DO-214AA SMB package, the current ratings differ. SK33B-LTP is rated for 3A and SK43BL-TP for 4A, which do not match the SS23 2A specification. Additionally, both are marked Not For New Designs, indicating discontinued design support.

Q: What is the difference between B230-13-F and B230A-13-F?

A: B230-13-F is packaged in DO-214AA SMB format and is a direct electrical and mechanical substitute for SS23. B230A-13-F is packaged in DO-214AC SMA format, which is physically different and not compatible with DO-214AA SMB footprints. SMA and SMB packages have different land patterns and cannot be interchanged on the same PCB.

Q: Are all substitute parts ROHS3 compliant?

A: All direct substitutes listed (B230-13-F, SK23, SL23-E3/52T, SL23-E3/5BT, SS23S-E3/61T) are ROHS3 compliant. The non-direct alternatives (SK13-LTP, SK33B-LTP, SK43BL-TP) are also ROHS3 compliant but do not qualify as substitutes due to current rating mismatch.

Q: What is the significance of forward voltage (Vf) variation among substitutes?

A: Forward voltage ranges from 440 mV to 550 mV across the substitute parts at 2A. This variation affects power dissipation and thermal performance in the application circuit. Lower Vf (440 mV in SL23 variants) results in reduced power loss; higher Vf (550 mV in SK23 and SS23S-E3/61T) results in increased power loss. Circuit design must accommodate this range or select a specific part based on thermal requirements.

Q: Can I use SS23S-E3/61T in place of SS23 if my application requires lower reverse leakage?

A: Yes. SS23S-E3/61T is a direct substitute with identical 30V, 2A, DO-214AA SMB specifications. It offers lower reverse leakage (200 µA @ 30V versus 400 µA @ 30V in SS23) and extended operating temperature range (-55°C to 150°C versus -55°C to 125°C). Both are Active product status and ROHS3 compliant.

Q: What packaging options are available for direct substitutes?

A: Direct substitutes are available in two packaging formats: Cut Tape (CT) and Tape & Reel (TR). SL23-E3/52T is supplied in Cut Tape; SL23-E3/5BT, SS23S-E3/61T, and the original SS23 are supplied in Tape & Reel. B230-13-F and SK23 are available in Cut Tape & Digi-Reel or Tape & Reel formats. Packaging selection depends on assembly process requirements and volume.

Q: Are there any REACH or ECCN restrictions on these parts?

A: All listed parts, including direct substitutes and non-direct alternatives, are REACH Unaffected and classified as EAR99 for export control purposes. No additional regulatory restrictions apply beyond standard ROHS3 compliance.

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