SS23-TP Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS23-TP is a 30V, 2A Schottky rectifier diode manufactured by Micro Commercial Co in the DO-214AC (SMA) surface mount package. This component is classified as obsolete, necessitating identification of equivalent alternatives for ongoing production and repair applications. Schottky diodes in this voltage and current class are widely used in power supply circuits, reverse polarity protection, and high-frequency rectification applications where fast recovery characteristics are required.

Key Parameters

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

Substitute Part Grouping Explanation

Substitution of the SS23-TP is determined by strict equivalence across the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) Maximum: 30V minimum
Current - Average Rectified (Io): 2A minimum
Package / Case: DO-214AC or SMA equivalent
Mounting Type: Surface Mount
Technology: Schottky
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Secondary Compatibility Factors:

Forward voltage (Vf) characteristics
Reverse leakage current specifications
Operating temperature range
RoHS and REACH compliance status

Substitute parts are classified into two categories:

Direct Equivalents: Parts meeting all primary criteria with identical or superior electrical performance and current ratings (2A).

Functional Alternatives: Parts meeting primary voltage and package criteria but with reduced current ratings (1A) or modified electrical characteristics. These alternatives are suitable only where circuit design permits reduced current capacity.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max)	Io (Avg Rectified)	Vf (Max) @ If	Reverse Leakage @ Vr	Package	Product Status	Temp Range (Junction)
SS23-TP	Micro Commercial Co	30V	2A	550 mV @ 2A	500 µA @ 30V	DO-214AC (SMA)	Obsolete	-55 to 125°C
SS23-LTP	Micro Commercial Co	30V	2A	550 mV @ 2A	500 µA @ 30V	DO-214AC (SMA)	Not For New Designs	-55 to 125°C
B230A-13-F	Diodes Incorporated	30V	2A	500 mV @ 2A	500 µA @ 30V	DO-214AC (SMA)	Active	-65 to 150°C
B230LA-E3/5AT	Vishay General Semiconductor - Diodes Division	30V	2A	500 mV @ 2A	500 µA @ 30V	DO-214AC (SMA)	Active	-65 to 150°C
B230LA-E3/61T	Vishay General Semiconductor - Diodes Division	30V	2A	500 mV @ 2A	500 µA @ 30V	DO-214AC (SMA)	Active	-65 to 150°C
STPS130A	STMicroelectronics	30V	1A	550 mV @ 1A	10 µA @ 30V	DO-214AC (SMA)	Active	-55 to 150°C
STPS1L30A	STMicroelectronics	30V	1A	395 mV @ 1A	200 µA @ 30V	DO-214AC (SMA)	Active	-55 to 150°C

Engineering Selection Recommendations

Direct Replacement (2A Current Rating):

The B230A-13-F (Diodes Incorporated), B230LA-E3/5AT, and B230LA-E3/61T (Vishay General Semiconductor - Diodes Division) are direct electrical equivalents to the SS23-TP. All three parts maintain the 30V reverse voltage rating and 2A average rectified current specification. The B230A-13-F offers improved forward voltage characteristics (500 mV vs. 550 mV @ 2A) and an extended operating temperature range (-65 to 150°C vs. -55 to 125°C). All three alternatives carry Active product status and ROHS3 compliance, ensuring long-term availability and regulatory conformance.

Intermediate Alternative (Same Manufacturer, Tape & Reel Packaging):

The SS23-LTP (Micro Commercial Co) provides electrical equivalence to the original SS23-TP with identical electrical specifications. However, this part carries a "Not For New Designs" status, limiting its suitability for new production applications despite current inventory availability.

Functional Alternatives (1A Current Rating):

The STPS130A and STPS1L30A (STMicroelectronics) maintain the 30V reverse voltage rating and DO-214AC package compatibility but operate at 1A average rectified current. These parts are suitable only for circuit applications where the design current requirement does not exceed 1A. The STPS1L30A exhibits superior forward voltage characteristics (395 mV @ 1A) compared to the STPS130A (550 mV @ 1A), resulting in lower power dissipation in low-current applications.

Compliance and Availability:

All recommended substitutes comply with ROHS3 and REACH requirements. The B230 series (Diodes Incorporated and Vishay) and STMicroelectronics STPS series maintain Active product status, ensuring continued manufacturing support and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the SS23-TP be directly replaced with the STPS130A or STPS1L30A?

A: Direct replacement is not recommended. While both STMicroelectronics parts share the 30V reverse voltage rating and DO-214AC package, they are rated for 1A average rectified current versus the SS23-TP's 2A rating. Substitution is permissible only if circuit design analysis confirms that the maximum current requirement does not exceed 1A.

Q: What is the difference between B230A-13-F and B230LA-E3/5AT?

A: Both parts are electrically equivalent 30V, 2A Schottky diodes in the DO-214AC package. The primary difference is packaging format: B230A-13-F is supplied in Cut Tape (CT) & Digi-Reel format, while B230LA-E3/5AT is supplied in Tape & Reel (TR) format. Selection depends on assembly line requirements and tape reel compatibility.

Q: Why is the SS23-LTP listed as "Not For New Designs" when it is electrically identical to the SS23-TP?

A: The "Not For New Designs" status indicates that while the part remains in inventory and is functionally equivalent, the manufacturer has discontinued active development and support for this product line. For new production designs, selection of Active-status alternatives such as the B230A-13-F or B230LA-E3/5AT is recommended to ensure long-term supply chain stability.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed in this reference—SS23-LTP, B230A-13-F, B230LA-E3/5AT, B230LA-E3/61T, STPS130A, and STPS1L30A—carry ROHS3 Compliant status and are REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What is the significance of the forward voltage (Vf) difference between the SS23-TP (550 mV @ 2A) and B230A-13-F (500 mV @ 2A)?

A: The 50 mV difference in forward voltage represents a 9% reduction in voltage drop across the diode at rated current. In power supply and rectification circuits, this translates to lower power dissipation and improved efficiency. The B230A-13-F is the preferred choice for applications where thermal management or power efficiency is a design consideration.

Q: Can the B230LA-E3/5AT and B230LA-E3/61T be used interchangeably?

A: Yes. Both parts are electrically and mechanically identical 30V, 2A Schottky diodes in the DO-214AC package from Vishay General Semiconductor - Diodes Division. The designation suffix (5AT vs. 61T) reflects different tape reel specifications or manufacturing lot codes. Selection between these parts depends on tape reel compatibility with assembly equipment.

Q: What is the operating temperature advantage of the B230 series over the SS23-TP?

A: The B230A-13-F, B230LA-E3/5AT, and B230LA-E3/61T operate across a junction temperature range of -65 to 150°C, compared to the SS23-TP's -55 to 125°C range. This extended range provides 10°C additional low-temperature operation and 25°C additional high-temperature operation, offering greater design margin in extreme thermal environments.

Q: Is reverse leakage current a critical factor in selecting a substitute?

A: Reverse leakage current becomes significant in applications requiring low standby power consumption or high-impedance reverse-biased operation. The SS23-TP specifies 500 µA @ 30V reverse leakage. The STPS130A exhibits substantially lower leakage (10 µA @ 30V), while the STPS1L30A specifies 200 µA @ 30V. For applications sensitive to leakage current, the STPS130A is the preferred alternative despite its 1A current limitation.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message