SS120 Schottky Diode 200V 1A DO-214AC Equivalent & Substitute Parts

Part Overview

The SS120 is an active Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 200V DC reverse voltage and 1A average rectified current in a surface mount DO-214AC (SMA) package. This component is designed for applications requiring fast switching characteristics and low forward voltage drop typical of Schottky technology.

Substitute parts are identified when equivalent electrical ratings, package compatibility, and compliance certifications align with the original specification. The SS120 maintains active product status with 7537 units in current inventory.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	950 mV @ 1 A	mV
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55°C ~ 150°C	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution eligibility for the SS120 is determined by the following critical parameters:

Voltage Rating: Reverse voltage (Vr) must equal or exceed 200V
Current Rating: Average rectified current (Io) must equal or exceed 1A
Package Compatibility: Must use DO-214AC or SMA package designation
Mounting Type: Must be surface mount
Technology: Schottky diode classification
Compliance: RoHS3 compliance required

The MS120_R1_00001 manufactured by Panjit International Inc. satisfies all substitution criteria. Both parts share identical voltage and current ratings, use the same DO-214AC (SMA) package, and maintain equivalent compliance certifications.

Parameter Comparison

Parameter	SS120 (Taiwan Semiconductor)	MS120_R1_00001 (Panjit International)	Match Status
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	Equivalent
Current - Average Rectified (Io)	1 A	1 A	Equivalent
Voltage - Forward (Vf) (Max) @ If	950 mV @ 1 A	900 mV @ 1 A	Compatible (MS120_R1_00001 lower)
Package / Case	DO-214AC, SMA	DO-214AC, SMA	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Operating Temperature - Junction	-55°C ~ 150°C	-65°C ~ 175°C	Compatible (MS120_R1_00001 wider range)
Technology	Schottky	Schottky	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent

Engineering Selection Recommendations

SS120 (Taiwan Semiconductor Corporation)

The SS120 is suitable for applications where the specified forward voltage of 950 mV at 1A and junction temperature range of -55°C to 150°C meet design requirements. This part maintains active product status with established supply availability. RoHS3 compliance and REACH unaffected status satisfy regulatory requirements for commercial and industrial applications.

MS120_R1_00001 (Panjit International Inc.)

The MS120_R1_00001 provides equivalent electrical performance with a lower forward voltage (900 mV at 1A) and extended operating temperature range (-65°C to 175°C). This substitute is suitable for applications requiring improved thermal performance or lower power dissipation. Both parts are RoHS3 compliant and REACH unaffected. The MS120_R1_00001 maintains higher inventory availability (28976 units) compared to the SS120.

Both parts are classified as active products with identical voltage and current ratings, making them functionally interchangeable in DO-214AC (SMA) surface mount applications.

Frequently Asked Questions (FAQ)

Q: Can the MS120_R1_00001 directly replace the SS120 in existing designs?

A: Yes. Both parts share identical voltage ratings (200V), current ratings (1A), and package designation (DO-214AC/SMA). The MS120_R1_00001 exhibits lower forward voltage (900 mV versus 950 mV at 1A) and a wider operating temperature range, making it functionally compatible for direct substitution.

Q: What is the significance of the forward voltage difference between these parts?

A: The SS120 specifies 950 mV maximum forward voltage at 1A, while the MS120_R1_00001 specifies 900 mV maximum at 1A. This 50 mV difference results in lower power dissipation with the MS120_R1_00001. Circuit designs accounting for forward voltage drop will experience reduced heat generation with the substitute part.

Q: Are both parts suitable for high-temperature applications?

A: The SS120 operates from -55°C to 150°C junction temperature. The MS120_R1_00001 extends this range to -65°C to 175°C, providing 25°C additional headroom at the upper temperature limit. Applications requiring operation near 150°C should evaluate the MS120_R1_00001 for improved thermal margin.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SS120 and MS120_R1_00001 are RoHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes. Moisture sensitivity level is identical (MSL 1 - Unlimited) for both parts.

Q: What package considerations apply to these Schottky diodes?

A: Both parts use the DO-214AC package, also designated as SMA. This is a surface mount package suitable for automated assembly. The identical package designation ensures mechanical and electrical compatibility on PCB layouts designed for either part.

Q: How do the reverse leakage current specifications compare?

A: The SS120 specifies 100 µA reverse leakage at 200V, while the MS120_R1_00001 specifies 500 nA at 200V. The MS120_R1_00001 exhibits significantly lower leakage current, which may be advantageous in low-power or precision applications where leakage contributes to overall circuit current consumption.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message