Equivalent & Substitute Parts for 1SS302A,LF

Part Overview

The 1SS302A,LF is a general-purpose diode array manufactured by Toshiba Semiconductor and Storage. This component features a 1 pair series connection configuration with a maximum reverse voltage of 80 V and average rectified current of 100 mA per diode. The device is housed in a surface mount SC-70 (SOT-323) package and is classified as Active product status.

Equivalent and substitute parts are identified to address supply chain requirements, inventory availability, or specific application constraints while maintaining electrical and mechanical compatibility within the defined parameter envelope.

Substiute Parts

1SS302A,LF

Toshiba Semiconductor and StorageIn Stock: 37211SS302A,LF Datasheet

Current PartRFQ

1PS302,115

Nexperia USA Inc.In Stock: 241911PS302,115 Datasheet

SimilarRFQ

DAN217UT106

Rohm SemiconductorIn Stock: 125418DAN217UT106 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1SS302A,LF are qualified based on the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Diode configuration: 1 pair series connection
• Maximum reverse voltage: 80 V
• Package type: SC-70 or SOT-323 surface mount
• Technology classification: Standard
• Speed classification: Small signal, any speed
• RoHS3 compliance and MSL 1 rating

Allowable Parameter Variations:

• Average rectified current (Io): Equal to or greater than 100 mA per diode
• Forward voltage (Vf): Equal to or less than 1.2 V @ 100 mA
• Reverse recovery time (trr): Equal to or less than 4 ns
• Reverse leakage current: Equal to or less than 500 nA @ 80 V
• Maximum junction temperature: Equal to or greater than 150°C

Parts meeting these criteria are electrically and mechanically compatible for direct substitution in applications designed for the 1SS302A,LF.

Parameter Comparison

Engineering Selection Recommendations

1PS302,115 (Nexperia USA Inc.)

The 1PS302,115 is an Active product manufactured by Nexperia USA Inc. This substitute part meets all electrical parameters of the 1SS302A,LF with the exception of average rectified current, which is rated at 170 mA per diode compared to 100 mA for the main part. This higher current rating provides additional design margin and is fully compatible with applications designed for the 1SS302A,LF. The part is supplied in Tape & Reel packaging and maintains identical voltage, temperature, and compliance specifications. This part is suitable for new designs and ongoing production.

DAN217UT106 (Rohm Semiconductor)

The DAN217UT106 is a parametric equivalent manufactured by Rohm Semiconductor with identical electrical specifications to the 1SS302A,LF across all critical parameters. The part is classified as Not For New Designs, indicating that Rohm has discontinued active development and support for this product line. While the DAN217UT106 remains electrically compatible, its use is restricted to legacy applications and existing inventory management. For new design initiatives, the 1PS302,115 or the primary part 1SS302A,LF are the recommended selections.

Frequently Asked Questions (FAQ)

Q: Can the 1PS302,115 be used as a direct replacement for the 1SS302A,LF?

A: Yes. The 1PS302,115 meets all electrical and mechanical compatibility requirements. The higher current rating (170 mA versus 100 mA) does not create incompatibility; it provides additional design margin. Both parts share identical reverse voltage, forward voltage, reverse recovery time, and temperature specifications. The SC-70 and SOT-323 package designations are equivalent.

Q: What is the difference between the SC-70 and SOT-323 package designations?

A: SC-70 and SOT-323 refer to the same physical package form. Both designations describe a surface mount package with three leads. The 1SS302A,LF is supplied in SC-70 package format, while the 1PS302,115 is supplied in SOT-323 format. These are mechanically and electrically interchangeable.

Q: Why is the DAN217UT106 marked as "Not For New Designs"?

A: The "Not For New Designs" status indicates that Rohm Semiconductor has discontinued active product development and support for this part. While the DAN217UT106 remains electrically equivalent to the 1SS302A,LF, it should be used only for legacy applications or replacement of existing inventory. New designs should utilize the 1PS302,115 or the primary part 1SS302A,LF.

Q: Are there any compliance or certification differences between the substitute parts?

A: No. All three parts—1SS302A,LF, 1PS302,115, and DAN217UT106—are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Compliance certifications are equivalent across all parts.

Q: What is the significance of the higher current rating in the 1PS302,115?

A: The 1PS302,115 is rated for 170 mA average rectified current per diode, compared to 100 mA for the 1SS302A,LF. This higher rating indicates the part can safely conduct greater current without exceeding thermal or electrical limits. In applications designed for 100 mA operation, the 1PS302,115 operates with additional thermal margin and is fully compatible.

Q: Can the 1SS302A,LF be used in applications requiring the 1PS302,115?

A: The 1SS302A,LF can be used in applications designed for the 1PS302,115 only if the application current requirement does not exceed 100 mA per diode. If the application requires sustained operation above 100 mA, the 1SS302A,LF is not suitable and the 1PS302,115 must be used.

Q: What packaging formats are available for these parts?

A: The 1SS302A,LF is supplied in Cut Tape (CT) & Digi-Reel format. The 1PS302,115 is supplied in Tape & Reel (TR) format. The DAN217UT106 is supplied in Cut Tape (CT) & Digi-Reel format. All three parts are surface mount components in SC-70 or SOT-323 package configurations.