1SS244T-72 Equivalent & Substitute Parts Reference

Part Overview

The 1SS244T-72, manufactured by Rohm Semiconductor, is a general-purpose rectifier diode specified for 220 V reverse voltage and 200 mA average rectified current, packaged in a DO-204AG (DO-34) through-hole axial case. This device utilizes standard diode technology and features a 75 ns reverse recovery time. The product is currently classified as obsolete, which makes it necessary to identify compatible alternative models with equivalent or better characteristics in the same product category for sustained sourcing, qualification, and design continuity.

Substiute Parts

1SS244T-72

Rohm SemiconductorIn Stock: 54081SS244T-72 Datasheet

Current PartRFQ

STTH102

STMicroelectronicsIn Stock: 1615STTH102 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are selected based on the critical electrical and mechanical parameters that define compatibility within the "Diodes, Rectifiers" category. The allowed parameters for direct substitution are:

• Voltage - DC Reverse (Vr) (Max)
• Current - Average Rectified (Io)
• Voltage - Forward (Vf) (Max) at rated current
• Reverse Recovery Time (trr)
• Current - Reverse Leakage at maximum Vr
• Mounting Type
• Package / Case type
• Operating Temperature - Junction
• RoHS and REACH compliance
• Moisture Sensitivity Level (MSL)
• Product status

All substitute parts listed match or exceed these critical parameters as explicitly provided.

Parameter Comparison

Engineering Selection Recommendations

Component selection based exclusively on product status, RoHS compliance, REACH status, and MSL indicates that the 1SS244T-72 is obsolete, while the STTH102 is active and available. Both parts are ROHS3 compliant, have unlimited moisture sensitivity levels, and are REACH unaffected. The selection aligns with supply continuity and environmental compliance requirements.

Frequently Asked Questions (FAQ)

Q1: What are the primary electrical parameters for substituting the 1SS244T-72 diode?
A1: The main substitution criteria are voltage rating, current rating, forward voltage at rated current, reverse recovery time, and reverse leakage current.

Q2: Is package compatibility required when selecting a substitute diode?
A2: Yes, the substitute must match the mechanical mounting type and package/case as specified.

Q3: How does the product status influence substitute selection?
A3: The obsolete status of 1SS244T-72 necessitates selection of active, in-production substitute parts to ensure supply reliability.

Q4: Are RoHS and REACH compliance mandatory for substitution?
A4: Both RoHS3 compliance and REACH Unaffected status are important for substituting components in regulated environments.

Q5: Can STTH102 be directly used in existing designs with 1SS244T-72?
A5: The STTH102 meets or exceeds the explicitly provided performance and compliance parameters for equivalent substitution within the same category and mounting style.

Q6: Why are only listed parameters considered for substitution?
A6: Only explicit, provided parameters are used to ensure precise and objective component equivalence without introducing assumptions.