SS15-LTP Schottky Diode Equivalent & Substitute Parts

Part Overview

The SS15-LTP is a 50V, 1A Schottky rectifier diode manufactured by Micro Commercial Co in the DO-214AC (SMA) surface mount package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Equivalent and substitute parts are necessary for ongoing production support, maintenance applications, and design continuity where this diode was previously specified.

Substiute Parts

SS15-LTP

Micro Commercial CoIn Stock: 1233SS15-LTP Datasheet

Current PartRFQ

SS15

Taiwan Semiconductor CorporationIn Stock: 50992SS15 Datasheet

SimilarRFQ

SS15_R1_00001

Panjit International Inc.In Stock: 1775SS15_R1_00001 Datasheet

Parametric EquivalentRFQ

SS15W_R1_00001

Panjit International Inc.In Stock: 1004SS15W_R1_00001 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SS15-LTP is determined by strict equivalence across the following critical parameters:

• Reverse Voltage Rating (Vr): 50V maximum
• Forward Current Rating (Io): 1A average rectified
• Package Type: DO-214AC (SMA) surface mount
• Technology: Schottky rectifier
• Operating Temperature Range: -55°C to 150°C junction temperature
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected

Substitute parts must match all primary electrical ratings and physical package specifications. Secondary parameters such as forward voltage drop (Vf), reverse leakage current (Ir), and capacitance may vary within acceptable engineering tolerances for the application circuit.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: SS15_R1_00001 (Panjit International Inc.)

The SS15_R1_00001 provides the closest parametric match to the SS15-LTP. This part maintains identical forward voltage characteristics (700 mV @ 1 A) and reverse leakage current (100 µA @ 50 V), ensuring minimal circuit behavior deviation. The part is in Active product status with ROHS3 compliance and REACH unaffected certification. Packaging is supplied as Tape & Reel (TR), suitable for automated assembly processes.

Secondary Substitute: SS15W_R1_00001 (Panjit International Inc.)

The SS15W_R1_00001 is functionally equivalent across all primary electrical ratings and package specifications. This part exhibits elevated reverse leakage current (500 µA @ 50 V) compared to the original SS15-LTP. Selection of this part is appropriate where reverse leakage current variation does not impact circuit performance. Active product status and full regulatory compliance are maintained.

Alternative Substitute: SS15 (Taiwan Semiconductor Corporation)

The SS15 from Taiwan Semiconductor Corporation meets all critical electrical and package requirements. Forward voltage is specified at 750 mV @ 1 A, representing a 50 mV increase over the SS15-LTP specification. Reverse leakage current is rated at 200 µA @ 50 V. This part is in Active product status with ROHS3 compliance. Selection is appropriate where the forward voltage tolerance accommodates the application circuit design margins.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and identical operating temperature ranges, ensuring regulatory and environmental compatibility with the original SS15-LTP specification.

Frequently Asked Questions (FAQ)

Q: Can the SS15 (Taiwan Semiconductor) be used as a direct replacement for SS15-LTP?

A: The SS15 meets all primary electrical ratings (50V, 1A) and package specifications (DO-214AC, SMA). The forward voltage specification of 750 mV @ 1 A is 50 mV higher than the SS15-LTP. Direct substitution is permissible where circuit design margins accommodate this voltage variation.

Q: What is the difference between SS15_R1_00001 and SS15W_R1_00001?

A: Both parts are manufactured by Panjit International Inc. and share identical voltage ratings, current ratings, and package specifications. The primary difference is reverse leakage current: SS15_R1_00001 is specified at 100 µA @ 50 V, while SS15W_R1_00001 is specified at 500 µA @ 50 V. Selection depends on circuit requirements for reverse leakage performance.

Q: Are all substitute parts available in the same packaging format as the original SS15-LTP?

A: All substitute parts use the DO-214AC (SMA) surface mount package, ensuring mechanical and electrical compatibility with existing PCB layouts. The SS15_R1_00001 and SS15W_R1_00001 are supplied in Tape & Reel (TR) format for automated assembly. The SS15 from Taiwan Semiconductor is available in standard packaging.

Q: Why is the SS15-LTP marked as "Not For New Designs"?

A: This designation indicates the part has reached end-of-life status from the original manufacturer (Micro Commercial Co). Active substitute parts from alternative manufacturers provide equivalent functionality for both new applications and ongoing production support of existing designs.

Q: Do all substitute parts maintain the same regulatory compliance as the SS15-LTP?

A: All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original SS15-LTP. Compliance certifications are maintained across all alternatives.

Q: What is the significance of the fast recovery speed specification?

A: The fast recovery specification (≤ 500ns, > 200mA) indicates switching performance characteristics. All listed substitute parts maintain this specification, ensuring equivalent performance in high-frequency switching applications and rectification circuits.

Q: Can capacitance variations between substitute parts affect circuit performance?

A: Capacitance specifications are provided where available (SS15-LTP: 45pF @ 4V, 1MHz; SS15_R1_00001: 50pF @ 4V, 1MHz). Capacitance variations of this magnitude typically have minimal impact on standard rectification applications. Circuit-specific analysis is required for high-frequency or sensitive timing applications.