SR105 Schottky Diode Equivalent & Substitute Parts

Part Overview

The SR105 is an active Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 50 V DC reverse voltage and 1 A average rectified current in a DO-204AL (DO-41) through-hole axial package. This component is used in applications requiring fast recovery rectification with low forward voltage drop characteristics. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility within the Schottky diode rectifier category.

Substiute Parts

SR105

Taiwan Semiconductor CorporationIn Stock: 880SR105 Datasheet

Current PartRFQ

SR105 A0G

Taiwan Semiconductor CorporationIn Stock: 852SR105 A0G Datasheet

Parametric EquivalentRFQ

10DQ05

SMC Diode SolutionsIn Stock: 479610DQ05 Datasheet

SimilarRFQ

11DQ05

SMC Diode SolutionsIn Stock: 232111DQ05 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SR105 are classified based on electrical parameter equivalence and mechanical compatibility. The primary substitution criteria are:

Electrical Equivalence Parameters:

• Voltage - DC Reverse (Vr) (Max): 50 V
• Current - Average Rectified (Io): 1 A or greater
• Voltage - Forward (Vf) (Max): 700 mV or lower at rated current
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: within acceptable range at 50 V

Mechanical Compatibility Parameters:

• Mounting Type: Through Hole
• Package / Case: DO-204AL, DO-41, or Axial equivalent
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts are grouped into two categories: Parametric Equivalents (identical electrical and mechanical specifications with different packaging) and Similar Parts (matching core electrical ratings with minor parameter variations that remain within functional tolerance).

Parameter Comparison

Engineering Selection Recommendations

SR105 A0G (Parametric Equivalent)

The SR105 A0G is a direct parametric equivalent to the SR105, manufactured by Taiwan Semiconductor Corporation with identical electrical specifications and mechanical compatibility. The only difference is packaging format: SR105 A0G is supplied in Cut Tape (CT) format versus the SR105 in Tape & Reel (TR) format. Both parts are ROHS3 compliant and active products. Selection between these two is determined by procurement and assembly requirements rather than electrical performance.

10DQ05 (Similar Substitute)

The 10DQ05, manufactured by SMC Diode Solutions, meets the core electrical requirements of the SR105 with 50 V reverse voltage rating and 1 A average rectified current. All critical parameters including forward voltage, recovery speed, and reverse leakage current are equivalent. The 10DQ05 operates across a narrower temperature range (-65°C to 125°C) compared to the SR105 (-55°C to 150°C). Both parts are ROHS3 compliant and active products. The 10DQ05 is suitable for applications within its specified temperature operating window.

11DQ05 (Similar Substitute)

The 11DQ05, manufactured by SMC Diode Solutions, provides a higher current rating of 1.1 A compared to the SR105's 1 A specification, while maintaining the same 50 V reverse voltage rating. Forward voltage is specified at 2 A (760 mV) rather than 1 A. Reverse leakage current is higher at 1 mA @ 50 V versus 500 µA for the SR105. The 11DQ05 operates across the temperature range of -40°C to 150°C. This part is suitable for applications requiring higher current capacity within the same voltage class. Both parts are ROHS3 compliant and active products.

Frequently Asked Questions (FAQ)

Q: Can SR105 A0G be used as a direct replacement for SR105?

A: Yes. The SR105 A0G is a parametric equivalent with identical electrical specifications and mechanical compatibility. The difference is packaging format (Cut Tape versus Tape & Reel). Both are manufactured by Taiwan Semiconductor Corporation and are ROHS3 compliant.

Q: What are the key differences between SR105 and 10DQ05?

A: Both parts share identical voltage ratings (50 V), current ratings (1 A), forward voltage (700 mV @ 1 A), and recovery speed characteristics. The primary difference is the operating temperature range: SR105 operates from -55°C to 150°C, while 10DQ05 operates from -65°C to 125°C. Selection depends on the application's temperature requirements.

Q: Is 11DQ05 a suitable substitute for SR105?

A: The 11DQ05 is suitable for applications where higher current capacity is acceptable or required. It provides 1.1 A average rectified current versus the SR105's 1 A, and maintains the same 50 V reverse voltage rating. However, reverse leakage current is higher (1 mA versus 500 µA), and forward voltage is specified at a higher current level (2 A). Operating temperature range is -40°C to 150°C.

Q: Are all substitute parts in the same physical package?

A: Yes. All listed substitute parts use the DO-204AL (DO-41) axial through-hole package, ensuring mechanical compatibility in PCB layouts and through-hole assembly processes.

Q: What compliance certifications apply to these parts?

A: All parts listed are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating. The SR105 and SR105 A0G are REACH Unaffected. The 10DQ05 and 11DQ05 are REACH Affected. All parts carry ECCN EAR99 classification.

Q: Can these parts be used interchangeably in all applications?

A: Substitution is valid within the electrical and thermal operating parameters of each part. Applications operating at the temperature extremes of the SR105 range (-55°C or above 125°C) require the SR105 or SR105 A0G. Applications requiring current ratings above 1 A benefit from the 11DQ05. All parts meet the core Schottky rectifier specifications for 50 V, 1 A class applications.