S2D General Purpose Rectifier Diode 200V 2A SMB Equivalent & Substitute Parts

Part Overview

The S2D is an active general purpose rectifier diode manufactured by SMC Diode Solutions, rated for 200V DC reverse voltage and 2A average rectified current in a surface mount SMB (DO-214AA) package. This component is designed for standard recovery applications requiring reliable rectification in compact form factors. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications where the primary part number becomes unavailable or where alternative sourcing is required.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 2 A	V
Reverse Recovery Time (trr)	2.5	µs
Current - Reverse Leakage @ Vr	5	µA @ 200 V
Capacitance @ Vr, F	30	pF @ 4V, 1MHz
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the S2D general purpose rectifier diode is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 200 V
Current - Average Rectified (Io): 2 A
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 2 A
Reverse Recovery Time (trr): 2.5 µs
Current - Reverse Leakage @ Vr: ≤ 5 µA @ 200 V
Capacitance @ Vr, F: 30 pF @ 4V, 1MHz

Mechanical Equivalence Criteria:

Package / Case: DO-214AA, SMB (surface mount)
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C to 150°C

Compliance Equivalence Criteria:

RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
Product Status: Active

Substitute parts must satisfy all electrical parameters within the specified tolerances, maintain identical mechanical packaging for direct board-level replacement, and meet or exceed the compliance certifications of the primary part.

Parameter Comparison

Parameter	S2D (SMC Diode Solutions)	S2D_R1_00001 (Panjit International Inc.)	Match Status
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	Equivalent
Current - Average Rectified (Io)	2 A	2 A	Equivalent
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 2 A	1.1 V @ 2 A	Equivalent
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Equivalent
Current - Reverse Leakage @ Vr	5 µA @ 200 V	1 µA @ 200 V	Compatible (Lower leakage)
Capacitance @ Vr, F	30 pF @ 4V, 1MHz	30 pF @ 4V, 1MHz	Equivalent
Package / Case	DO-214AA, SMB	DO-214AA, SMB	Equivalent
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent
Product Status	Active	Active	Equivalent

Engineering Selection Recommendations

The S2D_R1_00001 manufactured by Panjit International Inc. is a parametric equivalent substitute for the S2D. Both parts are active products with identical electrical ratings, mechanical packaging, and compliance certifications. The S2D_R1_00001 demonstrates superior reverse leakage characteristics (1 µA versus 5 µA at 200 V), which represents an improvement over the primary part specification and does not introduce any compatibility concerns.

Selection between the primary part and substitute should be based on:

Availability and Lead Time: Current inventory status and procurement timelines
Supply Chain Requirements: Preferred supplier relationships and qualification status
Compliance Documentation: Both parts meet ROHS3 and MSL 1 requirements
Cost Considerations: Pricing and volume discount structures from respective manufacturers

Both parts are suitable for direct substitution in applications requiring 200V, 2A general purpose rectification in SMB surface mount packages.

Frequently Asked Questions (FAQ)

Q: Can the S2D_R1_00001 be used as a direct replacement for the S2D on existing PCBs?

A: Yes. The S2D_R1_00001 is mechanically and electrically equivalent to the S2D. Both use the DO-214AA (SMB) surface mount package with identical pinout and footprint, enabling direct board-level substitution without layout modifications.

Q: What is the significance of the lower reverse leakage current in the S2D_R1_00001?

A: The S2D_R1_00001 exhibits 1 µA reverse leakage at 200 V compared to 5 µA for the S2D. This represents improved leakage performance and is compatible with all applications designed for the S2D specification. Lower leakage reduces power dissipation and improves circuit efficiency.

Q: Are both parts RoHS compliant?

A: Yes. Both the S2D and S2D_R1_00001 are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, meeting current environmental and handling requirements.

Q: What is the difference in REACH status between these parts?

A: The S2D is REACH Affected, while the S2D_R1_00001 is REACH Unaffected. Both statuses are valid for component selection; however, REACH Unaffected status may simplify regulatory documentation for certain supply chain requirements.

Q: Can these parts be used interchangeably in high-frequency switching applications?

A: Both parts are rated for standard recovery with reverse recovery time of 2.5 µs. They are suitable for standard rectification applications. Applications requiring faster switching or soft recovery characteristics require evaluation against specific circuit requirements.

Q: What is the operating temperature range for both parts?

A: Both the S2D and S2D_R1_00001 operate across a junction temperature range of -55°C to 150°C, supporting industrial and commercial temperature environments.

Q: Are there any package or footprint differences between these parts?

A: No. Both parts use the DO-214AA (SMB) surface mount package with identical mechanical dimensions, pinout, and PCB footprint. No design changes are required for substitution.

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