S2D-M3/52T Equivalent & Substitute Parts

Part Overview

The S2D-M3/52T is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 200 V DC reverse voltage with 1.5 A average rectified current in a DO-214AA (SMB) package format. The device is actively produced and ROHS3 compliant, making it suitable for standard rectification applications in power supply and signal conditioning circuits.

Equivalent and substitute parts are identified based on matching or exceeding the electrical performance parameters while maintaining compatibility with the DO-214AA surface mount package. Alternative sources and packaging formats are provided to support procurement flexibility and supply chain continuity.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) Maximum	200	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) Maximum @ If	1.15 V @ 1.5 A	V
Reverse Recovery Time (trr)	2	µs
Current - Reverse Leakage @ Vr	1	µA @ 200 V
Capacitance @ Vr, F	16	pF @ 4V, 1MHz
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on electrical parameter alignment with the S2D-M3/52T:

Parametric Equivalents maintain identical reverse voltage (200 V), average rectified current (1.5 A), forward voltage drop (1.15 V @ 1.5 A), and recovery characteristics (2 µs trr). These parts are direct functional replacements with no circuit redesign required. Differences are limited to packaging format (Tape & Reel versus Cut Tape) and manufacturer source.

Manufacturer Recommended Substitutes provide alternative electrical characteristics while maintaining the 200 V reverse voltage rating and DO-214AA package compatibility. These parts differ in one or more of the following parameters: average rectified current (1 A, 2 A, or 3 A), forward voltage drop (875 mV to 950 mV), or recovery speed (fast recovery ≤500 ns versus standard recovery >500 ns). Selection of these alternatives requires verification that the application circuit tolerates the modified electrical performance.

Key parameters determining substitution eligibility:

Voltage - DC Reverse (Vr) Maximum: 200 V (required)
Package / Case: DO-214AA, SMB (required)
Mounting Type: Surface Mount (required)
Current - Average Rectified (Io): 1.5 A (parametric equivalent) or ≥1.5 A (recommended substitute)
Voltage - Forward (Vf): 1.15 V @ 1.5 A (parametric equivalent) or lower (recommended substitute)

Parameter Comparison

Part Number	Manufacturer	Vr (Max) V	Io A	Vf (Max) V	trr µs	Ir @ Vr µA	Packaging	Status
S2D-M3/52T	Vishay	200	1.5	1.15 @ 1.5A	2	1 @ 200V	Tape & Reel	Active
S2D-E3/52T	Vishay	200	1.5	1.15 @ 1.5A	2	1 @ 200V	Cut Tape	Active
S2D-E3/5BT	Vishay	200	1.5	1.15 @ 1.5A	2	1 @ 200V	Tape & Reel	Active
ER1D-LTP	Micro Commercial Co	200	1	0.95 @ 1A	0.035	5 @ 200V	Tape & Reel	Active
ES2D	Good-Ark Semiconductor	200	2	0.95 @ 2A	0.035	10 @ 200V	Cut Tape & Digi-Reel	Active
ES2D-13-F	Diodes Incorporated	200	2	0.92 @ 2A	0.025	5 @ 200V	Cut Tape & Digi-Reel	Active
ES3DB-13-F	Diodes Incorporated	200	3	0.90 @ 3A	0.025	10 @ 200V	Cut Tape & Digi-Reel	Active
MURS120-13-F	Diodes Incorporated	200	1	0.875 @ 1A	0.025	2 @ 200V	Cut Tape & Digi-Reel	Active
MURS220T3G	onsemi	200	2	0.95 @ 2A	0.035	2 @ 200V	Cut Tape & Digi-Reel	Active
RS1DB-13-F	Diodes Incorporated	200	1	1.3 @ 1A	0.15	5 @ 200V	Tape & Reel	Active

Engineering Selection Recommendations

Parametric Equivalent Selection (Direct Replacement)

The parts S2D-E3/52T and S2D-E3/5BT are parametric equivalents of the S2D-M3/52T. All three components share identical electrical specifications: 200 V reverse voltage, 1.5 A average rectified current, 1.15 V forward voltage drop at 1.5 A, and 2 µs reverse recovery time. The only difference is packaging format. S2D-E3/52T is supplied in Cut Tape format, while S2D-E3/5BT is supplied in Tape & Reel format. Both are ROHS3 compliant and actively produced. Selection between these three parts depends solely on procurement packaging requirements and inventory availability.

Manufacturer Recommended Substitute Selection

Manufacturer recommended substitutes are suitable when the application circuit can accommodate modified electrical characteristics. These parts maintain the 200 V reverse voltage rating and DO-214AA surface mount package but differ in current rating, forward voltage, or recovery speed.

Parts with reduced current rating (ER1D-LTP, MURS120-13-F, RS1DB-13-F at 1 A) are applicable only in circuits where the maximum load current does not exceed 1 A. These parts offer lower forward voltage drops (875 mV to 950 mV) and faster recovery times (25 ns to 150 ns), which may improve efficiency in low-current applications.

Parts with increased current rating (ES2D, ES2D-13-F, ES3DB-13-F, MURS220T3G at 2 A or 3 A) provide headroom for higher load currents and are backward compatible with 1.5 A circuits. These parts feature fast recovery characteristics (25 ns to 35 ns) and lower forward voltage drops (875 mV to 950 mV), reducing power dissipation.

All recommended substitutes are ROHS3 compliant and actively produced. RS1DB-13-F is the only exception among active parts with RoHS non-compliant status in its non-F variant (RS1DB-13), but the RS1DB-13-F variant is ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can S2D-E3/52T replace S2D-M3/52T directly in my circuit?

A: Yes. S2D-E3/52T is a parametric equivalent with identical electrical specifications. The only difference is packaging format: S2D-E3/52T is supplied in Cut Tape while S2D-M3/52T is supplied in Tape & Reel. Both are ROHS3 compliant and actively produced. Verify that your assembly equipment supports the Cut Tape format.

Q: What is the difference between standard recovery and fast recovery diodes?

A: The S2D-M3/52T has a reverse recovery time (trr) of 2 µs, classified as standard recovery. Recommended substitutes such as ES2D-13-F and MURS120-13-F have trr values of 25 ns to 35 ns, classified as fast recovery. Fast recovery diodes reduce switching losses and are suitable for higher-frequency applications. Standard recovery diodes are adequate for line-frequency rectification and low-frequency power supply circuits.

Q: Can I use a 2 A rated diode (ES2D-13-F or MURS220T3G) in place of the 1.5 A S2D-M3/52T?

A: Yes. A 2 A rated diode is backward compatible with a 1.5 A circuit. The higher current rating provides design margin and does not affect circuit operation. The forward voltage drop is lower (920 mV to 950 mV versus 1.15 V), which reduces power dissipation. Verify that the diode package and mounting type match your PCB layout.

Q: What does ROHS3 compliance mean?

A: ROHS3 compliance indicates the component meets the Restriction of Hazardous Substances Directive 3 requirements, restricting the use of lead, cadmium, mercury, and other hazardous materials. All active substitute parts listed are ROHS3 compliant except RS1DB-13 (non-F variant), which is discontinued at DiGi Electronics. The active RS1DB-13-F variant is ROHS3 compliant.

Q: Are all substitute parts available in the same DO-214AA package?

A: Yes. All substitute parts listed use the DO-214AA (SMB) surface mount package. This ensures mechanical and electrical compatibility with the original S2D-M3/52T footprint. Verify PCB layout and assembly equipment compatibility with the specific packaging format (Tape & Reel, Cut Tape, or Digi-Reel).

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel packaging supplies components on a continuous reel suitable for automated pick-and-place assembly equipment. Cut Tape packaging supplies components on individual tape segments, typically used for lower-volume assembly or manual placement. Both formats use the same DO-214AA component package. Select based on your assembly process requirements and equipment compatibility.

Q: Can I use RS1DB-13-F as a substitute for S2D-M3/52T?

A: RS1DB-13-F is electrically compatible at 200 V reverse voltage and 1 A average rectified current. However, the forward voltage drop is higher (1.3 V @ 1 A versus 1.15 V @ 1.5 A), and the reverse recovery time is slower (150 ns versus 2 µs). This part is suitable only if your circuit operates at 1 A or lower and can tolerate the increased forward voltage drop and slower recovery characteristics. RS1DB-13-F is ROHS3 compliant and actively produced.

Q: What inventory levels are available for substitute parts?

A: Inventory availability varies by part number and supplier. S2D-E3/52T has 15,100 pieces in stock. ES2D-13-F has 130,906 pieces in stock. MURS220T3G has 100,100 pieces in stock. Verify current inventory with your component supplier before finalizing procurement decisions, as stock levels change continuously.

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