S1D Equivalent & Substitute Parts

Part Overview

The onsemi S1D is a general-purpose rectifier diode rated for 200 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (SMA) package. This device is classified as Not For New Designs, indicating it has reached end-of-life status. The standard recovery characteristic (>500 ns) and 1.8 µs reverse recovery time identify this as a legacy general-purpose rectifier suitable for non-critical applications. Equivalent and substitute parts are necessary to support existing designs, provide design flexibility, and ensure supply chain continuity for applications where the S1D specifications remain functionally adequate.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	V
Reverse Recovery Time (trr)	1.8	µs
Current - Reverse Leakage @ Vr	1	µA @ 200 V
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the S1D is determined by strict equivalence in the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 200 V
Current - Average Rectified (Io): 1 A
Package / Case: DO-214AC (SMA) or compatible surface mount package
Mounting Type: Surface Mount
Operating Temperature Range: Minimum -55°C to +150°C junction temperature

Acceptable Variation Parameters:

Voltage - Forward (Vf) (Max) @ If: Substitute parts may exhibit lower forward voltage (improved efficiency) without functional impact
Reverse Recovery Time (trr): Substitute parts with faster recovery (≤500 ns) are functionally compatible and represent performance improvements
Current - Reverse Leakage @ Vr: Substitute parts with higher leakage (up to 5 µA @ 200 V) remain within acceptable limits for general-purpose applications
Capacitance @ Vr, F: Variation in junction capacitance does not affect substitution eligibility for rectifier applications

Package Compatibility:

DO-214AC (SMA) and DO-214BA (GF1) packages are mechanically compatible for surface mount applications with identical pin pitch and footprint dimensions
All substitute parts maintain RoHS3 compliance and MSL 1 rating

Substitute parts listed below meet all critical matching parameters and are electrically and mechanically interchangeable with the S1D.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ 1A [V]	trr [ns]	Ir @ 200V [µA]	Package	Product Status
S1D	onsemi	200	1	1.1	1800	1	DO-214AC (SMA)	Not For New Designs
ES1D	EVVO Semi	200	1	1.0	35	5	DO-214AC (SMA)	Active
RS1D	Taiwan Semiconductor Corporation	200	1	1.3	150	5	DO-214AC (SMA)	Active
CGRA4003-G	Comchip Technology	200	1	1.1	—	5	DO-214AC (SMA)	Active
EGF1D-E3/5CA	Vishay General Semiconductor - Diodes Division	200	1	1.0	50	5	DO-214BA (GF1)	Active
EGF1D-E3/67A	Vishay General Semiconductor - Diodes Division	200	1	1.0	50	5	DO-214BA (GF1)	Active
ES1D-13-F	Diodes Incorporated	200	1	0.92	25	5	DO-214AC (SMA)	Active
ES1D-E3/5AT	Vishay General Semiconductor - Diodes Division	200	1	0.92	25	5	DO-214AC (SMA)	Active
ES1D-E3/61T	Vishay General Semiconductor - Diodes Division	200	1	0.92	25	5	DO-214AC (SMA)	Active
ES1D-LTP	Micro Commercial Co	200	1	0.95	35	5	DO-214AC (SMA)	Active
ES1D-M3/61T	Vishay General Semiconductor - Diodes Division	200	1	0.92	25	5	DO-214AC (SMA)	Active

Engineering Selection Recommendations

All listed substitute parts are electrically and mechanically equivalent to the S1D and satisfy the critical parameters of 200 V reverse voltage, 1 A average rectified current, and surface mount DO-214AC (SMA) or compatible DO-214BA (GF1) packaging.

Product Status Consideration: The S1D is classified as Not For New Designs. All substitute parts listed are Active products, providing long-term supply assurance and design continuity for new applications or redesigns of existing products.

Compliance and Certification: All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the S1D environmental and regulatory requirements. All parts carry EAR99 ECCN classification and HTSUS code 8541.10.0080.

Performance Characteristics: Substitute parts exhibit improved reverse recovery time characteristics (25 ns to 150 ns versus 1800 ns for the S1D), representing faster switching behavior. Forward voltage drop is equivalent or lower across all substitutes, resulting in reduced power dissipation. Reverse leakage current is higher in substitutes (5 µA versus 1 µA) but remains within acceptable limits for general-purpose rectifier applications.

Package Compatibility: DO-214AC (SMA) package substitutes maintain identical footprint and pin configuration. DO-214BA (GF1) package options (EGF1D-E3/5CA, EGF1D-E3/67A) are mechanically compatible with identical pin pitch and surface mount characteristics, requiring no PCB layout modification.

Temperature Range: The S1D operates from -55°C to +150°C junction temperature. Substitute parts ES1D-LTP extends the upper operating limit to +175°C. All other substitutes maintain the -55°C to +150°C range or extend it to -65°C to +175°C, providing equivalent or improved thermal performance.

Frequently Asked Questions (FAQ)

Q: Can ES1D-E3/61T directly replace S1D without PCB modification?

A: Yes. ES1D-E3/61T is rated for 200 V, 1 A, and uses the DO-214AC (SMA) package with identical pin configuration and footprint to the S1D. No PCB layout changes are required.

Q: What is the difference between DO-214AC (SMA) and DO-214BA (GF1) packages?

A: Both packages are surface mount rectifier packages with identical pin pitch (2.54 mm) and footprint dimensions. DO-214BA (GF1) is the package designation used by Vishay for their general-purpose rectifier series. Mechanical compatibility is maintained for PCB assembly.

Q: Why do substitute parts show lower reverse recovery time (trr)?

A: Substitute parts incorporate faster recovery diode technology (≤500 ns) compared to the S1D standard recovery design (1800 ns). This represents a performance improvement with no negative impact on circuit function. Faster recovery reduces switching losses and electromagnetic interference in rectifier applications.

Q: Is the higher reverse leakage current (5 µA) in substitutes a concern?

A: No. The increase from 1 µA to 5 µA reverse leakage at 200 V is negligible for general-purpose rectifier applications. This represents a 4 µA difference at rated voltage, which does not affect circuit performance in standard power supply and signal rectification designs.

Q: Which substitute offers the best availability?

A: ES1D-E3/61T (Vishay) has the highest inventory at 2,328,659 pieces. ES1D-13-F (Diodes Incorporated) has 550,400 pieces. Both are Active products with established supply chains.

Q: Can I use EGF1D-E3/5CA or EGF1D-E3/67A if my PCB footprint is designed for SMA package?

A: EGF1D-E3/5CA and EGF1D-E3/67A use DO-214BA (GF1) package, which is mechanically compatible with DO-214AC (SMA) footprints. Pin pitch and surface mount characteristics are identical. Verification of PCB footprint compatibility with your specific design is recommended.

Q: What is the advantage of ES1D-13-F over other ES1D variants?

A: ES1D-13-F offers the lowest forward voltage drop (0.92 V @ 1 A) and fastest reverse recovery time (25 ns), resulting in improved efficiency and reduced power dissipation. It is manufactured by Diodes Incorporated and maintains 200 V, 1 A ratings with DO-214AC (SMA) packaging.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the S1D environmental and regulatory requirements.

Q: Can I mix different substitute part manufacturers in the same production batch?

A: Yes. All substitute parts meet identical electrical specifications (200 V, 1 A) and package requirements (DO-214AC SMA or compatible DO-214BA GF1). Mixing manufacturers is functionally acceptable for general-purpose rectifier applications.

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