Equivalent & Substitute Parts for S1DA-E3/5AT

Part Overview

The S1DA-E3/5AT is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 V DC reverse voltage and 1 A average rectified current in a DO-214AC (SMA) surface mount package. This part is classified as obsolete, indicating it is no longer in active production. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing manufacturing requirements for applications utilizing this diode specification.

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
Speed	Standard Recovery >500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	1	µs
Current - Reverse Leakage @ Vr	3	µA @ 200 V
Capacitance @ Vr, F	8	pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the S1DA-E3/5AT is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 200 V
Current - Average Rectified (Io): 1 A
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
Operating Temperature Range: -55°C to 150°C (minimum)
RoHS Status: ROHS3 Compliant

Allowable Variation Parameters:

Voltage - Forward (Vf) (Max) @ If: 1.0 to 1.1 V @ 1 A
Reverse Recovery Time (trr): 0.05 to 1.8 µs
Current - Reverse Leakage @ Vr: 1 to 10 µA @ 200 V
Capacitance @ Vr, F: 6 to 15 pF @ 4V, 1MHz
Speed Classification: Standard or Fast Recovery

Substitute parts are grouped into two categories: Vishay internal variants (same manufacturer, different packaging or internal revision codes) and cross-manufacturer equivalents (alternative suppliers meeting identical electrical and mechanical specifications).

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs]	Ir @ Vr [µA]	Package	Product Status	Packaging Type
S1DA-E3/5AT	Vishay	200	1	1.1 @ 1 A	1	3 @ 200 V	DO-214AC, SMA	Obsolete	—
S1D-E3/5AT	Vishay	200	1	1.1 @ 1 A	1.8	1 @ 200 V	DO-214AC, SMA	Active	Cut Tape (CT) & Digi-Reel®
CS1D-E3/I	Vishay	200	1	1.1 @ 1 A	1.5	5 @ 200 V	DO-214AC, SMA	Obsolete	Cut Tape (CT) & Digi-Reel®
S1D-E3/61T	Vishay	200	1	1.1 @ 1 A	1.8	1 @ 200 V	DO-214AC, SMA	Active	Tape & Reel (TR)
S1D-M3/5AT	Vishay	200	1	1.1 @ 1 A	1.8	1 @ 200 V	DO-214AC, SMA	Active	Tape & Reel (TR)
S1D-M3/61T	Vishay	200	1	1.1 @ 1 A	1.8	1 @ 200 V	DO-214AC, SMA	Active	Tape & Reel (TR)
S1DHE3_A/H	Vishay	200	1	1.1 @ 1 A	1.8	1 @ 200 V	DO-214AC, SMA	Active	Tape & Reel (TR)
S1DHE3_A/I	Vishay	200	1	1.1 @ 1 A	1.8	1 @ 200 V	DO-214AC, SMA	Active	Tape & Reel (TR)
CGRA4003-G	Comchip Technology	200	1	1.1 @ 1 A	≤ 0.5	5 @ 200 V	DO-214AC, SMA	Active	Tape & Reel (TR)
EGF1D	onsemi	200	1	1.0 @ 1 A	0.05	10 @ 200 V	DO-214AC, SMA	Not For New Designs	Cut Tape (CT) & Digi-Reel®
ES1D	EVVO Semi	200	1	1.0 @ 1 A	0.035	5 @ 200 V	DO-214AC, SMA	Active	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

Primary Recommendation: S1D-E3/5AT (Vishay)

The S1D-E3/5AT is the direct active equivalent to the obsolete S1DA-E3/5AT. Both parts share identical electrical specifications (200 V, 1 A, 1.1 V forward voltage) and package configuration (DO-214AC, SMA). The S1D-E3/5AT maintains active product status, ensuring long-term availability and supply chain continuity. This part is available in Cut Tape and Digi-Reel packaging formats.

Secondary Recommendations: S1D-E3/61T, S1D-M3/5AT, S1D-M3/61T (Vishay)

These variants are functionally equivalent to S1D-E3/5AT with identical electrical ratings. Differences exist only in packaging format (Tape & Reel) and internal revision codes. All three maintain active product status. Selection among these variants depends on procurement packaging requirements and inventory availability.

Automotive-Grade Alternatives: S1DHE3_A/H, S1DHE3_A/I (Vishay)

These parts meet AEC-Q101 automotive qualification and are suitable for applications requiring automotive-grade components. Electrical specifications are identical to the primary recommendation. Both parts are active and available in Tape & Reel packaging.

Cross-Manufacturer Alternatives: CGRA4003-G (Comchip Technology), ES1D (EVVO Semi)

These parts meet all mandatory electrical and mechanical parameters. CGRA4003-G features fast recovery characteristics (≤ 0.5 µs) compared to the standard recovery of the original part. ES1D offers superior fast recovery performance (35 ns) with lower forward voltage (1.0 V). Both are active products. Selection of cross-manufacturer alternatives is appropriate when Vishay supply is constrained.

Not Recommended for New Designs: EGF1D (onsemi)

The EGF1D meets all electrical and mechanical substitution criteria but carries a "Not For New Designs" status. This part is suitable only for legacy system maintenance or repair applications where existing designs already incorporate this component.

Frequently Asked Questions (FAQ)

Q: Can S1D-E3/5AT directly replace S1DA-E3/5AT in existing designs?

A: Yes. The S1D-E3/5AT is the active equivalent of the obsolete S1DA-E3/5AT. Both parts share identical electrical ratings (200 V, 1 A, 1.1 V forward voltage) and the same DO-214AC (SMA) package. No circuit modifications are required.

Q: What is the difference between S1D-E3/5AT and S1D-E3/61T?

A: Both parts are electrically identical with 200 V, 1 A ratings and 1.1 V forward voltage. The primary difference is packaging format: S1D-E3/5AT is supplied in Cut Tape and Digi-Reel format, while S1D-E3/61T is supplied in Tape & Reel format. Selection depends on procurement and assembly equipment compatibility.

Q: Are the Vishay S1DHE3_A/H and S1DHE3_A/I variants suitable for automotive applications?

A: Yes. Both S1DHE3_A/H and S1DHE3_A/I carry AEC-Q101 automotive qualification and are rated for automotive-grade applications. They maintain identical electrical specifications to the standard S1D variants.

Q: How does the CGRA4003-G (Comchip) differ from the Vishay S1D-E3/5AT?

A: The CGRA4003-G meets all mandatory electrical and mechanical requirements (200 V, 1 A, DO-214AC package). The primary difference is recovery speed: CGRA4003-G features fast recovery (≤ 0.5 µs) compared to the standard recovery (1.8 µs) of S1D-E3/5AT. This faster recovery may reduce switching losses in high-frequency applications but is not required for standard rectification circuits.

Q: Is the onsemi EGF1D suitable for new product designs?

A: No. The EGF1D carries a "Not For New Designs" status and should be used only for maintenance or repair of existing systems. For new designs, select from active-status alternatives such as S1D-E3/5AT, S1D-E3/61T, or ES1D.

Q: What are the key differences between standard recovery and fast recovery diodes in this product category?

A: Standard recovery diodes (such as S1D-E3/5AT with 1.8 µs trr) are suitable for general-purpose rectification at line frequencies and moderate switching speeds. Fast recovery diodes (such as CGRA4003-G with ≤ 0.5 µs trr or ES1D with 35 ns trr) reduce reverse recovery losses and are preferred in high-frequency switching applications. For applications operating at standard 50/60 Hz line frequencies, either type is acceptable.

Q: Can I substitute ES1D (EVVO Semi) for S1D-E3/5AT?

A: Yes. The ES1D meets all mandatory electrical and mechanical parameters (200 V, 1 A, DO-214AC package, -55°C to 150°C operating range). The ES1D offers superior fast recovery performance (35 ns) and lower forward voltage (1.0 V) compared to S1D-E3/5AT. This substitution is appropriate when EVVO Semi supply is available and the improved performance characteristics are acceptable for the application.

Q: What does "Moisture Sensitivity Level (MSL) 1 (Unlimited)" mean?

A: MSL 1 indicates the component has unlimited shelf life and does not require special moisture-control storage or handling procedures. All substitute parts listed carry MSL 1 classification, ensuring consistent handling requirements across alternatives.

Q: Are all listed substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 Compliant status, ensuring compliance with RoHS Directive 2011/65/EU and its amendments. This applies to both Vishay variants and cross-manufacturer alternatives.

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