RS1D-M3/5AT Equivalent & Substitute Parts

Part Overview

The RS1D-M3/5AT is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount diode operates at 200 V DC reverse voltage with 1 A average rectified current in a DO-214AC (SMA) package. The part is currently active and widely used in power supply and rectification applications.

Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required, or when design specifications allow for equivalent electrical performance from different manufacturers. This reference provides parametrically equivalent and functionally compatible alternatives based on electrical characteristics and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A	V
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 200 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	-
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 RS1D-M3/5AT is determined by the following critical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 200 V minimum
Current - Average Rectified (Io): 1 A minimum
Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case: DO-214AC (SMA) surface mount

Packaging Compatibility:

All substitute parts must use DO-214AC or SMA package designation
Mounting type must be surface mount
Tape & Reel (TR) and Cut Tape (CT) packaging are interchangeable for component selection purposes

Compliance Requirements:

RoHS3 compliance required for all substitutes
Moisture Sensitivity Level (MSL) 1 acceptable

Substitute parts are grouped into three categories based on their relationship to the main part:

Parametric Equivalents: Parts with identical electrical specifications and packaging, differing only in packaging format (TR vs. CT).

Upgrade Parts: Parts with superior or equivalent electrical performance, potentially from different manufacturers, maintaining the same voltage and current ratings.

Manufacturer Recommended Parts: Parts recommended by original manufacturers as functional alternatives, with electrical characteristics that meet or exceed the primary part specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	Package	Packaging Format	Product Status
RS1D-M3/5AT	Vishay	200	1	1.3 @ 1A	150	5 @ 200V	DO-214AC (SMA)	Tape & Reel (TR)	Active
RS1D-E3/61T	Vishay	200	1	1.3 @ 1A	150	5 @ 200V	DO-214AC (SMA)	Cut Tape (CT)	Active
RS1DHE3_A/H	Vishay	200	1	1.3 @ 1A	150	5 @ 200V	DO-214AC (SMA)	Tape & Reel (TR)	Active
RS1DHE3_A/I	Vishay	200	1	1.3 @ 1A	150	5 @ 200V	DO-214AC (SMA)	Tape & Reel (TR)	Active
RGF1D	onsemi	200	1	1.3 @ 1A	150	5 @ 200V	DO-214AC (SMA)	Cut Tape (CT) & Digi-Reel®	Not For New Designs
RS1D-13-F	Diodes Incorporated	200	1	1.3 @ 1A	150	5 @ 200V	DO-214AC (SMA)	Cut Tape (CT) & Digi-Reel®	Active
EGF1D	onsemi	200	1	1.0 @ 1A	50	10 @ 200V	DO-214AC (SMA)	Cut Tape (CT) & Digi-Reel®	Not For New Designs
ES1D	EVVO Semi	200	1	1.0 @ 1A	35	5 @ 200V	DO-214AC (SMA)	Cut Tape (CT) & Digi-Reel®	Active
ES1D-13-F	Diodes Incorporated	200	1	0.92 @ 1A	25	5 @ 200V	DO-214AC (SMA)	Cut Tape (CT) & Digi-Reel®	Active
GF1D	Fairchild Semiconductor	200	1	1.0 @ 1A	2000	5 @ 200V	DO-214AC (SMA)	-	Active
STTH102A	STMicroelectronics	200	1	0.97 @ 1A	20	1 @ 200V	DO-214AC (SMA)	Cut Tape (CT) & Digi-Reel®	Active

Engineering Selection Recommendations

Direct Parametric Equivalents (Preferred for Direct Substitution):

RS1D-E3/61T, RS1DHE3_A/H, and RS1DHE3_A/I are direct parametric equivalents to the RS1D-M3/5AT. These parts share identical electrical specifications and differ only in packaging format or automotive qualification. RS1DHE3_A/H and RS1DHE3_A/I carry AEC-Q101 automotive qualification, making them suitable for automotive applications where the primary part may not be qualified.

Active Status Alternatives:

RS1D-13-F (Diodes Incorporated), ES1D (EVVO Semi), ES1D-13-F (Diodes Incorporated), GF1D (Fairchild Semiconductor), and STTH102A (STMicroelectronics) are all active products with 200 V / 1 A ratings in DO-214AC (SMA) packages. These parts maintain voltage and current compatibility with the primary part.

ES1D-13-F and STTH102A offer superior reverse recovery time performance (25 ns and 20 ns respectively) compared to the primary part (150 ns), resulting in lower forward voltage drop and reduced switching losses in high-frequency applications.

Parts Not Recommended for New Designs:

RGF1D (onsemi) and EGF1D (onsemi) carry "Not For New Designs" status and should be avoided for new circuit development. These parts are suitable only for legacy system maintenance or replacement applications where the original part specification is mandatory.

Compliance Verification:

All recommended substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can RS1D-E3/61T replace RS1D-M3/5AT directly?

A: Yes. RS1D-E3/61T is a parametric equivalent with identical electrical specifications (200 V, 1 A, 150 ns reverse recovery time, 1.3 V forward voltage). The only difference is packaging format: RS1D-E3/61T uses Cut Tape (CT) while RS1D-M3/5AT uses Tape & Reel (TR). Both are surface mount DO-214AC packages suitable for automated assembly.

Q: What is the difference between RS1DHE3_A/H and RS1DHE3_A/I?

A: Both parts are parametrically identical to the primary part with identical electrical specifications. The difference lies in their automotive qualification grades. RS1DHE3_A/H and RS1DHE3_A/I both carry AEC-Q101 automotive qualification, making them suitable for automotive applications. The suffix designations indicate different qualification batches or manufacturing lots.

Q: Why do some substitute parts have lower forward voltage (Vf)?

A: Forward voltage variation is a normal characteristic difference between manufacturers and product lines. ES1D-13-F (0.92 V) and STTH102A (0.97 V) have lower forward voltage than the primary part (1.3 V). Lower forward voltage reduces power dissipation and heat generation in rectification circuits, which is beneficial in high-current or high-frequency applications.

Q: Can I use GF1D as a substitute?

A: GF1D meets the voltage (200 V) and current (1 A) requirements and uses the same DO-214AC (SMA) package. However, GF1D has significantly slower reverse recovery time (2000 ns) compared to the primary part (150 ns). This makes GF1D unsuitable for applications requiring fast switching or low reverse recovery characteristics. GF1D is classified as a standard recovery diode, not a fast recovery diode.

Q: What does "Not For New Designs" mean for RGF1D and EGF1D?

A: "Not For New Designs" indicates that these parts are in mature or end-of-life status. Manufacturers recommend against using these parts in new circuit designs. These parts are available for legacy system support and replacement only. For new designs, select from parts with "Active" product status.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance certification, ensuring compatibility with environmental and regulatory requirements for electronic components.

Q: Can I mix packaging formats (Tape & Reel vs. Cut Tape) in production?

A: Tape & Reel (TR) and Cut Tape (CT) packaging formats are interchangeable from an electrical and mechanical standpoint. The choice between them depends on assembly equipment compatibility and inventory management practices. Both formats use identical DO-214AC (SMA) component packages and are suitable for automated pick-and-place assembly.

Q: What is the significance of reverse recovery time (trr) differences?

A: Reverse recovery time affects switching speed and efficiency in rectification circuits. The primary part has 150 ns reverse recovery time. Faster alternatives like ES1D-13-F (25 ns) and STTH102A (20 ns) reduce switching losses and heat generation, beneficial in high-frequency power supplies. Slower alternatives like GF1D (2000 ns) are unsuitable for fast-switching applications.

Q: Is automotive qualification (AEC-Q101) required for my application?

A: AEC-Q101 qualification is required only for automotive applications subject to automotive industry standards. RS1DHE3_A/H and RS1DHE3_A/I carry this qualification. For non-automotive applications, AEC-Q101 qualification is not necessary, and standard industrial-grade parts are acceptable.

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