Equivalent & Substitute Parts for RS1D

Part Overview

The RS1D is a general-purpose rectifier diode manufactured by onsemi, rated for 200 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (SMA) package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identification of equivalent and substitute parts is necessary for design continuity, legacy system support, and procurement of functionally compatible alternatives that meet the same electrical and mechanical specifications.

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
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 200 V
Mounting Type	Surface Mount	—
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 RS1D is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 200 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 1 A (or lower)
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr): 150 ns (or lower)
Current - Reverse Leakage @ Vr: 5 µA @ 200 V (or lower)

Mechanical Equivalence Criteria:

Mounting Type: Surface Mount
Package / Case: DO-214AC (SMA) or DO-214BA (GF1)
Operating Temperature - Junction: -55°C to 150°C minimum (or wider range)

Compliance Criteria:

RoHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

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

Direct Equivalents (Same Base Part Number, Different Packaging): Parts sharing the RS1D base product number with identical electrical specifications but alternative packaging formats.
Functional Equivalents (Different Manufacturer, Identical Electrical Specifications): Parts from alternative manufacturers meeting all electrical and mechanical requirements with active product status.
Enhanced Alternatives (Improved Performance Characteristics): Parts with superior electrical performance (lower forward voltage, faster recovery time, lower leakage current) while maintaining or exceeding all minimum requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	Package	Product Status	Temp Range [°C]
RS1D	onsemi	200	1	1.3 @ 1A	150	5 @ 200V	DO-214AC (SMA)	Not For New Designs	-55 to 150
RS1D-13-F	Diodes Incorporated	200	1	1.3 @ 1A	150	5 @ 200V	DO-214AC (SMA)	Active	-65 to 150
RS1D-E3/61T	Vishay General Semiconductor - Diodes Division	200	1	1.3 @ 1A	150	5 @ 200V	DO-214AC (SMA)	Active	-55 to 150
RGF1D-E3/67A	Vishay General Semiconductor - Diodes Division	200	1	1.3 @ 1A	150	5 @ 200V	DO-214BA (GF1)	Active	-65 to 175
MURA120T3G	onsemi	200	1	0.875 @ 1A	35	2 @ 200V	DO-214AC (SMA)	Active	-65 to 175
CMR1F-02M BK PBFREE	Central Semiconductor Corp	200	1	1.3 @ 1A	150	5 @ 200V	DO-214AC (SMA)	Active	-65 to 150
CMR1F-02M TR13 PBFREE	Central Semiconductor Corp	200	1	1.3 @ 1A	150	5 @ 200V	DO-214AC (SMA)	Active	-65 to 150
CMR1-02M BK PBFREE	Central Semiconductor Corp	200	1	1.1 @ 1A	Standard Recovery >500ns	5 @ 200V	DO-214AC (SMA)	Active	-65 to 150
CMR1-02M TR13 PBFREE	Central Semiconductor Corp	200	1	1.1 @ 1A	Standard Recovery >500ns	5 @ 200V	DO-214AC (SMA)	Active	-65 to 150
EGF1D-E3/5CA	Vishay General Semiconductor - Diodes Division	200	1	1.0 @ 1A	50	5 @ 200V	DO-214BA (GF1)	Active	-65 to 175
EGF1D-E3/67A	Vishay General Semiconductor - Diodes Division	200	1	1.0 @ 1A	50	5 @ 200V	DO-214BA (GF1)	Active	-65 to 175

Engineering Selection Recommendations

Direct Equivalents (Recommended for Pin-Compatible Replacement):

RS1D-13-F (Diodes Incorporated) and RS1D-E3/61T (Vishay General Semiconductor - Diodes Division) are direct electrical and mechanical equivalents to the RS1D. Both parts maintain identical electrical specifications and the same DO-214AC (SMA) package footprint. RS1D-13-F offers extended lower operating temperature range (-65°C vs. -55°C). RS1D-E3/61T maintains the original temperature range. Both are ROHS3 compliant with MSL 1 rating and active product status, making them suitable for immediate substitution in existing designs.

Functional Equivalents with Enhanced Performance:

MURA120T3G (onsemi) provides superior electrical performance with reduced forward voltage (0.875 V vs. 1.3 V), significantly faster reverse recovery time (35 ns vs. 150 ns), and lower reverse leakage current (2 µA vs. 5 µA). This part maintains the same voltage and current ratings and DO-214AC (SMA) package. Extended operating temperature range (-65°C to 175°C) and active product status support long-term availability.

EGF1D-E3/5CA and EGF1D-E3/67A (Vishay General Semiconductor - Diodes Division, SUPERECTIFIER® series) deliver enhanced performance with lower forward voltage (1.0 V vs. 1.3 V) and faster reverse recovery time (50 ns vs. 150 ns). These parts use the DO-214BA (GF1) package, which differs mechanically from the original DO-214AC (SMA) package. Extended operating temperature range (-65°C to 175°C) and active product status ensure long-term supply continuity.

Alternative Selections with Trade-offs:

CMR1F-02M BK PBFREE and CMR1F-02M TR13 PBFREE (Central Semiconductor Corp) provide exact electrical equivalence to the RS1D with identical forward voltage, recovery time, and leakage specifications. Extended operating temperature range (-65°C to 150°C) and active product status support design continuity. Packaging options include Bulk and Tape & Reel formats.

CMR1-02M BK PBFREE and CMR1-02M TR13 PBFREE (Central Semiconductor Corp) feature standard recovery characteristics (>500 ns) rather than fast recovery, with lower forward voltage (1.1 V vs. 1.3 V). These parts are suitable for applications where recovery speed is not a critical constraint. Extended operating temperature range and active product status support long-term availability.

Compliance and Certification:

All substitute parts listed are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original RS1D specifications. All parts carry EAR99 ECCN classification and REACH Unaffected status, maintaining regulatory equivalence for international distribution and use.

Frequently Asked Questions (FAQ)

Q: Can RS1D-13-F be used as a direct replacement for RS1D?

A: Yes. RS1D-13-F (Diodes Incorporated) is a direct electrical and mechanical equivalent. Both parts share identical voltage ratings (200 V), current ratings (1 A), forward voltage (1.3 V @ 1 A), reverse recovery time (150 ns), and reverse leakage current (5 µA @ 200 V). Both use the DO-214AC (SMA) package. RS1D-13-F has active product status and extended lower operating temperature range (-65°C vs. -55°C), making it suitable for immediate substitution without circuit modification.

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

A: DO-214AC (SMA) and DO-214BA (GF1) are distinct surface mount package outlines with different physical dimensions and PCB footprints. Parts using DO-214BA (GF1) package, such as RGF1D-E3/67A, EGF1D-E3/5CA, and EGF1D-E3/67A, require different PCB layout and assembly considerations than the original DO-214AC (SMA) package. Package selection depends on available PCB footprint and assembly equipment compatibility.

Q: Does MURA120T3G provide better performance than RS1D?

A: MURA120T3G (onsemi) maintains identical voltage and current ratings as RS1D but delivers improved electrical performance. Forward voltage is reduced from 1.3 V to 0.875 V, reverse recovery time is reduced from 150 ns to 35 ns, and reverse leakage current is reduced from 5 µA to 2 µA. These improvements result in lower power dissipation and faster switching characteristics. MURA120T3G uses the same DO-214AC (SMA) package and has active product status with extended operating temperature range (-65°C to 175°C).

Q: Are CMR1-02M parts suitable replacements for RS1D?

A: CMR1-02M BK PBFREE and CMR1-02M TR13 PBFREE (Central Semiconductor Corp) meet the voltage and current requirements of RS1D with lower forward voltage (1.1 V vs. 1.3 V). However, these parts feature standard recovery characteristics (>500 ns) rather than fast recovery (≤500 ns). Substitution is appropriate only for applications where fast recovery speed is not a functional requirement. Both parts are ROHS3 compliant with active product status.

Q: What is the significance of "Not For New Designs" status on RS1D?

A: "Not For New Designs" indicates that RS1D has reached end-of-life and is no longer recommended for new circuit designs. While existing inventory may remain available, long-term supply cannot be guaranteed. Substitution with active-status alternatives such as RS1D-13-F, MURA120T3G, or EGF1D-E3/67A ensures design continuity and long-term component availability for both new designs and legacy system support.

Q: Can parts with different operating temperature ranges be substituted?

A: Operating temperature range substitution depends on application requirements. RS1D operates from -55°C to 150°C. Substitute parts with extended ranges (such as -65°C to 175°C) are compatible with RS1D applications and provide additional margin for extreme temperature environments. Substitution with narrower temperature ranges is not recommended unless application requirements are confirmed to fall within the narrower range.

Q: What packaging formats are available for RS1D substitutes?

A: Substitute parts are available in multiple packaging formats: Tape & Reel (TR) for automated assembly, Cut Tape (CT) for manual or semi-automated assembly, and Bulk for custom packaging. RS1D-E3/61T and CMR1F-02M TR13 PBFREE are supplied in Tape & Reel format. RS1D-13-F is supplied in Cut Tape & Digi-Reel® format. CMR1-02M BK PBFREE is supplied in Bulk format. Selection depends on assembly process and volume requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed—RS1D-13-F, RS1D-E3/61T, RGF1D-E3/67A, MURA120T3G, CMR1F-02M variants, CMR1-02M variants, and EGF1D variants—are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original RS1D specifications. All parts carry EAR99 ECCN classification and REACH Unaffected status.

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