CS1M-E3/H Equivalent & Substitute Parts

Part Overview

The CS1M-E3/H is a general-purpose rectifier diode rated for 1000 V DC reverse voltage and 1 A average rectified current in a DO-214AC (SMA) surface mount package. Manufactured by Vishay General Semiconductor - Diodes Division, this component is classified as obsolete. Due to its obsolete product status and limited inventory availability (1108 pieces), identification of active equivalent parts is necessary to ensure continued design support and procurement reliability for new production runs and long-term supply chain planning.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	1000	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.12	V @ 1 A
Reverse Recovery Time (trr)	1.5	µs
Current - Reverse Leakage @ Vr	5	µA @ 1000 V
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C

Substitute Part Grouping Explanation

Substitution of the CS1M-E3/H is based on electrical and mechanical parameter equivalence within the general-purpose rectifier diode category. The substitute part S1M-E3/61T meets the following substitution criteria:

Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 1000 V
Current - Average Rectified (Io): 1 A
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C to 150°C
Technology: Standard
Speed Classification: Standard Recovery >500ns, > 200mA (Io)

Substitution Basis: The S1M-E3/61T maintains identical voltage and current ratings, package configuration, and thermal operating range. Both components are manufactured by the same supplier (Vishay General Semiconductor - Diodes Division) and employ standard rectifier technology. The substitute part is currently in active product status with significantly higher inventory availability (100100 pieces), ensuring long-term procurement viability.

Parameter Comparison

Parameter	CS1M-E3/H (Main Part)	S1M-E3/61T (Substitute)	Unit
Voltage - DC Reverse (Vr) (Max)	1000	1000	V
Current - Average Rectified (Io)	1	1	A
Voltage - Forward (Vf) (Max) @ If	1.12 @ 1 A	1.1 @ 1 A	V
Reverse Recovery Time (trr)	1.5	1.8	µs
Current - Reverse Leakage @ Vr	5 @ 1000 V	5 @ 1000 V	µA
Capacitance @ Vr, F	6 @ 4V, 1MHz	12 @ 4V, 1MHz	pF
Package / Case	DO-214AC, SMA	DO-214AC, SMA	—
Mounting Type	Surface Mount	Surface Mount	—
Operating Temperature - Junction	-55 to 150	-55 to 150	°C
Product Status	Obsolete	Active	—
Technology	Standard	Standard	—
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	—

Engineering Selection Recommendations

Primary Recommendation: S1M-E3/61T

The S1M-E3/61T is the direct substitute for the obsolete CS1M-E3/H. Selection of this part is based on the following engineering factors:

Product Status Alignment: The S1M-E3/61T maintains active product status, ensuring manufacturer support, continued availability, and compliance with current supply chain requirements.
Electrical Equivalence: Both parts share identical voltage ratings (1000 V DC reverse), current ratings (1 A average rectified), and thermal operating range (-55°C to 150°C). Forward voltage characteristics are within 0.02 V of each other at rated current.
Mechanical Compatibility: Both components use the DO-214AC (SMA) surface mount package, enabling direct PCB layout compatibility without redesign.
Compliance Status: The S1M-E3/61T is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for new product designs and manufacturing.
Packaging Options: The substitute part is available in Cut Tape (CT) and Digi-Reel® packaging formats, supporting both prototype and production volume requirements.

Frequently Asked Questions (FAQ)

Q: Can the S1M-E3/61T be used as a direct replacement for the CS1M-E3/H without circuit modifications?

A: Yes. Both parts share identical voltage ratings (1000 V), current ratings (1 A), package configuration (DO-214AC/SMA), and operating temperature range (-55°C to 150°C). No circuit modifications are required for substitution.

Q: What are the differences between the CS1M-E3/H and S1M-E3/61T?

A: The primary differences are: (1) Product status—CS1M-E3/H is obsolete while S1M-E3/61T is active; (2) Forward voltage—1.12 V versus 1.1 V at 1 A; (3) Reverse recovery time—1.5 µs versus 1.8 µs; (4) Capacitance—6 pF versus 12 pF at 4 V, 1 MHz; (5) Inventory availability—1108 pieces versus 100100 pieces. These differences do not affect functional compatibility in standard rectification applications.

Q: Are both parts manufactured by the same company?

A: Yes. Both the CS1M-E3/H and S1M-E3/61T are manufactured by Vishay General Semiconductor - Diodes Division.

Q: What packaging formats are available for the substitute part?

A: The S1M-E3/61T is available in Cut Tape (CT) and Digi-Reel® packaging formats, supporting both prototype development and high-volume production requirements.

Q: Does the S1M-E3/61T meet current regulatory compliance standards?

A: Yes. The S1M-E3/61T is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: What is the significance of the reverse recovery time difference between these parts?

A: The reverse recovery time (trr) difference of 0.3 µs (1.5 µs versus 1.8 µs) is within standard rectifier diode tolerances and does not affect performance in general-purpose rectification circuits. Both parts are classified as standard recovery devices.

Q: Can the CS1M-E3/H be restocked, or should designs transition to the S1M-E3/61T?

A: The CS1M-E3/H is classified as obsolete. New designs should transition to the S1M-E3/61T to ensure long-term supply chain reliability and manufacturer support.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message