S1M-LTP Equivalent & Substitute Parts

Part Overview

The S1M-LTP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 1000 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AA (SMB) package. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	1000	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 1	V @ A
Reverse Recovery Time (trr)	2	µs
Current - Reverse Leakage @ Vr	5	µA @ 1000 V
Capacitance @ Vr, F	12	pF @ 4V, 1MHz
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the S1M-LTP with equivalent parts is determined by matching the following critical electrical and mechanical parameters:

Voltage Rating: DC reverse voltage of 1000 V maximum
Current Rating: Average rectified current of 1 A
Forward Voltage: Maximum 1.1 V at 1 A forward current
Package Type: DO-214AA (SMB) surface mount configuration
Recovery Characteristics: Standard recovery speed with reverse recovery time of 2 µs
Temperature Range: Operating junction temperature from -55°C to 150°C
Compliance: RoHS3 compliant, MSL Level 1, REACH unaffected status

Parts meeting all these parameters are classified as parametric equivalents and direct substitutes. The S1M_R1_00001 manufactured by Panjit International Inc. satisfies all substitution criteria.

Parameter Comparison

Parameter	S1M-LTP (Micro Commercial Co)	S1M_R1_00001 (Panjit International Inc.)	Match Status
Voltage - DC Reverse (Vr) (Max)	1000 V	1000 V	Equivalent
Current - Average Rectified (Io)	1 A	1 A	Equivalent
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	1.1 V @ 1 A	Equivalent
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Equivalent
Current - Reverse Leakage @ Vr	5 µA @ 1000 V	1 µA @ 1000 V	Compatible (Lower leakage)
Capacitance @ Vr, F	12 pF @ 4V, 1MHz	12 pF @ 4V, 1MHz	Equivalent
Package / Case	DO-214AA, SMB	DO-214AA, SMB	Equivalent
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Equivalent

Engineering Selection Recommendations

The S1M_R1_00001 from Panjit International Inc. is a direct parametric equivalent to the S1M-LTP. Both components share identical electrical ratings, package configuration, and compliance certifications. The S1M_R1_00001 exhibits lower reverse leakage current (1 µA versus 5 µA at 1000 V), which represents improved performance within the same functional class. Both parts maintain Active product status and full RoHS3 compliance. Selection between these components may be based on inventory availability, supply chain logistics, or procurement preferences, as electrical and mechanical compatibility is fully established.

Frequently Asked Questions (FAQ)

Q: Can the S1M_R1_00001 be used as a direct replacement for the S1M-LTP in existing designs?

A: Yes. Both components are rated for 1000 V DC reverse voltage, 1 A average rectified current, and share identical DO-214AA (SMB) package specifications. Forward voltage, operating temperature range, and recovery characteristics are equivalent.

Q: What is the significance of the lower reverse leakage current in the S1M_R1_00001?

A: The S1M_R1_00001 exhibits 1 µA reverse leakage at 1000 V compared to 5 µA for the S1M-LTP. This represents improved leakage performance and may provide benefits in low-current or high-impedance circuit applications, though both values remain within standard rectifier diode specifications.

Q: Are both parts suitable for the same PCB assembly process?

A: Yes. Both components use surface mount DO-214AA (SMB) packaging with identical mechanical dimensions and land patterns. No PCB layout modifications are required for substitution.

Q: Do both parts meet the same compliance and regulatory requirements?

A: Yes. Both the S1M-LTP and S1M_R1_00001 are RoHS3 compliant, REACH unaffected, and classified as MSL Level 1 (Unlimited moisture sensitivity). ECCN and HTSUS classifications are identical.

Q: What is the base product number relationship between these parts?

A: Both components share the base product number S1M, indicating they belong to the same product family and functional class within their respective manufacturers' portfolios.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message