CMR1-04M TR13 Equivalent & Substitute Parts

Part Overview

The CMR1-04M TR13 is a general-purpose rectifier diode rated for 400 V DC reverse voltage and 1 A average rectified current in a surface mount SMA package. This component is classified as Active product status and is manufactured by Central Semiconductor Corp using standard recovery technology. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and thermal characteristics align with the original specification, enabling direct replacement in circuit applications without design modification.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 1 A	V
Speed	Standard Recovery >500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	5	µA @ 400 V
Capacitance @ Vr, F	8	pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-65 to 150	°C

Substitute Part Grouping Explanation

Substitute parts for the CMR1-04M TR13 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 400 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.1 V @ 1 A
Speed: Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 5 µA @ 400 V
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
Operating Temperature - Junction: -65°C to 150°C

All identified substitute parts maintain identical or equivalent performance across these parameters, ensuring functional interchangeability in the same circuit application. Variations in secondary parameters such as capacitance or reverse recovery time do not affect substitution eligibility when primary electrical ratings and thermal operating range remain within specification.

Parameter Comparison

Parameter	CMR1-04M TR13	CMR1-04M TR13 PBFREE	S1G-13-F
Manufacturer	Central Semiconductor Corp	Central Semiconductor Corp	Diodes Incorporated
Voltage - DC Reverse (Vr) (Max)	400 V	400 V	400 V
Current - Average Rectified (Io)	1 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	1.1 V @ 1 A	1.1 V @ 1 A
Speed	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)	Standard Recovery >500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	5 µA @ 400 V	5 µA @ 400 V	5 µA @ 400 V
Capacitance @ Vr, F	8 pF @ 4V, 1MHz	8 pF @ 4V, 1MHz	10 pF @ 4V, 1MHz
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
Product Status	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

CMR1-04M TR13 PBFREE (Central Semiconductor Corp)

This substitute is a direct equivalent from the same manufacturer with identical electrical specifications. The PBFREE designation indicates lead-free material composition. This part carries ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), providing enhanced environmental and regulatory alignment. Selection of this part is appropriate when RoHS compliance is required or when sourcing from the same manufacturer is preferred for supply chain consistency.

S1G-13-F (Diodes Incorporated)

This substitute is manufactured by Diodes Incorporated and maintains all critical electrical parameters. The part is ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). Capacitance is specified at 10 pF versus 8 pF for the original part; this 2 pF difference does not affect substitution eligibility. Selection of this part is appropriate when sourcing from Diodes Incorporated is preferred or when alternative supplier qualification is required for supply chain resilience.

Frequently Asked Questions (FAQ)

Q: Can CMR1-04M TR13 PBFREE be used as a direct replacement for CMR1-04M TR13?

A: Yes. Both parts are manufactured by Central Semiconductor Corp and share identical electrical specifications including voltage rating, current rating, forward voltage, recovery speed, reverse leakage current, and operating temperature range. The PBFREE designation indicates lead-free composition and ROHS3 compliance. No circuit modification is required.

Q: What is the difference between CMR1-04M TR13 and S1G-13-F?

A: Both parts meet the same electrical performance requirements for 400 V, 1 A rectification. The primary differences are manufacturer (Central Semiconductor Corp versus Diodes Incorporated) and capacitance specification (8 pF versus 10 pF at 4V, 1MHz). The 2 pF capacitance difference does not affect functional substitution. Both parts are ROHS3 compliant and carry identical thermal ratings.

Q: Are all substitute parts available in the same package?

A: Yes. All parts listed use the DO-214AC, SMA surface mount package. Mechanical footprint and PCB layout compatibility are identical across all substitutes.

Q: What is the operating temperature range for these diodes?

A: All parts operate across a junction temperature range of -65°C to 150°C, enabling use in industrial and commercial temperature environments.

Q: Do these parts require different handling or storage procedures?

A: CMR1-04M TR13 PBFREE and S1G-13-F both carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control requirements during storage or handling. Standard ESD precautions for surface mount components apply.

Q: Can I mix different substitute parts in the same production run?

A: Yes. All substitute parts meet identical electrical specifications and package requirements. Mixed sourcing is permissible when supply constraints require multiple suppliers.

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