FR1M-13 Equivalent & Substitute Parts

Part Overview

The FR1M-13 is a fast recovery rectifier diode manufactured by Diodes Incorporated, rated for 1000 V DC reverse voltage with 1 A average rectified current. This surface mount component in DO-214AA (SMB) package is designed for general-purpose rectification applications requiring fast switching characteristics with 500 ns reverse recovery time.

The FR1M-13 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this component.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	1000	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.3	V @ 1 A
Reverse Recovery Time (trr)	500	ns
Current - Reverse Leakage @ Vr	5	µA @ 1000 V
Mounting Type	Surface Mount	-
Package / Case	DO-214AA, SMB	-
Operating Temperature - Junction	-65 to 175	°C

Substitute Part Grouping Explanation

Substitution of the FR1M-13 is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

Voltage - DC Reverse (Vr) (Max): 1000 V
Current - Average Rectified (Io): 1 A
Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 1 A
Reverse Recovery Time (trr): 500 ns
Current - Reverse Leakage @ Vr: 5 µA @ 1000 V
Speed Classification: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Mechanical Equivalence Criteria:

Mounting Type: Surface Mount
Package / Case: DO-214AA (SMB) or DO-214AC (SMA)

Two substitute parts meet these criteria:

RS1MB-13-F (Diodes Incorporated) – Direct electrical and mechanical equivalent with SMB package compatibility
CMR1F-10M TR13 PBFREE (Central Semiconductor Corp) – Electrical equivalent with SMA package variant

Parameter Comparison

Parameter	FR1M-13	RS1MB-13-F	CMR1F-10M TR13 PBFREE
Manufacturer	Diodes Incorporated	Diodes Incorporated	Central Semiconductor Corp
Product Status	Obsolete	Active	Active
Voltage - DC Reverse (Vr) (Max)	1000 V	1000 V	1000 V
Current - Average Rectified (Io)	1 A	1 A	1 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 1 A	1.3 V @ 1 A	1.3 V @ 1 A
Reverse Recovery Time (trr)	500 ns	500 ns	500 ns
Current - Reverse Leakage @ Vr	5 µA @ 1000 V	5 µA @ 1000 V	5 µA @ 1000 V
Capacitance @ Vr, F	-	15 pF @ 4V, 1MHz	15 pF @ 4V, 1MHz
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	DO-214AA, SMB	DO-214AA, SMB	DO-214AC, SMA
Operating Temperature - Junction	-65 to 175°C	-65 to 150°C	-65 to 150°C
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

RS1MB-13-F is the primary substitute for FR1M-13 applications. This part maintains identical electrical specifications and package form factor (SMB), ensuring direct board-level compatibility. RS1MB-13-F carries active product status with ROHS3 compliance, providing long-term supply chain stability and regulatory alignment for new designs or production transitions.

CMR1F-10M TR13 PBFREE serves as an alternative substitute when SMA package compatibility is acceptable. This Central Semiconductor part meets all electrical requirements but uses the DO-214AC (SMA) package, which is physically smaller than the SMB variant. CMR1F-10M TR13 PBFREE also carries active status and ROHS3 compliance.

Both substitute parts operate within the -65°C to 150°C junction temperature range, which is 25°C lower than the FR1M-13 maximum. Applications requiring operation above 150°C junction temperature cannot use these substitutes.

Frequently Asked Questions (FAQ)

Q: Can RS1MB-13-F directly replace FR1M-13 on existing PCBs?

A: Yes. RS1MB-13-F maintains identical electrical specifications and SMB package form factor, enabling direct board-level substitution without layout modifications.

Q: What is the primary difference between RS1MB-13-F and CMR1F-10M TR13 PBFREE?

A: Both parts meet identical electrical requirements. The primary difference is package form factor: RS1MB-13-F uses SMB (DO-214AA), while CMR1F-10M TR13 PBFREE uses SMA (DO-214AC). SMA is physically smaller. Package selection depends on PCB layout constraints and available footprint space.

Q: Are there temperature limitations when substituting FR1M-13?

A: Yes. The FR1M-13 operates to 175°C junction temperature, while both substitute parts operate to 150°C maximum. Applications requiring junction temperatures above 150°C cannot use RS1MB-13-F or CMR1F-10M TR13 PBFREE.

Q: What is the compliance status difference between FR1M-13 and its substitutes?

A: FR1M-13 is RoHS non-compliant. Both RS1MB-13-F and CMR1F-10M TR13 PBFREE are ROHS3 compliant. For applications subject to RoHS regulations, the substitute parts provide regulatory compliance.

Q: Do the substitute parts have the same reverse recovery time?

A: Yes. All three parts—FR1M-13, RS1MB-13-F, and CMR1F-10M TR13 PBFREE—specify 500 ns reverse recovery time, maintaining identical fast recovery switching characteristics.

Q: What packaging formats are available for RS1MB-13-F?

A: RS1MB-13-F is supplied in Cut Tape (CT) and Digi-Reel packaging formats. CMR1F-10M TR13 PBFREE is supplied in Tape & Reel (TR) format.

Q: Are moisture sensitivity levels equivalent across all three parts?

A: Yes. FR1M-13, RS1MB-13-F, and CMR1F-10M TR13 PBFREE all carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions.

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