SBR05U40CSP-7 Equivalent & Substitute Parts

Part Overview

The SBR05U40CSP-7 is a Super Barrier diode manufactured by Diodes Incorporated, rated for 40 V DC reverse voltage and 500 mA average rectified current. This component is classified as obsolete, necessitating identification of active equivalent parts for new designs and ongoing production requirements. The part is housed in a 2-XDFN surface mount package and complies with ROHS3 and REACH standards.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	40 V
Current - Average Rectified (Io)	500 mA
Voltage - Forward (Vf) (Max) @ If	460 mV @ 500 mA
Current - Reverse Leakage @ Vr	75 µA @ 40 V
Capacitance @ Vr, F	34 pF @ 4V, 1MHz
Mounting Type	Surface Mount
Package / Case	2-XDFN
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the SBR05U40CSP-7 is based on electrical and mechanical parameter equivalence within the rectifier diode category. The substitute part SDM05U40CSP-7 maintains identical specifications across the following critical parameters:

Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io): 500 mA
Voltage - Forward (Vf) (Max) @ If: 460 mV @ 500 mA
Current - Reverse Leakage @ Vr: 75 µA @ 40 V
Mounting Type: Surface Mount
Package / Case: 2-XDFN
Operating Temperature - Junction: -55°C ~ 150°C
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

The primary distinction between the main part and substitute is the technology classification (Super Barrier versus Schottky) and recovery speed characteristics, with the substitute offering fast recovery performance.

Parameter Comparison

Parameter	SBR05U40CSP-7 (Main Part)	SDM05U40CSP-7 (Substitute)
Manufacturer	Diodes Incorporated	Diodes Incorporated
Category	Diodes, Rectifiers	Diodes, Rectifiers
Product Status	Obsolete	Active
Technology	Super Barrier	Schottky
Voltage - DC Reverse (Vr) (Max)	40 V	40 V
Current - Average Rectified (Io)	500 mA	500 mA
Voltage - Forward (Vf) (Max) @ If	460 mV @ 500 mA	460 mV @ 500 mA
Speed	Standard Recovery >500ns, > 200mA (Io)	Fast Recovery =< 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	75 µA @ 40 V	75 µA @ 40 V
Capacitance @ Vr, F	34 pF @ 4V, 1MHz	35 pF @ 4V, 1MHz
Mounting Type	Surface Mount	Surface Mount
Package / Case	2-XDFN	2-XDFN
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The SDM05U40CSP-7 is the active equivalent substitute for the obsolete SBR05U40CSP-7. Both parts are manufactured by Diodes Incorporated and maintain identical electrical ratings and mechanical compatibility. The substitute part carries active product status, ensuring continued availability and supply chain support.

Both parts satisfy ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for electronic component applications. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints for either part.

The substitute part features fast recovery characteristics (≤500ns) compared to the standard recovery (>500ns) of the main part, with capacitance values within 1 pF of each other at specified test conditions. These characteristics support direct substitution in applications requiring 40 V, 500 mA rectification performance.

Frequently Asked Questions (FAQ)

Q: Can SDM05U40CSP-7 directly replace SBR05U40CSP-7 in existing designs?

A: Yes. Both parts share identical voltage ratings (40 V), current ratings (500 mA), forward voltage drop (460 mV @ 500 mA), reverse leakage (75 µA @ 40 V), package type (2-XDFN), and operating temperature range (-55°C ~ 150°C). The substitute is electrically and mechanically compatible.

Q: What is the difference between Super Barrier and Schottky technology in these parts?

A: The main part uses Super Barrier technology with standard recovery speed (>500ns), while the substitute uses Schottky technology with fast recovery speed (≤500ns). Both achieve identical forward voltage and reverse leakage specifications at rated conditions.

Q: Are there any compliance differences between the two parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL rating 1 (Unlimited). Regulatory and environmental compliance is equivalent.

Q: What is the significance of the 2-XDFN package designation?

A: The 2-XDFN package is a surface mount configuration used for both the main part and substitute. This ensures mechanical compatibility for PCB assembly without requiring design modifications.

Q: Why is the main part classified as obsolete?

A: The SBR05U40CSP-7 is listed as obsolete by the manufacturer. The SDM05U40CSP-7 is the active equivalent, ensuring continued component availability for production and design requirements.

Q: Is the 1 pF difference in capacitance between parts significant?

A: The capacitance values are 34 pF (main part) and 35 pF (substitute) at 4V, 1MHz. This 1 pF difference is within typical component tolerance and does not affect substitution suitability for standard rectification applications.

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