STPS5L40RL Equivalent & Substitute Parts

Part Overview

The STPS5L40RL is an active-status Schottky rectifier diode manufactured by STMicroelectronics, rated for 40 V DC reverse voltage and 5 A average rectified current in a through-hole DO-201AD axial package. This component is designed for fast recovery applications with switching speeds ≤500 ns and forward voltage of 500 mV at 5 A. The part is RoHS3 compliant and REACH unaffected, with unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, manufacturer discontinuation, or specific application requirements within the defined electrical and mechanical parameter ranges.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	40	V
Current - Average Rectified (Io)	5	A
Voltage - Forward (Vf) (Max) @ If	500 mV @ 5 A	mV
Speed	Fast Recovery ≤500 ns, >200 mA (Io)	ns
Current - Reverse Leakage @ Vr	200	µA @ 40 V
Mounting Type	Through Hole	—
Package / Case	DO-201AD, Axial	—
Operating Temperature - Junction (Max)	150	°C
Technology	Schottky	—
RoHS Status	RoHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the STPS5L40RL are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalent: Parts that match all critical electrical specifications (40 V reverse voltage, 5 A average rectified current, fast recovery ≤500 ns, DO-201AD through-hole package) with identical or superior performance characteristics.

Similar Substitute: Parts that share the same reverse voltage rating (40 V) and fast recovery technology but differ in current rating, forward voltage, reverse leakage current, or package type. These parts are suitable for applications where the full 5 A current capacity is not required or where package form factor permits substitution.

Substitution eligibility is determined by:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 40 V
Current - Average Rectified (Io): Must equal or exceed application requirement
Technology: Schottky fast recovery type
Mounting Type: Through hole or surface mount compatibility with circuit design
Package / Case: DO-201AD axial or equivalent mechanical footprint
Operating Temperature - Junction: Must support application thermal requirements

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	Reverse Leakage @ Vr [µA]	Package / Case	Mounting Type	Tj (Max) [°C]	RoHS Status
STPS5L40RL	STMicroelectronics	40	5	500 @ 5 A	200 @ 40 V	DO-201AD, Axial	Through Hole	150	RoHS3 Compliant
STPS5L40	STMicroelectronics	40	5	500 @ 5 A	200 @ 40 V	DO-201AD, Axial	Through Hole	150	RoHS3 Compliant
SB540E-G	Comchip Technology	40	5	550 @ 5 A	500 @ 40 V	DO-201AD, Axial	Through Hole	125	RoHS3 Compliant
SB540-T	Diodes Incorporated	40	5	550 @ 5 A	500 @ 40 V	DO-201AD, Axial	Through Hole	125	RoHS3 Compliant
1N5822	Microchip Technology	40	3	500 @ 3 A	100 @ 40 V	B, Axial	Through Hole	125	RoHS non-compliant
BAT165E6327HTSA1	Infineon Technologies	40	0.75	740 @ 750 mA	50 @ 40 V	SC-76, SOD-323	Surface Mount	150	RoHS3 Compliant

Engineering Selection Recommendations

Parametric Equivalent - STPS5L40

The STPS5L40 is a direct parametric equivalent to the STPS5L40RL, manufactured by STMicroelectronics. Both parts share identical electrical specifications (40 V, 5 A, 500 mV forward voltage, 200 µA reverse leakage) and package configuration (DO-201AD through-hole axial). The STPS5L40 maintains RoHS3 compliance and 150°C maximum junction temperature rating. This part is suitable for direct substitution in all applications where the STPS5L40RL is specified.

Similar Substitutes - SB540E-G and SB540-T

The SB540E-G (Comchip Technology) and SB540-T (Diodes Incorporated) are functionally equivalent alternatives with identical 40 V reverse voltage and 5 A current ratings in DO-201AD through-hole packages. Both maintain RoHS3 compliance. Differences include forward voltage of 550 mV (versus 500 mV) and reverse leakage of 500 µA (versus 200 µA), with maximum junction temperature of 125°C. These parts are suitable for applications where the slightly higher forward voltage and leakage characteristics are acceptable within circuit design margins.

Similar Substitute - 1N5822

The 1N5822 (Microchip Technology) is a 40 V Schottky diode with reduced current rating of 3 A and through-hole axial package. This part is suitable only for applications requiring ≤3 A average rectified current. The 1N5822 is RoHS non-compliant and operates at maximum junction temperature of 125°C. Forward voltage is 500 mV at 3 A with reverse leakage of 100 µA.

Similar Substitute - BAT165E6327HTSA1

The BAT165E6327HTSA1 (Infineon Technologies) is a surface-mount Schottky diode rated for 40 V and 750 mA in SOD-323 package. This part is suitable only for applications requiring ≤750 mA current and where surface-mount technology is compatible with circuit design. The BAT165E6327HTSA1 maintains RoHS3 compliance and 150°C maximum junction temperature. Forward voltage is 740 mV at 750 mA with reverse leakage of 50 µA.

Frequently Asked Questions (FAQ)

Q: Can the STPS5L40 be used as a direct replacement for the STPS5L40RL?

A: Yes. The STPS5L40 is a parametric equivalent with identical electrical specifications and package configuration. Both parts are manufactured by STMicroelectronics with matching 40 V reverse voltage, 5 A current rating, 500 mV forward voltage, and DO-201AD through-hole axial package.

Q: What is the primary difference between the STPS5L40RL and the SB540E-G?

A: The primary differences are forward voltage (500 mV versus 550 mV at 5 A) and reverse leakage current (200 µA versus 500 µA at 40 V). The SB540E-G is manufactured by Comchip Technology while the STPS5L40RL is manufactured by STMicroelectronics. Both share identical 40 V reverse voltage, 5 A current rating, and DO-201AD through-hole package.

Q: Is the 1N5822 suitable for all applications using the STPS5L40RL?

A: No. The 1N5822 has a reduced current rating of 3 A compared to the STPS5L40RL's 5 A rating. The 1N5822 is suitable only for applications requiring ≤3 A average rectified current. Additionally, the 1N5822 is RoHS non-compliant, which may restrict use in regulated applications.

Q: Can the BAT165E6327HTSA1 replace the STPS5L40RL in a through-hole circuit design?

A: No. The BAT165E6327HTSA1 is a surface-mount component in SOD-323 package, while the STPS5L40RL is a through-hole axial component in DO-201AD package. Additionally, the BAT165E6327HTSA1 is rated for only 750 mA, insufficient for applications requiring the full 5 A capacity of the STPS5L40RL.

Q: What are the compliance differences between substitute parts?

A: The STPS5L40RL, STPS5L40, SB540E-G, SB540-T, and BAT165E6327HTSA1 are all RoHS3 compliant. The 1N5822 is RoHS non-compliant. All parts are REACH unaffected and classified as EAR99 for export control purposes.

Q: Which substitute part has the lowest reverse leakage current?

A: The BAT165E6327HTSA1 has the lowest reverse leakage current at 50 µA @ 40 V. However, this part is limited to 750 mA current and surface-mount package configuration. For through-hole applications requiring 5 A capacity, the STPS5L40RL and STPS5L40 both specify 200 µA reverse leakage.

Q: Are all substitute parts rated for the same maximum junction temperature as the STPS5L40RL?

A: No. The STPS5L40RL and STPS5L40 are rated for 150°C maximum junction temperature. The SB540E-G, SB540-T, and 1N5822 are rated for 125°C maximum junction temperature. The BAT165E6327HTSA1 is rated for 150°C maximum junction temperature.

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