SR204-TP Equivalent & Substitute Parts

Part Overview

The SR204-TP is a Schottky rectifier diode manufactured by Micro Commercial Co, rated for 40 V DC reverse voltage and 2 A average rectified current in a through-hole DO-41 package. This component is classified as Active and complies with RoHS3 and REACH regulations. Equivalent and substitute parts are identified based on matching electrical specifications and mechanical compatibility within the Schottky diode rectifier category.

Key Parameters

Parameter	Value
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	40 V
Current - Average Rectified (Io)	2 A
Voltage - Forward (Vf) (Max) @ If	550 mV @ 2 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	1 mA @ 40 V
Mounting Type	Through Hole
Package / Case	DO-204AL, DO-41, Axial
Operating Temperature - Junction	-50°C ~ 125°C
RoHS Status	RoHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SR204-TP are qualified based on the following electrical and mechanical parameters:

Electrical Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 40 V
Current - Average Rectified (Io): 2 A
Technology: Schottky
Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Mechanical Compatibility Criteria:

Mounting Type: Through Hole
Package / Case: Axial configuration (DO-41, DO-204AC, DO-15)

Regulatory Compliance:

RoHS3 Compliant
REACH Unaffected

All substitute parts listed maintain electrical equivalence within the specified parameters. Package variations (DO-41 vs. DO-204AC/DO-15) are acceptable as they represent different physical forms of the same axial through-hole configuration and are mechanically interchangeable in standard PCB layouts.

Parameter Comparison

Parameter	SR204-TP (Micro Commercial Co)	SB240-E3/54 (Vishay)	SB240-E3/73 (Vishay)	SB240E-G (Comchip)
Voltage - DC Reverse (Vr) (Max)	40 V	40 V	40 V	40 V
Current - Average Rectified (Io)	2 A	2 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	550 mV @ 2 A	500 mV @ 2 A	500 mV @ 2 A	500 mV @ 2 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	1 mA @ 40 V	500 µA @ 40 V	500 µA @ 40 V	500 µA @ 40 V
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Package / Case	DO-204AL, DO-41, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial
Operating Temperature - Junction	-50°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed are Active products with RoHS3 compliance and REACH Unaffected status, matching the regulatory posture of the SR204-TP.

SB240-E3/54 and SB240-E3/73 (Vishay General Semiconductor - Diodes Division): These parts are electrically equivalent to the SR204-TP with identical voltage and current ratings. Both feature forward voltage of 500 mV @ 2 A, which is lower than the SR204-TP specification of 550 mV @ 2 A, indicating improved efficiency characteristics. Reverse leakage current is 500 µA @ 40 V, lower than the SR204-TP at 1 mA. Operating temperature range extends to -65°C, providing broader low-temperature operation compared to the SR204-TP at -50°C. Package configuration is DO-204AC (DO-15), compatible with standard through-hole PCB layouts.

SB240E-G (Comchip Technology): This part meets all electrical specifications of the SR204-TP with 40 V reverse voltage and 2 A current rating. Forward voltage is 500 mV @ 2 A and reverse leakage is 500 µA @ 40 V. Operating temperature range is -65°C ~ 125°C. Package is DO-15 (DO-204AC), suitable for through-hole mounting. Capacitance specification of 170 pF @ 4 V, 1 MHz is provided for this part.

Selection among substitute parts depends on application-specific requirements including forward voltage losses, reverse leakage characteristics, and operating temperature range. All parts are functionally equivalent for 40 V, 2 A Schottky rectifier applications.

Frequently Asked Questions (FAQ)

Q: Can SB240-E3/54, SB240-E3/73, and SB240E-G be used interchangeably with SR204-TP?

A: Yes. All substitute parts share identical voltage (40 V) and current (2 A) ratings, Schottky technology, fast recovery speed characteristics, and through-hole axial mounting configuration. Electrical performance is equivalent within the specified parameters.

Q: What is the difference between DO-41 and DO-15 packages?

A: DO-41 and DO-15 (DO-204AC) are both axial through-hole packages for diodes. They differ in physical dimensions but are mechanically compatible in standard PCB layouts designed for axial components. Pin spacing and lead diameter may vary; consult package drawings for specific mechanical requirements.

Q: Why do substitute parts show lower forward voltage (500 mV vs. 550 mV)?

A: Forward voltage specifications represent maximum values under specified conditions. Lower forward voltage in substitute parts indicates improved efficiency characteristics and reduced power dissipation at 2 A operation. This is a beneficial characteristic for circuit performance.

Q: Are there temperature range differences between SR204-TP and substitute parts?

A: The SR204-TP operates from -50°C to 125°C junction temperature. Substitute parts from Vishay and Comchip extend the lower temperature limit to -65°C, providing broader operating range. The upper temperature limit of 125°C is identical across all parts.

Q: Do all parts meet the same regulatory requirements?

A: Yes. SR204-TP and all substitute parts are RoHS3 Compliant and REACH Unaffected, meeting current regulatory standards for electronic components.

Q: What is the significance of reverse leakage current differences?

A: The SR204-TP specifies 1 mA reverse leakage @ 40 V, while substitute parts specify 500 µA @ 40 V. Lower reverse leakage in substitute parts indicates reduced standby current and improved blocking characteristics, beneficial for low-power applications.

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