SDUR1520 Equivalent & Substitute Parts

Part Overview

The SDUR1520 is a general-purpose rectifier diode manufactured by SMC Diode Solutions, rated for 200 V DC reverse voltage and 15 A average rectified current in a Through Hole TO-220AC package. This component is classified as Active and complies with ROHS3 and REACH Affected standards. Equivalent and substitute parts are identified based on matching electrical specifications, mechanical packaging, and thermal operating ranges to ensure direct functional replacement in circuit applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	15	A
Voltage - Forward (Vf) (Max) @ If	1.05 V @ 15 A	V
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	10	µA @ 200 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Mounting Type	Through Hole	—
Package / Case	TO-220-2	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the SDUR1520 are identified based on the following critical parameters:

Voltage Rating: DC reverse voltage must equal 200 V
Current Rating: Average rectified current must equal 15 A
Package Type: Must be Through Hole TO-220-2 (TO-220AC)
Speed Classification: Must be Fast Recovery with reverse recovery time ≤ 500 ns
Reverse Recovery Time: Must equal 35 ns
Mounting Configuration: Must support Through Hole mounting

The substitute part DPG15I200PA meets all these criteria and is therefore classified as a direct equivalent. Both parts share identical voltage, current, speed, and package specifications, enabling pin-for-pin replacement in circuit designs.

Parameter Comparison

Parameter	SDUR1520 (SMC)	DPG15I200PA (IXYS)	Match Status
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	Matched
Current - Average Rectified (Io)	15 A	15 A	Matched
Voltage - Forward (Vf) (Max) @ If	1.05 V @ 15 A	1.26 V @ 15 A	Within Tolerance
Reverse Recovery Time (trr)	35 ns	35 ns	Matched
Current - Reverse Leakage @ Vr	10 µA @ 200 V	1 µA @ 200 V	Equivalent
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)	Matched
Mounting Type	Through Hole	Through Hole	Matched
Package / Case	TO-220-2	TO-220-2	Matched
Operating Temperature - Junction	-55 to 150°C	-55 to 175°C	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Matched
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Matched

Engineering Selection Recommendations

SDUR1520 (Primary Selection)

The SDUR1520 is the original specified component and remains the preferred selection when available. It is Active in product status, ROHS3 Compliant, and REACH Affected. Current inventory is 684 pieces.

DPG15I200PA (Direct Substitute)

The DPG15I200PA from IXYS is a qualified direct substitute meeting all electrical and mechanical specifications. This component is Active in product status, ROHS3 Compliant, and REACH Unaffected. Current inventory is 915 pieces. The DPG15I200PA operates across an extended junction temperature range (-55 to 175°C versus -55 to 150°C), providing additional thermal margin in high-temperature applications. Forward voltage is slightly elevated at 1.26 V compared to 1.05 V, and reverse leakage is lower at 1 µA. Both characteristics remain within acceptable operating parameters for general-purpose rectification circuits.

Selection between these two parts should be based on availability, supply chain requirements, and compliance documentation needs specific to the end application.

Frequently Asked Questions (FAQ)

Q: Can the DPG15I200PA replace the SDUR1520 in existing designs?

A: Yes. Both parts share identical voltage ratings (200 V), current ratings (15 A), reverse recovery time (35 ns), and TO-220-2 package configuration. Pin-for-pin replacement is supported without circuit modification.

Q: What is the difference in forward voltage between these parts?

A: The SDUR1520 specifies 1.05 V maximum forward voltage at 15 A, while the DPG15I200PA specifies 1.26 V at the same current. This 0.21 V difference results in slightly higher power dissipation in the DPG15I200PA but remains within acceptable limits for general-purpose rectification applications.

Q: Are there thermal operating range differences?

A: Yes. The SDUR1520 operates from -55°C to 150°C junction temperature, while the DPG15I200PA extends to 175°C. The DPG15I200PA provides additional thermal headroom for applications operating at elevated ambient temperatures.

Q: Do both parts meet the same compliance standards?

A: Both parts are ROHS3 Compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings. The SDUR1520 is REACH Affected, while the DPG15I200PA is REACH Unaffected. Compliance requirements specific to the end application should determine selection.

Q: What is the reverse leakage current difference?

A: The SDUR1520 specifies 10 µA reverse leakage at 200 V, while the DPG15I200PA specifies 1 µA at the same voltage. Lower reverse leakage in the DPG15I200PA may provide improved performance in high-impedance or precision circuit applications.

Q: Are both parts available in the same packaging format?

A: Yes. Both the SDUR1520 and DPG15I200PA are supplied in Tube packaging and feature identical TO-220-2 (TO-220AC) mechanical configuration, supporting direct mechanical and electrical interchange.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message