STPR1520D Equivalent & Substitute Parts

Part Overview

The STPR1520D is a general-purpose rectifier diode manufactured by STMicroelectronics, rated for 200 V DC reverse voltage and 15 A average rectified current in a TO-220AC package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The STPR1520D features fast recovery characteristics with a reverse recovery time of 30 ns and is suitable for applications requiring high-speed rectification in power supply and switching circuits.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	15	A
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 30 A	V
Reverse Recovery Time (trr)	30	ns
Current - Reverse Leakage @ Vr	50	µA @ 200 V
Mounting Type	Through Hole	-
Package / Case	TO-220-2	-
Operating Temperature - Junction (Max)	150	°C
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitute parts for the STPR1520D are classified based on electrical and mechanical compatibility within the following criteria:

Direct Substitutes maintain identical or superior electrical specifications across all critical parameters: 200 V DC reverse voltage rating, 15 A average rectified current, fast recovery speed (≤500 ns), through-hole mounting, and TO-220-2 package configuration. Direct substitutes must support the same voltage and current specifications without derating.

Similar Substitutes share the same voltage rating (200 V) and package type (TO-220-2) but differ in one or more of the following: average rectified current rating, forward voltage characteristics, reverse recovery time, or reverse leakage current. These parts are suitable when the application can accommodate the specified parameter variations.

The substitution logic is based strictly on:

Voltage - DC Reverse (Vr) (Max): 200 V minimum
Current - Average Rectified (Io): 15 A or higher
Mounting Type: Through Hole
Package / Case: TO-220-2 or TO-220AC
Speed: Fast Recovery ≤500 ns
RoHS Compliance: ROHS3 Compliant

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	trr [ns]	Ir @ Vr [µA]	Package	Status
STPR1520D	STMicroelectronics	200	15	1.25 @ 30 A	30	50 @ 200 V	TO-220AC	Obsolete
STTH1502D	STMicroelectronics	200	15	1.1 @ 15 A	36	10 @ 200 V	TO-220AC	Active
MUR1520G	onsemi	200	15	1.05 @ 15 A	35	10 @ 200 V	TO-220-2	Active
DPG15I200PA	IXYS	200	15	1.26 @ 15 A	35	1 @ 200 V	TO-220AC	Active
SDUR1520	SMC Diode Solutions	200	15	1.05 @ 15 A	35	10 @ 200 V	TO-220AC	Active
BYV79E-200,127	WeEn Semiconductors	200	14	1.05 @ 14 A	30	50 @ 200 V	TO-220AC	Active
DPG10I200PA	IXYS	200	10	1.27 @ 10 A	35	1 @ 200 V	TO-220AC	Active

Engineering Selection Recommendations

Direct Substitutes (Recommended Priority Order)

STTH1502D (STMicroelectronics): Active product status with identical voltage and current ratings. Lower forward voltage (1.1 V @ 15 A) and reduced reverse leakage (10 µA @ 200 V) compared to STPR1520D. Higher maximum junction temperature (175°C vs. 150°C) provides improved thermal margin. ROHS3 compliant.
MUR1520G (onsemi): Active product with SWITCHMODE™ series designation. Matches 200 V / 15 A specifications with superior forward voltage (1.05 V @ 15 A) and reverse leakage (10 µA @ 200 V). Extended operating temperature range (-65°C to 175°C). ROHS3 compliant. High inventory availability (37,400 pcs).
DPG15I200PA (IXYS): Active product with HiPerFRED™ technology. Maintains 200 V / 15 A ratings with forward voltage of 1.26 V @ 15 A and minimal reverse leakage (1 µA @ 200 V). Extended operating temperature range (-55°C to 175°C). ROHS3 compliant.
SDUR1520 (SMC Diode Solutions): Active product matching 200 V / 15 A specifications. Forward voltage of 1.05 V @ 15 A and reverse leakage of 10 µA @ 200 V. Operating temperature range -55°C to 150°C. ROHS3 compliant.

Similar Substitutes (Application-Dependent)

BYV79E-200,127 (WeEn Semiconductors): Active product with 200 V rating but reduced current rating (14 A vs. 15 A). Suitable for applications with maximum current requirements at or below 14 A. Reverse recovery time matches STPR1520D (30 ns). ROHS3 compliant. REACH affected status requires verification for specific applications.
DPG10I200PA (IXYS): Active product with 200 V rating but reduced current rating (10 A vs. 15 A). Suitable only for applications with maximum current requirements at or below 10 A. Minimal reverse leakage (1 µA @ 200 V). ROHS3 compliant.

Frequently Asked Questions (FAQ)

Q: Can STTH1502D directly replace STPR1520D in all applications?

A: STTH1502D is a direct substitute meeting or exceeding all critical electrical parameters. The lower forward voltage and reduced reverse leakage represent improvements. Verify thermal design accommodates the higher maximum junction temperature (175°C vs. 150°C) if the original design operated near thermal limits.

Q: What is the primary advantage of MUR1520G over STPR1520D?

A: MUR1520G offers superior forward voltage characteristics (1.05 V @ 15 A vs. 1.25 V @ 30 A), reduced reverse leakage (10 µA vs. 50 µA), and an extended operating temperature range (-65°C to 175°C). These characteristics result in lower power dissipation and improved thermal performance.

Q: Can BYV79E-200,127 be used as a substitute?

A: BYV79E-200,127 is suitable only for applications where the maximum average rectified current requirement does not exceed 14 A. The 200 V voltage rating and fast recovery characteristics (30 ns) match STPR1520D specifications. Verify application current requirements before selection.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts are ROHS3 compliant. SDUR1520 and BYV79E-200,127 carry REACH affected status, requiring verification for specific regulatory requirements in target markets.

Q: What is the difference between TO-220AC and TO-220-2 packages?

A: Both designations refer to the same physical TO-220 package with two leads. TO-220AC and TO-220-2 are equivalent package configurations suitable for through-hole mounting. Pin compatibility is maintained across all listed substitutes.

Q: Which substitute offers the lowest forward voltage drop?

A: MUR1520G and SDUR1520 both offer 1.05 V forward voltage @ 15 A, representing the lowest forward voltage among 15 A rated substitutes. This characteristic reduces power dissipation in rectification circuits.

Q: Can DPG10I200PA be used in a 15 A application?

A: DPG10I200PA is rated for 10 A average rectified current and is not suitable for applications requiring 15 A continuous operation. Using this part in a 15 A application would exceed its current rating and result in excessive power dissipation and potential device failure.

Q: What is the significance of reverse recovery time in substitute selection?

A: Reverse recovery time (trr) affects switching speed and electromagnetic interference characteristics. STPR1520D specifies 30 ns. All substitutes maintain fast recovery characteristics (30-36 ns), ensuring compatibility with high-frequency switching applications. Shorter trr values (30 ns) provide marginal advantages in noise reduction.

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