48CTQ060STRR Equivalent & Substitute Parts

Part Overview

The 48CTQ060STRR is a Schottky diode array manufactured by Vishay General Semiconductor - Diodes Division. This component features a 1 Pair Common Cathode configuration rated for 60 V DC reverse voltage and 20 A average rectified current per diode. The device is packaged in TO-263-3 (D2PAK) surface mount format with fast recovery characteristics suitable for high-frequency switching applications.

The 48CTQ060STRR is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	60 V
Current - Average Rectified (Io) (per Diode)	20 A
Voltage - Forward (Vf) (Max) @ If	610 mV @ 20 A
Speed	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	2 mA @ 60 V
Operating Temperature - Junction	-55°C ~ 150°C
Mounting Type	Surface Mount
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the 48CTQ060STRR is determined by the following critical parameters:

Mandatory Compatibility Parameters:

Diode Configuration: 1 Pair Common Cathode
Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 60 V
Package / Case: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Mounting Type: Surface Mount

Current Rating Considerations: The 48CTQ060STRR is rated for 20 A average rectified current per diode. Substitute parts are grouped by current capacity:

Direct Equivalent (20 A): STPS41L60CG-TR maintains identical current rating
Reduced Current (15 A): NRVBB30H60CTT4G and STPS30L60CG-TR provide 15 A capacity
Reduced Current (10 A): STPS20L60CG-TR provides 10 A capacity

All substitute parts maintain the 60 V reverse voltage rating, Schottky technology, fast recovery speed, and D2PAK package format. Selection of a substitute with lower current rating is permissible only when circuit design allows operation within the reduced current specification.

Parameter Comparison

Parameter	48CTQ060STRR (Vishay)	STPS41L60CG-TR (STMicroelectronics)	STPS30L60CG-TR (STMicroelectronics)	STPS20L60CG-TR (STMicroelectronics)	NRVBB30H60CTT4G (onsemi)
Diode Configuration	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode	1 Pair Common Cathode
Technology	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	60 V	60 V	60 V	60 V	60 V
Current - Average Rectified (Io) (per Diode)	20 A	20 A	15 A	10 A	15 A
Voltage - Forward (Vf) (Max) @ If	610 mV @ 20 A	600 mV @ 20 A	600 mV @ 15 A	600 mV @ 10 A	620 mV @ 15 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)	Fast Recovery ≤ 500 ns, > 200 mA (Io)
Current - Reverse Leakage @ Vr	2 mA @ 60 V	600 µA @ 60 V	480 µA @ 60 V	350 µA @ 60 V	300 µA @ 60 V
Operating Temperature - Junction	-55°C ~ 150°C	150°C (Max)	150°C (Max)	150°C (Max)	-55°C ~ 175°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

STPS41L60CG-TR (STMicroelectronics) is the primary direct equivalent for the 48CTQ060STRR. This part maintains identical electrical specifications: 60 V reverse voltage, 20 A average rectified current, and D2PAK package format. The STPS41L60CG-TR is in active production status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. Forward voltage is marginally lower (600 mV vs. 610 mV at rated current), providing improved thermal performance. Reverse leakage current is higher (600 µA vs. 2 mA), which is acceptable for most switching applications. Maximum junction temperature specification is 150°C, matching the original part's upper operating limit.

STPS30L60CG-TR (STMicroelectronics) and NRVBB30H60CTT4G (onsemi) are suitable substitutes when circuit design permits operation at 15 A current rating. Both parts maintain 60 V reverse voltage and D2PAK packaging. The STPS30L60CG-TR offers lower forward voltage (600 mV) and is in active production with ROHS3 compliance. The NRVBB30H60CTT4G provides extended operating temperature range (-55°C to 175°C) and is part of the SWITCHMODE™ series, offering enhanced thermal performance at reduced current levels.

STPS20L60CG-TR (STMicroelectronics) is applicable only when circuit design accommodates 10 A maximum current per diode. This part maintains 60 V reverse voltage and D2PAK packaging with active production status and ROHS3 compliance.

All substitute parts are ROHS3 compliant, addressing the non-compliance status of the obsolete 48CTQ060STRR. Selection should prioritize the STPS41L60CG-TR for direct replacement in existing designs. Lower-current alternatives require circuit-level evaluation to confirm adequate current margin.

Frequently Asked Questions (FAQ)

Q: Can STPS41L60CG-TR directly replace 48CTQ060STRR without circuit modification?

A: Yes. The STPS41L60CG-TR maintains identical current rating (20 A), reverse voltage (60 V), diode configuration (1 Pair Common Cathode), and D2PAK package format. Forward voltage is slightly lower (600 mV vs. 610 mV), which improves efficiency. Pin-to-pin compatibility is confirmed.

Q: What is the difference between the 20 A, 15 A, and 10 A rated substitutes?

A: Current rating indicates the maximum average rectified current per diode. The 48CTQ060STRR is rated for 20 A. STPS41L60CG-TR maintains this rating. STPS30L60CG-TR and NRVBB30H60CTT4G are rated for 15 A. STPS20L60CG-TR is rated for 10 A. Selection of a lower-rated part is permissible only if circuit design ensures actual current does not exceed the substitute part's rating.

Q: Are all substitute parts in the same D2PAK package?

A: Yes. All substitute parts use TO-263-3, D2PAK (2 Leads + Tab), TO-263AB packaging. PCB footprint and thermal interface compatibility are identical.

Q: What is the significance of RoHS compliance for these substitutes?

A: The original 48CTQ060STRR is RoHS non-compliant. All substitute parts (STPS41L60CG-TR, STPS30L60CG-TR, STPS20L60CG-TR, NRVBB30H60CTT4G) are ROHS3 compliant, meeting current environmental and regulatory requirements for new designs and production.

Q: How do reverse leakage currents compare between the original and substitutes?

A: The 48CTQ060STRR specifies 2 mA reverse leakage at 60 V. Substitute parts show higher leakage: STPS41L60CG-TR (600 µA), STPS30L60CG-TR (480 µA), STPS20L60CG-TR (350 µA), and NRVBB30H60CTT4G (300 µA). These values are within acceptable ranges for Schottky diode technology and do not impact performance in typical switching applications.

Q: What is the operating temperature range for each substitute?

A: STPS41L60CG-TR, STPS30L60CG-TR, and STPS20L60CG-TR specify 150°C maximum junction temperature. NRVBB30H60CTT4G specifies -55°C to 175°C operating range, providing extended high-temperature capability. The original 48CTQ060STRR operates from -55°C to 150°C.

Q: Which substitute offers the best thermal performance?

A: STPS41L60CG-TR and STPS30L60CG-TR both specify 600 mV forward voltage, lower than the original part's 610 mV, resulting in reduced power dissipation. NRVBB30H60CTT4G at 15 A rating also provides 620 mV forward voltage. Lower forward voltage directly reduces thermal load in high-current applications.

Q: Is the NRVBB30H60CTT4G suitable for high-temperature environments?

A: Yes. The NRVBB30H60CTT4G operates to 175°C junction temperature, exceeding the 150°C maximum of the original part and other STMicroelectronics substitutes. This part is suitable for applications requiring extended thermal headroom.

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