RB088NS-40FHTL Equivalent & Substitute Parts

Part Overview

The RB088NS-40FHTL is a Schottky diode array manufactured by Rohm Semiconductor, configured as 1 pair common cathode with a maximum reverse voltage of 40 V and average rectified current of 10 A per diode. The device is housed in a TO-263-3 D2PAK surface mount package and is classified as an active product with AEC-Q101 automotive qualification. This component is supplied in Cut Tape (CT) & Digi-Reel® packaging format.

Equivalent and substitute parts are identified when design requirements permit operation at different voltage or current ratings, or when alternative packaging formats are acceptable for procurement or assembly purposes.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Cathode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	40 V
Current - Average Rectified (Io) (per Diode)	10 A
Voltage - Forward (Vf) (Max) @ If	770 mV @ 5 A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	3 µA @ 40 V
Operating Temperature - Junction (Max)	150°C
Mounting Type	Surface Mount
Package / Case	TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Supplier Device Package	LPDS
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Grade	Automotive
Qualification	AEC-Q101

Substitute Part Grouping Explanation

Substitute parts for the RB088NS-40FHTL are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalent: Parts that maintain identical electrical specifications across all critical parameters, differing only in packaging format or supplier device package designation.

Similar Parts: Parts that share the same diode configuration, technology, package form factor, and mounting type, but operate at different voltage or current ratings. These parts are suitable for applications where the design voltage or current requirements differ from the original specification.

The following parameters determine substitution eligibility:

Diode Configuration (must be 1 Pair Common Cathode)
Technology (must be Schottky)
Package / Case (must be TO-263-3, D2PAK)
Mounting Type (must be Surface Mount)
Operating Temperature - Junction (must be 150°C maximum)
Speed (must be Fast Recovery ≤ 500ns, > 200mA)

Parameter Comparison

Parameter	RB088NS-40FHTL	RB088NS-40TL	STPS3030CG-TR	STPS30L30CG-TR	STPS41L30CG-TR
Manufacturer	Rohm Semiconductor	Rohm Semiconductor	STMicroelectronics	STMicroelectronics	STMicroelectronics
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)	40 V	40 V	30 V	30 V	30 V
Current - Average Rectified (Io) (per Diode)	10 A	10 A	15 A	15 A	20 A
Voltage - Forward (Vf) (Max) @ If	770 mV @ 5 A	770 mV @ 5 A	490 mV @ 15 A	460 mV @ 15 A	480 mV @ 20 A
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Current - Reverse Leakage @ Vr	3 µA @ 40 V	3 µA @ 40 V	1 mA @ 30 V	1.5 mA @ 60 V	1.5 mA @ 30 V
Operating Temperature - Junction (Max)	150°C	150°C	150°C	150°C	150°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
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

RB088NS-40TL is a parametric equivalent to the RB088NS-40FHTL. Both parts are manufactured by Rohm Semiconductor and maintain identical electrical specifications: 40 V maximum reverse voltage, 10 A average rectified current per diode, 770 mV forward voltage at 5 A, and 3 µA reverse leakage current at 40 V. The primary difference is packaging format: RB088NS-40FHTL is supplied in Cut Tape (CT) & Digi-Reel® format, while RB088NS-40TL is supplied in Tape & Reel (TR) format. Both are ROHS3 compliant, AEC-Q101 qualified, and active products. Selection between these two parts depends on procurement and assembly requirements.

STPS3030CG-TR, STPS30L30CG-TR, and STPS41L30CG-TR are similar parts manufactured by STMicroelectronics. These devices share the same diode configuration, Schottky technology, TO-263-3 D2PAK package, and surface mount mounting type. However, they operate at a reduced maximum reverse voltage of 30 V compared to the 40 V rating of the RB088NS-40FHTL. These parts are suitable for applications where the circuit design operates at 30 V or lower. The STMicroelectronics parts offer higher current ratings (15 A to 20 A per diode) and lower forward voltage characteristics. All substitute parts are ROHS3 compliant, active products, and maintain the same 150°C maximum junction temperature.

Frequently Asked Questions (FAQ)

Q: Can RB088NS-40TL be used as a direct replacement for RB088NS-40FHTL?

A: Yes. RB088NS-40TL is a parametric equivalent with identical electrical specifications. The only difference is the packaging format: Cut Tape (CT) & Digi-Reel® versus Tape & Reel (TR). Both parts are suitable for the same circuit applications and have identical performance characteristics.

Q: Are the STMicroelectronics parts (STPS3030CG-TR, STPS30L30CG-TR, STPS41L30CG-TR) direct replacements?

A: No. These are similar parts, not parametric equivalents. They operate at a maximum reverse voltage of 30 V instead of 40 V. They are suitable only for applications where the circuit design operates at 30 V or lower. The package form factor and mounting type are identical, but the electrical ratings differ.

Q: What is the key difference between STPS3030CG-TR, STPS30L30CG-TR, and STPS41L30CG-TR?

A: All three parts operate at 30 V maximum reverse voltage. The primary differences are current rating and forward voltage characteristics. STPS3030CG-TR and STPS30L30CG-TR are rated for 15 A average rectified current per diode, while STPS41L30CG-TR is rated for 20 A. Forward voltage varies slightly between parts at their respective rated currents.

Q: Are all substitute parts automotive qualified?

A: The RB088NS-40FHTL and RB088NS-40TL are both AEC-Q101 qualified automotive grade components. The STMicroelectronics parts (STPS3030CG-TR, STPS30L30CG-TR, STPS41L30CG-TR) are not listed with automotive qualification in the provided specifications.

Q: Do all parts have the same moisture sensitivity level?

A: Yes. All parts listed have Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.

Q: Can I use a higher current rated part as a substitute?

A: Yes, if the voltage rating is compatible. A part with a higher current rating can be used in applications requiring lower current. However, if the voltage rating is lower (such as the 30 V STMicroelectronics parts versus the 40 V Rohm parts), the application circuit voltage must not exceed the lower rating.

Q: What packaging formats are available?

A: RB088NS-40FHTL is supplied in Cut Tape (CT) & Digi-Reel® format. RB088NS-40TL is supplied in Tape & Reel (TR) format. STPS3030CG-TR, STPS30L30CG-TR, and STPS41L30CG-TR are supplied in Cut Tape (CT) & Digi-Reel® format. All parts use the same TO-263-3 D2PAK surface mount package.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message