Equivalent & Substitute Parts for RB161SS-30T2R – Diodes, Rectifiers

Part Overview

The RB161SS-30T2R by Rohm Semiconductor is a Schottky diode belonging to the Diodes, Rectifiers category. This component features a 30 V DC reverse voltage, 1A average rectified current, and is packaged in a surface-mount 0603 (1608 Metric) configuration. The product is currently marked as Obsolete. Alternative model identification is necessary to maintain design continuity and ensure inventory support for existing and future build requirements.

Key Parameters

Parameter	RB161SS-30T2R
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	30 V
Current - Average Rectified (Io)	1A
Voltage - Forward (Vf) (Max) @ If	520 mV @ 1A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	500 µA @ 30 V
Mounting Type	Surface Mount
Package / Case	0603 (1608 Metric)
Operating Temperature - Junction	125°C
RoHS Status	ROHS3 Compliant
MSL	1 (Unlimited)
REACH Status	REACH Unaffected
ECCN	EAR99

Substitute Part Grouping Explanation

Substitute parts for Schottky diodes are determined based exclusively on matching technology, maximum reverse voltage, average rectified current, forward voltage at rated current, switching speed, mounting type, package/case, and compliance (RoHS, MSL, REACH status). Only parts sharing these parameters or with strictly specified variations qualify as potential substitutes for RB161SS-30T2R.

Key parameters used:

Schottky technology
Maximum DC reverse voltage (Vr)
Average rectified current (Io)
Forward voltage (Vf) at specified current
Speed classification
Mounting type and package format
Compliance and certifications

Parameter Comparison

Parameter	RB161SS-30T2R	RB161QS-40T18R
Technology	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	30 V	40 V
Current - Average Rectified (Io)	1A	1A
Voltage - Forward (Vf) (Max) @ If	520 mV @ 1A	600 mV @ 1A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	500 µA @ 30 V	100 µA @ 10 V
Mounting Type	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99

Engineering Selection Recommendations

The RB161SS-30T2R is marked as Obsolete, requiring use of an active equivalent such as RB161QS-40T18R where parameters align. Both the main and substitute parts are ROHS3 Compliant, have the same MSL level, REACH status, and share ECCN assignment. Selection of substitute parts should be performed strictly with reference to the product status and compliance certifications provided.

Frequently Asked Questions (FAQ)

Q. Which electrical parameters must match for a substitute diode to qualify?
A. Substitute qualification is determined by matching Schottky technology, DC reverse voltage rating, average rectified current, forward voltage at designated current, speed specification, and mounting type.

Q. Is the package/case important for substitution?
A. Yes. Surface mount configuration must align to mounting requirements; package/case format impacts physical compatibility.

Q. What compliance certifications are present in both parts?
A. Both diodes are ROHS3 Compliant, share Moisture Sensitivity Level 1 (Unlimited), REACH Unaffected status, and EAR99 ECCN.

Q. Why is substitution necessary for RB161SS-30T2R?
A. The RB161SS-30T2R is classified as Obsolete, necessitating replacement to ensure continued supply and design support.

Q. Are substitute diodes always fully compatible?
A. Compatibility for substitution is strictly based on the allowed and specified parameters listed; all considerations must relate directly to these criteria.

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