B0530WS Schottky Diode Equivalent & Substitute Parts

Part Overview

The B0530WS is an active Schottky diode manufactured by Taiwan Semiconductor Corporation, designed for surface mount applications in the SOD-323F package. This component operates at 30V reverse voltage with a 200mA average rectified current rating, making it suitable for low-power rectification and switching applications. The part is ROHS3 compliant and REACH unaffected, with 173,400 units currently in stock.

Substitute parts are identified when equivalent functional performance can be achieved within the allowed electrical and mechanical parameters of the Schottky diode category, particularly when original inventory becomes unavailable or when alternative sourcing is required for supply chain continuity.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	200	mA
Voltage - Forward (Vf) (Max) @ If	360 mV @ 100 mA	mV
Current - Reverse Leakage @ Vr	500	µA @ 30 V
Capacitance @ Vr, F	160	pF @ 0V, 1MHz
Package / Case	SC-90, SOD-323F	-
Operating Temperature - Junction	-65 to 125	°C
Technology	Schottky	-
Mounting Type	Surface Mount	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the B0530WS is determined by the following critical parameters:

Primary Substitution Criteria:

Technology classification: Schottky diode
Package compatibility: SOD-323F surface mount package
Voltage rating: Minimum 30V DC reverse voltage capability
Current rating: Minimum 200mA average rectified current
Mounting type: Surface mount configuration
Compliance: ROHS3 compliant status

The RB551V-30_R1_00001 manufactured by Panjit International Inc. is identified as a substitute part. However, this part exhibits a reduced maximum reverse voltage rating of 20V compared to the B0530WS specification of 30V. This voltage differential represents a material deviation from the original part specification and must be evaluated within the context of the specific application circuit requirements.

Parameter Comparison

Parameter	B0530WS (Main Part)	RB551V-30_R1_00001 (Substitute)	Unit
Manufacturer	Taiwan Semiconductor Corporation	Panjit International Inc.	-
Technology	Schottky	Schottky	-
Voltage - DC Reverse (Vr) (Max)	30	20	V
Current - Average Rectified (Io)	200	500	mA
Voltage - Forward (Vf) (Max) @ If	360 mV @ 100 mA	470 mV @ 500 mA	mV
Current - Reverse Leakage @ Vr	500 µA @ 30 V	100 µA @ 20 V	µA
Package / Case	SC-90, SOD-323F	SC-90, SOD-323F	-
Operating Temperature - Junction	-65 to 125	-55 to 125	°C
Mounting Type	Surface Mount	Surface Mount	-
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	-
REACH Status	REACH Unaffected	REACH Unaffected	-

Engineering Selection Recommendations

Both the B0530WS and RB551V-30_R1_00001 are active products with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution.

The B0530WS operates across a junction temperature range of -65°C to 125°C, providing extended low-temperature performance. The RB551V-30_R1_00001 operates from -55°C to 125°C, with a narrower low-temperature specification.

The RB551V-30_R1_00001 provides higher current capacity at 500mA average rectified current compared to the B0530WS at 200mA. However, the reverse voltage rating of the substitute part is 20V maximum, which is 10V lower than the B0530WS specification of 30V. This voltage differential must be evaluated against the actual circuit operating conditions and maximum reverse voltage exposure in the target application.

Both parts share identical package specifications (SC-90, SOD-323F) and surface mount mounting type, ensuring mechanical and footprint compatibility on printed circuit boards.

Frequently Asked Questions (FAQ)

Q: Can the RB551V-30_R1_00001 be used as a direct replacement for the B0530WS?

A: The RB551V-30_R1_00001 shares the same SOD-323F package and surface mount configuration as the B0530WS. However, the substitute part has a maximum reverse voltage rating of 20V compared to the B0530WS rating of 30V. Substitution is only appropriate when the circuit maximum reverse voltage exposure does not exceed 20V.

Q: What are the key differences in electrical performance between these parts?

A: The RB551V-30_R1_00001 provides 2.5 times higher average rectified current capacity (500mA versus 200mA). The forward voltage drop is higher at 470mV @ 500mA compared to 360mV @ 100mA for the B0530WS. The reverse leakage current is lower in the substitute part at 100µA @ 20V versus 500µA @ 30V in the main part.

Q: Are both parts compliant with current environmental regulations?

A: Both the B0530WS and RB551V-30_R1_00001 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.

Q: What is the operating temperature range difference?

A: The B0530WS operates from -65°C to 125°C junction temperature. The RB551V-30_R1_00001 operates from -55°C to 125°C. The B0530WS provides 10°C additional low-temperature capability.

Q: Are the packages physically identical?

A: Both parts use the SC-90 package designation with SOD-323F supplier device package specification. Both are surface mount components with identical footprint requirements on printed circuit boards.

Q: What packaging format is available for the RB551V-30_R1_00001?

A: The RB551V-30_R1_00001 is supplied in Tape & Reel (TR) packaging format with Moisture Sensitivity Level (MSL) rating of 1 (Unlimited).

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