MBRX0530-TP Equivalent & Substitute Parts

Part Overview

The MBRX0530-TP is a Schottky rectifier diode manufactured by Micro Commercial Co, rated for 30V DC reverse voltage and 500mA average rectified current in a surface mount SOD-323 package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. The part demonstrates fast recovery characteristics suitable for switching applications requiring low forward voltage drop and rapid switching performance.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	500	mA
Voltage - Forward (Vf) (Max) @ If	550 mV @ 500 mA	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	300	µA @ 30 V
Mounting Type	Surface Mount	—
Package / Case	SC-76, SOD-323	—
Operating Temperature - Junction	-55 to 125	°C
Technology	Schottky	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the MBRX0530-TP is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria (Parametric Equivalents):

Voltage - DC Reverse (Vr) (Max): 30V
Current - Average Rectified (Io): 500mA
Voltage - Forward (Vf) (Max) @ If: 550 mV @ 500 mA
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr: 300 µA @ 30 V
Package / Case: SC-76, SOD-323
Mounting Type: Surface Mount
Operating Temperature - Junction: -55°C to 125°C

Secondary Substitution Criteria (Similar Parts): Parts that maintain the 30V reverse voltage rating and SOD-323 package but differ in current rating (200mA instead of 500mA) or speed classification (Small Signal instead of Fast Recovery) are classified as similar substitutes. These parts are suitable only when circuit requirements permit reduced current handling or when speed performance is not critical.

Tertiary Substitution Criteria (Package Variants): Parts with alternative surface mount packages (UMD2, TUMD2M) that maintain electrical specifications are included for applications where package footprint flexibility exists.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Speed	Ir @ Vr	Package	Product Status	Temp Range
MBRX0530-TP	Micro Commercial Co	30V	500mA	550 mV @ 500 mA	Fast Recovery ≤ 500ns, > 200mA	300 µA @ 30V	SOD-323	Obsolete	-55 to 125°C
B0530WS-TP	Micro Commercial Co	30V	500mA	550 mV @ 500 mA	Fast Recovery ≤ 500ns, > 200mA	300 µA @ 30V	SOD-323	Active	-55 to 125°C
B0530WSHE3-TP	Micro Commercial Co	30V	500mA	550 mV @ 500 mA	Fast Recovery ≤ 500ns, > 200mA	300 µA @ 30V	SOD-323	Active	-55 to 125°C
B0530WS-7-F	Diodes Incorporated	30V	500mA	450 mV @ 500 mA	Fast Recovery ≤ 500ns, > 200mA	500 µA @ 30V	SOD-323	Active	-40 to 125°C
RB550VM-30FHTE-17	Rohm Semiconductor	30V	500mA	590 mV @ 500 mA	Fast Recovery ≤ 500ns, > 200mA	35 µA @ 30V	SOD-323F	Active	-55 to 150°C
RSX051VAM30TR	Rohm Semiconductor	30V	500mA	390 mV @ 500 mA	Fast Recovery ≤ 500ns, > 200mA	200 µA @ 30V	TUMD2M	Active	-55 to 150°C
RSX051VYM30FHTR	Rohm Semiconductor	30V	500mA	390 mV @ 500 mA	Fast Recovery ≤ 500ns, > 200mA	200 µA @ 30V	TUMD2M	Active	-55 to 150°C
1PS76SB10,135	Nexperia USA Inc.	30V	200mA	800 mV @ 100 mA	Small Signal ≤ 200mA	2 µA @ 25V	SOD-323	Active	-55 to 125°C
BAT43WS-HE3-18	Vishay General Semiconductor - Diodes Division	30V	200mA	450 mV @ 15 mA	Small Signal ≤ 200mA	500 nA @ 25V	SOD-323	Active	-55 to 125°C
BAT5403WE6327HTSA1	Infineon Technologies	30V	200mA	800 mV @ 100 mA	Small Signal ≤ 200mA	2 µA @ 25V	SOD-323	Active	-55 to 150°C

Engineering Selection Recommendations

Parametric Equivalents (Direct Substitutes):

B0530WS-TP and B0530WSHE3-TP from Micro Commercial Co are parametric equivalents to the obsolete MBRX0530-TP. Both parts maintain identical electrical specifications across all critical parameters: 30V reverse voltage, 500mA current rating, 550mV forward voltage drop, and fast recovery speed classification. Both are active products with ROHS3 compliance and unlimited moisture sensitivity rating. B0530WSHE3-TP includes automotive-grade qualification (AEC-Q101) and is available in higher inventory (9221 units), making it the preferred selection for new designs requiring automotive-qualified components.

Fast Recovery 500mA Alternatives:

B0530WS-7-F from Diodes Incorporated maintains the 30V/500mA electrical specification with fast recovery characteristics. This part features improved forward voltage performance (450mV vs. 550mV) but operates over a narrower temperature range (-40°C to 125°C) compared to the original specification (-55°C to 125°C). Selection of this part requires verification that the minimum operating temperature of -40°C is acceptable for the application.

RB550VM-30FHTE-17 and RSX051VYM30FHTR from Rohm Semiconductor both support 30V/500mA operation with fast recovery performance. RB550VM-30FHTE-17 uses an alternative SOD-323F package variant (UMD2), while RSX051VYM30FHTR employs a TUMD2M package. Both Rohm parts feature automotive qualification (AEC-Q101) and extended maximum junction temperature (150°C). RSX051VYM30FHTR demonstrates superior forward voltage performance (390mV) and lower reverse leakage (200µA). Package compatibility with existing PCB layouts must be confirmed before selection.

Current-Limited Alternatives (200mA Rating):

1PS76SB10,135 from Nexperia, BAT43WS-HE3-18 from Vishay, and BAT5403WE6327HTSA1 from Infineon are classified as similar substitutes due to reduced current rating (200mA vs. 500mA). These parts maintain the 30V reverse voltage specification and SOD-323 package form factor but employ small signal speed classification. Selection of these parts is restricted to applications where circuit current requirements do not exceed 200mA. All three parts carry automotive qualification (AEC-Q101) and ROHS3 compliance.

Compliance and Certification Status:

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and unlimited moisture sensitivity rating (MSL 1), matching the original part's environmental and regulatory standing. Parts designated with automotive qualification (AEC-Q101) are suitable for automotive applications; non-qualified parts are suitable for industrial and consumer applications.

Frequently Asked Questions (FAQ)

Q: Can B0530WS-TP be used as a direct replacement for MBRX0530-TP?

A: Yes. B0530WS-TP is a parametric equivalent with identical electrical specifications: 30V reverse voltage, 500mA current rating, 550mV forward voltage drop at 500mA, and fast recovery speed classification. Both parts use the SOD-323 package and operate over the same temperature range (-55°C to 125°C). The primary difference is product status: MBRX0530-TP is obsolete while B0530WS-TP is active.

Q: What is the difference between B0530WS-TP and B0530WSHE3-TP?

A: Both parts are parametric equivalents with identical electrical specifications. B0530WSHE3-TP includes automotive-grade qualification (AEC-Q101) and specifies junction capacitance (30pF @ 4V, 1MHz), while B0530WS-TP does not include these designations. B0530WSHE3-TP is available in higher inventory (9221 units vs. 3300 units) and is recommended for new designs requiring automotive qualification.

Q: Can I use a 200mA-rated diode (such as 1PS76SB10,135) in place of the 500mA MBRX0530-TP?

A: Substitution is permissible only if circuit analysis confirms that the average rectified current does not exceed 200mA. The 200mA-rated parts maintain the 30V reverse voltage specification and SOD-323 package compatibility but employ small signal speed classification instead of fast recovery. Forward voltage characteristics also differ: 1PS76SB10,135 specifies 800mV @ 100mA versus 550mV @ 500mA for the original part. Thermal and performance analysis is required before implementation.

Q: What are the package differences between SOD-323, UMD2, and TUMD2M?

A: SOD-323 (SC-76) is the original package form factor used by MBRX0530-TP and most substitute parts. UMD2 (SC-90) is an alternative surface mount package used by RB550VM-30FHTE-17. TUMD2M is a 2-SMD flat lead package used by RSX051VAM30TR and RSX051VYM30FHTR. Package selection depends on PCB layout compatibility and available footprint space. Electrical performance is independent of package selection among these variants.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance and REACH unaffected status, matching the environmental and regulatory standing of the original MBRX0530-TP.

Q: Which substitute part offers the lowest forward voltage drop?

A: RSX051VAM30TR and RSX051VYM30FHTR from Rohm Semiconductor both specify 390mV forward voltage drop @ 500mA, compared to 550mV for the original part. B0530WS-7-F from Diodes Incorporated specifies 450mV @ 500mA. Lower forward voltage reduces power dissipation in switching applications. Both Rohm parts employ alternative package formats (TUMD2M) requiring PCB layout verification.

Q: What is the temperature operating range difference between substitute parts?

A: MBRX0530-TP specifies -55°C to 125°C junction temperature. B0530WS-7-F from Diodes Incorporated operates over -40°C to 125°C, a narrower range at the low temperature extreme. Rohm parts (RB550VM-30FHTE-17 and RSX051VYM30FHTR) extend to 150°C maximum junction temperature. Application requirements determine whether extended high-temperature performance is necessary.

Q: Can I substitute a Rohm part with a different package (UMD2 or TUMD2M) without PCB redesign?

A: No. UMD2 and TUMD2M packages have different footprints than the original SOD-323 package. PCB layout modification is required to accommodate these alternative packages. Verify footprint compatibility with your PCB design tools before component selection.

Q: Which substitute parts carry automotive qualification?

A: B0530WSHE3-TP, RB550VM-30FHTE-17, RSX051VYM30FHTR, 1PS76SB10,135, BAT43WS-HE3-18, and BAT5403WE6327HTSA1 all carry AEC-Q101 automotive qualification. B0530WS-TP and B0530WS-7-F do not include automotive qualification designations. Selection depends on whether the application requires automotive-grade components.

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