MBR0530 Equivalent & Substitute Parts

Part Overview

The MBR0530 is a Schottky rectifier diode rated for 30 V DC reverse voltage and 500 mA average rectified current in a surface mount SOD-123 package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The MBR0530 serves applications requiring fast recovery rectification with low forward voltage drop characteristics typical of Schottky technology.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	30 V
Current - Average Rectified (Io)	500 mA
Voltage - Forward (Vf) (Max) @ If	430 mV @ 500 mA
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)
Current - Reverse Leakage @ Vr	130 µA @ 30 V
Mounting Type	Surface Mount
Package / Case	SOD-123
Operating Temperature - Junction	-65°C ~ 125°C
Technology	Schottky
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the MBR0530 are classified into three categories based on electrical and mechanical compatibility:

Parametric Equivalents (Direct Replacements): Parts that match all critical electrical parameters (30 V reverse voltage, 500 mA current rating, 430 mV forward voltage, fast recovery speed, 130 µA reverse leakage) and use the same SOD-123 package. These parts differ only in packaging format (Cut Tape, Digi-Reel, or Tape & Reel) or product status (Active vs. Obsolete).

Direct Substitutes (Higher Voltage Rating): Parts that exceed the reverse voltage specification (40 V instead of 30 V) while maintaining the 500 mA current rating and SOD-123 package. These provide enhanced voltage margin and are suitable for applications where the higher voltage rating does not create design conflicts.

Similar Parts (Different Manufacturers): Parts from alternative manufacturers that maintain the 30 V / 500 mA electrical specification and SOD-123 package but may have minor variations in forward voltage, reverse leakage, or operating temperature range.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Reverse Leakage @ Vr	Package	Product Status	Packaging Format
MBR0530	onsemi	30 V	500 mA	430 mV @ 500 mA	130 µA @ 30 V	SOD-123	Obsolete	-
MBR0530T1G	onsemi	30 V	500 mA	430 mV @ 500 mA	130 µA @ 30 V	SOD-123	Active	Cut Tape (CT) & Digi-Reel®
MBR0530T3G	onsemi	30 V	500 mA	430 mV @ 500 mA	130 µA @ 30 V	SOD-123	Active	Cut Tape (CT) & Digi-Reel®
NRVB0530T1G	onsemi	30 V	500 mA	430 mV @ 500 mA	130 µA @ 30 V	SOD-123	Active	Tape & Reel (TR)
STPS0530Z	STMicroelectronics	30 V	500 mA	430 mV @ 500 mA	130 µA @ 30 V	SOD-123	Active	Cut Tape (CT) & Digi-Reel®
MBR0540T1G	onsemi	40 V	500 mA	510 mV @ 500 mA	20 µA @ 40 V	SOD-123	Active	Cut Tape (CT) & Digi-Reel®
STPS0540Z	STMicroelectronics	40 V	500 mA	500 mV @ 500 mA	40 µA @ 40 V	SOD-123	Active	Cut Tape (CT) & Digi-Reel®
B0530W RHG	Taiwan Semiconductor Corporation	30 V	500 mA	430 mV @ 500 mA	130 µA @ 30 V	SOD-123	Active	Tape & Reel (TR)
B0540W-7-F	Diodes Incorporated	40 V	500 mA	510 mV @ 500 mA	20 µA @ 40 V	SOD-123	Active	Cut Tape (CT) & Digi-Reel®
BAS3010A03WE6327HTSA1	Infineon Technologies	30 V	1 A	470 mV @ 1 A	200 µA @ 30 V	SOD-323	Active	Cut Tape (CT) & Digi-Reel®
CMHSH-3 BK PBFREE	Central Semiconductor Corp	30 V	200 mA	1 V @ 100 mA	2 µA @ 25 V	SOD-123	Active	Bulk

Engineering Selection Recommendations

Primary Recommendation - Parametric Equivalent: MBR0530T1G (onsemi) is the direct active equivalent to the obsolete MBR0530. This part maintains identical electrical specifications (30 V, 500 mA, 430 mV forward voltage, 130 µA reverse leakage) and SOD-123 package. The part is in active production status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Selection of MBR0530T1G requires no circuit redesign.

Alternative Parametric Equivalent: MBR0530T3G (onsemi) and STPS0530Z (STMicroelectronics) provide identical electrical performance to MBR0530T1G. MBR0530T3G is available in Cut Tape and Digi-Reel formats. STPS0530Z is available from STMicroelectronics with extended operating temperature range (-40°C to 150°C) compared to the original specification (-65°C to 125°C).

Automotive-Grade Alternative: NRVB0530T1G (onsemi) matches all electrical parameters of the MBR0530 and includes AEC-Q101 automotive qualification. This part is suitable for applications requiring automotive-grade components and is available in Tape & Reel packaging.

Higher Voltage Substitutes: MBR0540T1G (onsemi), STPS0540Z (STMicroelectronics), and B0540W-7-F (Diodes Incorporated) provide 40 V reverse voltage rating with 500 mA current capacity. These parts are suitable for applications where increased voltage margin is beneficial. Forward voltage increases to 510 mV (MBR0540T1G, B0540W-7-F) or 500 mV (STPS0540Z), and reverse leakage decreases to 20 µA or 40 µA respectively. These substitutes are compatible with SOD-123 package footprints.

Alternative Manufacturer Options: B0530W RHG (Taiwan Semiconductor Corporation) provides identical 30 V / 500 mA specifications with SOD-123 package. This part is available in Tape & Reel format and maintains ROHS3 compliance.

Not Recommended for Direct Substitution: BAS3010A03WE6327HTSA1 (Infineon) uses SOD-323 package (different footprint) and 1 A current rating, requiring circuit board redesign. CMHSH-3 BK PBFREE (Central Semiconductor) is rated for 200 mA current, below the 500 mA requirement of the original specification.

Frequently Asked Questions (FAQ)

Q: Can MBR0530T1G be used as a direct replacement for the obsolete MBR0530?

A: Yes. MBR0530T1G is a parametric equivalent with identical electrical specifications (30 V reverse voltage, 500 mA current, 430 mV forward voltage, 130 µA reverse leakage) and SOD-123 package. No circuit modifications are required. The primary difference is product status (Active vs. Obsolete) and packaging format availability.

Q: What is the difference between MBR0530T1G, MBR0530T3G, and NRVB0530T1G?

A: All three parts are onsemi products with identical electrical specifications. MBR0530T1G and MBR0530T3G differ in packaging format (both available in Cut Tape and Digi-Reel). NRVB0530T1G includes AEC-Q101 automotive qualification and is available in Tape & Reel format. Selection depends on packaging requirements and whether automotive qualification is needed.

Q: Can I use MBR0540T1G instead of MBR0530?

A: MBR0540T1G is a higher voltage substitute (40 V vs. 30 V) with identical 500 mA current rating and SOD-123 package. The forward voltage increases from 430 mV to 510 mV, and reverse leakage decreases from 130 µA to 20 µA. This substitution is suitable for applications where the higher voltage rating does not create design conflicts and the increased forward voltage is acceptable.

Q: Why is STPS0530Z from STMicroelectronics listed as an alternative?

A: STPS0530Z maintains all critical electrical parameters of the MBR0530 (30 V, 500 mA, 430 mV forward voltage, 130 µA reverse leakage) and uses the same SOD-123 package. The part is from a different manufacturer (STMicroelectronics) and offers extended operating temperature range (-40°C to 150°C). Selection depends on supplier availability and design temperature requirements.

Q: Is BAS3010A03WE6327HTSA1 a suitable substitute?

A: No. Although BAS3010A03WE6327HTSA1 maintains the 30 V voltage rating, it uses a different package (SOD-323 instead of SOD-123), has a higher current rating (1 A vs. 500 mA), and exhibits different electrical characteristics (470 mV forward voltage, 200 µA reverse leakage). This part requires circuit board redesign and is not a direct substitute.

Q: What does "parametric equivalent" mean in the context of these substitutes?

A: A parametric equivalent maintains all critical electrical specifications (reverse voltage, current rating, forward voltage, reverse leakage, speed characteristics) and uses the same package type. Parametric equivalents can be substituted without circuit modifications. Differences may exist only in packaging format (Cut Tape, Digi-Reel, Tape & Reel) or product status (Active vs. Obsolete).

Q: Are all listed substitutes ROHS3 compliant?

A: Yes. All substitute parts listed in this reference are ROHS3 compliant and have REACH Unaffected status, matching the compliance profile of the original MBR0530.

Q: What is the significance of the SOD-123 package specification?

A: SOD-123 is a surface mount package with a specific footprint and pin configuration. All primary substitutes (MBR0530T1G, MBR0530T3G, NRVB0530T1G, STPS0530Z, MBR0540T1G, STPS0540Z, B0530W RHG, B0540W-7-F) use SOD-123 packaging, ensuring mechanical and electrical compatibility with existing circuit board designs. BAS3010A03WE6327HTSA1 uses SOD-323 package and requires board redesign.

Q: Can I mix different manufacturers' parts in the same design?

A: Yes. All listed parametric equivalents maintain identical electrical specifications and SOD-123 package compatibility. Mixing manufacturers (onsemi, STMicroelectronics, Taiwan Semiconductor Corporation, Diodes Incorporated) is acceptable from an electrical and mechanical standpoint. Verify supplier availability and lead times for your specific procurement requirements.

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