MBR120ESFT3 Schottky Diode Equivalent & Substitute Parts

Part Overview

The MBR120ESFT3 is a Schottky rectifier diode manufactured by onsemi, rated for 20V DC reverse voltage and 1A average rectified current in a surface mount SOD-123FL package. This part is classified as obsolete, which necessitates identification of equivalent and substitute components for ongoing design support and procurement continuity. Active alternatives with identical or compatible electrical and mechanical specifications are available from onsemi and other manufacturers.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	20	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	530 mV @ 1 A	mV
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	ns
Current - Reverse Leakage @ Vr	10	µA @ 20 V
Technology	Schottky	—
Mounting Type	Surface Mount	—
Package / Case	SOD-123F	—
Operating Temperature - Junction	-65 to 150	°C

Substitute Part Grouping Explanation

Substitution of the MBR120ESFT3 is determined by strict equivalence in the following electrical and mechanical parameters:

Critical Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 20V
Current - Average Rectified (Io): 1A
Technology: Schottky
Package / Case: SOD-123F
Mounting Type: Surface Mount
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)

Acceptable Variation Parameters:

Voltage - Forward (Vf) (Max) @ If: Within typical Schottky diode range (340–530 mV @ 1A)
Current - Reverse Leakage @ Vr: Acceptable within 1–200 µA @ 20V
Operating Temperature - Junction: -40°C to 150°C maximum

Substitute parts are grouped into two categories:

Direct Equivalents (Identical Electrical & Mechanical Specifications): Parts matching all critical parameters with minimal variation in forward voltage and leakage current.

Parametric Equivalents (Compatible Electrical Performance, Different Package Variants): Parts with identical electrical ratings but alternative package configurations (SOD-123W) or different supplier packaging formats (Cut Tape vs. Tape & Reel).

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [mV]	Ir @ Vr [µA]	Package	Product Status	RoHS Status
MBR120ESFT3	onsemi	20	1	530 @ 1A	10 @ 20V	SOD-123FL	Obsolete	Non-compliant
MBR120ESFT3G	onsemi	20	1	530 @ 1A	10 @ 20V	SOD-123FL	Active	ROHS3 Compliant
MBR120ESFT1G	onsemi	20	1	530 @ 1A	10 @ 20V	SOD-123FL	Active	ROHS3 Compliant
CRS06(TE85L,Q,M)	Toshiba Semiconductor and Storage	20	1	360 @ 1A	1000 @ 20V	SOD-123F	Active	ROHS3 Compliant
PMEG2005EH,115	Nexperia USA Inc.	20	0.5	390 @ 0.5A	200 @ 20V	SOD-123F	Active	ROHS3 Compliant
PMEG2010AEH,115	Nexperia USA Inc.	20	1	430 @ 1A	200 @ 20V	SOD-123F	Active	ROHS3 Compliant
PMEG2010BER,115	Nexperia USA Inc.	20	1	450 @ 1A	50 @ 20V	SOD-123W	Active	ROHS3 Compliant
PMEG2010EH,115	Nexperia USA Inc.	20	1	500 @ 1A	200 @ 20V	SOD-123F	Active	ROHS3 Compliant
PMEG2010ER,115	Nexperia USA Inc.	20	1	340 @ 1A	1000 @ 20V	SOD-123W	Active	ROHS3 Compliant
PMEG2015EH,115	NXP Semiconductors	20	1.5	660 @ 1.5A	70 @ 20V	SOD-123F	Active	ROHS3 Compliant
PMEG2020EH,115	Nexperia USA Inc.	20	2	525 @ 2A	200 @ 20V	SOD-123F	Active	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: MBR120ESFT3G

MBR120ESFT3G is the direct active equivalent manufactured by onsemi. It provides identical electrical specifications (20V, 1A, 530 mV forward voltage) and mechanical compatibility (SOD-123FL package). The part is ROHS3 compliant and available in Tape & Reel packaging. This selection eliminates design re-qualification requirements and maintains supply chain consistency with the original manufacturer.

Secondary Recommendation: MBR120ESFT1G

MBR120ESFT1G offers identical electrical and mechanical specifications to MBR120ESFT3G with higher inventory availability (20,300 pcs). Packaging is supplied as Cut Tape & Digi-Reel®, suitable for automated assembly processes. ROHS3 compliance and active product status ensure long-term availability.

Alternative Recommendation: PMEG2010EH,115

PMEG2010EH,115 (Nexperia USA Inc.) provides 20V, 1A ratings with SOD-123F package compatibility. Forward voltage is 500 mV @ 1A, within acceptable operating range. AEC-Q100 automotive qualification is available. This part is suitable for applications requiring third-party sourcing or dual-source strategies.

Current-Rated Alternatives:

For applications requiring higher current capacity within the 20V rating:

PMEG2015EH,115: 1.5A rated (20V, SOD-123F)
PMEG2020EH,115: 2A rated (20V, SOD-123F, AEC-Q100 qualified)

These parts are electrically compatible for designs with margin in current requirements and provide enhanced reliability through higher current headroom.

Package Variant Alternatives:

PMEG2010BER,115 and PMEG2010ER,115 provide SOD-123W package options for designs requiring alternative footprints. Electrical ratings remain 20V, 1A with fast recovery characteristics.

Frequently Asked Questions (FAQ)

Q1: Can MBR120ESFT3G be used as a direct replacement for MBR120ESFT3?

Yes. MBR120ESFT3G is the active equivalent with identical electrical specifications (20V, 1A, 530 mV forward voltage) and mechanical compatibility (SOD-123FL package). The primary difference is product status (Active vs. Obsolete) and RoHS compliance (ROHS3 vs. Non-compliant). No design changes are required.

Q2: What is the difference between MBR120ESFT3G and MBR120ESFT1G?

Both parts are manufactured by onsemi with identical electrical and mechanical specifications. The difference is packaging format: MBR120ESFT3G is supplied in Tape & Reel (TR), while MBR120ESFT1G is supplied in Cut Tape (CT) & Digi-Reel®. MBR120ESFT1G has significantly higher inventory availability (20,300 pcs vs. 1,600 pcs).

Q3: Can PMEG2010EH,115 replace MBR120ESFT3 in all applications?

PMEG2010EH,115 is electrically compatible with identical 20V and 1A ratings. Forward voltage is 500 mV @ 1A (vs. 530 mV), which is within acceptable Schottky diode operating range. Package is SOD-123F (vs. SOD-123FL), which is mechanically compatible. AEC-Q100 automotive qualification provides additional reliability assurance. Substitution is valid for standard applications.

Q4: What is the significance of the SOD-123F vs. SOD-123FL package designation?

SOD-123F and SOD-123FL are both surface mount packages with identical electrical and thermal performance. The "L" suffix in SOD-123FL indicates a specific lead finish or supplier variant. Both packages are mechanically compatible on standard PCB footprints designed for SOD-123 geometry. Substitution between these variants does not require PCB redesign.

Q5: Are PMEG2015EH,115 and PMEG2020EH,115 suitable replacements for 1A applications?

Yes, with design margin consideration. PMEG2015EH,115 (1.5A) and PMEG2020EH,115 (2A) are rated for higher current than the 1A requirement of MBR120ESFT3. Both maintain 20V reverse voltage rating and fast recovery characteristics. These parts are suitable for applications where current headroom improves reliability. Forward voltage increases proportionally with rated current (660 mV @ 1.5A for PMEG2015EH,115; 525 mV @ 2A for PMEG2020EH,115).

Q6: What does RoHS3 compliance mean for this diode?

ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive 2011/65/EU requirements, restricting lead, cadmium, mercury, and other hazardous materials. MBR120ESFT3 is RoHS non-compliant (older manufacturing standard), while all active equivalents (MBR120ESFT3G, MBR120ESFT1G, PMEG series) are ROHS3 compliant. For new designs and regulated applications, ROHS3-compliant parts are required.

Q7: Can CRS06(TE85L,Q,M) be used as a substitute despite lower forward voltage?

CRS06(TE85L,Q,M) (Toshiba) meets the 20V, 1A electrical requirements with lower forward voltage (360 mV @ 1A vs. 530 mV). However, reverse leakage current is significantly higher (1 mA @ 20V vs. 10 µA). This part is suitable for applications where forward voltage efficiency is prioritized and reverse leakage is not a design constraint. Package is SOD-123F (compatible). Substitution requires application-specific validation.

Q8: What is the difference between Cut Tape and Tape & Reel packaging?

Cut Tape (CT) & Digi-Reel® packaging supplies components on individual tape segments suitable for manual or semi-automated assembly. Tape & Reel (TR) packaging supplies components on continuous reels optimized for high-speed automated pick-and-place assembly. Both formats contain identical components; packaging selection depends on assembly process requirements and volume.

Q9: Why is PMEG2005EH,115 listed as a substitute if it is rated for only 500 mA?

PMEG2005EH,115 is listed as a parametric alternative for applications where current requirement is 500 mA or less. It maintains 20V reverse voltage rating and fast recovery characteristics. This part is suitable for designs with lower current demands, providing cost optimization through lower-rated component selection. For full 1A applications, this part is not recommended.

Q10: Are all substitute parts qualified for automotive applications?

Automotive qualification (AEC-Q100) is explicitly provided for PMEG2010AEH,115, PMEG2010EH,115, and PMEG2020EH,115. Other parts (MBR120ESFT3G, MBR120ESFT1G, CRS06(TE85L,Q,M), PMEG2005EH,115, PMEG2010BER,115, PMEG2010ER,115, PMEG2015EH,115) do not list AEC-Q100 qualification in provided specifications. For automotive applications, select only AEC-Q100 qualified parts or verify qualification status with manufacturer documentation.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message