SM5818PL-TP Equivalent & Substitute Parts

Part Overview

The SM5818PL-TP is a Schottky rectifier diode rated for 30 V DC reverse voltage and 1 A average rectified current in a SOD-123FL surface mount package. Manufactured by Micro Commercial Co, this component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary for ongoing maintenance, repair, and legacy system support where the original component is no longer available or procurement is limited.

Key Parameters

Parameter	Value	Unit
Technology	Schottky	—
Voltage - DC Reverse (Vr) (Max)	30	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	560 mV @ 1 A	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Current - Reverse Leakage @ Vr	100 µA @ 30 V	—
Mounting Type	Surface Mount	—
Package / Case	SOD-123F	—
Operating Temperature - Junction	-65°C to 125°C	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the SM5818PL-TP is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Technology: Schottky
Voltage - DC Reverse (Vr) (Max): 30 V
Current - Average Rectified (Io): 1 A
Mounting Type: Surface Mount
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
RoHS Status: ROHS3 Compliant

Package Compatibility: The SM5818PL-TP uses SOD-123FL package. Substitutes in SOD-123F and SOD-123FL packages are electrically compatible. The SOD-123 variant (without the "F" designation) represents a different package footprint and is not a direct substitute without PCB layout modification.

Acceptable Variations: Forward voltage (Vf) and reverse leakage current (Ir) may vary within the specified ranges for each part number without affecting circuit functionality, provided the application design accounts for these tolerances. Operating temperature range may differ; substitutes with narrower ranges (-55°C to 125°C versus -65°C to 125°C) are acceptable for applications not requiring the full -65°C minimum.

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	Ir @ Vr	Package	Product Status	Temp Range
SM5818PL-TP	Micro Commercial Co	30 V	1 A	560 mV @ 1 A	100 µA @ 30 V	SOD-123F	Not For New Designs	-65°C to 125°C
MBR130LSFT1G	onsemi	30 V	1 A	380 mV @ 1 A	1 mA @ 30 V	SOD-123F	Active	-55°C to 125°C
MBR130T1G	onsemi	30 V	1 A	450 mV @ 700 mA	60 µA @ 30 V	SOD-123	Active	-65°C to 125°C
MBRM130LT1G	onsemi	30 V	1 A	380 mV @ 1 A	410 µA @ 30 V	DO-216AA	Active	-55°C to 125°C
NRVB130LSFT1G	onsemi	30 V	1 A	380 mV @ 1 A	1 mA @ 30 V	SOD-123F	Active	-55°C to 125°C
PMEG3010BER,115	Nexperia USA Inc.	30 V	1 A	450 mV @ 1 A	50 µA @ 30 V	SOD-123W	Active	–
PMEG3010EH,115	Nexperia USA Inc.	30 V	1 A	560 mV @ 1 A	150 µA @ 30 V	SOD-123F	Active	–
PMEG3010ER,115	Nexperia USA Inc.	30 V	1 A	360 mV @ 1 A	1.5 mA @ 30 V	SOD-123W	Active	–

Engineering Selection Recommendations

Direct Package-Compatible Substitutes (SOD-123F):

MBR130LSFT1G, NRVB130LSFT1G, and PMEG3010EH,115 are direct footprint replacements for the SM5818PL-TP. All three maintain the SOD-123F package geometry and meet the mandatory electrical parameters. MBR130LSFT1G and NRVB130LSFT1G are manufactured by onsemi with Active product status and high inventory availability. PMEG3010EH,115 is manufactured by Nexperia USA Inc. and includes AEC-Q100 automotive qualification, suitable for applications requiring automotive-grade reliability.

Alternative Package Substitutes:

MBR130T1G uses SOD-123 package (different footprint) and requires PCB layout verification before implementation. MBRM130LT1G uses DO-216AA (Powermite) package and is not a direct footprint replacement. PMEG3010BER,115 and PMEG3010ER,115 use SOD-123W package and require PCB layout modification.

Compliance and Availability:

All substitute parts listed are ROHS3 compliant and have MSL rating of 1 (Unlimited). MBR130LSFT1G and MBR130T1G offer the highest inventory levels (23,400 and 215,300 units respectively). NRVB130LSFT1G includes AEC-Q101 automotive qualification. Selection should prioritize parts with Active product status to ensure long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can MBR130T1G be used as a direct replacement for SM5818PL-TP?

A: MBR130T1G meets all electrical specifications but uses SOD-123 package instead of SOD-123F. Direct PCB substitution is not possible without layout modification. Verify PCB footprint compatibility before selection.

Q: What is the difference between SOD-123F and SOD-123FL packages?

A: SOD-123FL is the tape and reel packaging format of the SOD-123F component. The electrical and mechanical specifications are identical; the designation difference reflects packaging and delivery method only.

Q: Are PMEG3010 series parts suitable replacements?

A: PMEG3010BER,115, PMEG3010EH,115, and PMEG3010ER,115 meet the 30 V, 1 A electrical requirements. PMEG3010BER,115 and PMEG3010ER,115 use SOD-123W package and require PCB layout verification. PMEG3010EH,115 uses SOD-123F package and is a direct footprint replacement.

Q: Does operating temperature range affect substitution compatibility?

A: The SM5818PL-TP operates from -65°C to 125°C. Substitutes with -55°C to 125°C range are acceptable for applications not requiring operation below -55°C. Verify application temperature requirements before selection.

Q: Why is MBRM130LT1G listed as a substitute if it uses a different package?

A: MBRM130LT1G meets all electrical specifications and is electrically equivalent. However, the DO-216AA (Powermite) package is mechanically different from SOD-123F and requires PCB layout modification. It is listed as an alternative for applications where package size or thermal characteristics are advantageous.

Q: What is the significance of AEC-Q101 and AEC-Q100 qualifications?

A: AEC-Q101 (NRVB130LSFT1G) and AEC-Q100 (PMEG3010EH,115) indicate automotive-grade qualification. These parts are suitable for automotive and high-reliability applications. Non-qualified parts are suitable for general industrial and consumer applications.

Q: Can forward voltage (Vf) variation between parts affect circuit performance?

A: Forward voltage varies across the substitute parts (360 mV to 560 mV @ 1 A). Circuit designs must account for this tolerance range. Applications with tight voltage regulation requirements should verify compatibility with the specific Vf of the selected substitute.

Q: Is NRVB230LSFT1G a suitable substitute?

A: NRVB230LSFT1G is rated for 2 A average rectified current, exceeding the 1 A requirement of SM5818PL-TP. While electrically compatible in terms of voltage and package, it is over-specified for 1 A applications. Use only if higher current capacity is required by the application.

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