MMBD4148-7-G Equivalent & Substitute Parts

Part Overview

The MMBD4148-7-G is a general-purpose diode manufactured by Diodes Incorporated in SOT-23 surface mount packaging. This part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Equivalent and substitute parts maintain functional compatibility through matching electrical characteristics and mechanical form factors while offering active product status and continued availability.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	75 V
Current - Average Rectified (Io)	300 mA
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 150 mA
Package / Case	TO-236-3, SC-59, SOT-23-3
Mounting Type	Surface Mount
Operating Temperature - Junction	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the MMBD4148-7-G are identified based on electrical parameter equivalence and mechanical compatibility. The primary substitution criteria are:

Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 75 V
Voltage - Forward (Vf) (Max) @ If: 1.25 V @ 150 mA
Package / Case: SOT-23-3 (TO-236-3, SC-59)
Mounting Type: Surface Mount

Compliance & Environmental:

RoHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
REACH Status: REACH Unaffected

Substitutes are grouped into two categories: direct manufacturer equivalents from Diodes Incorporated and manufacturer-recommended alternatives from qualified suppliers. Current-rated substitutes may vary within acceptable operating ranges for the application.

Parameter Comparison

Parameter	MMBD4148-7-G	MMBD4148-7-F	BAS116LT1G
Manufacturer	Diodes Incorporated	Diodes Incorporated	onsemi
Product Status	Obsolete	Active	Active
Voltage - DC Reverse (Vr) (Max)	75 V	75 V	75 V
Current - Average Rectified (Io)	300 mA	300 mA	200 mA
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 150 mA	1.25 V @ 150 mA	1.25 V @ 150 mA
Reverse Recovery Time (trr)	Not specified	4 ns	3 µs
Current - Reverse Leakage @ Vr	Not specified	1 µA @ 75 V	5 nA @ 75 V
Capacitance @ Vr, F	Not specified	2 pF @ 0V, 1MHz	2 pF @ 0V, 1MHz
Package / Case	SOT-23-3	SOT-23-3	SOT-23-3 (TO-236)
Operating Temperature - Junction	-65°C ~ 150°C	-65°C ~ 150°C	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

MMBD4148-7-F (Diodes Incorporated): This part is the direct equivalent from the original manufacturer with active product status. It maintains identical electrical specifications including 75 V reverse voltage, 300 mA average rectified current, and 1.25 V forward voltage at 150 mA. Operating temperature range matches the obsolete part (-65°C ~ 150°C). This substitute is recommended for applications requiring maximum parameter compatibility and continuity with the original design.

BAS116LT1G (onsemi): This part is a manufacturer-recommended alternative with active product status. It maintains the same reverse voltage (75 V) and forward voltage characteristics (1.25 V @ 150 mA). The average rectified current is rated at 200 mA, which is lower than the original 300 mA specification. The operating temperature range is -55°C ~ 150°C, providing a reduced lower temperature limit. This substitute is suitable for applications where the 200 mA current rating is sufficient and the -55°C minimum temperature meets system requirements. All parts maintain ROHS3 compliance, MSL Level 1, and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can MMBD4148-7-F be used as a direct replacement for MMBD4148-7-G?

A: Yes. The MMBD4148-7-F maintains identical electrical specifications (75 V reverse voltage, 300 mA average rectified current, 1.25 V forward voltage) and operating temperature range (-65°C ~ 150°C). Both parts use SOT-23-3 packaging. The primary difference is product status: MMBD4148-7-F is active while MMBD4148-7-G is obsolete.

Q: What is the difference between MMBD4148-7-F and BAS116LT1G?

A: Both parts share 75 V reverse voltage and 1.25 V forward voltage specifications. The key differences are: (1) average rectified current is 300 mA for MMBD4148-7-F versus 200 mA for BAS116LT1G; (2) operating temperature range is -65°C ~ 150°C for MMBD4148-7-F versus -55°C ~ 150°C for BAS116LT1G; (3) reverse recovery time is 4 ns for MMBD4148-7-F versus 3 µs for BAS116LT1G; (4) manufacturers differ (Diodes Incorporated versus onsemi).

Q: Is BAS116LT1G suitable for applications requiring 300 mA current?

A: No. The BAS116LT1G is rated for 200 mA average rectified current. Applications requiring 300 mA operation must use MMBD4148-7-F or equivalent 300 mA-rated parts.

Q: Are all substitute parts RoHS compliant?

A: Yes. MMBD4148-7-F and BAS116LT1G are both ROHS3 compliant with MSL Level 1 (unlimited moisture sensitivity) and REACH unaffected status, matching the compliance profile of the obsolete MMBD4148-7-G.

Q: What packaging options are available for these substitutes?

A: MMBD4148-7-F is available in Cut Tape (CT) and Digi-Reel® packaging. BAS116LT1G is available in Tape & Reel (TR) packaging. All parts use SOT-23-3 (TO-236-3, SC-59) surface mount package.

Q: Does the lower operating temperature minimum of BAS116LT1G affect compatibility?

A: The BAS116LT1G operating temperature range is -55°C ~ 150°C compared to -65°C ~ 150°C for MMBD4148-7-F. If the application requires operation below -55°C, BAS116LT1G is not suitable. For applications with minimum operating temperatures at or above -55°C, this difference does not affect compatibility.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message