MMBD914-7 Equivalent & Substitute Parts

Part Overview

The MMBD914-7 is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 75 V DC reverse voltage and 300 mA average rectified current in a surface-mount SOT-23-3 package. This part is classified as discontinued at DiGi Electronics, with RoHS non-compliant status. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and meet current regulatory compliance requirements including RoHS3 standards.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	75	V
Current - Average Rectified (Io)	300	mA
Voltage - Forward (Vf) (Max) @ If	1.25 V @ 150 mA	V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	4	ns
Current - Reverse Leakage @ Vr	1	µA @ 75 V
Capacitance @ Vr, F	2	pF @ 0V, 1MHz
Mounting Type	Surface Mount	—
Package / Case	TO-236-3, SC-59, SOT-23-3	—
Operating Temperature - Junction	-65 to 150	°C
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitution of the MMBD914-7 is determined by the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 75 V minimum
Current - Average Rectified (Io): 300 mA minimum
Voltage - Forward (Vf) (Max) @ If: 1.25 V @ 150 mA maximum
Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
Reverse Recovery Time (trr): 4 ns maximum
Package / Case: SOT-23-3 (TO-236-3, SC-59)
Mounting Type: Surface Mount

Parametric Equivalent Parts meet all primary substitution criteria and are direct replacements with identical electrical performance and package specifications.

Manufacturer Recommended Parts meet the primary substitution criteria but may have minor variations in secondary parameters such as reverse leakage current, capacitance, or operating temperature range. These parts are functionally compatible but require verification of application-specific requirements.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [mA]	Vf (Max) @ If [V]	trr [ns]	Speed	Package	Product Status	RoHS Status
MMBD914-7	Diodes Incorporated	75	300	1.25 @ 150 mA	4	Fast Recovery ≤ 500ns, > 200mA	SOT-23-3	Discontinued	RoHS non-compliant
BAS16-7-F	Diodes Incorporated	75	300	1.25 @ 150 mA	4	Fast Recovery ≤ 500ns, > 200mA	SOT-23-3	Active	ROHS3 Compliant
BAS16Q-13-F	Diodes Incorporated	75	300	1.25 @ 150 mA	4	Fast Recovery ≤ 500ns, > 200mA	SOT-23-3	Active	ROHS3 Compliant
BAS16Q-7-F	Diodes Incorporated	75	300	1.25 @ 150 mA	4	Fast Recovery ≤ 500ns, > 200mA	SOT-23-3	Active	ROHS3 Compliant
MMBD4148-7-F	Diodes Incorporated	75	300	1.25 @ 150 mA	4	Fast Recovery ≤ 500ns, > 200mA	SOT-23-3	Active	ROHS3 Compliant
MMBD914-7-F	Diodes Incorporated	75	300	1.25 @ 150 mA	4	Fast Recovery ≤ 500ns, > 200mA	SOT-23-3	Active	ROHS3 Compliant
BAS116LT1G	onsemi	75	200	1.25 @ 150 mA	3000	Small Signal ≤ 200mA, Any Speed	SOT-23-3	Active	ROHS3 Compliant
BAS16LT1G	onsemi	100	200	1.25 @ 150 mA	6	Small Signal ≤ 200mA, Any Speed	SOT-23-3	Active	ROHS3 Compliant
BAS16LT3G	onsemi	100	200	1.25 @ 150 mA	6	Small Signal ≤ 200mA, Any Speed	SOT-23-3	Active	ROHS3 Compliant
MMBD914-TP	Micro Commercial Co	75	150	855 mV @ 10 mA	4	Small Signal ≤ 200mA, Any Speed	SOT-23-3	Active	ROHS3 Compliant
MMBD914LT1G	onsemi	100	200	1 V @ 10 mA	4	Small Signal ≤ 200mA, Any Speed	SOT-23-3	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Parametric Equivalents (Recommended Primary Substitutes):

The following parts are parametric equivalents that meet all electrical and mechanical specifications of the MMBD914-7:

BAS16-7-F (Diodes Incorporated): Active product status with ROHS3 compliance. Identical electrical specifications and SOT-23-3 package. Available in Cut Tape and Digi-Reel packaging.
BAS16Q-7-F (Diodes Incorporated): Active product status with ROHS3 compliance and AEC-Q101 automotive qualification. Identical electrical specifications and SOT-23-3 package.
MMBD914-7-F (Diodes Incorporated): Active product status with ROHS3 compliance. Identical electrical specifications and SOT-23-3 package. Same base part number as original with updated compliance status.
MMBD4148-7-F (Diodes Incorporated): Active product status with ROHS3 compliance. Identical electrical specifications and SOT-23-3 package.

Automotive-Qualified Substitute:

BAS16Q-13-F (Diodes Incorporated): Meets all parametric requirements with AEC-Q101 automotive qualification and ROHS3 compliance. Suitable for applications requiring automotive-grade components.

Manufacturer Recommended Alternatives (Limited Current Rating):

The following parts are manufacturer-recommended substitutes with reduced average rectified current ratings:

BAS116LT1G (onsemi): 75 V, 200 mA (reduced from 300 mA). Small signal diode classification. ROHS3 compliant.
MMBD914-TP (Micro Commercial Co): 75 V, 150 mA (reduced from 300 mA). Small signal diode classification. ROHS3 compliant.

Manufacturer Recommended Alternatives (Increased Voltage Rating):

The following parts are manufacturer-recommended substitutes with increased reverse voltage ratings:

BAS16LT1G (onsemi): 100 V (increased from 75 V), 200 mA (reduced from 300 mA). Small signal diode classification. ROHS3 compliant.
BAS16LT3G (onsemi): 100 V (increased from 75 V), 200 mA (reduced from 300 mA). Small signal diode classification. ROHS3 compliant.
MMBD914LT1G (onsemi): 100 V (increased from 75 V), 200 mA (reduced from 300 mA). Small signal diode classification. ROHS3 compliant.

All recommended substitutes maintain SOT-23-3 surface-mount package compatibility and operate within the -55°C to 150°C junction temperature range (or -65°C to 150°C for Diodes Incorporated parts).

Frequently Asked Questions (FAQ)

Q: Can BAS16-7-F be used as a direct replacement for MMBD914-7?

A: Yes. BAS16-7-F is a parametric equivalent with identical voltage (75 V), current (300 mA), forward voltage drop (1.25 V @ 150 mA), recovery time (4 ns), and SOT-23-3 package. The primary difference is product status (active vs. discontinued) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between BAS16Q-7-F and BAS16-7-F?

A: Both parts are parametric equivalents with identical electrical specifications and SOT-23-3 packaging. BAS16Q-7-F includes AEC-Q101 automotive qualification, making it suitable for automotive applications requiring qualification documentation.

Q: Can I use BAS116LT1G as a substitute if my application requires 300 mA?

A: No. BAS116LT1G is rated for 200 mA average rectified current, which is below the 300 mA specification of MMBD914-7. Using this part in a 300 mA application would exceed its current rating and may result in device failure or reduced reliability.

Q: Why do some substitutes have 100 V ratings instead of 75 V?

A: Parts such as BAS16LT1G and MMBD914LT1G have increased reverse voltage ratings (100 V vs. 75 V). These parts are functionally compatible in circuits designed for 75 V operation, as they can withstand higher reverse voltages. However, they typically have reduced current ratings (200 mA vs. 300 mA).

Q: Are all recommended substitutes RoHS3 compliant?

A: Yes. All parametric equivalents and manufacturer-recommended alternatives listed are ROHS3 compliant, addressing the RoHS non-compliance status of the original MMBD914-7.

Q: What is the difference between Fast Recovery and Small Signal diode classifications?

A: The MMBD914-7 is classified as a Fast Recovery diode with a 4 ns reverse recovery time and is rated for currents greater than 200 mA. Small Signal diodes are classified for currents of 200 mA or less and typically have longer reverse recovery times (measured in microseconds or nanoseconds). Fast Recovery diodes are optimized for switching applications requiring rapid turn-off characteristics.

Q: Can MMBD914-TP be used in place of MMBD914-7?

A: MMBD914-TP is a manufacturer-recommended alternative with the same 75 V reverse voltage rating and 4 ns recovery time. However, it is rated for only 150 mA average rectified current, compared to 300 mA for MMBD914-7. This part is suitable only for applications requiring 150 mA or less.

Q: Are there packaging differences between the substitute parts?

A: All recommended substitutes use the SOT-23-3 (TO-236-3, SC-59) surface-mount package, ensuring mechanical and electrical compatibility. Packaging options (Cut Tape, Tape & Reel, Digi-Reel) vary by supplier and part number but do not affect circuit performance.

Q: Which substitute should I select for a new design?

A: For new designs, select from the parametric equivalents (BAS16-7-F, BAS16Q-7-F, MMBD914-7-F, or MMBD4148-7-F) to maintain identical electrical performance. If automotive qualification is required, select BAS16Q-7-F or BAS16Q-13-F. All are active products with ROHS3 compliance and adequate supply availability.

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