LL4154-M-08 Equivalent & Substitute Parts

Part Overview

The LL4154-M-08 is a general-purpose fast recovery rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount diode operates at 35 V DC reverse voltage with 300 mA average rectified current and features a 4 ns reverse recovery time, making it suitable for high-speed switching applications. The device is packaged in SOD-80 MiniMELF format and carries automotive-grade qualification under AEC-Q101 standard.

The part is currently in active production status with 1076 pieces available in inventory. Substitute parts are identified to provide alternative sourcing options when the primary part number becomes unavailable or when inventory levels require diversification across qualified equivalent devices.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	35	V
Current - Average Rectified (Io)	300	mA
Voltage - Forward (Vf) (Max) @ If	1 V @ 30 mA	V
Reverse Recovery Time (trr)	4	ns
Current - Reverse Leakage @ Vr	100 nA @ 25 V	nA
Capacitance @ Vr, F	4 pF @ 0V, 1MHz	pF
Operating Temperature - Junction (Max)	175	°C
Package / Case	DO-213AC, MINI-MELF, SOD-80	—
Mounting Type	Surface Mount	—
Grade	Automotive	—
Qualification	AEC-Q101	—

Substitute Part Grouping Explanation

Substitute parts for the LL4154-M-08 are qualified based on electrical and mechanical parameter equivalence. The substitution logic is determined by the following critical parameters:

Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 35 V
Current - Average Rectified (Io): 300 mA
Voltage - Forward (Vf) (Max) @ If: 1 V @ 30 mA
Reverse Recovery Time (trr): 4 ns
Current - Reverse Leakage @ Vr: 100 nA @ 25 V
Capacitance @ Vr, F: 4 pF @ 0V, 1MHz

Mechanical Parameters:

Package / Case: DO-213AC, MINI-MELF, SOD-80
Mounting Type: Surface Mount
Operating Temperature - Junction (Max): 175°C

Compliance Parameters:

Grade: Automotive
Qualification: AEC-Q101
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)

Substitute parts must match all electrical specifications, maintain identical package and mounting characteristics, and retain automotive-grade qualification with AEC-Q101 certification to ensure functional and mechanical interchangeability in circuit applications.

Parameter Comparison

Parameter	LL4154-M-08	LL4154-GS08	Match
Voltage - DC Reverse (Vr) (Max)	35 V	35 V	✓
Current - Average Rectified (Io)	300 mA	300 mA	✓
Voltage - Forward (Vf) (Max) @ If	1 V @ 30 mA	1 V @ 30 mA	✓
Reverse Recovery Time (trr)	4 ns	4 ns	✓
Current - Reverse Leakage @ Vr	100 nA @ 25 V	100 nA @ 25 V	✓
Capacitance @ Vr, F	4 pF @ 0V, 1MHz	4 pF @ 0V, 1MHz	✓
Operating Temperature - Junction (Max)	175°C	175°C	✓
Package / Case	DO-213AC, MINI-MELF, SOD-80	DO-213AC, MINI-MELF, SOD-80	✓
Mounting Type	Surface Mount	Surface Mount	✓
Grade	Automotive	Automotive	✓
Qualification	AEC-Q101	AEC-Q101	✓
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	✓
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	✓

Engineering Selection Recommendations

The LL4154-GS08 is a direct parametric equivalent to the LL4154-M-08. Both devices share identical electrical specifications, mechanical packaging, and automotive-grade certifications. Selection between these part numbers is based on inventory availability and supply chain considerations rather than functional differences.

Both parts maintain active production status and carry AEC-Q101 automotive qualification, ensuring compliance with automotive reliability standards. Both devices are ROHS3 compliant and carry unlimited moisture sensitivity level (MSL 1), indicating no special handling requirements during storage or assembly.

The LL4154-GS08 currently maintains higher inventory levels (25756 pieces) compared to the LL4154-M-08 (1076 pieces), making it a viable alternative for high-volume procurement or extended lead-time mitigation strategies.

Frequently Asked Questions (FAQ)

Q: Can the LL4154-GS08 be used as a direct replacement for the LL4154-M-08?

A: Yes. The LL4154-GS08 is a parametric equivalent with identical electrical characteristics, reverse recovery time, forward voltage drop, and reverse leakage specifications. Both devices are packaged in SOD-80 MiniMELF format and carry AEC-Q101 automotive qualification.

Q: Are there any differences in package or mounting between these parts?

A: No. Both the LL4154-M-08 and LL4154-GS08 use the DO-213AC MINI-MELF SOD-80 package with surface mount mounting type. PCB footprints and assembly processes are identical.

Q: Do both parts meet automotive compliance requirements?

A: Yes. Both parts carry automotive-grade classification and AEC-Q101 qualification. Both are ROHS3 compliant and have MSL 1 (unlimited) moisture sensitivity level.

Q: What is the primary reason to consider the LL4154-GS08 as an alternative?

A: The LL4154-GS08 is selected for supply chain diversification and inventory availability. With 25756 pieces in stock compared to 1076 pieces for the LL4154-M-08, the LL4154-GS08 provides improved availability for high-volume applications or extended procurement windows.

Q: Are the electrical performance characteristics identical between these parts?

A: Yes. Both parts specify 35 V maximum reverse voltage, 300 mA average rectified current, 1 V maximum forward voltage at 30 mA, 4 ns reverse recovery time, 100 nA reverse leakage at 25 V, and 4 pF capacitance at 0V and 1 MHz.

Q: Can these parts be used interchangeably in circuit designs?

A: Yes. The LL4154-GS08 is a direct functional and mechanical equivalent. No circuit modifications, PCB layout changes, or design re-qualification are required when substituting between these part numbers.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message