LL4004G L0G Equivalent & Substitute Parts Reference

Part Overview

The LL4004G L0G is a surface-mount general purpose rectifier diode from Taiwan Semiconductor Corporation, category Diodes, Rectifiers. It is rated for 400 V reverse voltage, 1A average rectified current, and offered in a MELF (DO-213AB) package. The device features standard recovery characteristics, a maximum forward voltage of 1.1 V, and low reverse leakage. The product is currently classified as Obsolete, making it necessary to identify alternative models to maintain supply chain continuity in designs requiring these electrical and mechanical specifications.

Substiute Parts

LL4004G L0G

Taiwan Semiconductor CorporationIn Stock: 1103LL4004G L0G Datasheet

Current PartRFQ

S1G

Diotec SemiconductorIn Stock: 29526S1G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LL4004G L0G are grouped strictly based on electrical and mechanical parameters: maximum reverse voltage (400 V), average rectified current (1A), standard recovery speed, surface-mount mounting, and RoHS3 compliance. Package format (surface-mount-compatible) and junction temperature range are also matched. Only diodes complying with these parameters are suitable as substitutes.

Key substitution parameters:

• Voltage - DC Reverse (Vr) (Max)
• Current - Average Rectified (Io)
• Technology (Standard recovery)
• Mounting Type (Surface Mount)
• RoHS3 compliance
• Package category (surface-mount compatible case)
• Operating Temperature - Junction

Parameter Comparison

Engineering Selection Recommendations

The LL4004G L0G diode is obsolete and classified as ROHS3 compliant. Substitute diodes within this group, such as the S1G (Diotec Semiconductor), also offer ROHS3 compliance, the same ECCN code (EAR99), and share unlimited moisture sensitivity (MSL 1). These compliance attributes and certification statuses confirm eligibility for use as direct substitutes in applications where regulatory conformity is required. Only parts with these statuses are considered valid substitutes within this reference.

Frequently Asked Questions (FAQ)

What criteria determine substitution for the LL4004G L0G?

Substitution is determined strictly by key electrical parameters (reverse voltage, average rectified current, recovery type), mechanical attributes (mounting type, package suitability), and regulatory compliance (RoHS3, ECCN, MSL).

Are all surface-mount rectifiers suitable substitutes?

Only those with matching or exceeding the original component’s electrical ratings, recovery speed, and compliance certifications are suitable. Package equivalency in terms of mounting compatibility must also be upheld.

Does the package difference (MELF vs. SMA) affect substitution?

Both MELF (DO-213AB) and SMA (DO-214AC) are surface-mount types. The form factor must be confirmed for mechanical fit in the application, but electrical substitution is validated strictly by the input parameters provided.

Is RoHS3 compliance required in all substitutions?

All substitutes listed hold ROHS3 compliance according to the input. Substitution is considered valid only if this compliance status is present.

What is the effect of a difference in reverse leakage or forward voltage values?

The substitute S1G lists equal or better (lower) reverse leakage at the specified voltage, and forward voltage at the specified current is equal. Substitution is strictly based on the provided data.

Are obsolete parts suitable as substitutes?

Only non-obsolete (active) substitute parts are listed when supplied in the input, unless otherwise specified. This ensures ongoing supply chain viability.