1N4148W-E3-08 vs 1N4148W-TP

Cette comparaison détaillée des composants 1N4148W-E3-08 et 1N4148W-TP vous offre un aperçu précieux de leurs spécifications et caractéristiques clés. Nous abordons en détail les facteurs importants, notamment la conformité RoHS, le statut REACH, la série, le mode de montage, le type de boîtier et d'autres caractéristiques pertinentes. La présentation côte à côte des différences simplifie la sélection des composants et vous permet de choisir plus facilement la meilleure option pour votre application spécifique.

Technical review by ETEI Component Engineering Source: manufacturer documentation

Replacement verdict

Compatible functional replacement candidate

The 1N4148W-TP and 1N4148W-E3-08 are functionally equivalent small-signal switching diodes, both offering 100 V repetitive peak reverse voltage, 300 mA forward current, and SOD-123 surface-mount packaging. They are interchangeable in most circuit designs, with the primary distinction being manufacturer-specific part numbering and sourcing considerations.

Forward Current Rating High match
Reverse Voltage Rating High match
Package Type High match
Forward Voltage Drop High match

Review the critical differences →

Parts at a glance

Key differences

Rows are prioritized by design impact. Highlighted values require attention during substitution.

Key electrical and mechanical differences between the two devices

Parameter 1N4148W-TP 1N4148W-E3-08 Why it matters
Manufacturer Micro Commercial Co Vishay General Semiconductor Different manufacturers may have different quality systems, documentation, and second-source approval status.
Diode Type Standard switching diode Standard switching diode Both are small-signal switching diodes, so they serve the same basic circuit function.
Package / Case SOD-123 SOD-123 Identical package footprint allows direct drop-in replacement on the same PCB pad layout.
Mounting Type Surface mount Surface mount Both are SMD devices, compatible with the same assembly process.
Reverse Voltage (Vr) 100 V 100 V Determines the maximum reverse blocking voltage the diode can withstand in the application.
Forward Current (If) 150 mA 150 mA Sets the maximum continuous forward current the diode can safely conduct.
Forward Voltage (Vf) 1.25 V @ 100 mA 1.2 V @ 100 mA Affects power loss and voltage drop; slight differences can matter in low-voltage or precision circuits.
Reverse Recovery Time (trr) 4 ns 4 ns Determines switching speed; identical trr ensures equivalent high-frequency performance.
Operating Junction Temperature -55 °C to +150 °C -55 °C to +150 °C Defines the thermal operating window and suitability for harsh environments.
RoHS Compliance RoHS compliant RoHS compliant, halogen-free Environmental compliance affects regulatory acceptance and may differ in halogen-free requirements.

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Full specification comparison

Use manufacturer datasheets as the final authority.

Specification 1N4148W-E3-08 1N4148W-TP
Part Status Active Active
Diode Type Standard Standard
Voltage - DC Reverse (Vr) (Max) 75 V 100 V
Current - Average Rectified(Io) 150mA 150mA
Voltage - Forward (Vf) (Max) @ If 1.2 V @ 100 mA 1.25 V @ 150 mA
Speed Small Signal =< 200mA (Io), Any Speed Small Signal =< 200mA (Io), Any Speed
Reverse Recovery Time (trr) 4 ns 4 ns
Current - Reverse Leakage @ Vr 100 µA @ 100 V 1 µA @ 75 V
Capacitance @ Vr F 4pF @ 0V, 1MHz 2pF @ 0V, 1MHz
Mounting Type Surface Mount Surface Mount

Frequently asked questions

Are the 1N4148W-TP and 1N4148W-E3-08 electrically equivalent and interchangeable in a circuit?

Yes. Both the 1N4148W-TP (Micro Commercial Co) and the 1N4148W-E3-08 (Vishay Semiconductors) are surface-mount fast switching diodes that conform to the 1N4148W specification. They share the same key ratings, including a repetitive peak reverse voltage (VRRM) of 100 V, a forward current (IF) of 300 mA, a forward voltage (VF) of approximately 1.25 V at 150 mA, and a reverse recovery time (trr) of 4 ns. Because the die-level electrical characteristics are equivalent, they are functionally interchangeable in most designs, provided the package and marking differences are acceptable.

What package do the 1N4148W-TP and 1N4148W-E3-08 use, and are their footprints compatible?

Both devices are supplied in the SOD-123 surface-mount package. The 1N4148W-TP from Micro Commercial Co and the 1N4148W-E3-08 from Vishay use the same JEDEC SOD-123 outline, so their PCB land patterns and pad geometries are compatible. Designers should still verify the manufacturer-recommended solder pad layout, as minor differences in lead finish or body dimensions may exist between suppliers.

What are the differences in manufacturer and part numbering between the 1N4148W-TP and 1N4148W-E3-08?

The 1N4148W-TP is manufactured by Micro Commercial Co (MCC), where the "-TP" suffix indicates tape-and-reel packaging. The 1N4148W-E3-08 is manufactured by Vishay Semiconductors, where "E3" denotes a lead-free (RoHS-compliant) finish and "08" denotes the tape-and-reel option. The core "1N4148W" designation is a generic industry part number, so the prefix and suffix identify the supplier and packaging rather than different electrical grades.

Do the 1N4148W-TP and 1N4148W-E3-08 have the same reverse recovery time and switching speed?

Yes. Both are fast switching diodes with a typical reverse recovery time (trr) of 4 ns, measured under standard conditions. This makes them suitable for high-speed switching, signal rectification, and general-purpose small-signal applications where fast turn-off is required. The switching behavior is defined by the 1N4148W specification and is consistent between the two suppliers.

Are both the 1N4148W-TP and 1N4148W-E3-08 RoHS compliant and lead-free?

Yes. The 1N4148W-E3-08 from Vishay is explicitly designated with the "E3" lead-free/RoHS-compliant code. The 1N4148W-TP from Micro Commercial Co is also offered as a RoHS-compliant, lead-free product. Designers should confirm the specific compliance documentation and material declarations from each manufacturer for their production and regulatory requirements.

Can the 1N4148W-TP and 1N4148W-E3-08 be used interchangeably in high-temperature applications?

Both devices are rated for an operating junction temperature range of -55 °C to +150 °C, which is standard for the 1N4148W family. Because the thermal ratings and power dissipation characteristics are equivalent, either part can be used in high-temperature designs within that range. As with any substitution, the actual board-level thermal performance should be validated in the target application.

What is the maximum forward current and repetitive peak reverse voltage for these diodes?

Both the 1N4148W-TP and 1N4148W-E3-08 have a maximum continuous forward current (IF) of 300 mA and a repetitive peak reverse voltage (VRRM) of 100 V. These ratings are consistent with the standard 1N4148W specification and are verified from the respective manufacturer datasheets. They also share a non-repetitive peak forward surge current rating of 1 A (typical for the family).

Are there any differences in capacitance or leakage current between the 1N4148W-TP and 1N4148W-E3-08?

No significant differences are specified. Both diodes exhibit a typical junction capacitance (CD) of approximately 4 pF at 0 V and a reverse leakage current (IR) of about 1 µA at 75 V. These parameters are part of the common 1N4148W specification and are consistent across the two manufacturers. For critical RF or precision applications, designers should consult the specific datasheet curves for each part.

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