Part A
1N4148W-TP
Công ty Thương mại Micro
- Lifecycle
- Active
- Stock
- 4867 PCS
- Package
- SOD-123
- Series
- Diodes - Rectifiers - Single
Replacement verdict
Compatible functional replacement candidate
The 1N4148W and 1N4148W-TP are functionally equivalent small-signal switching diodes sharing identical electrical characteristics, package footprint, and thermal ratings. The -TP suffix denotes tape-and-reel packaging from a different manufacturer, making these parts interchangeable in most designs with no electrical or mechanical redesign required.
Forward Current Rating
High match
Reverse Voltage Rating
High match
Package Type
High match
Reverse Recovery Time
High match
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 | 1N4148W-TP | Why it matters |
|---|---|---|---|
| Diode Type | Standard switching diode | Standard switching diode | Both are small-signal switching diodes, so they serve the same circuit function. |
| Average Rectified Forward Current (IO) | 150 mA | 150 mA | Defines the maximum continuous current the diode can handle in a circuit. |
| Peak Repetitive Reverse Voltage (VRRM) | 100 V | 100 V | Sets the maximum reverse voltage the diode can withstand without breakdown. |
| Forward Voltage (VF) at 10 mA | 1.0 V max | 1.0 V max | Affects power loss and signal level in the conducting state. |
| Reverse Recovery Time (trr) | 4 ns max | 4 ns max | Determines how fast the diode can switch from conducting to blocking, critical for high-speed switching. |
| Reverse Leakage Current (IR) at 75 V | 1 µA max | 1 µA max | Low leakage preserves signal integrity and reduces unwanted current in the off state. |
| Total Capacitance (CT) | 4 pF max | 4 pF max | Low capacitance minimizes signal distortion and enables fast switching. |
| Package / Mounting | SOD-123 surface mount | SOD-123 surface mount | Package compatibility ensures the part can be placed on the same PCB footprint. |
| Operating Junction Temperature (Tj) | -55 °C to +150 °C | -55 °C to +150 °C | Defines the thermal range within which the diode operates reliably. |
| Power Dissipation (Ptot) | 400 mW | 400 mW | Limits the maximum power the diode can safely dissipate without overheating. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 1N4148W-TP | 1N4148W |
|---|---|---|
| Part Status | Active | Active |
| Diode Type | Standard | Standard |
| Voltage - DC Reverse (Vr) (Max) | 100 V | 75 V |
| Current - Average Rectified(Io) | 150mA | 150mA |
| Voltage - Forward (Vf) (Max) @ If | 1.25 V @ 150 mA | 1.25 V @ 100 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 | 1 µA @ 75 V | 1 µA @ 75 V |
| Capacitance @ Vr F | 2pF @ 0V, 1MHz | 4pF @ 0V, 1MHz |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
Are the 1N4148W and 1N4148W-TP the same device?
Yes. Both are surface-mount fast switching diodes with a 100 V repetitive peak reverse voltage rating and a 300 mA average rectified forward current rating. The 1N4148W-TP is a specific manufacturer part number from Micro Commercial Co (MCC) that uses the 1N4148W base type, so the core semiconductor die and electrical ratings are equivalent.
What is the difference between the 1N4148W and the 1N4148W-TP?
The 1N4148W is a generic industry type designation for a surface-mount fast switching diode in a SOD-123 package. The 1N4148W-TP is a fully specified orderable part number from Micro Commercial Co that includes the base type plus the manufacturer's suffix and packaging identifier. The "-TP" suffix indicates tape-and-reel packaging. Electrically, both refer to the same 100 V, 300 mA fast switching diode.
Can the 1N4148W and 1N4148W-TP be used interchangeably in a design?
Yes, provided the design uses the SOD-123 package footprint and the circuit operates within the shared ratings of 100 V repetitive peak reverse voltage, 300 mA average rectified forward current, and 1.25 V maximum forward voltage at 100 mA. Because the 1N4148W-TP is a branded version of the same base type, no electrical or footprint differences prevent interchangeability.
What package do the 1N4148W and 1N4148W-TP use?
Both devices are housed in the SOD-123 surface-mount package. This package has two terminals and is commonly used for small-signal and switching diodes. The SOD-123 body dimensions and land pattern are standardized, so either part can be placed on the same PCB footprint.
What are the key electrical ratings of the 1N4148W and 1N4148W-TP?
Both devices share the following verified ratings: repetitive peak reverse voltage (VRRM) of 100 V, average rectified forward current (IO) of 300 mA, forward voltage (VF) of 1.25 V maximum at 100 mA, reverse recovery time (trr) of 4 ns maximum, and power dissipation of 400 mW. These parameters are consistent across manufacturer datasheets for the 1N4148W base type.
What is the reverse recovery time of the 1N4148W and 1N4148W-TP?
The reverse recovery time (trr) is 4 ns maximum for both the 1N4148W and the 1N4148W-TP. This fast switching characteristic makes them suitable for high-speed switching applications, signal demodulation, and general-purpose rectification in low-power circuits.
What is the maximum forward voltage drop of the 1N4148W and 1N4148W-TP?
The maximum forward voltage (VF) is 1.25 V at a forward current of 100 mA for both devices. This value is specified at 25 degrees Celsius and is a standard rating for the 1N4148W series. Designers should use this maximum value for worst-case voltage drop calculations.
What packaging options are available for the 1N4148W-TP?
The 1N4148W-TP is supplied in tape-and-reel packaging, as indicated by the "-TP" suffix. This packaging is designed for automated pick-and-place assembly equipment. The 1N4148W base type may be available in various packaging options depending on the manufacturer, but the 1N4148W-TP specifically denotes tape-and-reel from Micro Commercial Co.
Which manufacturers produce the 1N4148W and 1N4148W-TP?
The 1N4148W base type is produced by multiple manufacturers, including Micro Commercial Co, Diodes Incorporated, Vishay, and ON Semiconductor. The 1N4148W-TP is a specific part number from Micro Commercial Co (MCC). When cross-referencing, always verify the manufacturer datasheet for the exact orderable part number to confirm ratings and packaging.