ProjectsPricingInsights

Best Alternatives to 1N4148W

Package: SOD-123Shenzhen SLKOR Micro Semicon Co., Ltd.ComponentReverse Voltage (VRRM): 100 VForward Current (IF(AV)): 150 mAReverse Recovery Time (trr): 4 nsForward Voltage (VF): 1.25 VPeak Reverse Current (IR): 50 µA

1N4148W substitutes should first match SOD-123, polarity, 4 ns recovery, and 150 mA rating. Several catalog candidates need FAE pinout review.

AI replacement insight

Electrical riskmedium

Check VF, leakage, Pd, and trr.

Package risklow

Most kept parts are SOD-123.

Firmware risklow

Discrete diode; no firmware.

Sourcing riskmedium

Some records have weak or conflicting fields.

Can it be replaced directly?

No verified drop-in is confirmed from the provided fields.

Best replacement path

Start with 1N4148W-T4, then MMSD4148T1G or L1N4148WT1G after pinout review.

Main risk

Pin polarity is not explicit for the target fields.

Recommended alternatives

5
1N4148W-T4 package
1N4148W-T4

MDD

Needs validationmedium risk

MDD 1N4148W-T4 is a close SOD-123 1N4148W variant needing pinout review.

View details

Alternative comparison matrix

Feature / factor1N4148W1N4148W-T4MMSD4148T1GL1N4148WT1GCompatibility / risk
PackageSOD-123SOD-123--SOD-123 — same case
Pinoutnot stated2 pins--K,A drawing — verify target
Voltage75 V75/100 V--100 V — higher rating
Current150 mA150 mA--200 mA — higher rating
Power410 mW400/500 mW--425 mW — slightly higher

Application & sourcing insights

Questions & answers

From the provided data, 1N4148W-T4 is the closest candidate, but it still needs pinout and PDF review.