TS4148 Equivalent & Substitute Parts

Part Overview

The TS4148 is a switching diode manufactured by Taiwan Semiconductor Corporation, rated for 75V and 0.15A operation. This component is classified as an active product with ROHS3 compliance and REACH unaffected status. The TS4148 serves general-purpose switching and signal applications requiring fast recovery characteristics in a compact form factor. Equivalent and substitute parts are identified based on matching electrical performance parameters, compliance certifications, and functional compatibility within the diode rectifier category.

Substiute Parts

TS4148

Taiwan Semiconductor CorporationIn Stock: 3266TS4148 Datasheet

Current PartRFQ

1N4148W-7-F

Diodes IncorporatedIn Stock: 10004281N4148W-7-F Datasheet

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1N4148WS_R1_00001

Panjit International Inc.In Stock: 152041N4148WS_R1_00001 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TS4148 are identified based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) rating equal to or greater than 75V
• Current - Average Rectified (Io) rating equal to or greater than 0.15A
• Switching diode functionality with fast recovery characteristics
• Surface mount packaging compatibility
• Active product status
• ROHS3 compliance and REACH unaffected status

Identified Substitutes:

1. 1N4148W-7-F (Diodes Incorporated): Exceeds voltage specification at 100V with 300mA current rating. Provides enhanced performance margin with fast recovery ≤500ns and 4ns reverse recovery time.

2. 1N4148WS_R1_00001 (Panjit International Inc.): Matches voltage specification at 75V with 200mA current rating. Provides equivalent performance with small signal characteristics and 4ns reverse recovery time.

Both substitutes maintain ROHS3 compliance, REACH unaffected status, and EAR99 ECCN classification consistent with the TS4148.

Parameter Comparison

Engineering Selection Recommendations

TS4148 (Taiwan Semiconductor Corporation) Primary selection for applications requiring exact voltage and current specifications at 75V and 0.15A. Maintains active product status with full ROHS3 compliance and REACH unaffected certification. Suitable for cost-optimized designs with standard switching diode performance requirements.

1N4148W-7-F (Diodes Incorporated) Selection for applications requiring enhanced voltage margin (100V) and increased current capacity (300mA). Provides superior performance headroom with fast recovery characteristics ≤500ns. Maintains ROHS3 compliance and REACH unaffected status. Recommended for designs requiring higher reliability margins or future performance scaling.

1N4148WS_R1_00001 (Panjit International Inc.) Selection for applications matching exact voltage specification (75V) with moderate current increase (200mA). Provides small signal switching characteristics with 4ns reverse recovery time. Maintains ROHS3 compliance and REACH unaffected status. Suitable for space-constrained applications utilizing SOD-323 package format.

All three parts maintain identical export classification (EAR99) and tariff coding (8541.10.0070), ensuring consistent regulatory and supply chain treatment.

Frequently Asked Questions (FAQ)

Q: Can the 1N4148W-7-F replace the TS4148 in all applications? A: The 1N4148W-7-F exceeds the TS4148 specifications in both voltage (100V vs. 75V) and current (300mA vs. 0.15A) ratings. It is electrically compatible for direct substitution in TS4148 applications. Package differences (SOD-123 vs. original packaging) require PCB layout verification.

Q: What is the primary difference between the 1N4148W-7-F and 1N4148WS_R1_00001? A: The 1N4148W-7-F operates at 100V with 300mA current capacity and uses SOD-123 packaging. The 1N4148WS_R1_00001 operates at 75V with 200mA current capacity and uses SOD-323 packaging. Both provide equivalent switching performance with 4ns reverse recovery time. Selection depends on voltage margin requirements and available PCB space.

Q: Are all three parts RoHS compliant? A: Yes. The TS4148, 1N4148W-7-F, and 1N4148WS_R1_00001 are all ROHS3 compliant and REACH unaffected. They are suitable for applications requiring environmental compliance certification.

Q: What packaging formats are used for each part? A: The TS4148 uses standard surface mount packaging (1005 form factor). The 1N4148W-7-F uses SOD-123 packaging. The 1N4148WS_R1_00001 uses SOD-323 packaging. PCB footprint compatibility must be verified before substitution.

Q: Do all parts share the same export classification? A: Yes. All three parts are classified as EAR99 with HTSUS code 8541.10.0070, ensuring consistent regulatory treatment and supply chain documentation.

Q: What is the reverse recovery time specification for each part? A: The 1N4148W-7-F and 1N4148WS_R1_00001 both specify 4ns reverse recovery time. This parameter is not provided for the TS4148 in the available documentation.

Q: Can these parts be used interchangeably in high-frequency switching applications? A: The 1N4148W-7-F provides fast recovery characteristics ≤500ns suitable for high-frequency operation. The 1N4148WS_R1_00001 provides small signal switching characteristics. Application-specific frequency requirements determine optimal part selection.