SI3134KW-TP N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The SI3134KW-TP is an N-Channel enhancement-mode MOSFET manufactured by Micro Commercial Co, designed for surface mount applications in the SOT-323 package. This device features a 20 V drain-to-source voltage rating with 750 mA continuous drain current capability and 200 mW power dissipation at ambient temperature. The SI3134KW-TP is classified as obsolete, necessitating identification of active equivalent parts for ongoing design support and procurement continuity.

Substiute Parts

SI3134KW-TP

Micro Commercial CoIn Stock: 1111SI3134KW-TP Datasheet

Current PartRFQ

SI3134KWA-TP

Micro Commercial CoIn Stock: 860SI3134KWA-TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete SI3134KW-TP is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Drain-to-source voltage rating (Vdss): 20 V
• Continuous drain current (Id): 750 mA minimum
• Power dissipation capability: 200 mW (Ta)
• Gate-to-source voltage range: ±12 V
• Operating temperature range: -55°C to 150°C (TJ)
• FET type and technology: N-Channel MOSFET (Metal Oxide)

Mechanical Equivalence Criteria:

• Package designation: SOT-323 / SC-70
• Mounting type: Surface Mount

The SI3134KWA-TP satisfies all electrical and mechanical equivalence requirements and is classified as an active product with current manufacturing status and full compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The SI3134KWA-TP is the direct equivalent substitute for the obsolete SI3134KW-TP. Both devices share identical electrical ratings and mechanical specifications across all critical parameters. The SI3134KWA-TP is manufactured by the same supplier and maintains the same base product number (SI3134), confirming design compatibility.

The SI3134KWA-TP offers additional advantages for new designs and ongoing procurement:

Product Status: The SI3134KWA-TP is classified as Active, ensuring continued availability and manufacturing support, whereas the SI3134KW-TP is Obsolete.

Compliance and Certifications: The SI3134KWA-TP is ROHS3 Compliant, REACH Unaffected, and carries Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating superior handling flexibility and regulatory alignment with current industry standards.

Packaging: The SI3134KWA-TP is supplied in Tape & Reel (TR) format, supporting automated assembly processes and reducing component handling risk compared to alternative packaging methods.

Frequently Asked Questions (FAQ)

Q: Can the SI3134KWA-TP be used as a direct replacement for the SI3134KW-TP in existing designs?

A: Yes. The SI3134KWA-TP is electrically and mechanically equivalent to the SI3134KW-TP across all specified parameters, including Vdss (20 V), Id (750 mA), power dissipation (200 mW), and package type (SOT-323). No circuit modifications are required.

Q: What is the primary reason for substituting the SI3134KW-TP?

A: The SI3134KW-TP is classified as Obsolete. The SI3134KWA-TP is the active equivalent, ensuring long-term availability and manufacturing continuity.

Q: Are there any differences in on-resistance (Rds On) between these parts?

A: The SI3134KWA-TP exhibits lower Rds On (300 mOhm @ 500 mA, 4.5 V) compared to the SI3134KW-TP (380 mOhm @ 650 mA, 4.5 V). This represents an improvement in switching efficiency and reduced power dissipation during operation.

Q: Do both parts use the same package designation?

A: Yes. Both the SI3134KW-TP and SI3134KWA-TP use the SOT-323 / SC-70 surface mount package, ensuring mechanical and footprint compatibility on printed circuit boards.

Q: What is the Moisture Sensitivity Level (MSL) of the SI3134KWA-TP?

A: The SI3134KWA-TP carries MSL 1 (Unlimited), indicating no moisture sensitivity restrictions and unlimited shelf life under standard storage conditions.

Q: Are both parts RoHS compliant?

A: The SI3134KWA-TP is ROHS3 Compliant. The SI3134KW-TP compliance status is not specified in the provided data.

Q: What is the difference in input capacitance between these devices?

A: The SI3134KWA-TP has lower input capacitance (Ciss: 33 pF @ 16 V) compared to the SI3134KW-TP (Ciss: 120 pF @ 16 V), resulting in faster switching response and reduced gate drive requirements.