SI3134KDW-TP MOSFET Equivalent & Substitute Parts

Part Overview

The SI3134KDW-TP is a dual N-channel MOSFET array manufactured by Micro Commercial Co, designed for surface mount applications in the SOT-363 package. This component features a 20V drain-to-source voltage rating with 750mA continuous drain current capability and 150mW maximum power dissipation. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production support. Equivalent parts maintain identical or superior electrical performance within the same package family, while substitute parts offer functional compatibility with minor parameter variations.

Substiute Parts

SI3134KDW-TP

Micro Commercial CoIn Stock: 9954SI3134KDW-TP Datasheet

Current PartRFQ

SI3134KDWA-TP

Micro Commercial CoIn Stock: 6492SI3134KDWA-TP Datasheet

MFR RecommendedRFQ

FDG6317NZ

onsemiIn Stock: 105388FDG6317NZ Datasheet

SimilarRFQ

NTJD4401NT1G

onsemiIn Stock: 125249NTJD4401NT1G Datasheet

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PMGD290XN,115

Nexperia USA Inc.In Stock: 11973PMGD290XN,115 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SI3134KDW-TP is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Drain-to-source voltage (Vdss) must equal or exceed 20V
• Continuous drain current (Id) must support 750mA or higher
• Configuration must be dual N-channel (2 N-CH)
• Gate threshold voltage (Vgs(th)) must be compatible with 1.1V @ 250µA specification
• On-resistance (Rds On) characteristics must support low-loss switching applications

Mechanical Compatibility Criteria:

• Package must be surface mount in 6-TSSOP, SC-88, or SOT-363 form factor
• Pin configuration must maintain functional equivalence in dual N-channel topology

Compliance Criteria:

• RoHS3 compliance required
• Moisture sensitivity level MSL 1 (Unlimited) preferred for manufacturing flexibility

Substitute parts are grouped into two categories: direct equivalents (SI3134KDWA-TP) that maintain identical specifications with improved product status, and functional substitutes (FDG6317NZ, NTJD4401NT1G, PMGD290XN,115) that meet or exceed electrical requirements with acceptable parameter variations.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SI3134KDWA-TP

The SI3134KDWA-TP is the direct equivalent replacement for the obsolete SI3134KDW-TP. Both parts are manufactured by Micro Commercial Co and share identical electrical specifications including 20V Vdss, 750mA continuous drain current, and 150mW power dissipation. The SI3134KDWA-TP maintains active product status, ensuring long-term availability and manufacturing support. This part is ROHS3 compliant with MSL 1 rating, matching the original component's compliance profile. The SI3134KDWA-TP demonstrates improved on-resistance characteristics (300mOhm vs. 380mOhm) and significantly reduced gate charge (0.8nC vs. 20nC), providing enhanced switching efficiency. The extended operating temperature range (-55°C to 150°C) provides superior thermal performance compared to the original specification.

Secondary Recommendations: Functional Substitutes

NTJD4401NT1G (onsemi) is an active product offering dual N-channel configuration with 20V Vdss rating. This part supports 630mA continuous drain current, which is within acceptable operating margins for applications designed for 750mA. The NTJD4401NT1G features logic level gate operation and is available in SC-88/SC70-6/SOT-363 package options, providing pin-compatible alternatives. ROHS3 compliance and MSL 1 rating ensure manufacturing compatibility. This part is suitable for applications where the 630mA current rating is sufficient.

FDG6317NZ (onsemi) provides 700mA continuous drain current with 20V Vdss, supporting most applications requiring the original 750mA specification. The part features PowerTrench® technology with logic level gate operation and is available in SC-88 package. FDG6317NZ carries Last Time Buy status, limiting its suitability for new long-term designs but remaining viable for near-term production requirements. Maximum power dissipation of 300mW exceeds the original 150mW specification, providing thermal margin.

PMGD290XN,115 (Nexperia USA Inc.) offers the highest continuous drain current at 860mA with 20V Vdss, exceeding the original specification. This TrenchMOS™ technology part provides superior on-resistance characteristics and is available in 6-TSSOP package. PMGD290XN,115 carries "Not For New Designs" status, restricting its use to legacy system support and maintenance applications. Maximum power dissipation of 410mW provides significant thermal headroom.

Compliance and Regulatory Status:

All recommended substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, ensuring compatibility with existing manufacturing processes and supply chain requirements. All parts carry EAR99 ECCN classification and REACH Unaffected status, matching the regulatory profile of the original component.

Frequently Asked Questions (FAQ)

Q: Can SI3134KDWA-TP be used as a direct replacement for SI3134KDW-TP?

A: Yes. SI3134KDWA-TP is the direct equivalent manufactured by Micro Commercial Co. Both parts share identical electrical specifications (20V Vdss, 750mA Id, 150mW power dissipation) and dual N-channel configuration. SI3134KDWA-TP maintains active product status and is ROHS3 compliant with MSL 1 rating. The equivalent part demonstrates improved performance characteristics including lower on-resistance and reduced gate charge.

Q: What is the difference between the substitute parts?

A: Substitute parts differ in continuous drain current ratings, on-resistance characteristics, and product status. NTJD4401NT1G (onsemi, Active) supports 630mA; FDG6317NZ (onsemi, Last Time Buy) supports 700mA; PMGD290XN,115 (Nexperia, Not For New Designs) supports 860mA. All maintain 20V Vdss and dual N-channel configuration. Selection depends on current requirements and product lifecycle considerations.

Q: Are package variations between substitute parts compatible?

A: Package compatibility depends on application PCB design. SI3134KDWA-TP maintains SOT-363 package identical to the original. NTJD4401NT1G is available in SC-88/SC70-6/SOT-363 options, providing flexibility. FDG6317NZ uses SC-88 package. PMGD290XN,115 uses 6-TSSOP package. All are surface mount 6-pin configurations with dual N-channel topology. PCB layout verification is required when changing package types.

Q: Which substitute part is recommended for new designs?

A: SI3134KDWA-TP is the recommended choice for new designs, as it is the direct equivalent with active product status. Among functional substitutes, NTJD4401NT1G (onsemi, Active) is the only option with active product status. FDG6317NZ carries Last Time Buy status, and PMGD290XN,115 is marked Not For New Designs, making both unsuitable for new long-term product development.

Q: What are the key electrical differences between the main part and substitutes?

A: The primary differences are continuous drain current (630mA to 860mA range vs. 750mA original), on-resistance values (300mOhm to 400mOhm vs. 380mOhm original), gate threshold voltage (1.5V vs. 1.1V for some substitutes), and gate charge characteristics (0.72nC to 3nC vs. 20nC original). All parts maintain 20V Vdss and dual N-channel configuration. Applications with strict current or switching speed requirements should verify compatibility with specific substitute parameters.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitute parts (SI3134KDWA-TP, FDG6317NZ, NTJD4401NT1G, PMGD290XN,115) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. All carry EAR99 ECCN classification and REACH Unaffected status, matching the regulatory profile of the original SI3134KDW-TP component.

Q: What is the operating temperature range for substitute parts?

A: SI3134KDWA-TP and all functional substitutes support -55°C to 150°C operating temperature range, exceeding the original SI3134KDW-TP specification (up to 150°C). This extended lower temperature limit provides improved performance in cold environment applications.

Q: Can lower current-rated parts be used in applications designed for 750mA?

A: Application-specific analysis is required. NTJD4401NT1G (630mA) and FDG6317NZ (700mA) have reduced current ratings compared to the original 750mA specification. These parts are suitable only if the actual application current draw remains below the substitute part's continuous drain current rating with appropriate safety margin. Circuit thermal analysis and current profiling are necessary to confirm compatibility.