SI2333CDS-T1-E3 Equivalent & Substitute Parts

Part Overview

The SI2333CDS-T1-E3 is a P-Channel 12V MOSFET manufactured by Vishay Siliconix in the TrenchFET® series. This surface mount device is rated for 7.1A continuous drain current (Tc) with a maximum drain-source voltage of 12V and is packaged in SOT-23-3 (TO-236). The part is Active status and ROHS3 compliant. Equivalent and substitute parts are identified to address inventory availability, packaging format preferences, or application-specific performance requirements while maintaining electrical and mechanical compatibility within defined parameter ranges.

Key Parameters

Parameter	Value	Unit
FET Type	P-Channel	—
Drain-Source Voltage (Vdss)	12	V
Continuous Drain Current (Id) @ 25°C	7.1	A (Tc)
On-Resistance (Rds On) @ 5.1A, 4.5V	35	mOhm
Gate Threshold Voltage (Vgs(th)) @ 250µA	1	V
Gate Charge (Qg) @ 4.5V	25	nC
Input Capacitance (Ciss) @ 6V	1225	pF
Power Dissipation (Max)	1.25 (Ta), 2.5 (Tc)	W
Operating Temperature Range	-55 to 150	°C (TJ)
Package Type	SOT-23-3 (TO-236)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on substitution relationship and electrical compatibility:

Direct Manufacturer Equivalent: SI2333CDS-T1-BE3 shares identical electrical specifications with the main part, differing only in packaging format (Tape & Reel). This part is a direct drop-in replacement with no performance variation.

Parametric Equivalent: SI2333CDS-T1-GE3 is electrically identical to the main part but supplied in Cut Tape & Digi-Reel® packaging. This part maintains all critical electrical parameters and is suitable for applications where packaging format is the only consideration.

Manufacturer-Recommended Alternatives: The following parts are recommended as functional substitutes when the primary part is unavailable. These alternatives maintain the core electrical requirements of P-Channel topology, 12V Vdss rating, and SOT-23-3 package compatibility. Substitution is valid when the application requirements fall within the specified current and power dissipation ranges of each alternative:

DMP1045U-7 (Diodes Incorporated): 4A continuous drain current, 31mOhm Rds On, 800mW power dissipation
FDN306P (onsemi): 2.6A continuous drain current, 40mOhm Rds On, 500mW power dissipation
IRLML6401TRPBF (Infineon Technologies): 4.3A continuous drain current, 50mOhm Rds On, 1.3W power dissipation
RQ5A020ZPTL (Rohm Semiconductor): 2A continuous drain current, 105mOhm Rds On, 700mW power dissipation
RQ5A025ZPTL (Rohm Semiconductor): 2.5A continuous drain current, 61mOhm Rds On, 760mW power dissipation
RQ5A030APTL (Rohm Semiconductor): 3A continuous drain current, 62mOhm Rds On, 1W power dissipation
RZF020P01TL (Rohm Semiconductor): 2A continuous drain current, 105mOhm Rds On, 800mW power dissipation
RZR025P01TL (Rohm Semiconductor): 2.5A continuous drain current, 61mOhm Rds On, 1W power dissipation

Substitution logic is based on matching the following critical parameters: P-Channel FET topology, 12V Vdss rating, SOT-23-3 package footprint, surface mount configuration, operating temperature range (-55°C to 150°C), and ROHS3 compliance. Applications requiring the full 7.1A rating must use the direct equivalents or DMP1045U-7 and IRLML6401TRPBF. Lower-current applications may use alternatives with reduced current ratings.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (A)	Rds On (mOhm)	Qg (nC)	Ciss (pF)	Power Diss (W)	Package	Status
SI2333CDS-T1-E3	Vishay Siliconix	12	7.1 (Tc)	35 @ 5.1A, 4.5V	25 @ 4.5V	1225 @ 6V	1.25 (Ta), 2.5 (Tc)	SOT-23-3	Active
SI2333CDS-T1-BE3	Vishay Siliconix	12	7.1 (Tc)	35 @ 5.1A, 4.5V	25 @ 4.5V	1225 @ 6V	1.25 (Ta), 2.5 (Tc)	SOT-23-3	Active
SI2333CDS-T1-GE3	Vishay Siliconix	12	7.1 (Tc)	35 @ 5.1A, 4.5V	25 @ 4.5V	1225 @ 6V	1.25 (Ta), 2.5 (Tc)	SOT-23-3	Active
DMP1045U-7	Diodes Incorporated	12	4 (Ta)	31 @ 4A, 4.5V	15.8 @ 4.5V	1357 @ 10V	0.8	SOT-23-3	Active
FDN306P	onsemi	12	2.6 (Ta)	40 @ 2.6A, 4.5V	17 @ 4.5V	1138 @ 6V	0.5	SOT-23-3	Active
IRLML6401TRPBF	Infineon Technologies	12	4.3 (Ta)	50 @ 4.3A, 4.5V	15 @ 5V	830 @ 10V	1.3	SOT-23-3	Active
RQ5A020ZPTL	Rohm Semiconductor	12	2 (Ta)	105 @ 2A, 4.5V	6.5 @ 4.5V	770 @ 6V	0.7	TSMT3	Active
RQ5A025ZPTL	Rohm Semiconductor	12	2.5 (Ta)	61 @ 2.5A, 4.5V	13 @ 4.5V	1350 @ 6V	0.76	TSMT3	Active
RQ5A030APTL	Rohm Semiconductor	12	3 (Ta)	62 @ 3A, 4.5V	16 @ 4.5V	2000 @ 6V	1	TSMT3	Active
RZF020P01TL	Rohm Semiconductor	12	2 (Ta)	105 @ 2A, 4.5V	6.5 @ 4.5V	770 @ 6V	0.8	TUMT3	Active
RZR025P01TL	Rohm Semiconductor	12	2.5 (Ta)	61 @ 2.5A, 4.5V	13 @ 4.5V	1350 @ 6V	1	TSMT3	Not For New Designs

Engineering Selection Recommendations

For Direct Replacement: SI2333CDS-T1-BE3 and SI2333CDS-T1-GE3 are electrically and functionally identical to SI2333CDS-T1-E3. Selection between these three parts should be based solely on packaging format availability and supply chain requirements. All three maintain Active product status and ROHS3 compliance.

For Current-Constrained Applications: When application requirements do not exceed 4.3A continuous drain current, DMP1045U-7 and IRLML6401TRPBF are suitable alternatives. Both parts maintain 12V Vdss, SOT-23-3 package compatibility, Active status, and ROHS3 compliance.

For Lower-Current Applications: When application requirements do not exceed 3A continuous drain current, RQ5A030APTL is a suitable alternative. This part maintains 12V Vdss, surface mount configuration, Active status, and ROHS3 compliance, though it uses TSMT3 package format.

For Minimal Power Dissipation Requirements: FDN306P is suitable for applications requiring 2.6A or less. This part offers the lowest power dissipation (500mW) among alternatives while maintaining 12V Vdss, SOT-23-3 package, Active status, and ROHS3 compliance.

Avoid for New Designs: RZR025P01TL carries "Not For New Designs" product status and should not be selected for new applications, despite electrical compatibility.

Compliance Verification: All recommended substitutes maintain ROHS3 compliance, Moisture Sensitivity Level 1 (Unlimited), and operating temperature range of -55°C to 150°C (TJ), ensuring regulatory and environmental compatibility with the original part.

Frequently Asked Questions (FAQ)

Q: Can SI2333CDS-T1-BE3 be used as a direct replacement for SI2333CDS-T1-E3?

A: Yes. SI2333CDS-T1-BE3 is a direct manufacturer equivalent with identical electrical specifications. The only difference is packaging format (Tape & Reel). No circuit modifications are required.

Q: What is the difference between SI2333CDS-T1-E3 and SI2333CDS-T1-GE3?

A: Both parts are electrically identical with matching specifications. SI2333CDS-T1-GE3 is supplied in Cut Tape & Digi-Reel® packaging, while SI2333CDS-T1-E3 is supplied in Tape & Reel. Selection depends on packaging format preference and supply availability.

Q: Can DMP1045U-7 replace SI2333CDS-T1-E3 in all applications?

A: DMP1045U-7 is suitable only for applications where continuous drain current does not exceed 4A. The original part is rated for 7.1A (Tc). If your application requires the full 7.1A rating, DMP1045U-7 is not suitable.

Q: What is the key difference between SOT-23-3 and TSMT3 packages?

A: SOT-23-3 and TSMT3 are different physical package formats with different footprints and pin configurations. Parts using TSMT3 package (Rohm Semiconductor alternatives) require PCB layout modifications and cannot be used as direct pin-compatible replacements for SOT-23-3 parts without redesign.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All recommended substitute parts listed in this document maintain ROHS3 compliance, matching the regulatory status of SI2333CDS-T1-E3.

Q: Why is RZR025P01TL marked "Not For New Designs"?

A: RZR025P01TL carries a "Not For New Designs" product status designation from the manufacturer. While electrically compatible, this part should not be selected for new circuit designs. Use RQ5A025ZPTL or other Active-status alternatives instead.

Q: Can I use FDN306P if my application requires 3A continuous drain current?

A: No. FDN306P is rated for 2.6A maximum continuous drain current. For 3A applications, use RQ5A030APTL, which is rated for 3A continuous drain current.

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

A: All substitute parts maintain an operating temperature range of -55°C to 150°C (TJ), matching the original SI2333CDS-T1-E3 specification.

Q: Do all substitute parts have the same gate charge (Qg) specification?

A: No. Gate charge varies among alternatives. SI2333CDS-T1-E3 has 25 nC @ 4.5V. Alternatives range from 6.5 nC to 17 nC. Lower gate charge reduces switching losses and may improve circuit efficiency in high-frequency applications.

Q: Is moisture sensitivity a concern when substituting parts?

A: No. All parts, including the original and all substitutes, maintain Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity concerns during storage or handling.

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