SQJ409EP-T1_BE3 Equivalent & Substitute Parts

Part Overview

The SQJ409EP-T1_BE3 is a P-Channel 40 V MOSFET manufactured by Vishay Siliconix, designed for surface mount applications in the PowerPAK® SO-8 package. This device operates across an extended temperature range of -55°C to 175°C and is qualified to AEC-Q101 automotive standards. The part is currently in active production status with 3655 units available in tape and reel packaging. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to packaging format availability, inventory constraints, or design flexibility within the same product family.

Substiute Parts

SQJ409EP-T1_BE3

Vishay SiliconixIn Stock: 3708SQJ409EP-T1_BE3 Datasheet

Current PartRFQ

SQJ409EP-T1_GE3

Vishay SiliconixIn Stock: 405442SQJ409EP-T1_GE3 Datasheet

Parametric EquivalentRFQ

SQJ409EP-T2_GE3

Vishay SiliconixIn Stock: 89904SQJ409EP-T2_GE3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SQJ409EP-T1_BE3 are identified based on electrical and mechanical parameter equivalence within the Vishay Siliconix TrenchFET® P-Channel MOSFET product family. The substitution criteria are strictly limited to the following parameters:

Electrical Equivalence Requirements:

• Drain to Source Voltage (Vdss): 40 V
• Continuous Drain Current (Id) @ 25°C: 60 A (Tc)
• On-Resistance (Rds On Max): 7 mOhm @ 10A, 10V
• Gate Threshold Voltage (Vgs(th) Max): 2.5 V @ 250µA
• Gate Charge (Qg Max): 260 nC @ 10V
• Power Dissipation (Max): 68 W (Tc)
• Operating Temperature Range: -55°C to 175°C (TJ)

Mechanical & Compliance Equivalence Requirements:

• Package Type: PowerPAK® SO-8 Surface Mount
• FET Type: P-Channel
• Technology: MOSFET (Metal Oxide)
• Series: TrenchFET®
• Qualification: AEC-Q101 Automotive
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The primary difference between the main part and substitute parts is the packaging format: the SQJ409EP-T1_BE3 is supplied in Tape & Reel (TR) format, while substitute parts SQJ409EP-T1_GE3 and SQJ409EP-T2_GE3 are supplied in Cut Tape (CT) & Digi-Reel® format. All three parts share identical electrical specifications and are functionally interchangeable at the circuit level.

Parameter Comparison

Engineering Selection Recommendations

All three parts—SQJ409EP-T1_BE3, SQJ409EP-T1_GE3, and SQJ409EP-T2_GE3—are active production devices manufactured by Vishay Siliconix and carry AEC-Q101 automotive qualification. Each part is ROHS3 compliant and operates across the full automotive temperature range of -55°C to 175°C.

Selection Basis:

The SQJ409EP-T1_BE3 is supplied in Tape & Reel (TR) format and is suitable for high-volume automated assembly operations. The substitute parts SQJ409EP-T1_GE3 and SQJ409EP-T2_GE3 are supplied in Cut Tape (CT) & Digi-Reel® format, which accommodates alternative assembly workflows or inventory management strategies.

All three parts deliver identical electrical performance: 40 V drain-source voltage rating, 60 A continuous drain current, 7 mOhm on-resistance, and 68 W maximum power dissipation. The PowerPAK® SO-8 package is consistent across all variants, ensuring mechanical and thermal compatibility in PCB layouts.

Selection between these parts is determined by packaging format requirements and supply chain availability rather than electrical or thermal performance differences.

Frequently Asked Questions (FAQ)

Q: Are SQJ409EP-T1_GE3 and SQJ409EP-T2_GE3 electrically identical to SQJ409EP-T1_BE3?

A: Yes. All three parts share identical electrical specifications including drain-source voltage (40 V), continuous drain current (60 A), on-resistance (7 mOhm), gate charge (260 nC), and power dissipation (68 W). They are functionally interchangeable at the circuit level.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® packaging?

A: Tape & Reel (TR) format is optimized for high-volume automated pick-and-place assembly. Cut Tape (CT) & Digi-Reel® format provides flexibility for lower-volume production runs or alternative assembly processes. The electrical and mechanical specifications of the component remain unchanged.

Q: Can I substitute SQJ409EP-T1_BE3 with SQJ409EP-T1_GE3 or SQJ409EP-T2_GE3 in an existing design?

A: Yes. The PowerPAK® SO-8 package footprint, pin configuration, and electrical performance are identical across all three parts. No circuit modifications or PCB layout changes are required.

Q: Are all three parts AEC-Q101 qualified?

A: Yes. SQJ409EP-T1_BE3, SQJ409EP-T1_GE3, and SQJ409EP-T2_GE3 all carry AEC-Q101 automotive qualification and are suitable for automotive applications requiring this certification.

Q: What is the operating temperature range for these MOSFETs?

A: All three parts operate across -55°C to 175°C (junction temperature). This range covers automotive and industrial temperature requirements.

Q: Are these parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant and carry Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: What is the gate threshold voltage specification?

A: The gate threshold voltage (Vgs(th) Max) is 2.5 V at 250 µA drain current for all three parts. Maximum gate voltage is ±20 V.

Q: Can these P-Channel MOSFETs be used in high-frequency switching applications?

A: Yes. The gate charge specification of 260 nC at 10 V and input capacitance of 11000 pF at 25 V support high-frequency switching applications within the specified voltage and current ratings.