VQ2001P-2 Equivalent & Substitute Parts

Part Overview

The VQ2001P-2 is a 4-channel P-channel MOSFET array manufactured by Vishay Siliconix, housed in a 14-DIP through-hole package. This component is rated for 30V drain-to-source voltage with 600mA continuous drain current and 2W maximum power dissipation. The device is classified as obsolete, necessitating identification of functionally compatible alternatives for ongoing design support and production requirements.

Substiute Parts

VQ2001P-2

Vishay SiliconixIn Stock: 942VQ2001P-2 Datasheet

Current PartRFQ

ALD1107PBL

Advanced Linear Devices Inc.In Stock: 933ALD1107PBL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VQ2001P-2 is constrained by the following critical parameters:

Package Compatibility: Both the main part and substitute must utilize 14-DIP through-hole packaging to ensure direct PCB footprint compatibility without layout modifications.

Configuration: The 4-channel P-channel MOSFET array configuration is mandatory for functional equivalence in multi-switch applications.

Voltage Rating: The substitute part must support the application voltage requirements. The VQ2001P-2 specifies 30V Vdss; substitute parts with lower voltage ratings (such as 10.6V) are suitable only for applications operating below the substitute's maximum rating.

Current Handling: Continuous drain current capability must meet or exceed application requirements. The VQ2001P-2 provides 600mA; substitutes with lower current ratings require verification against actual circuit demands.

Power Dissipation: Maximum power rating must accommodate thermal requirements of the application.

On-Resistance (Rds On): This parameter directly affects power loss and thermal performance. Substitutes with significantly different Rds On values may alter circuit behavior.

Gate Threshold Voltage (Vgs(th)): This parameter affects switching characteristics and gate drive requirements.

The ALD1107PBL is identified as a substitute based on matching package type (14-DIP) and configuration (4 P-Channel). However, critical parameter differences exist that define the scope of substitution applicability.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The VQ2001P-2 is classified as obsolete, while the ALD1107PBL maintains active product status. This distinction is significant for long-term supply chain planning and design continuity.

Compliance Posture: The ALD1107PBL is ROHS3 compliant, whereas the VQ2001P-2 is RoHS non-compliant. For applications subject to RoHS regulations or customer requirements, the ALD1107PBL provides regulatory alignment.

Electrical Parameter Divergence: The ALD1107PBL exhibits substantially different electrical characteristics:

• Vdss is reduced to 10.6V (versus 30V), limiting applicability to lower-voltage circuits
• Rds On is significantly higher at 1800 Ohm (versus 2 Ohm), resulting in substantially increased power dissipation
• Maximum power rating is 0.5W (versus 2W), constraining thermal headroom
• Operating temperature range is narrower (0°C to 70°C versus -55°C to 150°C)

Substitution Scope: The ALD1107PBL is suitable as a substitute only in applications where:

• Circuit operating voltage does not exceed 10.6V
• Current requirements are compatible with the unspecified Id rating
• Thermal design accommodates the higher Rds On and lower power rating
• Operating temperature remains within 0°C to 70°C range

For applications requiring the full 30V rating, 600mA current capability, or extended temperature operation of the VQ2001P-2, the ALD1107PBL does not provide functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can the ALD1107PBL directly replace the VQ2001P-2 in any application?

A: Direct replacement is limited to applications operating at voltages not exceeding 10.6V. The ALD1107PBL cannot substitute in circuits requiring the VQ2001P-2's 30V voltage rating. Additionally, the significantly higher on-resistance and lower power rating must be evaluated against thermal and current requirements.

Q: What is the primary limitation of using ALD1107PBL as a substitute?

A: The maximum drain-to-source voltage rating of 10.6V is the primary constraint. Applications designed for 30V operation cannot use this substitute without circuit redesign.

Q: Are the packages physically identical?

A: Both parts use 14-DIP through-hole packaging with identical 0.300" (7.62mm) pitch, enabling direct PCB footprint compatibility. However, electrical parameter differences preclude functional equivalence in all applications.

Q: How does the on-resistance difference affect circuit performance?

A: The ALD1107PBL exhibits 1800 Ohm on-resistance compared to 2 Ohm for the VQ2001P-2. This 900-fold increase results in substantially higher power dissipation and heat generation, requiring thermal analysis for any substitution consideration.

Q: What is the significance of the matched pair designation for ALD1107PBL?

A: The matched pair designation indicates that the four P-channel transistors within the package exhibit tightly controlled parameter matching. This feature is beneficial for applications requiring precise channel-to-channel consistency but does not alter substitution compatibility criteria.

Q: Does RoHS compliance affect substitution decisions?

A: RoHS compliance is a regulatory and supply chain consideration. The ALD1107PBL's ROHS3 compliance may be required for applications subject to RoHS regulations, whereas the VQ2001P-2's non-compliance may restrict its use in regulated markets.

Q: What temperature range limitations apply to the ALD1107PBL?

A: The ALD1107PBL operates from 0°C to 70°C, compared to the VQ2001P-2's -55°C to 150°C range. Applications requiring extended temperature operation, particularly below 0°C or above 70°C, cannot use the ALD1107PBL.