DG2001DV-T1-E3 Equivalent & Substitute Parts

Part Overview

The DG2001DV-T1-E3 is a single-circuit SPDT (Single Pole Double Throw) analog switch manufactured by Vishay Siliconix, designed for signal routing and multiplexing applications in low-voltage systems. This part operates across a supply voltage range of 1.8V to 5.5V with an on-state resistance of 7Ohm and is packaged in a 6-TSOP surface mount configuration.

The DG2001DV-T1-E3 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this component.

Key Parameters

Parameter	DG2001DV-T1-E3
Switch Circuit	SPDT
Multiplexer/Demultiplexer Circuit	2:1
Number of Circuits	1
On-State Resistance (Max)	7Ohm
Voltage - Supply, Single (V+)	1.8V ~ 5.5V
Switch Time (Ton, Toff) (Max)	20ns, 10ns
Charge Injection	7pC
Channel Capacitance (CS(off), CD(off))	17pF
Current - Leakage (IS(off)) (Max)	900pA
Crosstalk	-70dB @ 1MHz
Operating Temperature	-40°C ~ 85°C
Package / Case	SOT-23-6 Thin, TSOT-23-6
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the DG2001DV-T1-E3 is determined by the following critical parameters:

Switch topology: SPDT 2:1 configuration with single circuit
Supply voltage compatibility: 1.8V ~ 5.5V operating range
Package type: SOT-23-6 or TSOT-23-6 surface mount
On-state resistance: Maximum 7Ohm (lower values acceptable for improved performance)
Operating temperature range: -40°C ~ 85°C minimum
Regulatory compliance: ROHS3 compliant

Substitute parts are grouped into two categories:

Category 1 - Direct Vishay Siliconix Family: Parts sharing the same manufacturer and base product line (DG2001 series) with identical topology and package specifications.

Category 2 - Cross-Manufacturer Equivalents: Parts from alternative manufacturers (Analog Devices Inc./Maxim Integrated, Diodes Incorporated, STMicroelectronics) that meet or exceed the electrical and mechanical specifications of the original part.

Parameter Comparison

Parameter	DG2001DV-T1-E3	DG2001EDV-T1-GE3	MAX4561EUT+T	PI5A124TEX	STG719STR
Manufacturer	Vishay Siliconix	Vishay Siliconix	Analog Devices Inc./Maxim Integrated	Diodes Incorporated	STMicroelectronics
Switch Circuit	SPDT	SPDT	SPDT	SPDT	SPDT
Multiplexer/Demultiplexer Circuit	2:1	2:1	2:1	2:1	2:1
Number of Circuits	1	1	1	1	1
On-State Resistance (Max)	7Ohm	1.6Ohm	70Ohm	10Ohm	4Ohm
Voltage - Supply, Single (V+)	1.8V ~ 5.5V	1.8V ~ 5.5V	1.8V ~ 12V	2V ~ 6V	1.8V ~ 5.5V
Switch Time (Ton, Toff) (Max)	20ns, 10ns	32ns, 26ns	150ns, 80ns	15ns, 7ns	7ns, 4.5ns (Typ)
Charge Injection	7pC	8pC	17pC	1.6pC	Not specified
Channel Capacitance (CS(off), CD(off))	17pF	Not specified	20pF	5.5pF, 5.5pF	19pF
Current - Leakage (IS(off)) (Max)	900pA	Not specified	500pA	200pA (Typ)	250pA
Crosstalk	-70dB @ 1MHz	-63dB @ 1MHz	Not specified	-43dB @ 10MHz	-52dB @ 1MHz
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-55°C ~ 125°C
Package / Case	SOT-23-6 Thin, TSOT-23-6	SOT-23-6 Thin, TSOT-23-6	SOT-23-6	SOT-23-6	SOT-23-6
Product Status	Obsolete	Active	Active	Last Time Buy	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

DG2001EDV-T1-GE3 (Vishay Siliconix)

This part is the primary direct substitute for the DG2001DV-T1-E3. It maintains identical topology, supply voltage range, and package specifications while offering superior on-state resistance (1.6Ohm versus 7Ohm). The part is currently in active production status, ensuring long-term availability. ROHS3 compliance and MSL 1 rating match the original specification. Selection of this part provides the highest design continuity with minimal circuit redesign requirements.

STG719STR (STMicroelectronics)

This part meets all critical substitution criteria with on-state resistance of 4Ohm, supply voltage range of 1.8V ~ 5.5V, and SOT-23-6 package compatibility. The part is in active production status. Operating temperature range extends to -55°C ~ 125°C, providing broader environmental coverage than the original part. Switch time performance is superior (7ns, 4.5ns typical). ROHS3 compliance and MSL 1 rating are maintained.

PI5A124TEX (Diodes Incorporated)

This part provides functional equivalence with on-state resistance of 10Ohm and supply voltage range of 2V ~ 6V. The part is classified as Last Time Buy, indicating limited future availability. Switch time performance is superior (15ns, 7ns maximum). Channel capacitance and leakage current specifications are improved. ROHS3 compliance is maintained. This part is suitable for applications where supply voltage remains above 2V.

MAX4561EUT+T (Analog Devices Inc./Maxim Integrated)

This part offers extended supply voltage range (1.8V ~ 12V) and is in active production status. On-state resistance of 70Ohm represents a significant increase from the original specification and may impact circuit performance in applications sensitive to switch resistance. Switch time performance is degraded (150ns, 80ns maximum). This part is suitable only for applications where higher on-state resistance is acceptable and extended supply voltage range is required.

Frequently Asked Questions (FAQ)

Q: Can the DG2001EDV-T1-GE3 be used as a direct replacement for the DG2001DV-T1-E3?

A: Yes. The DG2001EDV-T1-GE3 is a direct substitute from the same manufacturer and product family. It maintains identical supply voltage range (1.8V ~ 5.5V), package type (SOT-23-6 Thin, TSOT-23-6), and operating temperature range (-40°C ~ 85°C). The improved on-state resistance (1.6Ohm versus 7Ohm) provides enhanced performance without requiring circuit modifications. The part is in active production status.

Q: What are the key differences between the DG2001DV-T1-E3 and cross-manufacturer substitutes?

A: Cross-manufacturer substitutes (MAX4561EUT+T, PI5A124TEX, STG719STR) maintain the same SPDT 2:1 topology and SOT-23-6 package but vary in on-state resistance, supply voltage range, and switch timing characteristics. The STG719STR offers the closest performance match with 4Ohm on-state resistance and identical supply voltage range. The MAX4561EUT+T provides extended supply voltage capability (up to 12V) but with significantly higher on-state resistance (70Ohm). The PI5A124TEX is classified as Last Time Buy, limiting future availability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (DG2001EDV-T1-GE3, MAX4561EUT+T, PI5A124TEX, STG719STR) are ROHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity level rating, matching the original part's regulatory compliance profile.

Q: What is the impact of on-state resistance differences on circuit performance?

A: On-state resistance directly affects signal attenuation, power dissipation, and bandwidth in switching applications. The DG2001DV-T1-E3 specifies 7Ohm maximum. The DG2001EDV-T1-GE3 (1.6Ohm) and STG719STR (4Ohm) provide lower resistance, reducing signal loss and power dissipation. The MAX4561EUT+T (70Ohm) introduces significantly higher resistance, which may degrade signal integrity in high-frequency or low-impedance applications. Circuit validation is required when substituting parts with substantially different on-state resistance values.

Q: Can the MAX4561EUT+T be used in applications requiring 5.5V supply voltage?

A: Yes. The MAX4561EUT+T supports supply voltage range of 1.8V ~ 12V, which encompasses the original part's 1.8V ~ 5.5V range. However, the significantly higher on-state resistance (70Ohm versus 7Ohm) may impact circuit performance and requires evaluation based on specific application requirements.

Q: What is the supply voltage compatibility range for the PI5A124TEX?

A: The PI5A124TEX operates across 2V ~ 6V supply voltage range. This range overlaps with the original part's 1.8V ~ 5.5V specification but does not support operation below 2V. Applications requiring operation at 1.8V supply voltage cannot use this substitute without circuit modification.

Q: Which substitute part offers the best long-term availability?

A: The DG2001EDV-T1-GE3, MAX4561EUT+T, and STG719STR are all in active production status, ensuring long-term availability. The PI5A124TEX is classified as Last Time Buy, indicating limited future availability and potential supply constraints.

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