DG201HSDY-T1 Equivalent & Substitute Parts

Part Overview

The DG201HSDY-T1 is a 4-circuit SPST-NC (Single Pole Single Throw - Normally Closed) analog switch IC manufactured by Vishay Siliconix in 16-SOIC surface mount packaging. This component features 50Ohm on-state resistance and operates across supply voltages of 13V to 36V (single supply) or ±7V to ±22V (dual supply). The part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support.

Key Parameters

Parameter	Value
Switch Circuit Type	SPST - NC
Number of Circuits	4
Multiplexer/Demultiplexer Configuration	1:1
On-State Resistance (Max)	50Ohm
Channel-to-Channel Matching (ΔRon)	1.5Ohm
Voltage - Supply, Single (V+)	13V ~ 36V
Voltage - Supply, Dual (V±)	±7V ~ 22V
Switch Time (Ton, Toff) (Max)	60ns, 50ns
Charge Injection	-5pC
Channel Capacitance (CS(off), CD(off))	5pF
Current - Leakage (IS(off)) (Max)	1nA
Crosstalk	-100dB @ 100kHz
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the DG201HSDY-T1 is determined by the following critical parameters:

Primary Substitution Criteria:

Switch circuit type (SPST - NC)
Number of circuits (4)
Multiplexer configuration (1:1)
Package type (16-SOIC surface mount)
Operating temperature range (-40°C ~ 85°C)

Secondary Compatibility Factors:

On-state resistance and matching tolerance
Supply voltage range compatibility
Switch timing characteristics
Leakage current specifications
Crosstalk performance

Substitute parts are grouped into three categories based on on-state resistance: 50Ohm equivalents (direct replacements), 90Ohm alternatives (Analog Devices ADG201 series), and higher resistance options (135Ohm and 200Ohm variants). Selection depends on circuit requirements for on-state resistance and supply voltage compatibility.

Parameter Comparison

Part Number	Manufacturer	On-State Resistance (Max)	ΔRon (Max)	V+ Supply	V± Supply	Ton/Toff (Max)	Charge Injection	Leakage (Max)	Crosstalk	Product Status	RoHS Status
DG201HSDY-T1	Vishay Siliconix	50Ohm	1.5Ohm	13V ~ 36V	±7V ~ 22V	60ns, 50ns	-5pC	1nA	-100dB @ 100kHz	Obsolete	RoHS non-compliant
DG201HSDY-T1-E3	Vishay Siliconix	50Ohm	1.5Ohm	13V ~ 36V	±7V ~ 22V	60ns, 50ns	-5pC	1nA	-100dB @ 100kHz	Active	ROHS3 Compliant
ADG201HSKRZ	Analog Devices Inc.	50Ohm	1.5Ohm	10.8V ~ 16.5V	±13.5V ~ 16.5V	50ns, 50ns	10pC	1nA	-86dB @ 100kHz	Active	ROHS3 Compliant
ADG201HSKRZ-REEL	Analog Devices Inc.	50Ohm	1.5Ohm	10.8V ~ 16.5V	±13.5V ~ 16.5V	50ns, 50ns	10pC	1nA	-86dB @ 100kHz	Active	ROHS3 Compliant
ADG201AKRZ	Analog Devices Inc.	90Ohm	4.5Ohm	10V ~ 15V	±10V ~ 15V	300ns, 250ns	20pC	2nA	-80dB @ 100kHz	Active	ROHS3 Compliant
ADG201AKRZ-REEL	Analog Devices Inc.	90Ohm	4.5Ohm	10V ~ 15V	±10V ~ 15V	300ns, 250ns	20pC	2nA	-80dB @ 100kHz	Active	ROHS3 Compliant
ADG201AKRZ-REEL7	Analog Devices Inc.	90Ohm	4.5Ohm	10V ~ 15V	±10V ~ 15V	300ns, 250ns	20pC	2nA	-80dB @ 100kHz	Active	ROHS3 Compliant
ALD4211SCL	Advanced Linear Devices Inc.	135Ohm	2.7Ohm	3V ~ 12V	±1.5V ~ 6V	130ns, 130ns	0.2pC	100pA	-90dB @ 100kHz	Active	ROHS3 Compliant
DG201ACSE+	Analog Devices Inc./Maxim Integrated	200Ohm	—	—	±4.5V ~ 18V	600ns, 450ns	20pC	5nA	-90dB @ 100kHz	Active	ROHS3 Compliant
DG201ACSE+T	Analog Devices Inc./Maxim Integrated	200Ohm	—	—	±4.5V ~ 18V	600ns, 450ns	20pC	5nA	-90dB @ 100kHz	Active	ROHS3 Compliant
DG201ADY+	Analog Devices Inc./Maxim Integrated	200Ohm	—	—	±4.5V ~ 18V	600ns, 450ns	20pC	5nA	-90dB @ 100kHz	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent (Recommended for Obsolescence Replacement):

DG201HSDY-T1-E3 is the primary equivalent, offering identical electrical specifications with active product status and ROHS3 compliance. This part maintains the 50Ohm on-state resistance, matching tolerance, and full supply voltage range of the original DG201HSDY-T1. The transition from Tape & Reel to standard packaging represents the only functional difference.

50Ohm Alternatives (Supply Voltage Dependent):

ADG201HSKRZ and ADG201HSKRZ-REEL provide 50Ohm on-state resistance with improved switch timing (50ns vs. 60ns/50ns). These parts are suitable only for applications operating within the narrower supply voltage range of 10.8V to 16.5V (single) or ±13.5V to ±16.5V (dual). Both are ROHS3 compliant and active products.

90Ohm Alternatives (Broader Supply Range):

ADG201AKRZ, ADG201AKRZ-REEL, and ADG201AKRZ-REEL7 operate across 10V to 15V (single) or ±10V to ±15V (dual) supply ranges. The increased on-state resistance (90Ohm) and matching tolerance (4.5Ohm) require circuit validation. Slower switch timing (300ns/250ns) may impact high-frequency applications. All variants are ROHS3 compliant and active.

Lower Voltage Alternative (3V to 12V Operation):

ALD4211SCL from Advanced Linear Devices operates at significantly lower supply voltages (3V to 12V single, ±1.5V to ±6V dual) with 135Ohm on-state resistance. This part is suitable only for low-voltage applications and requires full electrical validation due to different performance characteristics.

Higher Resistance Variants (200Ohm):

DG201ACSE+, DG201ACSE+T, and DG201ADY+ feature 200Ohm on-state resistance and operate only on dual supply (±4.5V to ±18V). These parts are applicable only when higher on-state resistance is acceptable and dual supply operation is required. Operating temperature range varies: DG201ACSE+ and DG201ACSE+T are rated 0°C to 70°C, while DG201ADY+ extends to -40°C to 85°C.

Frequently Asked Questions (FAQ)

Q: Can I directly replace DG201HSDY-T1 with DG201HSDY-T1-E3?

A: Yes. DG201HSDY-T1-E3 is the direct parametric equivalent with identical electrical specifications. The only difference is packaging format (Tape & Reel) and active product status with ROHS3 compliance. No circuit modifications are required.

Q: What is the key difference between 50Ohm and 90Ohm variants?

A: On-state resistance directly affects signal attenuation and power dissipation. The 50Ohm variants (DG201HSDY-T1-E3, ADG201HSKRZ series) provide lower insertion loss suitable for precision analog switching. The 90Ohm variants (ADG201AKRZ series) are acceptable for applications tolerating higher resistance. Supply voltage compatibility must also be verified.

Q: Are ADG201HSKRZ parts compatible with the original supply voltage range?

A: No. ADG201HSKRZ operates within 10.8V to 16.5V (single) or ±13.5V to ±16.5V (dual), which is narrower than the original DG201HSDY-T1 range of 13V to 36V (single) or ±7V to ±22V (dual). Verify your circuit operates within the ADG201HSKRZ voltage window before substitution.

Q: Can I use ALD4211SCL in a design originally specified for DG201HSDY-T1?

A: Only if your circuit operates at 3V to 12V (single) or ±1.5V to ±6V (dual) supply. The ALD4211SCL is designed for low-voltage applications and is not compatible with the original part's higher voltage requirements. Full circuit validation is required.

Q: What packaging options are available for the 50Ohm equivalent?

A: DG201HSDY-T1-E3 is available in Tape & Reel (TR) packaging. ADG201HSKRZ is available in Tube packaging, while ADG201HSKRZ-REEL is available in Cut Tape (CT) & Digi-Reel® format. All maintain the 16-SOIC surface mount package footprint.

Q: Why do some parts list only dual supply voltage (V±) without single supply (V+)?

A: DG201ACSE+, DG201ACSE+T, and DG201ADY+ are designed exclusively for dual supply operation. These parts cannot be used in single supply circuits. Verify your application requires dual supply before selecting these alternatives.

Q: How does switch timing affect my application?

A: Switch timing (Ton/Toff) determines how quickly the analog switch responds to control signals. The original DG201HSDY-T1 specifies 60ns/50ns. Faster alternatives like ADG201HSKRZ (50ns/50ns) improve response time, while slower parts like ADG201AKRZ (300ns/250ns) may introduce delays in high-frequency switching applications. Verify timing requirements before substitution.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts are ROHS3 compliant. The original DG201HSDY-T1 is RoHS non-compliant. If RoHS compliance is required, DG201HSDY-T1-E3 is the appropriate replacement.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message