DG411HSDY Equivalent & Substitute Parts

Part Overview

The DG411HSDY 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 functions as a precision analog multiplexer/demultiplexer with 1:1 circuit configuration and 35Ohm on-state resistance, designed for signal routing and switching applications across industrial and commercial temperature ranges (-40°C to 85°C).

The DG411HSDY is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and access components with active manufacturing status and improved compliance certifications such as RoHS3.

Key Parameters

Parameter	Value
Switch Circuit Configuration	SPST - NC (Single Pole Single Throw - Normally Closed)
Number of Circuits	4
Multiplexer/Demultiplexer Ratio	1:1
On-State Resistance (Max)	35Ohm
Voltage Supply - Single (V+)	13V ~ 44V
Voltage Supply - Dual (V±)	±5V ~ 20V
Switch Time - Ton/Toff (Max)	105ns / 80ns
Charge Injection	22pC
Channel Capacitance (CS(off) / CD(off))	12pF / 12pF
Current Leakage - IS(off) (Max)	250pA
Crosstalk	-88dB @ 1MHz
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the DG411HSDY is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Criteria:

Switch circuit configuration: SPST - NC with 4 circuits in 1:1 multiplexer/demultiplexer topology
Package type: 16-SOIC surface mount form factor (0.154", 3.90mm width)
On-state resistance: 35Ohm maximum (primary specification)
Supply voltage ranges: Single supply 13V ~ 44V or dual supply ±5V ~ 20V
Operating temperature: -40°C ~ 85°C
Leakage current: 250pA maximum

Substitute parts are grouped into two categories based on on-state resistance specification:

Group A - 35Ohm On-State Resistance (Direct Electrical Equivalents):

DG411HSDY-E3 (Vishay Siliconix, parametric equivalent, active status)
DG411DYZ (Renesas Electronics, active status)
DG411DYZ-T (Renesas Electronics, active status)
DG411FDY+ (Analog Devices Inc./Maxim Integrated, active status)
DG411FDY+T (Analog Devices Inc./Maxim Integrated, active status)
MAX351CSE+ (Analog Devices Inc./Maxim Integrated, alternative base product number, active status)

Group B - 45Ohm On-State Resistance (Functional Equivalents with Relaxed Resistance Specification):

DG411CY+ (Analog Devices Inc./Maxim Integrated, active status)
DG411CY+T (Analog Devices Inc./Maxim Integrated, active status)
DG411DY+ (Analog Devices Inc./Maxim Integrated, active status)
DG411DY+T (Analog Devices Inc./Maxim Integrated, active status)

Group B parts maintain identical circuit topology, package, and core functionality but specify 45Ohm maximum on-state resistance instead of 35Ohm. These are suitable for applications where the higher resistance specification does not violate system requirements.

Parameter Comparison

Part Number	Manufacturer	Status	Ron (Max)	V+ Range	V± Range	Ton/Toff (Max)	Charge Injection	IS(off) (Max)	Crosstalk	Temp Range	RoHS	Packaging
DG411HSDY	Vishay Siliconix	Obsolete	35Ohm	13V ~ 44V	±5V ~ 20V	105ns / 80ns	22pC	250pA	-88dB @ 1MHz	-40°C ~ 85°C	Non-compliant	Tube
DG411HSDY-E3	Vishay Siliconix	Active	35Ohm	13V ~ 44V	±5V ~ 20V	105ns / 80ns	22pC	250pA	-88dB @ 1MHz	-40°C ~ 85°C	RoHS3 Compliant	Tube
DG411DYZ	Renesas Electronics	Active	35Ohm	5V ~ 44V	±5V ~ 20V	175ns / 145ns	5pC	100pA	-85dB @ 1MHz	-40°C ~ 85°C	RoHS3 Compliant	Tube
DG411DYZ-T	Renesas Electronics	Active	35Ohm	5V ~ 44V	±5V ~ 20V	175ns / 145ns	5pC	100pA	-85dB @ 1MHz	-40°C ~ 85°C	RoHS3 Compliant	Cut Tape & Digi-Reel
DG411FDY+	Analog Devices Inc./Maxim	Active	35Ohm	9V ~ 36V	±4.5V ~ 20V	175ns / 145ns	5pC	250pA	-105dB @ 1MHz	-40°C ~ 85°C	RoHS3 Compliant	Tube
DG411FDY+T	Analog Devices Inc./Maxim	Active	35Ohm	9V ~ 36V	±4.5V ~ 20V	175ns / 145ns	5pC	250pA	-105dB @ 1MHz	-40°C ~ 85°C	RoHS3 Compliant	Tape & Reel
MAX351CSE+	Analog Devices Inc./Maxim	Active	35Ohm	10V ~ 30V	±4.5V ~ 20V	175ns / 145ns	5pC	250pA	-85dB @ 1MHz	0°C ~ 70°C	RoHS3 Compliant	Tube
DG411CY+	Analog Devices Inc./Maxim	Active	45Ohm	10V ~ 30V	±4.5V ~ 20V	175ns / 145ns	5pC	250pA	-85dB @ 1MHz	0°C ~ 70°C	RoHS3 Compliant	Tube
DG411CY+T	Analog Devices Inc./Maxim	Active	45Ohm	10V ~ 30V	±4.5V ~ 20V	175ns / 145ns	5pC	250pA	-85dB @ 1MHz	0°C ~ 70°C	RoHS3 Compliant	Tape & Reel
DG411DY+	Analog Devices Inc./Maxim	Active	45Ohm	10V ~ 30V	±4.5V ~ 20V	175ns / 145ns	5pC	250pA	-85dB @ 1MHz	-40°C ~ 85°C	RoHS3 Compliant	Tube
DG411DY+T	Analog Devices Inc./Maxim	Active	45Ohm	10V ~ 30V	±4.5V ~ 20V	175ns / 145ns	5pC	250pA	-85dB @ 1MHz	-40°C ~ 85°C	RoHS3 Compliant	Tape & Reel

Engineering Selection Recommendations

Primary Recommendation - Direct Electrical Equivalent:

DG411HSDY-E3 (Vishay Siliconix) is the parametric equivalent with identical electrical specifications and active product status. This part maintains the original 35Ohm on-state resistance, matching supply voltage ranges, and operating temperature specification. RoHS3 compliance addresses regulatory requirements absent in the obsolete original part.

Secondary Recommendations - 35Ohm On-State Resistance Group:

DG411DYZ and DG411DYZ-T (Renesas Electronics) provide active status with 35Ohm on-state resistance and full -40°C to 85°C operating range. These parts feature improved leakage current (100pA vs. 250pA) and lower charge injection (5pC vs. 22pC), with RoHS3 compliance. Supply voltage range expands to 5V minimum for single supply operation.

DG411FDY+ and DG411FDY+T (Analog Devices Inc./Maxim Integrated) maintain 35Ohm on-state resistance with superior crosstalk performance (-105dB vs. -88dB @ 1MHz) and RoHS3 compliance. Operating temperature range covers -40°C to 85°C. Single supply voltage range is 9V ~ 36V.

MAX351CSE+ (Analog Devices Inc./Maxim Integrated) provides 35Ohm on-state resistance with active status and RoHS3 compliance. Operating temperature range is restricted to 0°C ~ 70°C, limiting applicability to commercial temperature environments only.

Functional Equivalent - 45Ohm On-State Resistance Group:

DG411CY+, DG411CY+T, DG411DY+, and DG411DY+T (Analog Devices Inc./Maxim Integrated) are functional equivalents with 45Ohm on-state resistance specification. These parts are suitable for applications where the higher resistance does not violate signal integrity or power dissipation requirements. DG411DY+ and DG411DY+T extend operating temperature to -40°C ~ 85°C, matching the original part's range. All variants feature RoHS3 compliance and active product status.

Compliance and Supply Chain Considerations:

All recommended substitute parts carry RoHS3 compliance, addressing environmental and regulatory requirements. Parts with active product status ensure long-term availability and manufacturing continuity. Packaging options (Tube, Tape & Reel, Cut Tape & Digi-Reel) accommodate different assembly and procurement workflows.

Frequently Asked Questions (FAQ)

Q: Can DG411HSDY be directly replaced with DG411HSDY-E3?

A: Yes. DG411HSDY-E3 is the parametric equivalent with identical electrical specifications, 16-SOIC package, and -40°C to 85°C operating range. The primary difference is active product status and RoHS3 compliance versus the obsolete, non-compliant original part.

Q: What is the difference between 35Ohm and 45Ohm on-state resistance variants?

A: On-state resistance (Ron) determines the voltage drop across the switch during conduction. 35Ohm variants (DG411HSDY, DG411HSDY-E3, DG411DYZ, DG411FDY+, MAX351CSE+) produce lower voltage drop and power dissipation. 45Ohm variants (DG411CY+, DG411DY+) are suitable for applications where the higher resistance specification does not compromise system performance. Selection depends on signal level, current requirements, and thermal constraints.

Q: Are packaging options (Tube, Tape & Reel, Cut Tape) electrically equivalent?

A: Yes. Packaging designations (+, +T, -T) indicate distribution format only and do not affect electrical performance. Tube packaging suits lower-volume assembly. Tape & Reel (TR) and Cut Tape & Digi-Reel (CT) formats optimize high-volume automated assembly workflows.

Q: Which substitute part has the lowest leakage current?

A: DG411DYZ and DG411DYZ-T (Renesas Electronics) specify 100pA maximum leakage current, compared to 250pA for the original DG411HSDY and most alternatives. Lower leakage current reduces off-state signal coupling and improves isolation performance in precision analog applications.

Q: Can MAX351CSE+ be used in applications requiring -40°C operation?

A: No. MAX351CSE+ operating temperature range is 0°C ~ 70°C, restricting use to commercial temperature environments. For industrial temperature range (-40°C ~ 85°C) applications, select DG411HSDY-E3, DG411DYZ, DG411DYZ-T, DG411FDY+, DG411FDY+T, DG411DY+, or DG411DY+T.

Q: What is the supply voltage compatibility range for substitute parts?

A: Original DG411HSDY specifies 13V ~ 44V single supply or ±5V ~ 20V dual supply. DG411HSDY-E3 maintains identical ranges. DG411DYZ variants expand single supply minimum to 5V. DG411FDY+ variants specify 9V ~ 36V single supply. DG411CY+ and MAX351CSE+ restrict single supply to 10V ~ 30V. Verify substitute part voltage specifications against system design requirements before selection.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All recommended substitute parts carry RoHS3 compliance certification. The original DG411HSDY is RoHS non-compliant. RoHS3 compliance ensures compatibility with current environmental and regulatory requirements for electronic component manufacturing and distribution.

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