DG412DY Equivalent & Substitute Parts

Part Overview

The DG412DY is a 4-circuit SPST-NO IC switch manufactured by Vishay Siliconix, housed in a 16-SOIC surface mount package. This interface component features 35Ohm on-state resistance and operates across a wide supply voltage range of 5V to 44V (single supply) or ±5V to ±20V (dual supply). The DG412DY is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Active alternatives with identical or compatible electrical characteristics are available from multiple manufacturers.

Key Parameters

Parameter	Value
Switch Circuit Type	SPST - NO
Number of Circuits	4
Multiplexer/Demultiplexer Circuit	1:1
On-State Resistance (Max)	35Ohm
Voltage - Supply, Single (V+)	5V ~ 44V
Voltage - Supply, Dual (V±)	±5V ~ 20V
Switch Time (Ton, Toff) (Max)	175ns, 145ns
Charge Injection	5pC
Channel Capacitance (CS(off), CD(off))	9pF, 9pF
Current - Leakage (IS(off)) (Max)	250pA
Crosstalk	-85dB @ 1MHz
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the DG412DY is determined by strict equivalence across the following critical parameters: switch circuit type (SPST-NO), number of circuits (4), multiplexer configuration (1:1), package type (16-SOIC), and mounting method (surface mount). The on-state resistance, supply voltage range, and leakage current specifications define functional compatibility within application requirements.

Substitute parts are grouped into two categories:

Direct Equivalents (35Ohm On-State Resistance): Parts maintaining identical on-state resistance of 35Ohm with matching electrical performance across all switching parameters. These include DG412DY-E3 (Vishay Siliconix, active status, RoHS3 compliant) and DG412DYZ-T (Renesas Electronics, active status, RoHS3 compliant).

Functional Alternatives (Different On-State Resistance): Parts with different on-state resistance values but identical circuit topology and package. ADG432BRZ and ADG432BRZ-REEL (Analog Devices, 24Ohm) provide lower on-state resistance with improved switching speed. DG412CY+, DG412CY+T, DG412DY+, and DG412DY+T (Analog Devices/Maxim Integrated, 45Ohm) offer higher on-state resistance with extended temperature range. DG445DY+ and DG445DY+T (Analog Devices/Maxim Integrated, 85Ohm) provide significantly higher on-state resistance with improved crosstalk performance.

Parameter Comparison

Part Number	Manufacturer	Product Status	On-State Resistance (Max)	Voltage - Supply, Single (V+)	Voltage - Supply, Dual (V±)	Switch Time Ton/Toff (Max)	Current - Leakage (IS(off)) (Max)	Operating Temperature	Package	RoHS Status
DG412DY	Vishay Siliconix	Obsolete	35Ohm	5V ~ 44V	±5V ~ 20V	175ns, 145ns	250pA	-40°C ~ 85°C	16-SOIC	Non-compliant
DG412DY-E3	Vishay Siliconix	Active	35Ohm	5V ~ 44V	±5V ~ 20V	175ns, 145ns	250pA	-40°C ~ 85°C	16-SOIC	RoHS3 Compliant
DG412DYZ-T	Renesas Electronics	Active	35Ohm	5V ~ 44V	±5V ~ 20V	175ns, 145ns	100pA	-40°C ~ 85°C	16-SOIC	RoHS3 Compliant
ADG432BRZ	Analog Devices Inc.	Active	24Ohm	12V	±15V	90ns, 60ns	250pA	-40°C ~ 85°C	16-SOIC	RoHS3 Compliant
ADG432BRZ-REEL	Analog Devices Inc.	Active	24Ohm	12V	±15V	90ns, 60ns	250pA	-40°C ~ 85°C	16-SOIC	RoHS3 Compliant
DG412CY+	Analog Devices Inc./Maxim Integrated	Active	45Ohm	10V ~ 30V	±4.5V ~ 20V	175ns, 145ns	250pA	0°C ~ 70°C	16-SOIC	RoHS3 Compliant
DG412CY+T	Analog Devices Inc./Maxim Integrated	Active	45Ohm	10V ~ 30V	±4.5V ~ 20V	175ns, 145ns	250pA	0°C ~ 70°C	16-SOIC	RoHS3 Compliant
DG412DY+	Analog Devices Inc./Maxim Integrated	Active	45Ohm	10V ~ 30V	±4.5V ~ 20V	175ns, 145ns	250pA	-40°C ~ 85°C	16-SOIC	RoHS3 Compliant
DG412DY+T	Analog Devices Inc./Maxim Integrated	Active	45Ohm	10V ~ 30V	±4.5V ~ 20V	175ns, 145ns	250pA	-40°C ~ 85°C	16-SOIC	RoHS3 Compliant
DG445DY+	Analog Devices Inc./Maxim Integrated	Active	85Ohm	10V ~ 30V	±4.5V ~ 20V	250ns, 170ns	500pA	-40°C ~ 85°C	16-SOIC	RoHS3 Compliant
DG445DY+T	Analog Devices Inc./Maxim Integrated	Active	85Ohm	10V ~ 30V	±4.5V ~ 20V	250ns, 170ns	500pA	-40°C ~ 85°C	16-SOIC	RoHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

DG412DY-E3 is the primary direct substitute, offering identical electrical specifications with active product status and RoHS3 compliance. This part is available in tube packaging and maintains full compatibility with existing designs. DG412DYZ-T (Renesas Electronics) provides an alternative direct equivalent with improved leakage current performance (100pA versus 250pA) and is available in tape and reel packaging, suitable for high-volume production environments.

For Supply Voltage Constrained Applications:

ADG432BRZ and ADG432BRZ-REEL are suitable only for applications operating at fixed 12V single supply or ±15V dual supply. These parts offer superior switching speed (90ns/60ns versus 175ns/145ns) and lower on-state resistance (24Ohm), but the restricted voltage range limits their applicability to designs not requiring the extended 5V to 44V range of the original DG412DY.

For Extended Temperature Range Applications:

DG412DY+ and DG412DY+T maintain the full -40°C to 85°C operating temperature range of the original part while offering active status and RoHS3 compliance. These parts feature 45Ohm on-state resistance and are available in both tube and tape & reel packaging.

For Improved Crosstalk Performance:

DG445DY+ and DG445DY+T provide superior crosstalk isolation (-100dB versus -85dB at 1MHz) with the trade-off of higher on-state resistance (85Ohm) and increased leakage current (500pA). These parts are suitable for applications where signal isolation is critical.

All recommended active substitutes carry RoHS3 compliance and REACH unaffected status, meeting modern regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can DG412DY-E3 be used as a direct drop-in replacement for DG412DY?

A: Yes. DG412DY-E3 maintains identical electrical specifications including on-state resistance (35Ohm), supply voltage range (5V to 44V single, ±5V to ±20V dual), switching times, and operating temperature range (-40°C to 85°C). The primary difference is product status (active versus obsolete) and RoHS3 compliance. Packaging differs (tube for DG412DY-E3 versus unspecified for DG412DY), so verify reel or tube requirements for your procurement process.

Q: What is the difference between DG412DYZ-T and DG412DY-E3?

A: Both are direct electrical equivalents with 35Ohm on-state resistance and identical switching characteristics. DG412DYZ-T (Renesas) offers lower leakage current (100pA versus 250pA) and comes in tape & reel packaging, making it preferable for automated assembly. DG412DY-E3 (Vishay Siliconix) is available in tube packaging. Selection depends on packaging requirements and leakage current specifications for your application.

Q: Why would I choose ADG432BRZ over DG412DY-E3?

A: ADG432BRZ is suitable only if your application operates at fixed 12V (single supply) or ±15V (dual supply). It offers faster switching speed (90ns/60ns versus 175ns/145ns) and lower on-state resistance (24Ohm). If your design requires the extended voltage range of DG412DY (5V to 44V), ADG432BRZ is not compatible.

Q: Can DG445DY+ replace DG412DY in all applications?

A: No. DG445DY+ has significantly different electrical characteristics: 85Ohm on-state resistance (versus 35Ohm), higher leakage current (500pA versus 250pA), and slower switching times (250ns/170ns versus 175ns/145ns). Use DG445DY+ only in applications where these specifications are acceptable or beneficial, particularly where improved crosstalk isolation (-100dB) is required.

Q: What packaging options are available for substitutes?

A: DG412DY-E3 is available in tube packaging. DG412DYZ-T, ADG432BRZ-REEL, DG412CY+T, DG412DY+T, and DG445DY+T are available in tape & reel (TR) or cut tape packaging. DG412CY+, DG412DY+, and DG445DY+ are available in tube packaging. Select based on your assembly process requirements.

Q: Are all substitute parts RoHS3 compliant?

A: All active substitute parts listed are RoHS3 compliant and REACH unaffected. The original DG412DY is RoHS non-compliant. If regulatory compliance is required, select from the active substitutes.

Q: What is the inventory status of substitute parts?

A: DG412DY-E3 has 2,288 units in stock. DG412DYZ-T has 3,700 units. ADG432BRZ has 1,510 units, and ADG432BRZ-REEL has 3,200 units. DG412DY+T has the highest availability at 7,102 units. Verify current inventory with your supplier before finalizing procurement decisions.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message