DG612DY Equivalent & Substitute Parts

Part Overview

The DG612DY is a 4-circuit SPST-NO IC switch manufactured by Vishay Siliconix, housed in a 16-SOIC package with 45Ohm on-state resistance. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The DG612DY operates across dual supply voltages (±10V to ±15V) or single supply (10V to 18V) with switching times of 35ns (Ton) and 25ns (Toff), supporting applications requiring fast analog signal switching with low crosstalk performance.

Key Parameters

Parameter	DG612DY
Switch Circuit	SPST - NO
Number of Circuits	4
Multiplexer/Demultiplexer Circuit	1:1
On-State Resistance (Max)	45Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm
Voltage - Supply, Single (V+)	10V ~ 18V
Voltage - Supply, Dual (V±)	±10V ~ 15V
Switch Time (Ton, Toff) (Max)	35ns, 25ns
-3dB Bandwidth	500MHz
Charge Injection	4pC
Channel Capacitance (CS(off), CD(off))	3pF, 2pF
Current - Leakage (IS(off)) (Max)	250pA
Crosstalk	-87dB @ 5MHz
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 for the DG612DY is determined by the following critical parameters:

Mandatory Compatibility Criteria:

Switch circuit type: SPST - NO
Number of circuits: 4
Multiplexer/Demultiplexer configuration: 1:1
Package type: 16-SOIC (0.154", 3.90mm Width)
Mounting type: Surface Mount
Operating temperature range: Must encompass or match -40°C ~ 85°C

Electrical Performance Parameters:

On-state resistance (45Ohm nominal for direct equivalents; 35Ohm acceptable for lower-resistance applications)
Supply voltage compatibility: Single supply 10V ~ 18V or dual supply ±10V ~ 15V
Switch timing: Ton/Toff specifications
Leakage current: 250pA maximum
Crosstalk performance: -85dB or better

Substitute parts are grouped into two categories:

Category 1: Direct Equivalents (45Ohm On-State Resistance) Parts maintaining the original 45Ohm specification with compatible electrical and thermal characteristics.

Category 2: Lower-Resistance Alternatives (35Ohm On-State Resistance) Parts with reduced on-state resistance, suitable for applications where lower insertion loss is beneficial and supply voltage compatibility is maintained.

Parameter Comparison

Parameter	DG612DY	ADG412BRZ-REEL	ADG412BRZ-REEL7	DG412CY+	DG412CY+T	DG412DY+	DG412DY+T	DG412DYZ	DG412DYZ-T	MAX352ESE+	MAX4605CSE+
Manufacturer	Vishay Siliconix	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Renesas Electronics Corporation	Renesas Electronics Corporation	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Switch Circuit	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO
Number of Circuits	4	4	4	4	4	4	4	4	4	4	4
Multiplexer/Demultiplexer Circuit	1:1	1:1	1:1	1:1	1:1	1:1	1:1	1:1	1:1	1:1	1:1
On-State Resistance (Max)	45Ohm	35Ohm	35Ohm	45Ohm	45Ohm	45Ohm	45Ohm	35Ohm	35Ohm	35Ohm	4Ohm
Voltage - Supply, Single (V+)	10V ~ 18V	12V	12V	10V ~ 30V	10V ~ 30V	10V ~ 30V	10V ~ 30V	5V ~ 44V	5V ~ 44V	10V ~ 30V	4.5V ~ 36V
Voltage - Supply, Dual (V±)	±10V ~ 15V	±15V	±15V	±4.5V ~ 20V	±4.5V ~ 20V	±4.5V ~ 20V	±4.5V ~ 20V	±5V ~ 20V	±5V ~ 20V	±4.5V ~ 20V	±4.5V ~ 20V
Switch Time (Ton, Toff) (Max)	35ns, 25ns	175ns, 145ns	175ns, 145ns	175ns, 145ns	175ns, 145ns	175ns, 145ns	175ns, 145ns	175ns, 145ns	175ns, 145ns	175ns, 145ns	120ns, 130ns
Charge Injection	4pC	5pC	5pC	5pC	5pC	5pC	5pC	5pC	5pC	5pC	225pC
Channel Capacitance (CS(off), CD(off))	3pF, 2pF	9pF, 9pF	9pF, 9pF	9pF, 9pF	9pF, 9pF	9pF, 9pF	9pF, 9pF	9pF, 9pF	9pF, 9pF	9pF, 9pF	34pF, 34pF
Current - Leakage (IS(off)) (Max)	250pA	250pA	250pA	250pA	250pA	250pA	250pA	100pA	100pA	250pA	500pA
Crosstalk	-87dB @ 5MHz	-85dB @ 1MHz	-85dB @ 1MHz	-85dB @ 1MHz	-85dB @ 1MHz	-85dB @ 1MHz	-85dB @ 1MHz	-85dB @ 1MHz	-85dB @ 1MHz	-85dB @ 1MHz	-60dB @ 1MHz
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C
Package / Case	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitutes (45Ohm On-State Resistance Category):

DG412DY+ and DG412DY+T are the preferred direct equivalents for the DG612DY. Both parts maintain the 45Ohm on-state resistance specification, support the extended operating temperature range (-40°C to 85°C), and are manufactured by Analog Devices Inc./Maxim Integrated with active product status and ROHS3 compliance. DG412DY+T is supplied in Tape & Reel packaging with 7102 units in stock, while DG412DY+ is supplied in Tube packaging with 1104 units in stock. Both support single supply voltages from 10V to 30V and dual supply voltages from ±4.5V to ±20V, providing broader supply compatibility than the original part.

Secondary Substitutes (35Ohm On-State Resistance Category):

DG412DYZ and DG412DYZ-T, manufactured by Renesas Electronics Corporation, offer 35Ohm on-state resistance with superior leakage current performance (100pA maximum versus 250pA). These parts support the widest single supply voltage range (5V to 44V) and maintain the full operating temperature range (-40°C to 85°C). DG412DYZ-T is supplied in Tape & Reel packaging with 3700 units in stock. These parts are suitable for applications where lower insertion loss is acceptable and extended supply voltage range is beneficial.

ADG412BRZ-REEL and ADG412BRZ-REEL7, both manufactured by Analog Devices Inc., provide 35Ohm on-state resistance with active product status and ROHS3 compliance. ADG412BRZ-REEL7 offers the highest inventory availability (10800 units) in Cut Tape & Digi-Reel packaging. These parts support dual supply voltages of ±15V and single supply of 12V, with operating temperature range of -40°C to 85°C.

MAX352ESE+, manufactured by Analog Devices Inc./Maxim Integrated, provides 35Ohm on-state resistance with channel-to-channel matching of 2Ohm (matching the original DG612DY specification). This part supports single supply from 10V to 30V and dual supply from ±4.5V to ±20V, with full operating temperature range (-40°C to 85°C) and ROHS3 compliance.

Alternative for Ultra-Low Resistance Applications:

MAX4605CSE+ offers 4Ohm on-state resistance for applications requiring minimal insertion loss. This part supports the broadest single supply voltage range (4.5V to 36V) and operates from 0°C to 70°C. The significantly lower on-state resistance is accompanied by higher charge injection (225pC), increased channel capacitance (34pF), and reduced crosstalk performance (-60dB @ 1MHz), making it suitable only for applications where these trade-offs are acceptable.

Compliance Considerations:

All substitute parts listed are ROHS3 compliant and have active product status, addressing the obsolescence of the original DG612DY. The original part's RoHS non-compliance status is resolved through substitution with any of the recommended alternatives.

Frequently Asked Questions (FAQ)

Q: Can DG412DY+ directly replace DG612DY in existing designs?

A: Yes. DG412DY+ maintains the 45Ohm on-state resistance, 4-circuit SPST-NO configuration, 16-SOIC package, and -40°C to 85°C operating temperature range. The primary differences are improved supply voltage range (10V to 30V single supply versus 10V to 18V) and ROHS3 compliance. Slower switching times (175ns/145ns versus 35ns/25ns) and higher channel capacitance (9pF versus 3pF/2pF) must be evaluated for timing-critical applications.

Q: What is the difference between DG412DYZ and DG412DY+?

A: DG412DYZ offers 35Ohm on-state resistance (versus 45Ohm), lower leakage current (100pA versus 250pA), and wider single supply voltage range (5V to 44V versus 10V to 30V). Both maintain the 16-SOIC package and -40°C to 85°C operating temperature. DG412DYZ is manufactured by Renesas Electronics Corporation, while DG412DY+ is manufactured by Analog Devices Inc./Maxim Integrated. Selection depends on whether lower insertion loss or extended supply voltage range is required.

Q: Is MAX4605CSE+ compatible with DG612DY applications?

A: MAX4605CSE+ shares the 4-circuit SPST-NO configuration and 16-SOIC package but differs significantly in electrical performance. The 4Ohm on-state resistance is substantially lower, but charge injection increases to 225pC (versus 4pC), channel capacitance increases to 34pF (versus 3pF/2pF), and crosstalk degrades to -60dB (versus -87dB). Operating temperature is limited to 0°C to 70°C. This part is suitable only for applications where ultra-low resistance is prioritized over signal integrity and temperature range.

Q: What packaging options are available for substitutes?

A: Substitute parts are available in three packaging formats: Tube (DG412CY+, DG412DY+, DG412DYZ, MAX352ESE+, MAX4605CSE+), Tape & Reel (DG412CY+T, DG412DY+T, DG412DYZ-T, ADG412BRZ-REEL), and Cut Tape & Digi-Reel (ADG412BRZ-REEL7). All maintain the 16-SOIC (0.154", 3.90mm Width) case outline. Selection depends on procurement volume and assembly process requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant, addressing the RoHS non-compliance status of the original DG612DY. This compliance status is maintained across all packaging options and manufacturers.

Q: Which substitute offers the best inventory availability?

A: ADG412BRZ-REEL7 offers the highest inventory availability with 10800 units in stock, supplied in Cut Tape & Digi-Reel packaging. DG412DY+T follows with 7102 units in Tape & Reel packaging. Both parts are active products with ROHS3 compliance and -40°C to 85°C operating temperature range.

Q: How do switching times compare across substitutes?

A: The original DG612DY specifies 35ns (Ton) and 25ns (Toff). Most substitutes (ADG412BRZ-REEL, ADG412BRZ-REEL7, DG412CY+, DG412CY+T, DG412DY+, DG412DY+T, DG412DYZ, DG412DYZ-T, MAX352ESE+) specify 175ns (Ton) and 145ns (Toff). MAX4605CSE+ offers faster switching at 120ns (Ton) and 130ns (Toff). Applications requiring the original switching speed must evaluate the impact of slower alternatives on system performance.

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