DG413LDY-T1 Equivalent & Substitute Parts

Part Overview

The DG413LDY-T1 is a 4-circuit SPST-NO/NC analog switch IC manufactured by Vishay Siliconix in 16-SOIC surface mount packaging. This device features a maximum on-state resistance of 17Ohm and operates across supply voltages of 2.7V to 12V (single supply) or ±3V to ±6V (dual supply). The part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility through matching circuit topology, package form factor, and electrical performance within acceptable operating parameters.

Key Parameters

Parameter	DG413LDY-T1
Manufacturer	Vishay Siliconix
Switch Circuit	SPST - NO/NC
Number of Circuits	4
Multiplexer/Demultiplexer Circuit	1:1
On-State Resistance (Max)	17Ohm
Voltage - Supply, Single (V+)	2.7V ~ 12V
Voltage - Supply, Dual (V±)	±3V ~ 6V
Switch Time (Ton, Toff) (Max)	19ns, 12ns
-3dB Bandwidth	280MHz
Charge Injection	5pC
Channel Capacitance (CS(off), CD(off))	5pF, 6pF
Current - Leakage (IS(off)) (Max)	250pA
Crosstalk	-95dB @ 1MHz
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following mandatory criteria:

Functional Requirements:

Switch circuit topology: SPST - NO/NC (4 circuits, 1:1 multiplexer configuration)
Package form factor: 16-SOIC surface mount
Operating temperature range: Minimum -40°C ~ 85°C
On-state resistance: Must not exceed application requirements

Electrical Compatibility:

Supply voltage ranges must encompass or exceed the original specification
Leakage current, charge injection, and crosstalk must meet or exceed performance levels
Channel capacitance values must be compatible with circuit design

Compliance & Availability:

Active product status preferred for long-term availability
RoHS3 compliance required for new designs
Adequate inventory for production requirements

Substitute parts are grouped by on-state resistance performance tier, as this parameter directly impacts signal integrity and power dissipation in switching applications.

Parameter Comparison

Parameter	DG413LDY-T1	ADG413BRZ / ADG413BRZ-REEL	ADG433BRZ / ADG433BRZ-REEL	ADG453BRZ / ADG453BRZ-REEL / ADG453BRZ-REEL7	DG413CY+ / DG413CY+T / DG413DY+
Manufacturer	Vishay Siliconix	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc./Maxim Integrated
Switch Circuit	SPST - NO/NC	SPST - NO/NC	SPST - NO/NC	SPST - NO/NC	SPST - NO/NC
Number of Circuits	4	4	4	4	4
On-State Resistance (Max)	17Ohm	35Ohm	24Ohm	5Ohm	45Ohm
Voltage - Supply, Single (V+)	2.7V ~ 12V	12V	12V	12V	10V ~ 30V
Voltage - Supply, Dual (V±)	±3V ~ 6V	±15V	±15V	±4.5V ~ 20V	±4.5V ~ 20V
Switch Time (Ton, Toff) (Max)	19ns, 12ns	175ns, 145ns	90ns, 60ns	180ns, 140ns	175ns, 145ns
-3dB Bandwidth	280MHz	—	—	—	—
Charge Injection	5pC	5pC	5pC	20pC	5pC
Channel Capacitance (CS(off), CD(off))	5pF, 6pF	9pF, 9pF	9pF, 9pF	37pF, 37pF	9pF, 9pF
Current - Leakage (IS(off)) (Max)	250pA	250pA	250pA	500pA	250pA
Crosstalk	-95dB @ 1MHz	-85dB @ 1MHz	-85dB @ 1MHz	-90dB @ 1MHz	-85dB @ 1MHz
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C (DG413DY+) / 0°C ~ 70°C (DG413CY+, DG413CY+T)
Package / Case	16-SOIC	16-SOIC	16-SOIC	16-SOIC	16-SOIC
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Recommended for New Designs):

ADG453BRZ, ADG453BRZ-REEL, and ADG453BRZ-REEL7 are the preferred substitutes for applications requiring low on-state resistance (5Ohm maximum). These parts offer superior signal integrity with the lowest on-state resistance among available options, reducing power dissipation and signal attenuation. All variants are active products with ROHS3 compliance and full -40°C to 85°C operating temperature range. ADG453BRZ-REEL and ADG453BRZ-REEL7 provide tape and reel packaging for automated assembly.

ADG433BRZ and ADG433BRZ-REEL provide a mid-range on-state resistance of 24Ohm with improved switch timing (90ns/60ns) compared to higher-resistance alternatives. These parts maintain ROHS3 compliance and active product status with adequate inventory availability.

Secondary Substitutes (Conditional Use):

ADG413BRZ and ADG413BRZ-REEL offer 35Ohm on-state resistance with ROHS3 compliance and active product status. These parts are suitable for applications where moderate on-state resistance is acceptable and cost optimization is a priority.

DG413DY+ provides 45Ohm on-state resistance with extended supply voltage range (10V ~ 30V single supply) and full -40°C to 85°C operating temperature. This part maintains ROHS3 compliance and active status, making it suitable for designs requiring higher supply voltages.

DG413CY+ and DG413CY+T are functionally equivalent to DG413DY+ but operate within a reduced temperature range (0°C ~ 70°C). These parts are suitable only for applications with relaxed temperature requirements.

Compliance Consideration:

The original DG413LDY-T1 is RoHS non-compliant. All recommended substitutes are ROHS3 compliant, meeting current regulatory requirements for new product designs and manufacturing.

Frequently Asked Questions (FAQ)

Q: Can ADG453BRZ directly replace DG413LDY-T1 in existing designs?

A: ADG453BRZ is functionally compatible as a direct replacement. Both devices feature 4-circuit SPST-NO/NC topology in 16-SOIC packaging with identical pinout. The primary difference is on-state resistance (5Ohm vs. 17Ohm), which reduces signal attenuation and power dissipation. Verify that your circuit design can accommodate the lower resistance value and higher capacitance (37pF vs. 5pF/6pF).

Q: What is the difference between ADG413BRZ and ADG413BRZ-REEL?

A: Both parts are electrically identical. ADG413BRZ is supplied in tube packaging for manual handling, while ADG413BRZ-REEL is supplied in cut tape and Digi-Reel format for automated pick-and-place assembly. Select based on your manufacturing process requirements.

Q: Why does DG413DY+ have a higher on-state resistance (45Ohm) than the original part (17Ohm)?

A: DG413DY+ is designed for applications requiring extended supply voltage range (10V ~ 30V) and broader operating temperature (-40°C ~ 85°C). The higher on-state resistance is a trade-off inherent to this design. For applications where the original 17Ohm resistance is critical, ADG453BRZ (5Ohm) or ADG433BRZ (24Ohm) are more suitable alternatives.

Q: Are all substitute parts RoHS compliant?

A: Yes. All recommended substitute parts (ADG413BRZ, ADG433BRZ, ADG453BRZ, DG413CY+, DG413CY+T, DG413DY+) are ROHS3 compliant. The original DG413LDY-T1 is RoHS non-compliant, making substitution necessary for designs subject to RoHS regulations.

Q: What is the impact of higher channel capacitance in ADG453BRZ (37pF vs. 5pF/6pF)?

A: Higher channel capacitance increases parasitic loading on signal paths, which may affect high-frequency performance and introduce additional phase shift. For applications operating near the bandwidth limits of the original device (280MHz), verify that the substitute part's capacitance is compatible with your circuit design. ADG433BRZ (9pF) or ADG413BRZ (9pF) provide lower capacitance alternatives if this is a concern.

Q: Can I use DG413CY+ in applications requiring full -40°C to 85°C operation?

A: No. DG413CY+ and DG413CY+T operate only within 0°C to 70°C. For full -40°C to 85°C temperature range, use DG413DY+, ADG413BRZ, ADG433BRZ, or ADG453BRZ variants.

Q: Which substitute offers the best balance of on-state resistance and switching speed?

A: ADG433BRZ provides optimal balance with 24Ohm on-state resistance and fast switching times (90ns/60ns). This part bridges the performance gap between low-resistance, slower alternatives (ADG413BRZ at 35Ohm) and high-performance, lower-resistance options (ADG453BRZ at 5Ohm).

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