DG429DN Equivalent & Substitute Parts Engineering Reference

Part Overview

The DG429DN is an interface IC switch manufactured by Vishay Siliconix, featuring a dual single-pole four-throw (SP4T) configuration. With a maximum on-state resistance of 100 Ohms, a fast switching time of 150ns, and a 20-PLCC (9x9) surface-mount package, it serves in multiplexing/demultiplexing applications. The DG429DN has been classified as obsolete, making it necessary to identify directly substitutable models based on strictly matching electrical, mechanical, and regulatory parameters.

Key Parameters

Manufacturer Part Number	Manufacturer	Category	Switch Circuit	Multiplexer/Demultiplexer Circuit	Number of Circuits	On-State Resistance (Max)	Channel-to-Channel Matching (ΔRon)	Voltage - Supply, Single (V+)	Voltage - Supply, Dual (V±)	Switch Time (Ton, Toff) (Max)	Charge Injection	Channel Capacitance (CS(off), CD(off))	Current - Leakage (IS(off)) (Max)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	RoHS Status	Moisture Sensitivity Level (MSL)
DG429DN	Vishay Siliconix	Interface	SP4T	4:1	2	100Ohm	5Ohm	12V	±15V	150ns, 150ns	1pC	11pF, 20pF	500pA	-40°C ~ 85°C (TA)	Surface Mount	20-LCC (J-Lead)	20-PLCC (9x9)	RoHS non-compliant	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the DG429DN are grouped and validated strictly by matching the following mandatory parameters: switch circuit configuration (SP4T), multiplexing/demultiplexing ratio (4:1), number of circuits (2), maximum on-state resistance (100Ohm), voltage supply specifications (12V single, ±15V dual), switching time (150ns), charge injection (1pC), channel capacitance, leakage current, operating temperature range (-40°C ~ 85°C), mounting type (surface mount), and package equivalence (20-LCC/20-PLCC). Compliance status and Moisture Sensitivity Level (MSL) are also considered.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Category	Switch Circuit	Multiplexer/Demultiplexer Circuit	Number of Circuits	On-State Resistance (Max)	Channel-to-Channel Matching (ΔRon)	Voltage - Supply, Single (V+)	Voltage - Supply, Dual (V±)	Switch Time (Ton, Toff) (Max)	Charge Injection	Channel Capacitance (CS(off), CD(off))	Current - Leakage (IS(off)) (Max)	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package	RoHS Status	Moisture Sensitivity Level (MSL)
DG429DN	Vishay Siliconix	Interface	SP4T	4:1	2	100Ohm	5Ohm	12V	±15V	150ns, 150ns	1pC	11pF, 20pF	500pA	-40°C ~ 85°C (TA)	Surface Mount	20-LCC (J-Lead)	20-PLCC (9x9)	RoHS non-compliant	1 (Unlimited)
DG429DN-E3	Vishay Siliconix	Interface	SP4T	4:1	2	100Ohm	5Ohm	12V	±15V	150ns, 150ns	1pC	11pF, 20pF	500pA	-40°C ~ 85°C (TA)	Surface Mount	20-LCC (J-Lead)	20-PLCC (9x9)	ROHS3 Compliant	1 (Unlimited)

Engineering Selection Recommendations

The DG429DN is classified as obsolete. DG429DN-E3 is listed as a direct substitute and is active. Both parts have identical key electrical and mechanical parameters per provided data. DG429DN-E3 is ROHS3 compliant, whereas the DG429DN is RoHS non-compliant. Moisture Sensitivity Level for both is 1 (Unlimited). When RoHS compliance or ongoing product availability is required, DG429DN-E3 is selectable based on provided certifications and regulatory status.

Frequently Asked Questions (FAQ)

Q1: What are the key substitution parameters for the DG429DN?
A1: Substitution requires precise matching on switch configuration, number of circuits, on-state resistance, supply voltages, switching time, charge injection, channel capacitance, leakage current, operating temperature, mounting type, and package size.

Q2: Are DG429DN and DG429DN-E3 pin-to-pin and electrically compatible?
A2: Both parts share identical electrical and mechanical parameters, including the same 20-PLCC (9x9) package, ensuring direct compatibility.

Q3: Are there any compliance differences between DG429DN and DG429DN-E3?
A3: The DG429DN-E3 is ROHS3 compliant while DG429DN is RoHS non-compliant. Other certifications, such as MSL, are identical.

Q4: Does the choice between DG429DN and DG429DN-E3 affect board design?
A4: No board changes are required for substitution, as both parts use the same mounting type and package.

Q5: What package code is used for both DG429DN and DG429DN-E3?
A5: Both use the 20-LCC (J-Lead) package case and are supplied in a 20-PLCC (9x9) device package.

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