DG442BDJ Equivalent & Substitute Parts

Part Overview

The DG442BDJ is a 4-circuit SPST-NO IC switch manufactured by Vishay Siliconix, designed for general-purpose switching applications requiring low on-state resistance and fast switching times. This part operates across a wide supply voltage range (13V–36V single supply, ±7V–22V dual supply) and features 80Ω maximum on-state resistance with 220ns/120ns switching characteristics. The DG442BDJ is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support.

Key Parameters

Parameter	DG442BDJ
Manufacturer	Vishay Siliconix
Switch Circuit	SPST - NO
Number of Circuits	4
Multiplexer/Demultiplexer Circuit	1:1
On-State Resistance (Max)	80Ω
Channel-to-Channel Matching (ΔRon)	2Ω
Voltage - Supply, Single (V+)	13V – 36V
Voltage - Supply, Dual (V±)	±7V – 22V
Switch Time (Ton, Toff) (Max)	220ns, 120ns
Charge Injection	-1pC
Channel Capacitance (CS(off), CD(off))	4pF, 4pF
Current - Leakage (IS(off)) (Max)	500pA
Crosstalk	-95dB @ 100kHz
Operating Temperature	-40°C – 85°C
Package / Case	16-DIP (0.300", 7.62mm)
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the DG442BDJ is determined by the following critical parameters:

Switch topology: SPST-NO configuration with 4 circuits in 1:1 multiplexer arrangement
Package compatibility: 16-DIP through-hole form factor (0.300", 7.62mm)
On-state resistance range: 70Ω–135Ω (acceptable variance from 80Ω nominal)
Supply voltage compatibility: Parts must support overlapping or equivalent voltage ranges
Switching speed: Ton/Toff specifications must meet or exceed application requirements
Leakage current and crosstalk: Must remain within acceptable limits for signal integrity
Operating temperature range: Must cover -40°C to 85°C or be suitable for the intended application environment
Compliance: ROHS3 compliance and REACH unaffected status required

Five substitute parts meet these criteria across different performance and voltage profiles.

Parameter Comparison

Parameter	DG442BDJ	ADG442BNZ	ALD4202MPCL	ALD4212PCL	MAX362CPE+	MAX4552CPE+
Manufacturer	Vishay Siliconix	Analog Devices Inc.	Advanced Linear Devices Inc.	Advanced Linear Devices Inc.	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Switch Circuit	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO	SPST - NO
Number of Circuits	4	4	4	4	4	4
On-State Resistance (Max)	80Ω	70Ω	135Ω	135Ω	85Ω	120Ω
Channel-to-Channel Matching (ΔRon)	2Ω	—	2.7Ω	2.7Ω	2Ω (Max)	1Ω
Voltage - Supply, Single (V+)	13V – 36V	12V	3V – 12V	3V – 12V	10V – 30V	2V – 12V
Voltage - Supply, Dual (V±)	±7V – 22V	±15V	±1.5V – 6V	±1.5V – 6V	±4.5V – 20V	±2V – 6V
Switch Time (Ton, Toff) (Max)	220ns, 120ns	110ns, 60ns	240ns, 130ns	130ns, 130ns	250ns, 120ns	110ns, 90ns
Charge Injection	-1pC	1pC	2pC	0.2pC	5pC	2pC
Channel Capacitance (CS(off), CD(off))	4pF, 4pF	4pF, 4pF	3pF, 3pF	3pF, 3pF	4pF, 4pF	3.5pF, 3pF
Current - Leakage (IS(off)) (Max)	500pA	500pA	100pA	100pA	500pA	1nA
Crosstalk	-95dB @ 100kHz	-100dB @ 1MHz	-90dB @ 100kHz	-90dB @ 100kHz	-100dB @ 1MHz	-90dB @ 100kHz
Operating Temperature	-40°C – 85°C	-40°C – 85°C	0°C – 70°C	-40°C – 85°C	0°C – 70°C	0°C – 70°C
Package / Case	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)
Product Status	Obsolete	Active	Active	Active	Active	Obsolete
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

ADG442BNZ (Analog Devices Inc.) is the closest functional equivalent. It offers lower on-state resistance (70Ω vs. 80Ω), faster switching times (110ns/60ns vs. 220ns/120ns), and improved crosstalk performance (-100dB @ 1MHz). Operating temperature range matches the DG442BDJ (-40°C to 85°C). Single supply voltage is limited to 12V, which may not accommodate applications requiring the full 13V–36V range of the original part. This part is active and ROHS3 compliant.

ALD4212PCL (Advanced Linear Devices Inc.) provides the widest operating temperature coverage (-40°C to 85°C) among ALD options and features the lowest charge injection (0.2pC). On-state resistance is higher at 135Ω, and supply voltage range is restricted to 3V–12V single supply. This part is active and ROHS3 compliant.

MAX362CPE+ (Analog Devices Inc./Maxim Integrated) offers on-state resistance (85Ω) closest to the original specification and supports a wide single supply range (10V–30V). Operating temperature is limited to 0°C–70°C. This part is active and ROHS3 compliant.

MAX4552CPE+ (Analog Devices Inc./Maxim Integrated) is classified as obsolete but remains available. It provides the lowest channel-to-channel matching (1Ω) and lowest leakage current (1nA). Supply voltage range is restricted to 2V–12V single supply, and operating temperature is 0°C–70°C. ROHS3 compliant.

ALD4202MPCL (Advanced Linear Devices Inc.) operates at the lowest supply voltages (3V–12V single supply) and features the lowest leakage current (100pA). Operating temperature is limited to 0°C–70°C. This part is active and ROHS3 compliant.

For applications requiring the full voltage range and temperature coverage of the DG442BDJ, ADG442BNZ is the primary recommendation. For low-voltage applications with extended temperature requirements, ALD4212PCL is suitable. For high-voltage applications (10V–30V), MAX362CPE+ is appropriate.

Frequently Asked Questions (FAQ)

Q: Can ADG442BNZ directly replace DG442BDJ in all applications?

A: ADG442BNZ is functionally compatible in 16-DIP through-hole applications requiring SPST-NO 4-circuit switching. However, the single supply voltage specification is limited to 12V, whereas DG442BDJ supports 13V–36V. Verify that your application operates within the 12V single supply or ±15V dual supply range of the ADG442BNZ before substitution.

Q: What is the significance of on-state resistance differences between substitutes?

A: On-state resistance directly affects signal attenuation and power dissipation in switching applications. DG442BDJ specifies 80Ω maximum. Substitutes range from 70Ω (ADG442BNZ, lower dissipation) to 135Ω (ALD4202MPCL, ALD4212PCL, higher dissipation). Select based on your circuit's impedance matching and power budget requirements.

Q: Are all substitutes compatible with the 16-DIP package footprint?

A: Yes. All substitute parts are specified in 16-DIP (0.300", 7.62mm) through-hole packages and are mechanically compatible with DG442BDJ PCB layouts. No board redesign is required for package accommodation.

Q: Which substitute supports the widest operating temperature range?

A: ADG442BNZ and ALD4212PCL both support -40°C to 85°C, matching the DG442BDJ specification. ALD4202MPCL, MAX362CPE+, and MAX4552CPE+ are limited to 0°C–70°C. Select based on your application's thermal environment.

Q: What does "charge injection" mean, and why does it vary among substitutes?

A: Charge injection is the amount of charge transferred to the signal path when the switch transitions. Lower values reduce signal distortion in precision analog applications. DG442BDJ specifies -1pC. ALD4212PCL offers the lowest charge injection (0.2pC), while MAX362CPE+ has the highest (5pC). For audio and precision measurement applications, lower charge injection is preferred.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements equivalent to the DG442BDJ.

Q: Which substitute has the best crosstalk performance?

A: ADG442BNZ and MAX362CPE+ both specify -100dB @ 1MHz crosstalk, superior to DG442BDJ's -95dB @ 100kHz. The remaining substitutes specify -90dB @ 100kHz. For applications sensitive to channel-to-channel interference, ADG442BNZ or MAX362CPE+ are preferred.

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