DG442DJZ Equivalent & Substitute Parts

Part Overview

The DG442DJZ is a 4-circuit SPST-NO IC switch manufactured by Renesas Electronics Corporation, housed in a 16-DIP through-hole package with 85Ohm on-state resistance. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The DG442DJZ operates across a wide supply voltage range (5V to 34V single supply, ±5V to ±22V dual supply) and is suitable for analog signal switching applications requiring low on-state resistance and fast switching times.

Key Parameters

Parameter	Value
Manufacturer Part Number	DG442DJZ
Manufacturer	Renesas Electronics Corporation
Switch Circuit Type	SPST - NO (Single Pole Single Throw - Normally Open)
Number of Circuits	4
Multiplexer/Demultiplexer Configuration	1:1
On-State Resistance (Max)	85Ohm
Voltage - Supply, Single (V+)	5V ~ 34V
Voltage - Supply, Dual (V±)	±5V ~ 22V
Switch Time (Ton, Toff) (Max)	250ns, 210ns
Charge Injection	-1pC
Channel Capacitance (CS(off), CD(off))	4pF, 4pF
Current - Leakage (IS(off)) (Max)	500pA
Crosstalk	-100dB @ 1MHz
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	16-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the DG442DJZ is determined by strict alignment of the following critical parameters:

Primary Substitution Criteria:

Switch circuit type: SPST - NO
Number of circuits: 4
Multiplexer/Demultiplexer configuration: 1:1
On-state resistance: 85Ohm (±tolerance acceptable)
Package type: 16-DIP through-hole mounting
Operating temperature range: -40°C to 85°C minimum
Supply voltage compatibility: Overlapping ranges for both single and dual supply configurations

Secondary Compatibility Factors:

Switch time parameters (Ton, Toff)
Charge injection characteristics
Channel capacitance values
Leakage current specifications
Crosstalk performance
RoHS3 compliance and MSL rating

Substitute parts are grouped into two categories: Direct Equivalents (matching all primary criteria with identical or superior electrical performance) and Compatible Alternatives (meeting primary criteria with acceptable parameter variations for specific application requirements).

Parameter Comparison

Part Number	Manufacturer	On-State Resistance (Max)	V+ Supply Range	V± Supply Range	Ton/Toff (Max)	Charge Injection	Leakage Current (Max)	Package	Product Status
DG442DJZ	Renesas Electronics	85Ohm	5V ~ 34V	±5V ~ 22V	250ns, 210ns	-1pC	500pA	16-DIP	Obsolete
DG442DJ-E3	Vishay Siliconix	85Ohm	12V	±15V	250ns, 210ns	-1pC	500pA	16-DIP	Active
DG202BDJ-E3	Vishay Siliconix	85Ohm	4.5V ~ 25V	±4.5V ~ 22V	300ns, 200ns	1pC	500pA	16-DIP	Active
DG308BDJ-E3	Vishay Siliconix	85Ohm	4V ~ 44V	±4V ~ 22V	200ns, 150ns	1pC	500pA	16-DIP	Active
ADG442BNZ	Analog Devices Inc.	70Ohm	12V	±15V	110ns, 60ns	1pC	500pA	16-DIP	Active
ADG202AKNZ	Analog Devices Inc.	90Ohm	10V ~ 15V	±10V ~ 15V	300ns, 250ns	20pC	2nA	16-DIP	Active
ALD4202MPCL	Advanced Linear Devices Inc.	135Ohm	3V ~ 12V	±1.5V ~ 6V	240ns, 130ns	2pC	100pA	16-DIP	Active
DG308ACJ-E3	Vishay Siliconix	100Ohm	Not Specified	±15V	200ns, 150ns	-10pC	1nA	16-DIP	Active
DG442CJ+	Analog Devices Inc./Maxim Integrated	85Ohm	10V ~ 30V	±4.5V ~ 20V	250ns, 170ns	5pC	500pA	16-DIP	Obsolete
DG442DJ+	Analog Devices Inc./Maxim Integrated	85Ohm	10V ~ 30V	±4.5V ~ 20V	250ns, 170ns	5pC	500pA	16-DIP	Obsolete
DG442DYZ	Renesas Electronics	85Ohm	5V ~ 34V	±5V ~ 22V	250ns, 210ns	-1pC	500pA	16-SOIC	Active

Engineering Selection Recommendations

Recommended Primary Substitute: DG442DJ-E3

The DG442DJ-E3 (Vishay Siliconix) is the preferred direct equivalent. It maintains identical on-state resistance (85Ohm), matching switch timing characteristics (250ns, 210ns), and equivalent charge injection (-1pC). The part is currently in active production status, ensuring long-term availability. Both parts are ROHS3 compliant with MSL-1 ratings. The DG442DJ-E3 operates at fixed supply voltages (12V single, ±15V dual) compared to the DG442DJZ's wider ranges, requiring verification that your application's supply voltages align with these specifications.

Secondary Substitutes for Wider Supply Voltage Range:

The DG308BDJ-E3 (Vishay Siliconix) offers the broadest single-supply voltage range (4V to 44V) and dual-supply range (±4V to ±22V) while maintaining 85Ohm on-state resistance. It provides faster switching times (200ns, 150ns) and is actively produced. This part is suitable when the DG442DJZ's wide voltage compatibility is a design requirement.

The DG202BDJ-E3 (Vishay Siliconix) provides moderate supply voltage ranges (4.5V to 25V single, ±4.5V to ±22V dual) with 85Ohm on-state resistance and active production status.

Alternative for Lower On-State Resistance:

The ADG442BNZ (Analog Devices Inc.) offers reduced on-state resistance (70Ohm) with significantly faster switching times (110ns, 60ns). This part operates at fixed supply voltages (12V single, ±15V dual) and is suitable for applications prioritizing speed and lower resistance characteristics.

Alternative for Lower Supply Voltage Operation:

The ALD4202MPCL (Advanced Linear Devices Inc.) is designed for lower supply voltage ranges (3V to 12V single, ±1.5V to ±6V dual) with higher on-state resistance (135Ohm). This part is appropriate only if your application operates at reduced supply voltages and can tolerate increased on-state resistance.

Packaging Consideration:

The DG442DYZ (Renesas Electronics) is electrically identical to the DG442DJZ but uses 16-SOIC surface-mount packaging instead of 16-DIP through-hole. This part is suitable only if your PCB design supports surface-mount components.

Obsolete Parts to Avoid:

The DG442CJ+ and DG442DJ+ (Analog Devices Inc./Maxim Integrated) are obsolete and should not be selected for new designs despite electrical compatibility.

Frequently Asked Questions (FAQ)

Q: Can I use DG442DJ-E3 as a direct replacement for DG442DJZ?

A: Yes, the DG442DJ-E3 is a direct electrical equivalent with identical on-state resistance, switch timing, and charge injection characteristics. Both are ROHS3 compliant with MSL-1 ratings. Verify that your application's supply voltages (12V single, ±15V dual) match the DG442DJ-E3's fixed voltage requirements, as the original DG442DJZ supports wider ranges.

Q: What is the key difference between DG442DJ-E3 and DG308BDJ-E3?

A: Both maintain 85Ohm on-state resistance and are actively produced. The DG308BDJ-E3 offers significantly wider supply voltage ranges (4V to 44V single, ±4V to ±22V dual) and faster switching times (200ns, 150ns vs. 250ns, 210ns). Select DG308BDJ-E3 if your design requires broader voltage compatibility or faster switching performance.

Q: Can I use ADG442BNZ instead of DG442DJZ?

A: The ADG442BNZ is functionally compatible as a 4-circuit SPST-NO switch in 16-DIP packaging. It offers lower on-state resistance (70Ohm) and significantly faster switching times (110ns, 60ns). However, it operates only at fixed supply voltages (12V single, ±15V dual) and has higher leakage current (2nA vs. 500pA). Use this part only if your application can accommodate these electrical differences and benefits from the improved speed characteristics.

Q: Why is ALD4202MPCL listed as a substitute if it has 135Ohm resistance?

A: The ALD4202MPCL is included as a compatible alternative for applications operating at lower supply voltages (3V to 12V single, ±1.5V to ±6V dual). The higher on-state resistance is acceptable in designs where supply voltage constraints are the primary concern. This part is not suitable for applications requiring the DG442DJZ's 85Ohm resistance specification.

Q: Can I use DG442DYZ (SOIC package) in place of DG442DJZ (DIP package)?

A: The DG442DYZ is electrically identical to the DG442DJZ and is currently in active production. However, it uses 16-SOIC surface-mount packaging instead of 16-DIP through-hole packaging. This substitution is only possible if your PCB design supports surface-mount components and you have appropriate soldering equipment. The parts are not mechanically interchangeable.

Q: What should I consider when selecting between multiple substitute options?

A: Prioritize parts in active production status over obsolete parts. Verify that the substitute's supply voltage ranges encompass your application's requirements. Compare on-state resistance, switching times, and leakage current specifications against your design's performance criteria. Confirm package type compatibility (through-hole vs. surface-mount). All recommended substitutes maintain ROHS3 compliance and appropriate MSL ratings for standard handling.

Q: Are there any supply voltage compatibility issues I should be aware of?

A: Yes. The DG442DJZ supports 5V to 34V single supply and ±5V to ±22V dual supply. The DG442DJ-E3 operates at fixed 12V single and ±15V dual supplies. The DG308BDJ-E3 supports 4V to 44V single and ±4V to ±22V dual supplies. The ADG442BNZ and ALD4202MPCL operate at fixed or narrower voltage ranges. Verify your application's supply voltages align with the substitute part's specifications before selection.

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