DG412LDJ Equivalent & Substitute Parts

Part Overview

The DG412LDJ is a 4-circuit SPST-NO IC switch manufactured by Vishay Siliconix, designed for signal routing and multiplexing applications in the 16-DIP package. This part operates with single supply voltage (2.7V ~ 12V) or dual supply (±3V ~ 6V), featuring 17Ohm on-state resistance and 280MHz bandwidth. The DG412LDJ is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support.

Key Parameters

Parameter	DG412LDJ
Manufacturer	Vishay Siliconix
Switch Circuit Type	SPST - NO
Number of Circuits	4
On-State Resistance (Max)	17Ohm
Voltage - Supply, Single (V+)	2.7V ~ 12V
Voltage - Supply, Dual (V±)	±3V ~ 6V
Switch Time (Ton, Toff)	19ns, 12ns
-3dB Bandwidth	280MHz
Package / Case	16-DIP (0.300", 7.62mm)
Operating Temperature	-40°C ~ 85°C
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution for the DG412LDJ is determined by the following critical parameters:

Package compatibility: All substitutes must use 16-DIP (0.300", 7.62mm) through-hole mounting
Circuit configuration: SPST-NO topology with 4 circuits (1:1 multiplexer/demultiplexer)
Supply voltage overlap: Substitute must support the operating voltage range of the application
On-state resistance: Lower resistance values provide improved signal integrity but may not be required for all applications
Switching speed: Substitutes with comparable or faster switching characteristics maintain system performance
Temperature range: Extended temperature operation (-40°C ~ 85°C) preferred for industrial applications

The substitute parts listed below maintain functional equivalence through identical package geometry, circuit topology, and pin configuration, while offering improved electrical characteristics or compliance status.

Parameter Comparison

Parameter	DG412LDJ	DG412CJ+	DG412DJ+	DG412DJZ	MAX4602CPE+	MAX4678EPE+
Manufacturer	Vishay Siliconix	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	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
Number of Circuits	4	4	4	4	4	4
On-State Resistance (Max)	17Ohm	45Ohm	45Ohm	35Ohm	2.5Ohm	1.6Ohm
Voltage - Supply, Single (V+)	2.7V ~ 12V	10V ~ 30V	10V ~ 30V	5V ~ 44V	4.5V ~ 36V	2.7V ~ 11V
Voltage - Supply, Dual (V±)	±3V ~ 6V	±4.5V ~ 20V	±4.5V ~ 20V	±5V ~ 20V	±4.5V ~ 20V	±2.7V ~ 5.5V
Switch Time (Ton, Toff)	19ns, 12ns	175ns, 145ns	175ns, 145ns	175ns, 145ns	250ns, 350ns	350ns, 150ns
-3dB Bandwidth	280MHz	—	—	—	—	66MHz
Charge Injection	5pC	5pC	5pC	5pC	120pC	85pC
Channel Capacitance (CS(off), CD(off))	5pF, 6pF	9pF, 9pF	9pF, 9pF	9pF, 9pF	55pF, 55pF	85pF, 85pF
Current - Leakage (IS(off)) (Max)	250pA	250pA	250pA	100pA	500pA	1nA
Crosstalk	-95dB @ 1MHz	-85dB @ 1MHz	-85dB @ 1MHz	-85dB @ 1MHz	-59dB @ 1MHz	-84dB @ 1MHz
Operating Temperature	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	-40°C ~ 85°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	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

DG412DJ+ (Analog Devices Inc./Maxim Integrated) is the primary substitute for the DG412LDJ. This part maintains identical circuit topology and package geometry while offering extended operating temperature range (-40°C ~ 85°C), ROHS3 compliance, and active product status. The DG412DJ+ is suitable for applications requiring industrial temperature operation and modern regulatory compliance.

DG412DJZ (Renesas Electronics Corporation) provides an alternative with improved on-state resistance (35Ohm vs. 45Ohm) and lower leakage current (100pA vs. 250pA). This part supports extended supply voltage range (5V ~ 44V single supply) and maintains the full industrial temperature range. ROHS3 compliance and active status make this suitable for new designs.

MAX4678EPE+ (Analog Devices Inc./Maxim Integrated) is recommended for applications requiring the lowest on-state resistance (1.6Ohm) and minimal signal distortion. This part operates within the original DG412LDJ supply voltage range (2.7V ~ 11V single supply, ±2.7V ~ 5.5V dual supply) and maintains extended temperature operation. The trade-off is reduced bandwidth (66MHz) and higher channel capacitance.

DG412CJ+ (Analog Devices Inc./Maxim Integrated) is suitable only for applications with operating temperature limited to 0°C ~ 70°C. This part offers the same electrical characteristics as DG412DJ+ but with restricted temperature range.

MAX4602CPE+ (Analog Devices Inc./Maxim Integrated) is suitable only for applications with operating temperature limited to 0°C ~ 70°C. This part provides the lowest on-state resistance (2.5Ohm) among temperature-restricted options but exhibits higher charge injection (120pC) and reduced crosstalk performance (-59dB @ 1MHz).

Frequently Asked Questions (FAQ)

Q: Can DG412DJ+ directly replace DG412LDJ in existing designs?

A: Yes. DG412DJ+ maintains identical pin configuration, package geometry (16-DIP), and circuit topology (4-circuit SPST-NO). The higher on-state resistance (45Ohm vs. 17Ohm) may require circuit verification in applications with strict signal integrity requirements. Extended temperature range (-40°C ~ 85°C) and ROHS3 compliance provide improved reliability and regulatory alignment.

Q: What is the key difference between DG412DJ+ and DG412DJZ?

A: Both parts maintain identical package and circuit topology. DG412DJZ offers lower on-state resistance (35Ohm vs. 45Ohm) and lower leakage current (100pA vs. 250pA), with extended single supply voltage range (5V ~ 44V vs. 10V ~ 30V). Selection depends on application supply voltage requirements and signal integrity specifications.

Q: Is MAX4678EPE+ compatible with the original DG412LDJ supply voltage range?

A: Yes. MAX4678EPE+ operates within the original supply voltage range (2.7V ~ 11V single supply, ±2.7V ~ 5.5V dual supply). However, the reduced bandwidth (66MHz vs. 280MHz) and higher channel capacitance (85pF vs. 5pF/6pF) may affect high-frequency signal routing performance. Application-specific testing is required for high-speed switching circuits.

Q: Why do some substitutes have higher on-state resistance than the DG412LDJ?

A: On-state resistance varies with semiconductor process technology and die design. DG412CJ+ and DG412DJ+ use different process nodes that result in higher resistance but offer improved compliance status, extended temperature range, and active product availability. Applications with low-impedance signal paths may require MAX4678EPE+ or MAX4602CPE+ for equivalent performance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (DG412CJ+, DG412DJ+, DG412DJZ, MAX4602CPE+, MAX4678EPE+) are ROHS3 compliant. The original DG412LDJ is RoHS non-compliant, making substitution necessary for applications subject to RoHS regulations.

Q: What is the temperature range limitation for DG412CJ+ and MAX4602CPE+?

A: Both parts operate within 0°C ~ 70°C, which excludes industrial and extended temperature applications. These parts are suitable only for commercial-grade designs with controlled environmental conditions. For industrial applications requiring -40°C ~ 85°C operation, select DG412DJ+, DG412DJZ, or MAX4678EPE+.

Q: Can MAX4602CPE+ be used in high-frequency applications?

A: MAX4602CPE+ exhibits reduced crosstalk performance (-59dB @ 1MHz) compared to the DG412LDJ (-95dB @ 1MHz) and other substitutes. Higher charge injection (120pC) and channel capacitance (55pF) may introduce signal distortion in high-frequency multiplexing circuits. For applications requiring crosstalk performance below -85dB, select DG412DJ+, DG412DJZ, or MAX4678EPE+.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message