DG202BAK-E3 Equivalent & Substitute Parts

Part Overview

The DG202BAK-E3 is a 4-circuit SPST-NO IC switch manufactured by Vishay Siliconix, designed for general-purpose switching applications requiring low on-state resistance and minimal crosstalk. This part operates across a wide supply voltage range (4.5V to 25V single supply, or ±4.5V to ±22V dual supply) and features 85Ohm maximum on-state resistance with fast switching times.

The DG202BAK-E3 is classified as obsolete. Locating equivalent or substitute parts is necessary to support ongoing system maintenance, design updates, or production continuity where this component is specified.

Key Parameters

Parameter	Value
Switch Circuit Type	SPST - NO
Number of Circuits	4
Multiplexer/Demultiplexer Configuration	1:1
On-State Resistance (Max)	85Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm
Voltage - Supply, Single (V+)	4.5V ~ 25V
Voltage - Supply, Dual (V±)	±4.5V ~ ±22V
Switch Time (Ton, Toff) (Max)	300ns, 200ns
Charge Injection	1pC
Channel Capacitance (CS(off), CD(off))	5pF, 5pF
Current - Leakage (IS(off)) (Max)	500pA
Crosstalk	-95dB @ 100kHz
Operating Temperature	-55°C ~ 125°C (TA)
Package / Case	16-CDIP (0.300", 7.62mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the DG202BAK-E3 is determined by the following critical parameters:

Switch Circuit Type: Must be SPST - NO
Number of Circuits: Must be 4
Multiplexer Configuration: Must be 1:1
On-State Resistance (Max): 85Ohm is the baseline; higher values indicate increased insertion loss
Operating Temperature Range: Must support -55°C ~ 125°C minimum
Package Compatibility: 16-pin DIP package (0.300", 7.62mm pitch)
Supply Voltage Compatibility: Must support the required voltage rails for the application

Two substitute parts meet these criteria with varying trade-offs in electrical performance and product status.

Parameter Comparison

Parameter	DG202BAK-E3 (Main)	DG202AK/883B	MAX362CPE+
Manufacturer	Vishay Siliconix	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Product Status	Obsolete	Active	Active
Switch Circuit Type	SPST - NO	SPST - NO	SPST - NO
Number of Circuits	4	4	4
Multiplexer Configuration	1:1	1:1	1:1
On-State Resistance (Max)	85Ohm	175Ohm	85Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm	Not specified	2Ohm (Max)
Voltage - Supply, Dual (V±)	±4.5V ~ ±22V	±4.5V ~ ±18V	±4.5V ~ ±20V
Switch Time Ton (Max)	300ns	600ns	250ns
Switch Time Toff (Max)	200ns	450ns	120ns
Charge Injection	1pC	20pC	5pC
Channel Capacitance (CS(off), CD(off))	5pF, 5pF	5pF, 5pF	4pF, 4pF
Current - Leakage (IS(off)) (Max)	500pA	1nA	500pA
Crosstalk	-95dB @ 100kHz	-90dB @ 100kHz	-100dB @ 1MHz
Operating Temperature	-55°C ~ 125°C (TA)	-55°C ~ 125°C (TA)	0°C ~ 70°C (TA)
Package / Case	16-CDIP (0.300", 7.62mm)	16-CDIP (0.300", 7.62mm)	16-DIP (0.300", 7.62mm)
RoHS Status	ROHS3 Compliant	RoHS non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

MAX362CPE+ (Preferred Substitute)

The MAX362CPE+ is the primary substitute for the DG202BAK-E3. Both parts share identical on-state resistance (85Ohm), matching channel-to-channel resistance (2Ohm max), and equivalent leakage current (500pA). The MAX362CPE+ is actively manufactured, ROHS3 compliant, and offers superior switching speed (250ns/120ns vs. 300ns/200ns) and lower charge injection (5pC vs. 1pC). The operating temperature range is narrower (0°C ~ 70°C vs. -55°C ~ 125°C), which must be evaluated against application requirements. Package compatibility is maintained (16-DIP, 0.300" pitch).

DG202AK/883B (Secondary Substitute)

The DG202AK/883B is an active alternative from Analog Devices Inc./Maxim Integrated with identical circuit topology and pin count. However, the on-state resistance is doubled (175Ohm vs. 85Ohm), resulting in higher insertion loss. Switching times are significantly slower (600ns/450ns vs. 300ns/200ns), and charge injection is substantially higher (20pC vs. 1pC). This part is not ROHS3 compliant. The DG202AK/883B is suitable only for applications where insertion loss and switching speed are non-critical. The dual supply voltage range is slightly reduced (±4.5V ~ ±18V vs. ±4.5V ~ ±22V).

Frequently Asked Questions (FAQ)

Q: Can MAX362CPE+ directly replace DG202BAK-E3 in all applications?

A: MAX362CPE+ is electrically compatible for most applications due to matching on-state resistance and leakage current. However, the operating temperature range is restricted to 0°C ~ 70°C. Applications requiring operation below 0°C or above 70°C must use the original DG202BAK-E3 or evaluate alternative solutions. Switching speed improvements in MAX362CPE+ may benefit high-frequency applications.

Q: What are the key differences between DG202AK/883B and MAX362CPE+?

A: DG202AK/883B has double the on-state resistance (175Ohm vs. 85Ohm), slower switching times, and higher charge injection. MAX362CPE+ maintains the original electrical performance characteristics while offering faster switching and lower charge injection. MAX362CPE+ is ROHS3 compliant; DG202AK/883B is not.

Q: Are the 16-CDIP and 16-DIP packages interchangeable?

A: Both packages use 0.300" (7.62mm) pitch and 16-pin DIP form factor, making them mechanically and electrically interchangeable on standard through-hole PCBs. Verify footprint compatibility with your PCB design before substitution.

Q: Which substitute should I use if my application requires -55°C operation?

A: MAX362CPE+ does not support temperatures below 0°C. For applications requiring -55°C ~ 125°C operation, the original DG202BAK-E3 must be sourced, or alternative IC switch families with extended temperature ranges must be evaluated.

Q: Is RoHS compliance a factor in selecting a substitute?

A: If ROHS3 compliance is required for your application or supply chain, MAX362CPE+ is the only compliant option among the substitutes. DG202AK/883B is not ROHS3 compliant and may not be acceptable for regulated industries or regions with RoHS requirements.

Q: Can DG202AK/883B be used in high-speed switching applications?

A: DG202AK/883B has significantly slower switching times (600ns/450ns) compared to DG202BAK-E3 (300ns/200ns) and MAX362CPE+ (250ns/120ns). Applications requiring fast switching response should use MAX362CPE+ or the original part.

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