G2-DB01-TT Equivalent & Substitute Parts

Part Overview

The G2-DB01-TT is a solid-state relay (SSR) manufactured by Sensata-Crydom, configured as a SPST-NC (1 Form B) dual-channel device in an 8-DIP package. This component is designed for AC and DC load switching applications with a maximum load voltage of 350V and 170mA current capacity. The product is currently obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and redesign applications.

Key Parameters

Parameter	G2-DB01-TT
Manufacturer	Sensata-Crydom
Series	G2
Circuit Configuration	SPST-NC (1 Form B) x 2
Output Type	AC, DC
Voltage - Input	1.2VDC
Voltage - Load	0V ~ 350V
Load Current	170mA
On-State Resistance (Max)	20 Ohms
Package / Case	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole
Termination Style	PC Pin
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the G2-DB01-TT is determined by the following critical parameters:

Circuit Configuration: SPST-NC (1 Form B) x 2 dual-channel architecture
Package Type: 8-DIP (0.300", 7.62mm) through-hole form factor
Output Capability: AC and DC load switching
Voltage Rating: Load voltage range of at least 0V ~ 350V
Current Capacity: Minimum 170mA load current handling
On-State Resistance: Maximum 20 Ohms for acceptable voltage drop
Input Voltage: 1.2VDC or compatible control voltage

The AQW454 (Panasonic Electric Works PhotoMOS™ AQW series) meets these substitution criteria with compatible electrical and mechanical specifications, while offering active product status and improved compliance certifications.

Parameter Comparison

Parameter	G2-DB01-TT	AQW454	Compatibility Notes
Circuit Configuration	SPST-NC (1 Form B) x 2	SPST-NC (1 Form B) x 2	Identical
Output Type	AC, DC	AC, DC	Identical
Voltage - Input	1.2VDC	1.14VDC	Compatible; AQW454 requires slightly lower input voltage
Voltage - Load	0V ~ 350V	0V ~ 400V	AQW454 exceeds requirement; higher voltage margin available
Load Current	170mA	120mA	AQW454 rated lower; verify application current requirements do not exceed 120mA
On-State Resistance (Max)	20 Ohms	16 Ohms	AQW454 superior; lower voltage drop
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	Identical; direct PCB replacement
Mounting Type	Through Hole	Through Hole	Identical
Termination Style	PC Pin	PC Pin	Identical
Product Status	Obsolete	Active	AQW454 actively manufactured and supported
RoHS Status	Not specified	RoHS Compliant	AQW454 meets modern environmental compliance

Engineering Selection Recommendations

The AQW454 is the manufacturer-recommended substitute for the G2-DB01-TT. Selection of this alternative is supported by the following factors:

Electrical Compatibility: The AQW454 maintains identical circuit configuration (SPST-NC x 2) and output type (AC/DC). Input voltage requirement (1.14VDC) is marginally lower than the original (1.2VDC), ensuring compatibility with existing control circuits. Load voltage rating (400V) exceeds the original specification (350V), providing additional safety margin.

Current Rating Consideration: The AQW454 is rated for 120mA maximum load current, compared to the G2-DB01-TT's 170mA rating. Applications requiring load currents between 120mA and 170mA must be evaluated against actual circuit requirements before substitution.

Mechanical Compatibility: Identical 8-DIP package dimensions and through-hole PC pin termination enable direct PCB replacement without layout modification.

Product Status and Compliance: The AQW454 is an active product with RoHS compliance certification, ensuring long-term availability and adherence to current environmental standards. The obsolete status of the G2-DB01-TT necessitates transition to an actively supported alternative.

Frequently Asked Questions (FAQ)

Q: Can the AQW454 be used as a direct replacement for the G2-DB01-TT in all applications?

A: Direct replacement is possible for applications where load current does not exceed 120mA. The AQW454's lower current rating (120mA vs. 170mA) must be verified against actual circuit requirements. All other electrical and mechanical parameters are compatible or superior.

Q: What is the significance of the lower input voltage requirement (1.14VDC vs. 1.2VDC) for the AQW454?

A: The AQW454 requires slightly less input voltage to activate. Existing control circuits designed for 1.2VDC will operate the AQW454 reliably, as the control voltage will exceed the device's activation threshold.

Q: Are there any PCB layout changes required when substituting the AQW454 for the G2-DB01-TT?

A: No layout changes are required. Both devices use identical 8-DIP (0.300", 7.62mm) through-hole packages with PC pin termination, enabling direct socket replacement.

Q: Why does the AQW454 have a higher load voltage rating (400V vs. 350V)?

A: The AQW454 is designed with a higher voltage margin, providing additional safety headroom in applications operating near the original 350V specification. This does not affect compatibility; the device operates safely at the original voltage range.

Q: What compliance advantages does the AQW454 offer over the G2-DB01-TT?

A: The AQW454 carries RoHS compliance certification, meeting current environmental and regulatory standards. The G2-DB01-TT's obsolete status means it no longer receives manufacturer support or certification updates.

Q: How should I handle applications where load current exceeds 120mA but is below 170mA?

A: Evaluate the specific load current requirement. If the application requires sustained current above 120mA, the AQW454 may not be suitable. Consult the Panasonic Electric Works technical documentation for derating curves and thermal considerations, or identify alternative substitutes with higher current ratings.

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