Equivalent & Substitute Parts: F16-070 Laminated Power Transformer

Part Overview

The F16-070 is a laminated core power transformer manufactured by Triad Magnetics, rated at 1.1VA with dual secondary windings. This through-hole mounted component operates at 115V primary voltage with configurable secondary outputs of 8V parallel or 16V series. The part is currently active in production and maintains ROHS3 compliance with 2500Vrms isolation rating. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to inventory constraints, lead time considerations, or design flexibility needs.

Key Parameters

Parameter	Value
Power Rating	1.1VA
Primary Voltage	115V
Secondary Voltage (Parallel)	8V
Secondary Voltage (Series)	16V
Output Current - Parallel	140mA
Output Current - Series	70mA
Core Type	Laminated
Primary Windings	Single
Secondary Windings	Dual
Center Tap	No
Mounting Type	Through Hole
Termination Style	PC Pin
Isolation Voltage	2500Vrms
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the F16-070 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

Primary voltage: 115V
Secondary voltage configuration: Parallel 8V and Series 16V
Maximum output current: Parallel 140mA, Series 70mA
Power rating: 1.1VA
Isolation voltage: 2500Vrms
Winding configuration: Single primary, dual secondary, no center tap

Mechanical Equivalence Requirements:

Core type: Laminated
Mounting type: Through hole
Termination style: PC pin
Physical dimensions compatible with PCB layout constraints

Compliance Requirements:

RoHS3 compliance mandatory
REACH unaffected status

The substitute part 164D16 (Hammond Manufacturing) meets all electrical and compliance criteria. Physical dimension variations in height (23.80mm vs. 33.32mm) and width (28.58mm vs. 28.56mm) must be evaluated against specific PCB layout requirements.

Parameter Comparison

Parameter	F16-070 (Triad Magnetics)	164D16 (Hammond Manufacturing)	Match Status
Power Rating	1.1VA	1.1VA	Equivalent
Primary Voltage	115V	115V	Equivalent
Secondary Voltage - Parallel	8V	8V	Equivalent
Secondary Voltage - Series	16V	16V	Equivalent
Output Current - Parallel	140mA	140mA	Equivalent
Output Current - Series	70mA	70mA	Equivalent
Core Type	Laminated	Laminated	Equivalent
Primary Windings	Single	Single	Equivalent
Secondary Windings	Dual	Dual	Equivalent
Center Tap	No	No	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Termination Style	PC Pin	PC Pin	Equivalent
Isolation Voltage	2500Vrms	2500Vrms	Equivalent
Length	34.93mm	34.93mm	Equivalent
Width	28.58mm	28.56mm	Equivalent
Height - Seated (Max)	23.80mm	33.32mm	Variation
Weight	0.17 lb (77.11 g)	0.17 lb (77.11 g)	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
REACH Status	REACH Unaffected	REACH Unaffected	Equivalent

Engineering Selection Recommendations

Primary Part Selection (F16-070): The F16-070 is the specified component with active production status. Selection is appropriate when design specifications require the exact physical envelope of 23.80mm maximum seated height and 28.58mm width. Current inventory of 988 pieces supports immediate procurement.

Substitute Part Selection (164D16): The 164D16 provides electrical and functional equivalence with identical power delivery, voltage configuration, and isolation characteristics. This substitute is applicable when:

Electrical performance requirements are met by equivalent 1.1VA, 115V primary, dual secondary configuration
PCB layout accommodates the increased height of 33.32mm
Through-hole mounting and PC pin termination are compatible with existing design
ROHS3 and REACH compliance requirements are satisfied

Both parts maintain identical electrical performance and regulatory compliance. The decision between F16-070 and 164D16 is determined by physical space availability on the PCB and component availability at the time of procurement.

Frequently Asked Questions (FAQ)

Q: Can the 164D16 be used as a direct replacement for the F16-070?

A: The 164D16 is electrically equivalent to the F16-070 across all specified parameters: power rating, primary voltage, secondary voltage configuration, output current ratings, isolation voltage, and winding configuration. Physical compatibility depends on PCB layout constraints. The 164D16 has a maximum seated height of 33.32mm compared to the F16-070 at 23.80mm. Verify that the additional 9.52mm height does not conflict with component placement or enclosure clearance requirements.

Q: Are there differences in packaging between these parts?

A: The F16-070 is supplied in box packaging, while the 164D16 is supplied in bulk packaging. This distinction affects handling and storage procedures but does not impact electrical performance or functional compatibility.

Q: Do both parts meet the same compliance standards?

A: Both the F16-070 and 164D16 are ROHS3 compliant and REACH unaffected. Both maintain 2500Vrms isolation voltage rating. Compliance requirements are satisfied by either part.

Q: What is the significance of the MSL rating difference?

A: The F16-070 lists MSL as Not Applicable, while the 164D16 lists MSL 1 (Unlimited). This indicates different moisture sensitivity classifications. For applications requiring specific moisture handling protocols, the F16-070's Not Applicable status may be preferable. For standard industrial applications, the 164D16's MSL 1 rating presents no functional limitation.

Q: How do I determine which part to select for my application?

A: Selection is based on three factors: (1) Electrical requirements—both parts are equivalent; (2) Physical space—verify the 33.32mm height of the 164D16 against your PCB layout; (3) Availability—current inventory shows 988 pieces of F16-070 and 734 pieces of 164D16.

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