Hammond Manufacturing 187F36 Low Voltage Chassis Mount Transformer 100.8VA 36V CT
Brand: Hammond Manufacturing
Manufacturer: Hammond Manufacturing
Manufacturer Part Number (MPN): 187F36
Jameco Part Number (SKU): 2577623
Series: 187
UPC: 623980761459
HTS Code: 8504.31.4065
ECCN: EAR99
Key Specifications
Specification
Value
Power Rating
100.8 VA
Primary Voltage
115 VAC
Primary Frequency
50/60 Hz
Secondary Voltage
36 V CT (18-0-18) VAC
Secondary Current
2.8 A
Mounting Style
Chassis
Agency Approvals
UL Listed #E207860 Type 3AH, CSA Certified
Insulation Class
Class B (130 °C)
The Hammond Manufacturing 187F36 is a chassis-mount low-voltage power transformer in the 187 Series, rated at 100.8 VA with a 115 VAC single primary and a 36 V center-tapped secondary delivering up to 2.8 A. Designed for 50/60 Hz operation, it features split-bobbin construction and combination solder or quick-connect terminals to support flexible assembly configurations. Agency approvals listed by Hammond include UL Listed #E207860 Type 3AH and CSA Certified, and the transformer is also listed as RoHS Compliant, REACH Compliant, and USMCA Compliant.
Key Features and Benefits
Single 115 VAC primary (187 Series) - Matches common North American mains voltage for straightforward integration into standard equipment designs.
36 V center-tapped secondary at 2.8 A (100.8 VA) - Provides a dual 18 V output from a single winding, supporting full-wave rectifier circuits and split-supply designs.
50/60 Hz dual-frequency operation - Supports use with both 50 Hz and 60 Hz line frequencies within the manufacturer's stated limits.
Split-bobbin construction - Eliminates the need for a separate electrostatic shield, helping simplify the transformer assembly.
Hi-pot tested to 2 kV RMS - Provides verified dielectric strength per the manufacturer's stated test procedure.
Class B (130 °C) insulation with temperature rise not exceeding Class A limits - Supports longer service life by operating well within the insulation system's thermal rating.
Combination solder or quick-connect terminals - Offers flexible wiring options to accommodate different assembly and prototyping workflows.
Chassis-mount form factor - Designed for direct mounting to a chassis or enclosure panel, supporting secure mechanical integration.
Agency approvals: UL Listed #E207860 Type 3AH and CSA Certified - Supports compliance documentation requirements for end-product safety evaluations.
RoHS Compliant, REACH Compliant, and USMCA Compliant - Helps meet regulatory and trade compliance requirements for applicable markets.
Applications
Linear power supply designs requiring a center-tapped secondary
Full-wave rectifier circuits using a center-tap configuration
Split-rail or dual-polarity DC power supplies
Audio amplifier power stages
Industrial control and instrumentation equipment
Test bench and laboratory power sources
DIY electronics and prototyping projects requiring chassis-mount transformers
Specifications
Specification
Value
Product Type
Low Voltage Transformer
Manufacturer Series
187
Part Number
187F36
Power Rating
100.8 VA
Primary Voltage
115 VAC
Primary Frequency
50/60 Hz
Secondary Voltage
36 V CT VAC
Secondary Current
2.8 A
Mounting Style
Chassis
Terminal Type
Combination solder or quick-connect tabs
Construction
Split-bobbin
Insulation Class
Class B (130 °C); temperature rise not exceeding Class A
Hi-Pot Test Voltage
2 kV RMS
Agency Approvals
UL Listed #E207860 Type 3AH; CSA Certified
RoHS Compliant
Yes
REACH Compliant
Yes
USMCA Compliant
Yes
ECCN
EAR99
HTS Code
8504.31.4065
UPC
623980761459
Customer Questions
What is the secondary output configuration of the 187F36?
The 187F36 provides a 36 V center-tapped (CT) secondary winding rated at 2.8 A. The center tap allows the winding to be used as a dual 18 V supply or as a full-wave rectifier source in a standard center-tap rectifier circuit.
What primary voltage and frequency does the 187F36 require?
The 187F36 is designed for a 115 VAC single primary and operates on both 50 Hz and 60 Hz line frequencies, within the manufacturer's stated limits.
What agency approvals does the 187F36 carry?
Agency approvals listed by Hammond Manufacturing include UL Listed #E207860 Type 3AH and CSA Certified. The transformer is also listed as RoHS Compliant and REACH Compliant.
What terminal options are available on the 187F36?
The 187 Series uses combination solder or quick-connect tabs, providing flexibility for different wiring and assembly methods.
How is the 187F36 mounted?
The 187F36 is designed for chassis mounting, allowing it to be secured directly to a panel or enclosure. Verify that your enclosure dimensions and mounting hole pattern are compatible with the transformer's footprint before installation.
Customer Concerns
Will this transformer fit my existing chassis or enclosure?
The 187F36 is a chassis-mount transformer. Confirm that your enclosure's available panel space and mounting hole pattern match the transformer's physical dimensions before installation. Refer to the Hammond 186/187 Series datasheet for dimensional drawings.
Is the 187F36 suitable for my load requirements?
The 187F36 is rated at 100.8 VA with a 2.8 A secondary current. Verify that your total load current does not exceed 2.8 A and that your application's VA demand stays within the 100.8 VA rating. Operating within the manufacturer's stated limits helps support reliable long-term performance.
Does this transformer meet safety and compliance requirements for my end product?
The 187F36 carries agency approvals listed by Hammond Manufacturing as UL Listed #E207860 Type 3AH and CSA Certified, and is listed as RoHS and REACH Compliant. Whether these approvals satisfy your specific end-product compliance requirements depends on your application and jurisdiction - consult your compliance engineer and review the Hammond compliance documentation for details.
