Hammond 164F48 6VA 48V Center-Tapped PCB Transformer, 115V Primary
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Create Free Business AccountKey Features
- 6VA rating: 48V C.T. @ .125A with secondaries in series, 24V @ .25A in parallel
- Single 115V primary for 50/60 Hz operation
- Two-hole mounting with #4 screws (not provided) plus industry-standard PCB pin spacing
- Low-profile split bobbin, 1.63 x 1.31 x 1.31 in (L x W x H)
- Dual non-concentric secondaries; low coupling, no electrostatic shield required
- Class B 130 degrees C insulation, 2,500V RMS hipot
- c UL us recognized; RoHS and REACH compliant
The 164F48 is a 6VA low-voltage power transformer designed to mount directly on a printed circuit board. It has a single 115V primary rated for 50/60 Hz operation and a low-profile, split bobbin construction, making it a fit for OEM engineers and board designers who need a 48V centre-tapped secondary in a compact footprint. It is rated 48V C.T. at 0.125A in series and 24V at 0.25A in parallel.
Construction uses dual secondary windings, non-concentrically wound, which gives low primary-to-secondary coupling without the need for an electrostatic shield. The insulation system is Class B, rated 130 degrees C, with a 2,500V RMS hipot. All windings are intended to be used together in either the series or the parallel connection.
On the series specification sheet the F-size body is 1.63 in long, 1.31 in wide and 1.31 in high, weighing 0.44 lb. The 6VA size uses two-hole mounting with #4 screws (mounting screws are not provided) in addition to its industry-standard P.C. board pins.
The 164F48 drawing labels each secondary winding (pins 5-6 and pins 7-8) at 24V, 125mA, with the 115V primary on pins 1 and 4; pin numbers are embossed on the bobbin flange.
The transformer is c UL us recognized and listed as RoHS and REACH compliant. Where a design must run from 115V or 230V, the dual-primary equivalent in the same series is 162F48.
Ideal For
- Low-voltage AC supply on printed circuit boards
- Board-level designs needing 48V centre-tapped or 24V secondary
- OEM equipment powered from 115V, 50/60 Hz mains
- Low-profile PCB layouts with limited height
Mounting
| Mounting Type | P.C. board mount, industry standard pin spacing |
| Mounting Holes | Two-hole mounting (6 VA size) |
| Mounting Screw | #4 (mounting screws not provided) |
Overview
| Series | 162-164 Series (164 = single primary 115V) |
| Part Number | 164F48 |
| Product Type | Transformer, low voltage PCB mount, low profile |
| Short Description | POWER TX 6VA 115V 50/60HZ |
| Dual Primary (115/230V) Equivalent | 162F48 |
Dimensions
| Size Letter | F |
| Width (W) - Spec Sheet | 1.31" |
| Height (H) - Spec Sheet | 1.31" |
| Length (L) - Spec Sheet | 1.63" |
| Dimension A - Spec Sheet | 0.25" |
| Dimension B - Spec Sheet | 0.35" |
| Dimension C - Spec Sheet | 1.28" |
| Dimension M - Spec Sheet | 1.06" |
Electrical
| Hipot | 2,500V RMS |
| Frequency | 50/60 Hz |
| Primary Voltage | 115V (single primary) |
| Insulation Class | Class B, 130 degrees C |
| Power Rating (VA) | 6 |
| Electrostatic Shield | Not required (low primary to secondary coupling) |
| Secondary (RMS) Series | 48V C.T. @ .125A |
| Secondary Configuration | Dual winding secondaries, non-concentrically wound; all windings must be used |
| Secondary (RMS) Parallel | 24V @ .25A |
Identifiers
| UPC | 623980260495 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Shipping Weight | 0.4 lbs (0.18 kg) |
Construction & Finish
| Design | Low profile, split bobbin |
| Unit Weight - Spec Sheet | 0.44 lbs |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
| Agency Recognition | c UL us recognized |
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Frequently Asked Questions
What output voltage and current does the 164F48 provide?▾
With the two secondaries connected in series it provides 48V C.T. @ .125A; connected in parallel it provides 24V @ .25A. The transformer is rated 6VA.
Can I use only one of the secondary windings?▾
The series is designed so that all windings must be used, so connect both secondary windings, either in series for the centre-tapped output or in parallel for the lower-voltage, higher-current output.
What input voltage does the 164F48 accept?▾
It has a single 115V primary and operates on 50/60 Hz. For universal 115/230V dual-primary operation, the matching part in the series is 162F48.
How is it mounted?▾
It mounts on a P.C. board with industry-standard pin spacing and uses two-hole mounting with #4 screws. Mounting screws are not provided.
What are the dimensions of the 164F48?▾
The series specification sheet lists the F size at 1.63 in L x 1.31 in W x 1.31 in H, with a weight of 0.44 lb. Shipping weight is 0.4 lbs (0.18 kg).
What insulation and safety ratings does it carry?▾
Class B insulation rated 130 degrees C, a 2,500V RMS hipot, and c UL us recognition. It is also listed as RoHS and REACH compliant.
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