Hammond 161C12 0.5VA 12.6V Center-Tapped 115V PCB Mount Transformer
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Create Free Business AccountKey Features
- 0.5 VA rating with 12.6V C.T. @ 40ma secondary (series connection)
- Parallel secondary connection delivers 6.3V @ 80ma
- Single 115V primary, 60 Hz only
- Vertical PC board mount, split bobbin, concentric wound
- Low primary-to-secondary coupling - no electrostatic shield required
- Class B insulation (130 degrees C), hipot 2,000V RMS
- CSA certified (File # LR3902) and UL recognized (File #E207860)
- RoHS and REACH compliant
The 161C12 is a low voltage, vertical PC board mount power transformer with a economical single 115V primary for 60 Hz only. Rated 0.5 VA, it is intended for low-current auxiliary supplies, bias rails and small control circuits on a printed circuit board.
The secondary is made of two windings. Connected in series they deliver 12.6V C.T. @ 40ma; connected in parallel they deliver 6.3V @ 80ma. With a 12.6V center-tapped secondary, this part sits at the low-voltage end of the 5 to 120VAC RMS range the series covers.
At 0.5 VA this is the smallest rating in the 160-161 family, and it is offered only with the single 115V primary; there is no dual-primary 160 equivalent. It is a concentric wound design with an overall footprint of 1.00 x 0.94 x 0.84 in (dimensions A, B and C on the 161 series mechanical table), pin size 0.025 x 0.03 in and a shipping weight of 0.1 lbs (0.05 kg).
Construction uses a split bobbin with low primary-to-secondary coupling, so no electrostatic shield is required. Insulation is Class B (130 degrees C) and hipot tested to 2,000V RMS. The series is CSA certified (File # LR3902) and UL recognized (File #E207860), and this part is listed as RoHS and REACH compliant.
Ideal For
- 0.5 VA PC board mounted power supplies
- Center-tapped or parallel low voltage secondary supply
- 115V, 60 Hz equipment
- Control and electronic circuit boards needing an isolated AC supply
Overview
| Series | 160-161 Series (Low Voltage PC Board Mount, 0.5 VA to 24 VA) |
| Mounting | P.C. board mount, vertical |
| Description | Transformer, low voltage PCB mount, 115V primary, 0.5VA, 12.6V C.T. @ 40ma sec |
| Part Number | 161C12 |
| Product Type | Low voltage PC board mount power transformer |
| Short Description | POWER TX 0.5VA 115V |
| Dual Primary 115/230V Equivalent | None (0.5 VA offered in single primary only) |
Dimensions
| Dimension E | 0.78 in |
| Dimension G | 0.25 in |
| Overall Dimension A | 1.00 in |
| Overall Dimension B | 0.94 in |
| Overall Dimension C | 0.84 in |
| D Pin (Thickness X Width) | 0.025 x 0.03 in |
Electrical
| Hipot | 2,000V RMS |
| Primary | Single primary 115V |
| Frequency | 60 Hz only |
| Power Rating (VA) | 0.5 |
| Secondary (RMS) Series | 12.6V C.T. @ 40ma |
| Secondary (RMS) Parallel | 6.3V @ 80ma |
| Primary To Secondary Coupling | Low - no electrostatic shield required |
Identifiers
| UPC | 623980210308 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Shipping Weight | 0.1 lbs (0.05 kg) |
Construction & Finish
| Bobbin | Split bobbin design |
| Winding | Concentric wound |
| Insulation Class | Class B - 130 degrees C |
Compliance & Certifications
| UL | Recognized (File #E207860) |
| CSA | Certified (File # LR3902) |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
What output does the 161C12 provide?▾
Its two secondary windings give 12.6V C.T. @ 40ma when connected in series, or 6.3V @ 80ma when connected in parallel. The transformer is rated 0.5 VA.
Can the 161C12 run on 230V?▾
No. The 161C12 has a single 115V primary rated for 60 Hz only. The ordering table lists no dual-primary version at 0.5 VA.
Does it need an electrostatic shield?▾
No. The split bobbin design has low primary-to-secondary coupling, so no electrostatic shield is required.
What certifications and insulation ratings apply?▾
The series is CSA certified (File # LR3902) and UL recognized (File #E207860), with Class B insulation rated 130 degrees C and a hipot of 2,000V RMS. The part is also listed as RoHS and REACH compliant.
How big is the 161C12?▾
The 161 series mechanical table lists overall dimensions of 1.00 x 0.94 x 0.84 in (A x B x C) for the 0.5 VA size. Shipping weight is 0.1 lbs (0.05 kg).
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