Hammond 160H12 24VA 12.6V Center-Tapped Dual Primary PCB Transformer
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Create Free Business AccountKey Features
- 24 VA rating with 12.6V C.T. @ 2A secondary (series connection)
- Parallel secondary connection delivers 6.3V @ 4A
- Universal dual 115/230V primary, 50/60 Hz
- Vertical PC board mount, split bobbin, non-concentric wound
- Drawing-specified excitation current: 90mA max @ 115V, 60Hz
- Class B insulation (130 degrees C), hipot 2,000V RMS
- CSA certified (File # LR3902) and UL recognized (File #E207860)
- RoHS and REACH compliant
The 160H12 is a low voltage, vertical PC board mount power transformer with a universal dual 115/230V primary rated for 50/60 Hz. Rated 24 VA, it is intended for higher-current board-mounted supplies for control, audio, instrumentation and embedded equipment sold into 115V and 230V regions.
The secondary is made of two windings. Connected in series they deliver 12.6V C.T. @ 2A; connected in parallel they deliver 6.3V @ 4A. 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.
The 24 VA size is the largest rating in the 160-161 range and is non-concentric wound. The 160 series mechanical table lists overall dimensions of 1.63 x 2.25 x 1.38 in (A x B x C), 0.02 x 0.04 in pins and dimension E of 2.10 in; shipping weight is 0.8 lbs (0.36 kg). The single 115V primary, 60 Hz version is 161H12.
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.
The 160H12 part drawing adds test data: excitation current of 90mA max at 115V, 60Hz on pins 1-2; no-load secondary voltage of 7.381V ±2% on each of pins 5-6 and 7-8; and a primary-to-secondary hipot of 2000V, 60Hz for 1 second. Drawing dimensions are 1.625" x 2.226" x 1.375" (A x B x C, ±0.063).
Ideal For
- 24 VA PC board mounted power supplies
- Center-tapped or parallel low voltage secondary supply
- Equipment designed for both 115V and 230V mains
- 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, 115/230V primary, 24VA, 12.6V C.T. @ 2A sec |
| Part Number | 160H12 |
| Product Type | Low voltage PC board mount power transformer |
| Drawing Revision | 0 - Released 02/18/26 |
| Short Description | POWER TX 24VA 115/230V |
| Single Primary 115V Equivalent | 161H12 |
Dimensions
| Dimension A | 1.625" ±0.063 |
| Dimension B | 2.226" ±0.063 |
| Dimension C | 1.375" ±0.063 |
| Dimension E | 2.100" ±0.030 |
| Dimension F | 0.190" ±0.005 |
| Pin Size (D) | 0.018" x 0.041" ±0.005 |
| Series Table Dimension E | 2.10 in |
| Series Table Dimension G | 0.25 in |
| Series Table D Pin (Thickness X Width) | 0.02 x 0.04 in |
| Series Table Overall Dimensions (A X B X C) | 1.63 x 2.25 x 1.38 in |
Electrical
| Hipot | 2,000V RMS |
| Primary | Dual primary 115/230V |
| Frequency | 50/60 Hz |
| Power Rating (VA) | 24 |
| Hipot Test (Drawing) | Primary - secondary, 2000V, 60Hz, 1 sec |
| Secondary (RMS) Series | 12.6V C.T. @ 2A |
| Excitation Current (Iex) | 90mA max @ 115V, 60Hz, pin 1 - pin 2 |
| Secondary (RMS) Parallel | 6.3V @ 4A |
| DC Resistance, Pin 1 - Pin 2 | 64.86 ±20% @ 20°C |
| DC Resistance, Pin 3 - Pin 4 | 69.26 ±20% @ 20°C |
| DC Resistance, Pin 5 - Pin 6 | 0.251 ±20% @ 20°C |
| DC Resistance, Pin 7 - Pin 8 | 0.251 ±20% @ 20°C |
| Primary To Secondary Coupling | Low - no electrostatic shield required |
| No-Load Voltage, Pin 3 - Pin 4 | 115.0V ±2% (@ 115V, 60Hz on pin 1 - pin 2) |
| No-Load Secondary Voltage, Pin 5 - Pin 6 | 7.381V ±2% (@ 115V, 60Hz on pin 1 - pin 2) |
| No-Load Secondary Voltage, Pin 7 - Pin 8 | 7.381V ±2% (@ 115V, 60Hz on pin 1 - pin 2) |
Identifiers
| UPC | 623980209425 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Shipping Weight | 0.8 lbs (0.36 kg) |
Construction & Finish
| Bobbin | Split bobbin design |
| Winding | Non-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 160H12 provide?▾
Its two secondary windings give 12.6V C.T. @ 2A when connected in series, or 6.3V @ 4A when connected in parallel. The transformer is rated 24 VA.
Can the 160H12 run on 230V?▾
Yes. It has a universal dual primary rated 115/230V at 50/60 Hz.
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 160H12?▾
The part drawing gives A 1.625", B 2.226" and C 1.375" (each ±0.063), with pin size 0.018" x 0.041". Shipping weight is 0.8 lbs (0.36 kg).
What is the excitation current of the 160H12?▾
The drawing specifies 90mA maximum at 115V, 60Hz across pins 1-2.
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