Hammond 167V7 157.5VA Filament Transformer, 7.5V CT 21A
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Create Free Business AccountKey Features
- 157.5 VA rating from a 115 VAC, 60 Hz primary
- 7.5 V center-tapped secondary rated 21 A RMS
- Body dimensions 3.13 x 3.50 x 3.81 in (A x B x C) per series drawing
- Four-hole chassis mount with 0.20 x 0.38 in mounting slots
- Dual bobbin construction, no electrostatic shield required
- Class B (130 degrees C) insulation, 2,000 V RMS Hi-Pot tested
- UL listed E50394, CSA certified 209651, RoHS and REACH compliant
The 167V7 is a 157.5 VA enclosed filament and rectifier transformer in the 167 Series, listed in its short description as FIL-RECT 158VA 115 7 SCT. It accepts a 115 VAC, 60 Hz primary and delivers 7.5 V center-tapped (RMS) at 21 A, giving designers of amplifiers, test gear and custom power supplies a heavy-current low voltage winding in a compact enclosed package.
Construction follows the 167 Series design: an enclosed body with four-hole chassis mounting, a dual bobbin arrangement that removes the need for an electrostatic shield, Class B insulation rated for 130 degrees C, and a 2,000 V RMS Hi-Pot test. Leads are a minimum of 6 inches long.
- Dimension A: 3.13 in (80 mm)
- Dimension B: 3.50 in (89 mm)
- Dimension C: 3.81 in (97 mm)
- Dimension D: 2.50 in (64 mm)
- Dimension E: 2.19 in (56 mm)
- Mounting slot G: 0.20 in (5 mm) x 0.38 in (10 mm)
These lettered dimensions correspond to the 167 Series drawing, and the 167V7 shares its body size with the 167X5. The transformer is UL listed (E50394), CSA certified (209651), and RoHS and REACH compliant. Shipping weight is 5.2 lbs (2.36 kg).
Ideal For
- 7.5 V filament heater supplies
- Low voltage rectifier power supplies
- Equipment chassis power conversion
- Replacement filament transformers
Mounting
| Mounting Style | 4 hole chassis mount |
| Mounting Slot G | 0.20 in (5 mm) x 0.38 in (10 mm) |
Overview
| Type | Enclosed, chassis mount power transformer - 115 V primary |
| Series | 167 Series - Low Voltage, Filament (15 VA to 640 VA) |
| Description | Power transformer, low voltage, enclosed chassis mount, 158VA 115 7 SCT |
| Part Number | 167V7 |
| Short Description | FIL-RECT 158VA 115 7 SCT |
Dimensions
| Dimension A | 3.13 in (80 mm) |
| Dimension B | 3.50 in (89 mm) |
| Dimension C | 3.81 in (97 mm) |
| Dimension D | 2.50 in (64 mm) |
| Dimension E | 2.19 in (56 mm) |
Electrical
| Primary | 115 VAC, 60 Hz. |
| Hi-Pot Test | 2,000V RMS |
| Power Rating | 157.5 VA |
| Secondary Configuration | Center tapped |
| Secondary Current (RMS) | 21 A |
| Secondary Voltage (RMS) | 7.5 C.T. VAC |
Identifiers
| UPC | 623980237800 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Shipping Weight | 5.2 lbs (2.36 kg) |
Construction & Finish
| Leads | Minimum 6" long |
| Enclosure | Enclosed |
| Insulation | Class B (130 degrees C) |
| Winding Design | Dual bobbin - no electrostatic shield required |
Compliance & Certifications
| UL | UL listed (# E50394) |
| CSA | CSA certified (209651) |
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
What output does the 167V7 provide?▾
7.5 V center-tapped RMS at 21 A from a 115 VAC, 60 Hz primary, for a 157.5 VA rating.
What are the 167V7 dimensions?▾
Per the series table: A 3.13 in (80 mm), B 3.50 in (89 mm), C 3.81 in (97 mm), D 2.50 in (64 mm), E 2.19 in (56 mm), with 0.20 x 0.38 in (5 x 10 mm) mounting slots.
Why does the description say 158VA?▾
The short description rounds the rating to 158VA; the listed power rating is 157.5 VA.
Does the 167V7 need an electrostatic shield?▾
No. The dual bobbin design means no electrostatic shield is required.
How long are the leads?▾
The 167 Series uses leads that are a minimum of 6 inches long.
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