Hammond 156G 9H 40mA Filter Choke, 400V DC Open Bracket
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Create Free Business AccountKey Features
- 9H inductance (+/- 15%) at 40 ma. rated D.C. current
- 300 ohm D.C. resistance (+/- 15%)
- 400 V DC maximum operating voltage
- Economical open bracket channel mount, C6H mounting style
- Every unit Hipot tested (100%) at 1,500 VAC
- Vacuum impregnated with polyurethane varnish for quiet operation and long life
- Minimum 5" long leads
- RoHS and REACH compliant
The 156G is a D.C. reactor, or filter choke, from the 153-159 Series of low to medium current chokes, rated 9H (+/- 15%) at 40 ma. D.C. current. It is intended for engineers and technicians building or repairing power supplies, and the series is described as perfect for high voltage power supply filtering. The 156G offers 9H at 40 ma. with 300 ohms of resistance on the larger C6H frame, rated for 400 V DC maximum operation.
Electrically it offers 300 ohms of D.C. resistance with a 15% tolerance on both inductance and resistance, and a 400 V DC maximum operating rating. Because inductance is specified at rated current, the unit shows less inductance at slightly higher currents and more at lower ones.
Construction uses an economical open bracket channel mount. Units are vacuum impregnated with polyurethane varnish for quiet operation and long life, every unit is Hipot tested (100%) at 1,500 VAC, and leads are a minimum of 5" long.
Its drawing gives dimensions A 2.81" (71.4 mm), B 1.5" (38.1 mm), C 1.69" (42.9 mm) and D 2.38" (60.5 mm), with a weight of 0.5 lbs / 0.23 kg. The part page lists a shipping weight of 0.5 lbs (0.23 kg), and the 156G is RoHS and REACH compliant (UNSPSC 39121301, UPC 623980202501).
Ideal For
- 40 mA high voltage power supply filtering
- 400 V DC reactor applications
- Channel-mounted filter stages
- Power supply repair and replacement
Mounting
| Mounting Style | Open bracket channel mount |
| Mounting Hole (Series Table) | 0.19" |
| Dimension Reference (Mtg. Style) | C6H |
Overview
| Series | 153-159 Series D.C. Reactors or filter chokes |
| Product Type | D.C. reactor / filter choke |
| Current Class | Low to medium current |
| Long Description | DC reactor, filter choke, open channel mount, inductance 9H, DC current 40 ma. |
| Short Description | CHOKE |
| Enclosed-Type Alternative | 193 Series (more sizes and voltages in enclosed-type design) |
Dimensions
| Dimension A | 2.81” / 71.4 mm |
| Dimension B | 1.5” / 38.1 mm |
| Dimension C | 1.69” / 42.9 mm |
| Dimension D | 2.38” / 60.5 mm |
| Dimension G | 0.19” / 4.8 mm |
Electrical
| Hipot Test | Every unit Hipot tested (100%) at 1,500 VAC |
| DC Current | 40 ma. |
| Current Dependence | Less inductance at slightly higher currents, more inductance at lower currents |
| Inductance (+/- 15%) | 9H |
| Inductance Tolerance | 15% |
| Resistance (+/- 15%) | 300 ohms |
| Resistance Tolerance | 15% |
| Inductance Measurement | Measured at rated D.C. current |
| Maximum Operating Volts DC | 400 V |
Identifiers
| UPC | 623980202501 |
| UNSPSC | 39121301 |
| Part Number | 156G |
Packaging & Shipping
| Shipping Weight | 0.5 lbs (0.23 kg) |
| Weight (Drawing) | 0.5 lbs / 0.23 kg |
| Unit Weight (Series Table) | 0.5 lbs |
Construction & Finish
| Leads | Minimum 5" long leads |
| Impregnation | Vacuum impregnated with polyurethane varnish |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
What are the inductance and current ratings of the 156G?▾
The 156G is rated 9H (+/- 15%) at 40 ma. D.C. current, with 300 ohms (+/- 15%) of resistance.
What is the maximum operating voltage of the 156G?▾
The 156G is rated for 400 V DC maximum operating voltage.
Will the 156G hold its inductance at a different current?▾
Inductance is measured at the rated 40 ma.. The series data notes units exhibit less inductance at slightly higher currents and more inductance at lower currents.
How does the 156G mount and how big is it?▾
It uses an economical open bracket channel mount (mounting style C6H). Its drawing gives dimensions A 2.81" (71.4 mm), B 1.5" (38.1 mm), C 1.69" (42.9 mm) and D 2.38" (60.5 mm), with a weight of 0.5 lbs / 0.23 kg.
Is the 156G RoHS and REACH compliant?▾
Yes. The part page lists the 156G as both RoHS compliant and REACH compliant.
Is every 156G tested?▾
Yes. Every unit in the series is Hipot tested (100%) at 1,500 VAC, and units are vacuum impregnated with polyurethane varnish.
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