Hammond 157E 6mH 4A DC Reactor, 500V Open Channel Mount
Ships from and sold by A5 IT
Exclusive pricing and Net-30 terms. Sign in or create a free account.
Create Free Business AccountKey Features
- 6mH inductance (+/- 15%) at 4A rated D.C. current
- 0.133 ohm D.C. resistance (+/- 15%)
- 500 V DC maximum operating voltage
- Economical open bracket channel mount, C9H 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 157E is a D.C. reactor, or filter choke, from the 153-159 Series of low to medium current chokes, rated 6mH (+/- 15%) at 4A 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 157E is rated 6mH at 4 A with 0.133 ohms of resistance and a 500 V DC maximum operating voltage, on the C9H frame.
Electrically it offers 0.133 ohms of D.C. resistance with a 15% tolerance on both inductance and resistance, and a 500 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.
The series table lists the C9H mounting style at A 3.25", B 1.75", C 2.00" and D 2.81" with a 0.19" mounting hole, and a unit weight of 1 lbs. The part page lists a shipping weight of 1 lbs (0.45 kg), and the 157E is RoHS and REACH compliant (UNSPSC 39121301, UPC 623980186177).
Ideal For
- 4 A DC filtering
- DC reactor for circuits up to 500 V DC
- Chassis-mounted current-carrying chokes
- Power supply repair and replacement
Mounting
| Mounting Style | Open bracket channel mount |
| Mounting Hole (Series Table) | 0.19" |
| Dimension Reference (Mtg. Style) | C9H |
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 6mH, DC current 4A |
| Short Description | CHOKE |
| Enclosed-Type Alternative | 193 Series (more sizes and voltages in enclosed-type design) |
Dimensions
| Dimension A (Series Table, C9H) | 3.25" |
| Dimension B (Series Table, C9H) | 1.75" |
| Dimension C (Series Table, C9H) | 2.00" |
| Dimension D (Series Table, C9H) | 2.81" |
Electrical
| Hipot Test | Every unit Hipot tested (100%) at 1,500 VAC |
| DC Current | 4A (series table: 4 A) |
| Current Dependence | Less inductance at slightly higher currents, more inductance at lower currents |
| Inductance (+/- 15%) | 6mH |
| Inductance Tolerance | 15% |
| Resistance (+/- 15%) | 0.133 ohms |
| Resistance Tolerance | 15% |
| Inductance Measurement | Measured at rated D.C. current |
| Maximum Operating Volts DC | 500 V |
Identifiers
| UPC | 623980186177 |
| UNSPSC | 39121301 |
| Part Number | 157E |
Packaging & Shipping
| Shipping Weight | 1 lbs (0.45 kg) |
| Unit Weight (Series Table) | 1 lbs |
Construction & Finish
| Leads | Minimum 5" long leads |
| Impregnation | Vacuum impregnated with polyurethane varnish |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
Purchasing this for your business?
Business account holders get access to exclusive pricing, volume discounts, and dedicated support. Create a free account to get started.
Frequently Asked Questions
What are the inductance and current ratings of the 157E?▾
The 157E is rated 6mH (+/- 15%) at 4A D.C. current, with 0.133 ohms (+/- 15%) of resistance.
What is the maximum operating voltage of the 157E?▾
The 157E is rated for 500 V DC maximum operating voltage.
Will the 157E hold its inductance at a different current?▾
Inductance is measured at the rated 4A. The series data notes units exhibit less inductance at slightly higher currents and more inductance at lower currents.
How does the 157E mount and how big is it?▾
It uses an economical open bracket channel mount (mounting style C9H). The series table lists the C9H mounting style at A 3.25", B 1.75", C 2.00" and D 2.81" with a 0.19" mounting hole, and a unit weight of 1 lbs.
Is the 157E RoHS and REACH compliant?▾
Yes. The part page lists the 157E as both RoHS compliant and REACH compliant.
Is every 157E tested?▾
Yes. Every unit in the series is Hipot tested (100%) at 1,500 VAC, and units are vacuum impregnated with polyurethane varnish.
Related Products
Save 52%157D — DC reactor, filter choke, open channel mount, inductance 1mH, DC current 10A
Hammond Manufacturing · 157D
Save 52%157G — DC reactor, filter choke, open channel mount, inductance 30H, DC current 40 ma.
Hammond Manufacturing · 157G
Save 52%156R — DC reactor, filter choke, open channel mount, inductance 1.5H, DC current 200 ma.
Hammond Manufacturing · 156R
Save 52%157H — DC reactor, filter choke, open channel mount, inductance 10H, DC current 50 ma.
Hammond Manufacturing · 157H
Save 52%156M — DC reactor, filter choke, open channel mount, inductance 3H, DC current 100 ma.
Hammond Manufacturing · 156M