Product Overview
Bourns RLB1008-270M - 27 uH radial lead drum core inductor
Condition
New. The photo shows a representative unit from our stock. Same or next business day shipping from our Idaho warehouse. Honest pricing, no nonsense. Online since 1999. We are here for our customers, with a no-hassle satisfaction guarantee.
Product Overview
This is a through-hole radial leaded drum core inductor, sold each off a shelf count of 489, held in our catalogue under the designation Bourns RLB1008-270M at 27 uH. No marking of any kind is visible on the photographed unit, so the brand, the part number and the value on this card are the designation this stock is held under here, not something read off the body.
Key Features
- Held and sold under the designation Bourns RLB1008-270M, 27 uH nominal. That is our stock record for this shelf, stated plainly, not a reading of the part.
- No part number, inductance value, maker name or color marking is visible on the unit in these photos.
- Form as photographed: a black drum core with a flange at each end and a bare coppery winding fully exposed between the flanges, roughly ten visible turns in a single layer, with no sleeve or tubing over it.
- Two straight silver-colored radial leads exit the same flange, running roughly parallel. This is a through-hole part, not a surface mount chip inductor.
- Bourns' published RLB model list carries no 1008 size, and offers 27 uH only with a K tolerance letter.
- No current rating, DC resistance, self-resonant frequency, Q or tolerance is published on this card. None of those is established for this unit and we are not going to guess at one.
- No dimensions are given either. There is no ruler or scale reference in the photos.
- Verify against Bourns' published RLB series data before designing in.
Applications
- Filtering and energy storage on through-hole power supply boards
- DC line chokes and supply decoupling in hobby and prototype builds
- Bench stock for repairs where a radial leaded drum inductor has to be replaced
- Breadboard and perfboard work where a leaded part beats a chip part
Frequently Asked Questions
How many should I order? Order the count your build actually needs. There are 489 on the shelf here as of this writing, all sold each, so there is no forced bag of fifty and no reason to round up. Shipping is $8 flat rate and free on orders over $28, so parts like this ship smartest as part of a larger order.
Is the value or part number printed on the part? Not on the unit we photographed. That unit has a bare winding and a clean black core with nothing legible visible on it, which is normal enough for leaded inductors but does mean the part cannot identify itself in your hand. If your build depends on the exact inductance, put one unit on an LCR meter before you commit the rest of them to a board.
Ten turns of coppery wire on a black drum, no name visible on it, doing the quiet job a choke does once you have put a meter on one and know what you have.
