Product Overview
Xicon 271-1.0M Metal Film Resistor - 1 Megohm, 1%, 1/4 W, Axial
Condition
The photo show a representative unit from our stock of 250, a light blue cylindrical axial body with color bands and bright silver-colored leads, photographed loose on a dark speckled mat and again alongside a ruler. 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 Xicon ordering number 271-1.0M, the 1 Megohm value in Mouser's Xicon 271 (MF-RC) 1/4 W metal film axial series. Our shelf stock is 250 pieces, sold each. On the photographed unit the leads are full length and uncut, and measured against the ruler in the photos its body is approximately 6 to 7 mm long and about 2.5 mm in diameter, with the part running approximately 60 mm (about 2-3/8 inches) from lead tip to lead tip. Note the value: this listing previously read "1 mohm", which was a transcription of "1.0M" and not a milliohm part - see the questions below.
Key Features
- Resistance 1 Megohm (1 MOhm, 1000000 ohms), per Mouser's published catalogue entry for Xicon 271-1.0M-RC
- Tolerance 1%, per Mouser's published 271 series data
- Power rating 250 mW (1/4 W), per Mouser's published 271 series data
- Temperature coefficient 50 PPM/degC; operating range -55 degC to +155 degC, per Mouser's published 271 series data
- Voltage rating 250 V, per Mouser's published 271 series data
- Composition metal film, established by the 271 (MF-RC) series this stock is held under, not by the photographs
- Axial leads, PCB through-hole mounting; published body 2.5 mm diameter x 6.8 mm long, consistent with our ruler read above
- Verify against Mouser's published Xicon 271 series data before designing in.
Applications
- High-value bias and bleeder positions in analog and audio circuits
- Input and feedback resistors around op-amps where 1% metal film is wanted
- Timing and RC network legs that need a megohm-class leg
- Repair and restoration work calling for a 1/4 W axial 1 Megohm part
Frequently Asked Questions
How many should I order? Order the count your build needs, plus a couple of spares - these are sold each and we have 250 on the shelf, so a run of a few dozen is no trouble. Shipping is $8 flat rate and free on orders over $28, so small parts like this ship smartest as part of a larger order.
Why did this listing say "1 mohm", and what is the value really? The ordering number is the answer. Under Xicon's 271 grammar the suffix is the value with a letter multiplier: 271-680 is 680 ohms and 271-1.0M is 1.0 megohm, and Mouser publishes 271-1.0M-RC at 1 MOhms. The old name collapsed "1.0M" into "milliohm", which is wrong by a factor of a million; no 1/4 W metal film milliohm part exists in this series at all. The body carries color bands, but we are not reading the value off them at photo resolution - the value here is stated from the published catalogue entry for this ordering number.
A megohm is a lot of resistance in a body the size of a grain of rice.
