A surface-mount device (SMD) 1206 resistor with specific dimensions: 0.12 inches (3.2mm) in length and 0.06 inches (1.5mm) in width. Often in applications that require moderate power ratings, accuracy, and reliability. The 1206 number refers to the physical size of the resistor, specifically its length and width in inches.
1206 resistors widely use in surface-mount technology (SMT). When designing electronic circuits, we need to understand the specifications, values, dimensions, power rating and footprint. Help us design better, more efficient circuits for the projects.
In this post, we’ll dive into everything we need to know about 1206 chip resistor and some FAQs.
(Unit : mm)
(mm) | (inch) |
3216 | 1206 |
L | W | t | a | b |
3.20±0.15 | 1.60±0.15 | 0.55±0.10 | 0.30±0.25 | 0.50±0.25 |
These sizes fit into compact designs while still being large enough to handle moderate power dissipation (typically 0.25W or 0.5W).
The standard Pad sizes:
· Length: 0.125 inches (3.18mm)
· Width: 0.075 inches (1.91mm)
· Spacing: 0.125 inches (3.18mm)
Land pattern example
Unit | A | B | C | D |
mm | 2.20 | 3.90 | 1.60 | 0.85 |
Follow industry-standard value sets, including the E6, E12, E24, E48, and E96 series. Here’s a breakdown of some common values:
Value (Ohms) | ||||||
1 | 1.1 | 1.2 | 1.3 | 1.5 | 1.6 | 1.8 |
2 | 2.2 | 2.4 | 2.7 | 3.0 | 3.3 | 3.6 |
3.9 | 4.3 | 4.7 | 5.1 | 5.6 | 6.0 | 6.2 |
6.8 | 7.5 | 8.2 | 9.1 | 10 | 12 | 13 |
15 | 16 | 18 | 20 | 22 | 24 | 27 |
30 | 33 | 36 | 39 | 47 | 51 | 56 |
62 | 68 | 75 | 82 | 91 | 100 | 120 |
130 | 150 | 160 | 180 | 200 | 220 | 240 |
270 | 300 | 330 | 360 | 390 | 430 | 470 |
510 | 560 | 620 | 680 | 750 | 820 | 910 |
1K | 1.1K | 1.2K | 1.3K | 1.5K | 1.6K | 1.8K |
2.0K | 2.2K | 2.4K | 2.7K | 3.0K | 3.3K | 3.6K |
3.9K | 4.3K | 4.7K | 5.1K | 5.6K | 6.0K | 6.2K |
6.8K | 7.5K | 8.2K | 9.1K | 10K | 12K | 13K |
15K | 16K | 18K | 20K | 22K | 24K | 27K |
30K | 33K | 36K | 39K | 47K | 51K | 56K |
68K | 75K | 82K | 91K | 100K | 120K | 130K |
150K | 160K | 180K | 200K | 220K | 240K | 270K |
300K | 330K | 360K | 390K | 430K | 470K | 510K |
560K | 620K | 680K | 750K | 820K | 910K | 1M |
1.1M | 1.2M | 1.3M | 1.5M | 1.6M | 1.8M | 2M |
2.2M | 2.4M | 2.7M | 3.0M | 3.3M | 3.6M | 3.9M |
4.3M | 4.7M | 5.1M | 5.6M | 6.0M | 6.2M | 6.8M |
7.5M | 8.2M | 9.1M | 10M | 12M | 13M | 15M |
16M | 18M | 20M | 22M | 24M | 27M | 30M |
33M | 36M | 39M | 47M | 51M | 56M | 62M |
68M | 75M | 82M | 91M | 100M | 120M | 130M |
150M | 160M | 180M | 200M | 220M | 240M | 270M |
300M | 330M | 360M | 390M | 430M | 470M | 510M |
560M | 620M | 680M | 750M | 820M | 910M | 1G |
1.1G | 1.2G | 1.3G | 1.5G | 1.6G | 1.8G | 2G |
The variety of resistances values highly versatile for almost any type of electronic circuit.
0.03W (1/32W) | 0.1W (1/10W) | 0.125W (1/8W) | 0.15W | 0.165W |
0.25W (1/4W) | 0.27W | 0.3W | 0.333W (1/3W) | 0.35W |
0.4W | 0.4W (2/5W) | 0.5W (1/2W) | 0.52W | 0.6W |
0.66W | 0.667W (2/3W) | 0.75W (3/4W) | 1W | 1.5W |
2W | 2.4W | 2.5W | 3W | 3.5W |
4W | 5W | 6W | 8W | 10W |
12W | 16W | 20W |
Base on the specific design and material properties of the resistor, with higher power ratings typically requiring larger or specially designed resistors.
Here's a quick breakdown of how these ratings correspond to typical uses:
Low (0.03W to 0.5W): These are most common for standard 1206 SMD resistors. They are for general electronic applications where only small amounts of dissipate power.
Examples: 0.03W (1/32W), 0.1W (1/10W), 0.125W (1/8W), 0.25W (1/4W), 0.5W (1/2W)
Medium (0.6W to 1W): In applications where the resistor needs to handle more power dissipation without excessive heat buildup.
Examples: 0.6W, 0.75W (3/4W), 1W
Higher (2W to 20W): These ratings are less common and would typically in applications requiring more robust heat management and larger resistor sizes. Such resistors often come in larger packages like 2512 or A types for higher wattage handling.
Examples: 2W, 5W, 10W, 20W
Common ratings :0.25W (1/4W) and 0.5W (1/2W)
The dimensions are:
· Length: 0.12 inches (3.2mm)
· Width: 0.06 inches (1.5mm)
· Height: Approximately 0.035 inches (0.9mm)
This is a moderate-size component in the SMD resistors. It offers a balance between compactness and ease of handling for manual or automated soldering processes.
Follows several standard sets Series such as:
· E6 (1, 1.2, 1.5, 1.8, 2.2 ohms, etc.)
· E12 (10, 12, 15, 18, 22 ohms, etc.)
· E24 (100, 120, 150, 180, 220 ohms, etc.)
· E48 and E96 (offer finer increments for highly accurate and specific resistance needs)
These 1206 package resistors are widely available in various resistance values. Enable us to select the exact value needed for our specific applications.
It refers to a surface-mount device (SMD) component with specific dimensions of 0.12 inches (3.2mm) by 0.06 inches (1.5mm). It is a widely-used package size for resistors and capacitors, suitable for general electronic applications. This package is larger than smaller components like 0603,0402 but still compact enough for many types of electronic devices. It provides a balance between size, power handling, and ease of assembly.
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