Trimmer potentiometer SM-42
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SM-42
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SM-42
- ●To make a purchase, contact Distributors, or use e-commerce below.
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Multiturn Surface Mount Cermet Trimmers (11 turns)
FeaturesFeatures
- Multiturn type: 11 turns
- Fine adjustment is available
- Automatic mounting is available (Taping)
- Reflow soldering is available
- Sealed construction (Washable)
- Resin material is UL Recognized 94V-0
- Top adjustment type with gull wing terminals available
(Compare: Not available in SM-3/31 series) - In this series, material data sheets ideal for REACH-SVHC
surveys etc. can be downloaded in chemSHERPA-AI format. - Download chemSHERPA-AI from the list of P/N below
Electrical Characteristics
| Power ratings | 0.25 W (85 °C) 0 W (150 °C) |
|---|---|
| Nominal resistance range | 10 Ω ~ 2 MΩ |
| Resistance tolerance | ± 10 % |
| Resistance law | Linear law (B) |
| Maximum input voltage | 300 VDC or power rating, whichever is smaller |
| Maximum wiper current | 100 mA or power rating, whichever is smaller |
| Effective electrical turn | 11 turns (cf. SM-43: 5 turns) |
| End resistance | 1 % or 2 Ω, whichever is greater |
| C.R.V. | 1 % or 3 Ω, whichever is greater |
| Operating temp. range | -65 ~ 150 °C |
| Temp. coefficient | ±100 10-6/°C maximum |
| Insulation resistance | 100 MΩ minimum (500 VDC) |
| Dielectric strength | 600 VAC, 60 s |
| Net weight | Approx. 0.17 g |
Mechanical Characteristics
| Operating torque | 17.6 mN·m {180 gf·cm} maximum |
|---|---|
| Mechanical stop | Clutch action |
| Rotational life | 200 cycles [ΔR/R ≦ ± (3 Ω +3 %)] |
| Thrust to shaft | 5 N {0.51 kgf} minimum |
| Solderability | 245 ± 3 °C, 2~3 s |
| Shear (Adhesion) | 5 N {0.51 kgf} 10 s |
| Substrate bending | Width 90 mm, bend 3 mm, 5 s, 1 time |
| Pull-off strength | 5 N {0.51 kgf} 10 s |
Environmental Characteristics
| Test item | Test conditions | Specifications |
|---|---|---|
| Thermal shock | -65~125 °C (0.5 h), 5 cycles | [ΔR/R ≦ 2%] [S.S. ≦ 1%] |
| Humidity | -10~65 °C (Relative humidity 80~98 %), 10 cycles, 240 h | [ΔR/R ≦ 2%] |
| Shock | 981 m/s2, 6 ms 6 directions for 3 times each | [ΔR/R ≦ 1%] [S.S. ≦ 1%] |
| Vibration | Amplitude 1.52 mm or Acceleration 196 m/s2, 10~2000 Hz, 3 directions, 12 times each | [ΔR/R ≦ 1%] [S.S. ≦ 1%] |
| Load life | 85 °C, 0.25 W, 1000 h | [ΔR/R ≦ 3 % or 3 Ω] [S.S. ≦ 2 %] |
| Low temperature operation | -65 °C, 2 h | [ΔR/R ≦ 1 %] [S.S. ≦ 1 %] |
| High temperature exposure | 150 °C, 250 h | [ΔR/R ≦ 2 %] [S.S. ≦ 1 %] |
| Immersion seal | 85 °C, 60 s | No leaks (No continuous bubbles) |
| Soldering heat |
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[ΔR/R ≦ 1%] |
Δ R/R: Change in total resistance
S.S.: Setting stability
〈Reflow profile for soldering heat evaluation〉
Maximum Input Ratings
| Nominal resistance values(Ω) | Resistance code | Maximum input voltage(V) | Maximum wiper current (mA) |
|---|---|---|---|
| 10※ | 100 | 1.00 | 100 |
| 20※ | 200 | 2.00 | 100 |
| 50 | 500 | 3.53 | 70.7 |
| 100 | 101 | 5.00 | 50.0 |
| 200 | 201 | 7.07 | 35.4 |
| 500 | 501 | 11.2 | 22.4 |
| 1k | 102 | 15.8 | 15.8 |
| 2k | 202 | 22.4 | 11.2 |
| 5k | 502 | 35.4 | 7.07 |
| 10k | 103 | 50.0 | 5.00 |
| 20k | 203 | 70.7 | 3.54 |
| 50k | 503 | 112 | 2.24 |
| 100k | 104 | 158 | 1.58 |
| 200k | 204 | 223 | 1.12 |
| 500k | 504 | 300 | 0.60 |
| 1M | 105 | 300 | 0.30 |
| 2M | 205 | 300 | 0.15 |
The products indicated by ※ mark are manufactured upon receipt of order basis.
Part Number Designation
| SM-4 | 2 | T | W | 100 Ω (101) |
|---|---|---|---|---|
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Series |
Electrical turn 2: 11 turns 3: 5 turns |
Form of packaging T: Taping (Reel) Blank: Bulk in plastic bag |
Terminal shape (Adjust Pos.) W: J-hook (Top adjustment) X: Gull wing (Top adjustment) A: J-hook (Side adjustment) B: Gull wing (Side adjustment) |
Resistance value (Resistance code) |
| Nominal resistance values | 10Ω*, 20Ω*, 50Ω, 100Ω, 200Ω, 500Ω, 1kΩ, 2kΩ, 5kΩ, 10kΩ, 20kΩ, 50kΩ, 100kΩ, 200kΩ, 500kΩ, 1MΩ, 2MΩ |
|---|
When ordering, please be sure to include the above nominal resistance value at the end of the part number in the table list below. *10 Ω item, 20 Ω item are made to order.
For resistance code, please refer to the Maximum Input Ratings table in the previous section.
List of Part Numbers
CAD and chemSHERPA-AI (a material data sheet ideal for REACH surveys, etc. / version: 2.09.00) can be downloaded from the popup for each P/N in the table below. *Need to log in to download.
| Part No. | Electrical turns | Adjustment position | Shape of terminal | Form of packaging | Packaging quantity | Material data | CAD |
|---|---|---|---|---|---|---|---|
| SM-42TW | 11 turns | Top adjustment | J-hook | Taping (Reel) |
250 pcs./reel | ||
| SM-42W | 11 turns | Top adjustment | J-hook | Plastic bag | 50 pcs./pack | ||
| SM-42TX | 11 turns | Top adjustment | Gull wing | Taping (Reel) |
250 pcs./reel | ||
| SM-42X | 11 turns | Top adjustment | Gull wing | Plastic bag | 50 pcs./pack | ||
| SM-42TA | 11 turns | Side adjustment | J-hook | Taping (Reel) |
500 pcs./reel | ||
| SM-42A | 11 turns | Side adjustment | J-hook | Plastic bag | 50 pcs./pack | ||
| SM-42TB | 11 turns | Side adjustment | Gull wing | Taping (Reel) |
500 pcs./reel | ||
| SM-42B | 11 turns | Side adjustment | Gull wing | Plastic bag | 50 pcs./pack |
※
Taping specification is not sold separately and must be purchased in reel units.
Recommended P.C.B. Pad Outline Dimensions
(Unit:mm)
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Outline Dimensions
Unless otherwise specified, tolerance: ± 0.3 (Unit: mm)
Environmental Data
- ●The above contents and descriptions are subject to change without notice.
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