Description
Genuine OEM Rotary Frequency & Channel Selector Switch
Authentic Motorola 16-position rotary channel selector switch engineered for CP200d, Timor, and DP1400 portable two-way transceivers.
The Motorola 40012029002 (catalog part 40012029002) is an authentic original equipment manufacturer (OEM) rotary frequency channel selector switch designed for Motorola commercial portable radios. Engineered as a precision board-level replacement component, this 16-position rotary switch mounts directly to the transceiver PCB, translating physical dial rotation into digital binary channel inputs. It serves as an essential repair part when original channel selectors suffer from mechanical impacts, snapped control shafts, or erratic channel hopping caused by worn internal wipers.
Manufactured to exact Motorola Solutions factory tolerances, the Motorola 40012029002 features a durable stainless steel actuation shaft and sealed internal gold-plated contacts to ensure low electrical resistance and tactile click detents over tens of thousands of rotation cycles. The switch incorporates sturdy through-hole PCB solder terminals and grounding anchor tabs that secure the component against lateral torque and accidental drop shock. Operating in accordance with commercial FCC Licensing radio maintenance standards, this authentic OEM component eliminates false channel switching and restores crisp, dependable channel selection across CP200d, Timor platform, and DP1400 portable radios.
Key Features & Benefits
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Authentic OEM Replacement: Manufactured directly by Motorola Solutions to deliver exact PCB footprint alignment, pin pitch, and factory electrical specs.
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Positive Click Detents: Delivers crisp, tactile feedback at every channel position so operators can change frequencies confidently by touch without looking at the dial.
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16-Position Channel Selection: Provides full 16-channel binary rotary addressing for seamless codeplug channel navigation.
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Sealed Contact Mechanism: Enclosed internal contact housing prevents ingress of airborne dust, metal shavings, and moisture from compromising contact continuity.
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Reinforced Metal Actuator Shaft: Heavy-duty slotted metal shaft withstands rotational torque and impact forces transferred from the external channel knob.
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Rigid PCB Grounding Anchors: Robust solder mounting tabs provide strong mechanical bonding to the circuit board, preventing trace cracking during rough field use.
Specifications
| Attribute |
Details |
| Brand |
Motorola Solutions |
| Model / SKU |
40012029002 / 40012029 |
| Part Type |
Rotary Frequency Switch / Channel Selector Switch |
| Positions |
16-Position Continuous Rotary Detents |
| Mounting Architecture |
PCB Solder Mount (Through-Hole with Structural Ground Tabs) |
| Shaft Style |
Slotted Metal Actuation Shaft |
| Contact Material |
Gold-Plated Copper Alloy |
| Operating Temperature |
-30°C to +60°C (-22°F to +140°F) |
| Rotational Life |
15,000+ Cycles Minimum |
Compatibility
Compatible Motorola Portable Two-Way Radios
What’s Included
| Description |
SKU/Model |
Status |
| Motorola Rotary Frequency Channel Switch |
40012029002 |
Included |
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Frequently Asked Questions
What function does the Motorola 40012029002 switch perform?
The Motorola 40012029002 is the internal rotary switch located underneath the top channel selection knob. It interfaces with the radio’s microprocessor to select programmed operating frequencies and channels (channels 1 through 16).
What does the "002" part sequence mean?
The "002" designation identifies Motorola Solutions' latest production iteration for this rotary switch assembly (replacing the earlier 40012029001 part number), featuring optimized internal contact metallurgy and reinforced anchor tabs while retaining identical PCB solder pinout.
Does replacing this switch require soldering?
Yes. The Motorola 40012029002 is a board-level repair component requiring desoldering of the damaged switch and precision through-hole soldering onto the radio’s printed circuit board. Bench electronics repair tools and technical expertise are required.
What are common symptoms of a failing channel selector switch?
Symptoms include a channel knob that spins freely without clicking, the radio randomly switching channels or announcing the incorrect channel number, failure to engage specific channels, or an actuator shaft snapped from a drop impact.
Does this part include the plastic channel knob?
No. The 40012029002 includes only the internal electrical rotary switch component. External cosmetic plastic knobs and rubber escutcheon seals are sold separately.
Warranty
1-year manufacturer’s replacement warranty.
