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Coto Technology 7141-12-1100 Reed Relay SPDT
Part Overview
The Coto Technology 7141-12-1100 is a reed relay with SPDT (Single Pole Double Throw) contact form rated for 250 mA at 12 VDC coil voltage. This part is classified as obsolete, necessitating identification of suitable alternative components for ongoing production or maintenance applications. Active substitute parts with equivalent or superior electrical characteristics are available to ensure design continuity and supply chain reliability.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | 7141-12-1100 |
| Manufacturer | Coto Technology |
| Product Status | Obsolete |
| Series | 7000 |
| Coil Voltage | 12 VDC |
| Contact Form | SPDT (1 Form C) |
| Contact Rating (Current) | 250 mA |
| Switching Voltage | 150 VAC / 150 VDC Max |
| Coil Resistance | 1.1 kOhms |
| Operating Temperature Range | -20°C to 85°C |
| RoHS Status | ROHS3 Compliant |
| Termination Style | PC Pin |
| Mounting Type | Through Hole |
Substitute Part Grouping Explanation
Substitution of the obsolete Coto Technology 7141-12-1100 is permitted with the Coto Technology 2971-12-00 based on the following critical electrical parameters matching or exceeding the original specification:
Matching Parameters:
- Contact form: SPDT (1 Form C)
- Contact rating: 250 mA
- Coil voltage: 12 VDC
- Switching voltage: 150 VAC / 150 VDC Max
- Termination style: PC Pin
- Mounting type: Through Hole
- RoHS compliance: ROHS3 Compliant
The substitute part demonstrates improved performance characteristics in coil current, operate time, release time, and extended operating temperature range, while maintaining full electrical compatibility with the original design requirements.
Parameter Comparison
| Parameter | 7141-12-1100 (Main Part) | 2971-12-00 (Substitute) |
|---|---|---|
| Manufacturer | Coto Technology | Coto Technology |
| Product Status | Obsolete | Active |
| Coil Voltage | 12 VDC | 12 VDC |
| Contact Form | SPDT (1 Form C) | SPDT (1 Form C) |
| Contact Rating (Current) | 250 mA | 250 mA |
| Switching Voltage | 150 VAC / 150 VDC Max | 150 VAC / 150 VDC Max |
| Coil Current | 10.9 mA | 8 mA |
| Coil Resistance | 1.1 kOhms | 1.5 kOhms |
| Must Operate Voltage | 9 VDC | 6.7 VDC |
| Must Release Voltage | 1 VDC | 1 VDC |
| Operate Time | 2 ms | 1 ms |
| Release Time | 2.5 ms | 2 ms |
| Operating Temperature Range | -20°C to 85°C | -40°C to 125°C |
| Termination Style | PC Pin | PC Pin |
| Mounting Type | Through Hole | Through Hole |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Packaging | - | Tube |
Engineering Selection Recommendations
The Coto Technology 2971-12-00 is the appropriate active substitute for the obsolete 7141-12-1100. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements. The substitute part is currently in active production with documented inventory availability, ensuring long-term supply continuity compared to the obsolete original part. The 2971-12-00 provides extended environmental operating range (-40°C to 125°C versus -20°C to 85°C) and reduced coil current draw, presenting improved performance characteristics for new designs or product maintenance requiring the original specification.
Frequently Asked Questions (FAQ)
Q: Can the Coto Technology 2971-12-00 directly replace the 7141-12-1100 in existing applications?
A: Yes. Both parts share identical contact form (SPDT), contact rating (250 mA), coil voltage (12 VDC), switching voltage (150 VAC/150 VDC), and termination configuration (PC Pin through-hole). The substitute meets or exceeds all specified electrical parameters of the original part.
Q: What is the primary difference between these two relay models?
A: The 2971-12-00 operates with lower coil current (8 mA versus 10.9 mA) and faster switching response times (1 ms operate, 2 ms release versus 2 ms and 2.5 ms respectively). It provides an extended operating temperature range supporting applications from -40°C to 125°C compared to the original -20°C to 85°C specification.
Q: Are there packaging considerations for the substitute part?
A: The 2971-12-00 is supplied in Tube packaging, whereas the original 7141-12-1100 packaging specification is not documented. Both parts use identical PC Pin through-hole termination, ensuring compatibility with existing printed circuit board designs.
Q: Why is the 7141-12-1100 marked as obsolete?
A: Manufacturer discontinuation of the 7000 series has made this part unavailable for new orders. The 2971-12-00 from the active 2970 series provides equivalent functionality with improved specifications and guaranteed supply availability.
Q: Are compliance certifications identical between the two parts?
A: Both the 7141-12-1100 and 2971-12-00 are ROHS3 compliant and REACH unaffected, satisfying equivalent regulatory requirements for industrial and consumer applications.
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