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Equivalent & Substitute Parts: 8001-12-001
Part Overview
The Coto Technology 8001-12-001 is a reed relay with single-pole single-throw (SPST) configuration rated for 500 mA at 12VDC coil voltage. The component is currently obsolete but remains in inventory. As an obsolete product, identifying qualified substitutes is essential for maintaining system functionality and ensuring continuity in applications where this relay was originally specified.
Substiute Parts
Key Parameters
| Parameter | 8001-12-001 (Main Part) |
|---|---|
| Coil Voltage | 12VDC |
| Contact Form | SPST-NO (1 Form A) |
| Contact Rating (Current) | 500 mA |
| Switching Voltage | 200VAC, 200VDC - Max |
| Coil Current | 24 mA |
| Mounting Type | Through Hole |
| Operate Time | 0.5 ms |
| Operating Temperature Range | -20°C to 85°C |
| Coil Resistance | 500 Ohms |
| RoHS Status | RoHS Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the 8001-12-001 is determined by the following critical parameters:
- Coil Voltage: Must be 12VDC to ensure direct replacement in existing circuits
- Contact Form: Must be SPST-NO (1 Form A) for equivalent switching functionality
- Contact Rating (Current): Must support minimum 500 mA operation
- Switching Voltage: Must support at least 200VAC and 200VDC maximum
- Mounting Type: Must be Through Hole for PCB compatibility
- Operating Temperature Range: Must encompass the specified -20°C to 85°C range
Two qualified substitutes are identified based on these parameters:
- 8L01-12-001 (Coto Technology): Direct manufacturer successor, maintains all critical parameters and active product status
- DIP12-1A72-12L (Standex-Meder Electronics): Alternative manufacturer solution with higher current rating and compatible core specifications
Parameter Comparison
| Parameter | 8001-12-001 | 8L01-12-001 | DIP12-1A72-12L |
|---|---|---|---|
| Coil Voltage | 12VDC | 12VDC | 12VDC |
| Contact Form | SPST-NO | SPST-NO | SPST-NO |
| Contact Rating (Current) | 500 mA | 500 mA | 1 A |
| Switching Voltage | 200VAC, 200VDC | 200VAC, 200VDC | 200VAC, 200VDC |
| Coil Current | 24 mA | 24 mA | 12 mA |
| Mounting Type | Through Hole | Through Hole | Through Hole |
| Operate Time | 0.5 ms | 0.5 ms | 0.5 ms |
| Release Time | 0.5 ms | 0.5 ms | 0.1 ms |
| Operating Temperature | -20°C to 85°C | -20°C to 85°C | -20°C to 70°C |
| Coil Resistance | 500 Ohms | 500 Ohms | 1 kOhms |
| RoHS Status | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Product Status | Obsolete | Active | Active |
Engineering Selection Recommendations
8L01-12-001 (Recommended Primary Substitute)
The 8L01-12-001 is the recommended primary substitute. As an active product from the original manufacturer (Coto Technology), it maintains identical electrical specifications and is ROHS3 Compliant. This option provides the most direct replacement path with no design modifications required.
DIP12-1A72-12L (Alternative Substitute)
The DIP12-1A72-12L qualifies as an alternative substitute from Standex-Meder Electronics. Key differences include:
- Higher current rating (1 A versus 500 mA) provides additional design margin
- Lower coil current (12 mA versus 24 mA) reduces drive circuit power requirements
- Narrower operating temperature range (-20°C to 70°C versus -20°C to 85°C)
- Higher coil resistance (1 kOhms versus 500 Ohms)
Selection of the DIP12-1A72-12L requires verification that the application does not require operation above 70°C and that the increased coil resistance is compatible with existing drive circuits.
Both substitutes are ROHS3 Compliant and REACH Unaffected, meeting current regulatory compliance standards.
Frequently Asked Questions (FAQ)
Q: Can the 8L01-12-001 be used as a direct pin-compatible replacement?
A: Yes. The 8L01-12-001 maintains identical coil voltage, contact form, current rating, and switching specifications. No circuit modifications are required.
Q: What is the key difference between the DIP12-1A72-12L and the original 8001-12-001?
A: The DIP12-1A72-12L has a higher current rating (1 A versus 500 mA), lower coil current (12 mA versus 24 mA), and a narrower operating temperature range (maximum 70°C versus 85°C). The coil resistance is also higher at 1 kOhms.
Q: Which substitute is better for high-temperature applications above 70°C?
A: The 8L01-12-001 is the only substitute rated to 85°C. For applications requiring operation above 70°C, the DIP12-1A72-12L is not suitable.
Q: Are both substitutes available in the same packaging?
A: Both substitutes are supplied in Tube packaging. The original 8001-12-001 was supplied with packaging designation as "-" (unspecified).
Q: Do the substitutes meet current regulatory compliance?
A: Yes. Both 8L01-12-001 and DIP12-1A72-12L are ROHS3 Compliant and REACH Unaffected.
Q: Can the DIP12-1A72-12L be used if the application only requires 500 mA switching?
A: Yes. The DIP12-1A72-12L is rated for 1 A, making it fully capable of switching 500 mA loads. However, the operating temperature constraint (70°C maximum) must be verified for your application.
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