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RY612048 General Purpose Relay SPDT 8A 48VDC Equivalent & Substitute Parts
Part Overview
The RY612048 is a general purpose relay manufactured by TE Connectivity Potter & Brumfield Relays, featuring a single pole double throw (SPDT) contact configuration with an 8A contact rating and 48VDC coil voltage. This through-hole mounted relay is designed for applications requiring sealed, non-latching relay operation across industrial and commercial environments. The part is currently active in production with full RoHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained, ensuring direct functional replacement without circuit redesign.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Coil Voltage | 48VDC |
| Contact Form | SPDT (1 Form C) |
| Contact Rating (Current) | 8 A |
| Switching Voltage (Max) | 400VAC |
| Mounting Type | Through Hole |
| Termination Style | PC Pin |
| Seal Rating | Sealed - Fully |
| Operating Temperature Range | -40°C ~ 70°C |
| Contact Material | Silver Nickel (AgNi) |
| Coil Type | Non Latching |
| Coil Resistance | 9.4 kOhms |
| Must Operate Voltage | 33.6 VDC |
| Must Release Voltage | 4.8 VDC |
| Operate Time | 9 ms |
| Release Time | 5 ms |
| Coil Current | 5.1 mA |
Substitute Part Grouping Explanation
Substitute parts for the RY612048 are identified based on strict electrical and mechanical parameter equivalence. The following parameters determine substitution eligibility:
Critical Electrical Parameters:
- Coil voltage: 48VDC
- Contact form: SPDT (1 Form C)
- Contact rating: 8 A
- Switching voltage: 400VAC maximum
- Coil resistance: 9.4 kOhms
- Coil current: 5.1 mA
- Must operate voltage: 33.6 VDC
- Must release voltage: 4.8 VDC
Critical Mechanical Parameters:
- Mounting type: Through Hole
- Termination style: PC Pin
- Seal rating: Sealed - Fully
- Contact material: Silver Nickel (AgNi)
Performance Parameters:
- Operating temperature range: -40°C ~ 70°C
- Operate time: 9 ms
- Release time: 5 ms
- Coil type: Non Latching
Parts meeting all these parameters are classified as parametric equivalents and direct substitutes.
Parameter Comparison
| Parameter | RY612048 | RY611048 | Match Status |
|---|---|---|---|
| Manufacturer | TE Connectivity Potter & Brumfield Relays | TE Connectivity Potter & Brumfield Relays | Identical |
| Series | RY, SCHRACK | RY, SCHRACK | Identical |
| Coil Voltage | 48VDC | 48VDC | Identical |
| Contact Form | SPDT (1 Form C) | SPDT (1 Form C) | Identical |
| Contact Rating (Current) | 8 A | 8 A | Identical |
| Switching Voltage (Max) | 400VAC | 400VAC | Identical |
| Coil Current | 5.1 mA | 5.1 mA | Identical |
| Coil Type | Non Latching | Non Latching | Identical |
| Mounting Type | Through Hole | Through Hole | Identical |
| Termination Style | PC Pin | PC Pin | Identical |
| Seal Rating | Sealed - Fully | Sealed - Fully | Identical |
| Must Operate Voltage | 33.6 VDC | 33.6 VDC | Identical |
| Must Release Voltage | 4.8 VDC | 4.8 VDC | Identical |
| Operate Time | 9 ms | 9 ms | Identical |
| Release Time | 5 ms | 5 ms | Identical |
| Operating Temperature | -40°C ~ 70°C | -40°C ~ 70°C | Identical |
| Contact Material | Silver Nickel (AgNi) | Silver Nickel (AgNi) | Identical |
| Coil Resistance | 9.4 kOhms | 9.4 kOhms | Identical |
| Product Status | Active | Active | Identical |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Identical |
| REACH Status | REACH Unaffected | REACH Unaffected | Identical |
Engineering Selection Recommendations
The RY611048 is a direct parametric equivalent to the RY612048. Both parts are manufactured by TE Connectivity Potter & Brumfield Relays within the RY and SCHRACK series, with identical electrical specifications, mechanical configurations, and performance characteristics. Both parts maintain active product status and carry equivalent compliance certifications including RoHS3 compliance and REACH unaffected status.
Selection between RY612048 and RY611048 may be based on inventory availability and procurement lead times. The RY611048 currently maintains higher inventory levels (1405 pieces) compared to the RY612048 (1176 pieces). Both parts are supplied in bulk packaging and are suitable for direct substitution in through-hole PCB applications requiring 48VDC SPDT relay functionality with 8A contact rating.
Frequently Asked Questions (FAQ)
Q: Can RY611048 be used as a direct replacement for RY612048?
A: Yes. The RY611048 is a parametric equivalent with identical electrical and mechanical specifications. All critical parameters including coil voltage, contact form, contact rating, switching voltage, operating temperature range, and termination style are identical. Direct substitution is supported without circuit modification.
Q: Are there any differences in compliance or certification between these parts?
A: No. Both RY612048 and RY611048 carry identical RoHS3 compliance and REACH unaffected status. Both parts are manufactured by the same supplier and maintain the same regulatory standing.
Q: What is the difference between the RY612048 and RY611048 part numbers?
A: The part numbers differ in their base product designations (RY6120 versus RY6110), but all electrical and mechanical parameters are identical. The difference reflects internal manufacturer product line organization and does not affect functional performance or compatibility.
Q: Are these relays suitable for PCB through-hole mounting?
A: Yes. Both parts feature through-hole mounting with PC pin termination style, designed for direct insertion into printed circuit board applications.
Q: What is the operating voltage range for these relays?
A: The coil voltage is rated at 48VDC. The must operate voltage is 33.6 VDC and the must release voltage is 4.8 VDC. The contact switching capability extends to 400VAC maximum.
Q: What is the contact switching capacity?
A: Both relays support 8A contact rating at 400VAC maximum switching voltage with SPDT (1 Form C) contact configuration.
Q: Are these relays sealed?
A: Yes. Both RY612048 and RY611048 feature fully sealed construction, providing protection against environmental contamination.
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