ORWH-SS-124H3F,000 Equivalent & Substitute Parts

Part Overview

The ORWH-SS-124H3F,000 is a general purpose relay manufactured by TE Connectivity Potter & Brumfield Relays. This SPDT (1 Form C) relay operates on a 24VDC coil and is designed for through-hole mounting with PC pin termination. The component is classified as obsolete, making identification of suitable substitute parts necessary for ongoing system maintenance and new design implementations where equivalent functionality is required.

Substiute Parts

ORWH-SS-124H3F,000

TE Connectivity Potter & Brumfield RelaysIn Stock: 834ORWH-SS-124H3F,000 Datasheet

Current PartRFQ

CB1-P-24V

Panasonic Electric WorksIn Stock: 797CB1-P-24V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ORWH-SS-124H3F,000 is based on the following critical parameters that must align between the main part and substitute candidates:

Primary Compatibility Criteria:

• Coil voltage: 24VDC
• Contact form: SPDT (1 Form C)
• Mounting type: Through Hole
• Termination style: PC Pin
• Coil type: Non Latching

Secondary Compatibility Criteria:

• Contact rating current capacity must equal or exceed 10 A
• Switching voltage must support 28VDC minimum
• Must release voltage must be 2.4 VDC or lower
• Operating temperature range must encompass or exceed -30°C ~ 85°C

The CB1-P-24V from Panasonic Electric Works meets these substitution criteria. While the substitute part exhibits higher contact current rating (20 A versus 10 A), increased coil current (75 mA versus 15 mA), and different timing characteristics, these parameters represent enhanced or equivalent performance within the allowed electrical and mechanical specifications for this relay category.

Parameter Comparison

Engineering Selection Recommendations

The CB1-P-24V serves as a functional substitute for the obsolete ORWH-SS-124H3F,000 based on matching core electrical and mechanical specifications. The substitute part is currently in active production status, ensuring availability for replacement and new applications.

Compliance Considerations:

The CB1-P-24V carries RoHS3 compliance and REACH Unaffected status, providing regulatory alignment for modern manufacturing environments. The original ORWH-SS-124H3F,000 does not specify RoHS compliance due to its obsolete classification.

Both parts carry EAR99 ECCN classification and are subject to the same export control framework.

Performance Differences:

The CB1-P-24V exhibits higher contact current capacity (20 A versus 10 A), which provides margin in applications where the original 10 A rating was utilized. The substitute operates at a lower must-operate voltage (14 VDC versus 16.8 VDC), improving reliability in systems with voltage supply variations.

Increased coil current consumption (75 mA versus 15 mA) and higher operate/release times (15 ms versus 10 ms and 5 ms respectively) represent trade-offs that must be evaluated against specific application timing and power supply constraints.

Frequently Asked Questions (FAQ)

Q: Can the CB1-P-24V directly replace the ORWH-SS-124H3F,000 in existing PCB designs?

A: The CB1-P-24V shares identical mounting type (through hole), termination style (PC pin), coil voltage (24VDC), and contact form (SPDT). Physical footprint compatibility requires verification against the original component's pin spacing and body dimensions, which are not provided in the specification data.

Q: What is the impact of the higher contact current rating on system performance?

A: The CB1-P-24V is rated for 20 A contact current versus the original 10 A rating. This higher rating does not degrade performance in applications using the original 10 A specification; it provides additional capacity margin. Applications must not exceed the 20 A limit of the substitute part.

Q: How do the timing differences affect circuit operation?

A: The CB1-P-24V operates in 15 ms and releases in 15 ms, compared to the original 10 ms operate and 5 ms release times. Applications with timing-critical functions must evaluate whether these longer intervals are acceptable. Circuits with no specific timing constraints are unaffected.

Q: Does the lower must-operate voltage of the CB1-P-24V improve reliability?

A: The CB1-P-24V requires 14 VDC to operate versus 16.8 VDC for the original part. This lower threshold allows the substitute to function reliably in systems experiencing voltage supply variations or drops, provided the supply remains above 14 VDC.

Q: Are there differences in sealing or environmental protection?

A: The original part features sealed flux protection, while the CB1-P-24V is fully sealed. Full sealing provides enhanced protection against moisture and contaminants, suitable for harsh environments.

Q: What is the significance of different contact materials?

A: The original uses Silver Nickel (AgNi) contacts, while the substitute uses Silver Alloy with cadmium-free composition. Both materials are suitable for general purpose relay applications. The cadmium-free specification of the substitute aligns with environmental compliance standards.

Q: Is the higher coil current of the CB1-P-24V a concern?

A: The CB1-P-24V draws 75 mA compared to the original 15 mA. Power supply circuits must provide sufficient current capacity. The substitute's coil power is 1.8W. Circuits designed for the original 15 mA specification must verify that the power supply can deliver 75 mA without voltage regulation issues.

Q: What is the availability status of each part?

A: The ORWH-SS-124H3F,000 is obsolete with 794 pieces in current inventory. The CB1-P-24V is in active production with 728 pieces in current inventory, ensuring long-term availability for future applications and replacements.