OUDH-SS-112D,000 Equivalent & Substitute Parts

Part Overview

The OUDH-SS-112D,000 is a general purpose relay manufactured by TE Connectivity Potter & Brumfield Relays, configured as a Single Pole Double Throw (SPDT) contact form with a 12VDC coil and 10A contact rating. This through-hole mounted relay features sealed flux protection and is designed for general purpose switching applications up to 240VAC or 110VDC.

The OUDH-SS-112D,000 is classified as obsolete. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and new design requirements where this legacy component is specified or currently deployed.

Key Parameters

Parameter	Value
Coil Voltage	12VDC
Contact Form	SPDT (1 Form C)
Contact Rating (Current)	10 A
Switching Voltage (Max)	240VAC, 110VDC
Mounting Type	Through Hole
Termination Style	PC Pin
Coil Current	37.5 mA
Coil Resistance	320 Ohms
Operating Temperature Range	-30°C ~ 60°C
Seal Rating	Sealed - Flux Protection
Contact Material	Silver Tin Oxide (AgSnO)

Substitute Part Grouping Explanation

Substitution of the OUDH-SS-112D,000 is based on the following critical parameters that must align between the main part and substitute candidates:

Primary Substitution Criteria:

Coil voltage: 12VDC (exact match required)
Contact form: SPDT (1 Form C) (exact match required)
Mounting type: Through Hole (exact match required)
Termination style: PC Pin (exact match required)

Secondary Compatibility Parameters:

Contact rating current: Equal to or greater than 10A
Switching voltage: Equal to or greater than 240VAC / 110VDC
Coil type: Non Latching (exact match required)
Relay type: General Purpose (exact match required)

The RTB14012F meets all primary substitution criteria and exceeds secondary compatibility parameters, making it a valid substitute for the obsolete OUDH-SS-112D,000.

Parameter Comparison

Parameter	OUDH-SS-112D,000	RTB14012F	Compatibility
Manufacturer	TE Connectivity Potter & Brumfield Relays	TE Connectivity Potter & Brumfield Relays	Same
Coil Voltage	12VDC	12VDC	Match
Contact Form	SPDT (1 Form C)	SPDT (1 Form C)	Match
Contact Rating (Current)	10 A	12 A	Substitute Exceeds
Switching Voltage (Max)	240VAC, 110VDC	400VAC	Substitute Exceeds
Mounting Type	Through Hole	Through Hole	Match
Termination Style	PC Pin	PC Pin	Match
Coil Current	37.5 mA	33.3 mA	Substitute Lower
Coil Resistance	320 Ohms	360 Ohms	Substitute Higher
Coil Type	Non Latching	Non Latching	Match
Relay Type	General Purpose	General Purpose	Match
Operate Time	10 ms	8 ms	Substitute Faster
Release Time	5 ms	6 ms	Substitute Slower
Operating Temperature Range	-30°C ~ 60°C	-40°C ~ 85°C	Substitute Wider
Seal Rating	Sealed - Flux Protection	Sealed - Fully	Substitute Enhanced
Contact Material	Silver Tin Oxide (AgSnO)	Silver Nickel (AgNi)	Different Material
Product Status	Obsolete	Active	Substitute Active
RoHS Status	Not Specified	ROHS3 Compliant	Substitute Compliant

Engineering Selection Recommendations

The RTB14012F is a suitable substitute for the obsolete OUDH-SS-112D,000 based on the following factors:

Product Status: The OUDH-SS-112D,000 is obsolete, while the RTB14012F is active and currently in production. This ensures long-term availability and supply chain continuity.

Electrical Compatibility: Both relays share identical coil voltage (12VDC), contact form (SPDT), and coil type (Non Latching). The RTB14012F provides higher contact current rating (12A versus 10A) and higher maximum switching voltage (400VAC versus 240VAC), making it suitable for applications requiring the original specifications.

Mechanical Compatibility: Both relays feature through-hole mounting with PC pin termination, ensuring direct compatibility with existing printed circuit board layouts.

Environmental Performance: The RTB14012F operates across a wider temperature range (-40°C to 85°C versus -30°C to 60°C) and features fully sealed construction compared to flux protection sealing, providing enhanced environmental protection.

Regulatory Compliance: The RTB14012F is ROHS3 compliant, meeting current regulatory requirements for new designs and replacements.

Operational Characteristics: The RTB14012F exhibits faster operate time (8ms versus 10ms) and lower coil current draw (33.3mA versus 37.5mA), which may provide marginal benefits in power-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can the RTB14012F directly replace the OUDH-SS-112D,000 in existing applications?

A: Yes. Both relays share identical coil voltage, contact form, mounting type, and termination style. The RTB14012F meets or exceeds all electrical specifications of the original part.

Q: What are the differences in contact material between these relays?

A: The OUDH-SS-112D,000 uses Silver Tin Oxide (AgSnO) contacts, while the RTB14012F uses Silver Nickel (AgNi) contacts. Both materials are suitable for general purpose switching applications. Contact material selection affects arc resistance and contact wear characteristics under specific load conditions.

Q: Does the RTB14012F require any circuit modifications?

A: No circuit modifications are required. The RTB14012F operates at the same coil voltage and produces equivalent switching action. The lower coil current (33.3mA versus 37.5mA) and higher coil resistance (360 Ohms versus 320 Ohms) are compatible with standard relay driver circuits.

Q: What is the difference in seal rating between these relays?

A: The OUDH-SS-112D,000 features sealed flux protection, which protects against flux residue contamination during manufacturing. The RTB14012F features fully sealed construction, which provides protection against environmental contaminants including moisture and dust. Fully sealed construction offers enhanced environmental protection for field applications.

Q: Are there any temperature range considerations for substitution?

A: The RTB14012F operates across a wider temperature range (-40°C to 85°C) compared to the OUDH-SS-112D,000 (-30°C to 60°C). This wider range provides greater flexibility for applications exposed to extreme environmental conditions.

Q: Is the RTB14012F suitable for new designs?

A: Yes. The RTB14012F is an active product with ROHS3 compliance, making it suitable for new designs and long-term production requirements.

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