EC2-9TNU General Purpose DPDT Relay Equivalent & Substitute Parts

Part Overview

The EC2-9TNU is a general purpose dual pole double throw (DPDT) relay manufactured by KEMET, designed for through-hole mounting applications. This relay operates at 9VDC with a 2A contact rating and supports switching voltages up to 250VAC or 220VDC maximum. The EC2-9TNU features a latching dual coil design with PC pin termination and is constructed with silver alloy and gold alloy contact materials.

The EC2-9TNU is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or maintenance requirements for systems utilizing this relay specification.

Substiute Parts

EC2-9TNU

KEMETIn Stock: 927EC2-9TNU Datasheet

Current PartRFQ

V23079B1206B301

TE Connectivity Potter & Brumfield RelaysIn Stock: 2497V23079B1206B301 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EC2-9TNU is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Coil voltage: 9VDC
• Contact form: DPDT (2 Form C)
• Contact rating: 2 A minimum
• Switching voltage capability: 250VAC, 220VDC maximum
• Coil type: Latching, dual coil configuration
• Coil resistance: within acceptable tolerance range (579 Ohms reference)
• Must operate voltage: 6.75 VDC

Mechanical Equivalence Requirements:

• Mounting type: Through hole
• Termination style: PC pin
• Operating temperature range: -40°C ~ 85°C minimum

The V23079B1206B301 manufactured by TE Connectivity Potter & Brumfield Relays meets all critical electrical and mechanical parameters required for direct substitution. This part maintains identical coil voltage, contact configuration, current rating, switching voltage limits, coil type, and operating temperature range. The substitute part is classified as active product status with RoHS compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The V23079B1206B301 is a direct electrical and mechanical substitute for the EC2-9TNU. Both parts share identical coil voltage, contact configuration, current rating, switching voltage limits, and operating temperature specifications. The substitute part is manufactured by TE Connectivity Potter & Brumfield Relays, a recognized supplier of industrial relay components.

The V23079B1206B301 carries active product status and holds RoHS compliance certification, ensuring long-term availability and regulatory compliance for new designs or production continuations. The EC2-9TNU is obsolete, making the V23079B1206B301 the appropriate selection for component replacement or design updates.

Timing characteristics differ between the two parts: the EC2-9TNU operates in 2 ms with 1 ms release time, while the V23079B1206B301 operates in 4 ms with 4 ms release time. Applications requiring the faster switching response of the original EC2-9TNU must evaluate whether the extended timing of the substitute part is acceptable within the system design constraints.

Frequently Asked Questions (FAQ)

Q: Can the V23079B1206B301 replace the EC2-9TNU in existing applications?

A: Yes. The V23079B1206B301 meets all critical electrical and mechanical parameters: 9VDC coil voltage, DPDT contact form, 2A current rating, 250VAC/220VDC switching voltage, latching dual coil configuration, through-hole mounting, and PC pin termination. Both parts operate across -40°C to 85°C. The substitute part is electrically and mechanically compatible for direct substitution.

Q: What are the differences between these two relays?

A: The primary differences are product status and timing characteristics. The EC2-9TNU is obsolete; the V23079B1206B301 is active. The EC2-9TNU operates in 2 ms with 1 ms release time; the V23079B1206B301 operates in 4 ms with 4 ms release time. Contact materials differ slightly: EC2-9TNU uses silver alloy and gold alloy; V23079B1206B301 uses silver nickel and gold. Coil resistance is nearly identical (579 Ohms vs. 578 Ohms).

Q: Are there packaging differences between these parts?

A: Yes. The EC2-9TNU is supplied in standard packaging; the V23079B1206B301 is supplied in tube packaging. Both are through-hole mounted components with PC pin termination, so packaging format does not affect circuit board compatibility.

Q: Does the timing difference affect substitution suitability?

A: The V23079B1206B301 has slower switching times (4 ms operate and release versus 2 ms and 1 ms). Applications requiring the faster response of the original EC2-9TNU must evaluate system timing requirements. If the application can tolerate the extended switching times of the substitute part, substitution is suitable.

Q: Are both parts RoHS compliant?

A: Yes. The EC2-9TNU is ROHS3 compliant. The V23079B1206B301 is RoHS compliant. Both parts meet regulatory requirements for hazardous substance restrictions.

Q: What is the coil resistance tolerance between these parts?

A: The EC2-9TNU has 579 Ohms coil resistance; the V23079B1206B301 has 578 Ohms. This 1 Ohm difference is within acceptable tolerance for relay substitution and does not affect circuit operation.