TSC-109L3H,000 Equivalent & Substitute Parts

Part Overview

The TSC-109L3H,000 is a telecom relay manufactured by TE Connectivity Potter & Brumfield Relays. This through-hole mounted SPDT (Single Pole Double Throw) relay operates at 9VDC with a 1A contact rating and is designed for telecom switching applications. The part is currently Active in product status with 711 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required for applications where the primary part is unavailable, discontinued, or when design flexibility permits alternative sourcing.

Substiute Parts

TSC-109L3H,000

TE Connectivity Potter & Brumfield RelaysIn Stock: 736TSC-109L3H,000 Datasheet

Current PartRFQ

HY1-9V

Panasonic Electric WorksIn Stock: 1397HY1-9V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TSC-109L3H,000 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Coil voltage: 9VDC (exact match required)
• Contact form: SPDT (1 Form C) configuration
• Contact rating: 1 A minimum
• Coil current: 16.7 mA
• Coil resistance: 540 Ohms
• Coil type: Non Latching
• Must operate voltage: 6.75 VDC or lower
• Operate and release times: 5 ms or faster

Mechanical Parameters:

• Mounting type: Through Hole
• Termination style: PC Pin
• Seal rating: Sealed - Fully

Compliance Parameters:

• RoHS3 Compliant status
• MSL rating: 1 (Unlimited)

The HY1-9V from Panasonic Electric Works meets all critical electrical and mechanical substitution criteria. Differences in switching voltage maximum, must release voltage, release time, operating temperature range, and contact material do not prevent substitution when the application requirements fall within the HY1-9V specifications.

Parameter Comparison

Engineering Selection Recommendations

TSC-109L3H,000 (Primary Selection): The TSC-109L3H,000 is the recommended primary choice for new designs and applications. This part maintains Active product status, ensuring long-term availability and supply chain stability. It is ROHS3 Compliant and carries full compliance certification. The part offers the highest switching voltage capability (120VAC, 30VDC maximum) and the lowest must release voltage (0.45 VDC), providing superior performance margins in high-voltage switching applications. With 711 units in stock, immediate availability is assured.

HY1-9V (Substitute Selection): The HY1-9V from Panasonic Electric Works is a qualified substitute when the TSC-109L3H,000 is unavailable. This part meets all critical electrical and mechanical parameters for SPDT telecom relay functionality at 9VDC. However, the HY1-9V carries a "Not For New Designs" product status designation, limiting its use to legacy system maintenance, repair, or applications where design flexibility permits alternative sourcing. The HY1-9V is ROHS3 Compliant and carries REACH Unaffected certification. The reduced switching voltage maximum (60VDC) and higher must release voltage (0.9 VDC) require verification that application requirements fall within these specifications. The operating temperature range (-40°C ~ 70°C) is narrower than the primary part. Inventory availability is higher at 1361 units, and packaging is supplied in tube format rather than bulk.

Frequently Asked Questions (FAQ)

Q: Can the HY1-9V directly replace the TSC-109L3H,000 in all applications?

A: The HY1-9V is electrically and mechanically compatible for SPDT telecom relay applications at 9VDC. However, applications requiring switching voltages above 60VDC or operating temperatures above 70°C must use the TSC-109L3H,000. The HY1-9V's higher must release voltage (0.9 VDC versus 0.45 VDC) may affect performance in circuits with marginal release voltage margins.

Q: What is the difference in packaging between these parts?

A: The TSC-109L3H,000 is supplied in Bulk packaging, while the HY1-9V is supplied in Tube packaging. Both parts use identical PC Pin termination for through-hole mounting on printed circuit boards.

Q: Why is the HY1-9V marked "Not For New Designs"?

A: The "Not For New Designs" status indicates that Panasonic Electric Works has designated this part for legacy applications only. New product designs should specify the TSC-109L3H,000 to ensure long-term supply chain continuity and manufacturer support.

Q: Are both parts RoHS compliant?

A: Yes, both the TSC-109L3H,000 and HY1-9V are ROHS3 Compliant, meeting environmental and hazardous substance restrictions for electronic components.

Q: What is the significance of the different contact materials?

A: The TSC-109L3H,000 uses Silver Nickel (AgNi) contacts, while the HY1-9V uses Silver (Ag) and Gold (Au) contacts. Both materials are suitable for telecom relay applications. The gold plating in the HY1-9V provides enhanced corrosion resistance, while the silver nickel in the TSC-109L3H,000 offers cost efficiency. Contact material selection does not prevent substitution when application requirements are met.

Q: Can I use the HY1-9V in applications requiring the full -30°C to 80°C temperature range?

A: No. The HY1-9V operating temperature range is -40°C to 70°C. Applications requiring operation above 70°C must use the TSC-109L3H,000.

Q: What is the coil resistance and why is it important?

A: Both parts have 540 Ohms coil resistance. This specification determines the coil current draw (16.7 mA at 9VDC) and is critical for circuit design calculations, power supply sizing, and driver circuit selection.