ALE12B09 General Purpose Relay SPST 16A 9VDC - Equivalent & Substitute Parts

Part Overview

The ALE12B09 is a general purpose relay manufactured by Panasonic Electric Works, featuring a SPST-NO (1 Form A) contact configuration with a 9VDC coil. This through-hole mounted relay is rated for 16A at 277VAC maximum switching voltage and is designed for non-latching applications. The part is currently obsolete, making identification of equivalent substitute components essential for system maintenance, repair, and redesign applications where this relay is specified in existing designs.

Substiute Parts

ALE12B09

Panasonic Electric WorksIn Stock: 825ALE12B09 Datasheet

Current PartRFQ

RZF1-1A4-L009

TE Connectivity Potter & Brumfield RelaysIn Stock: 1162RZF1-1A4-L009 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ALE12B09 is determined by strict equivalence across the following critical parameters:

• Coil Voltage: 9VDC (exact match required)
• Contact Configuration: SPST-NO (1 Form A) (exact match required)
• Contact Current Rating: 16A minimum (equal or higher acceptable)
• Mounting Type: Through Hole (exact match required)
• Termination Style: PC Pin, Quick Connect - 0.187" (4.7mm) (exact match required)
• Coil Type: Non Latching (exact match required)
• Operating Temperature Range: -40°C ~ 85°C minimum (equal or wider acceptable)

The substitute part RZF1-1A4-L009 manufactured by TE Connectivity Potter & Brumfield Relays meets all critical substitution criteria. Both parts share identical coil voltage, contact form, current rating, mounting configuration, and termination style, enabling direct functional replacement in applications where the ALE12B09 is specified.

Parameter Comparison

Engineering Selection Recommendations

The RZF1-1A4-L009 is a direct functional substitute for the ALE12B09 based on matching coil voltage, contact configuration, current rating, mounting type, and termination style. Both parts are RoHS compliant and rated for the same operating temperature range.

The substitute part demonstrates improved electrical performance characteristics: faster operate and release times (8 ms and 6 ms respectively versus 20 ms each), higher maximum switching voltage rating (400VAC versus 277VAC), and lower must-operate voltage requirement (6.3 VDC versus 6.75 VDC). These performance enhancements make the RZF1-1A4-L009 suitable for applications where the original ALE12B09 is no longer available.

Circuit design considerations include the higher coil current draw of the substitute (58.9 mA versus 44.4 mA) and the different contact material composition (Silver Nickel versus Silver Tin Oxide). These differences require verification that the driving circuit can supply the increased coil current and that the contact material change is compatible with the load characteristics of the application.

Frequently Asked Questions (FAQ)

Q: Can the RZF1-1A4-L009 be used as a direct replacement for the ALE12B09 without circuit modifications?

A: The RZF1-1A4-L009 meets all critical functional requirements for direct substitution: identical 9VDC coil voltage, SPST-NO contact form, 16A current rating, through-hole mounting, and 0.187" quick-connect termination. However, the substitute draws higher coil current (58.9 mA versus 44.4 mA), requiring verification that the driving circuit can supply this increased current. The faster switching times and different contact material should be evaluated for compatibility with specific load conditions.

Q: What are the key differences between these two relays?

A: The primary differences are coil current draw, switching speed, maximum switching voltage rating, and contact material. The RZF1-1A4-L009 operates faster (8 ms operate, 6 ms release versus 20 ms each), has a higher maximum switching voltage (400VAC versus 277VAC), and uses Silver Nickel contacts instead of Silver Tin Oxide. The substitute also has lower must-operate voltage (6.3 VDC versus 6.75 VDC) and lower coil resistance (153 Ohms versus 203 Ohms).

Q: Are both parts available in the same packaging?

A: The ALE12B09 is supplied in bulk packaging, while the RZF1-1A4-L009 is supplied in tube packaging. Both are through-hole mounted components with identical termination styles, ensuring mechanical compatibility in PCB applications.

Q: What compliance certifications apply to these relays?

A: The ALE12B09 carries CSA, TUV, UR, and VDE approvals. Both parts are RoHS compliant with Moisture Sensitivity Level 1 (unlimited shelf life). Both are classified under ECCN EAR99 and HTSUS 8536.41.0050.

Q: How do the operating voltage requirements differ?

A: The ALE12B09 requires 6.75 VDC minimum to operate and 0.45 VDC maximum to release. The RZF1-1A4-L009 requires 6.3 VDC minimum to operate and 0.9 VDC maximum to release. The substitute operates at a lower threshold voltage but requires higher voltage to release, which may affect circuit timing in applications with marginal supply voltage conditions.