PRDA-11AYB-24 Equivalent & Substitute Parts

Part Overview

The PRDA-11AYB-24 is a general purpose relay manufactured by TE Connectivity Potter & Brumfield Relays. This DPDT (2 Form C) relay is rated for 25A at 24VAC coil voltage with screw terminal connections and chassis mount configuration. The part is classified as obsolete, necessitating identification of active equivalent alternatives for continued system support and procurement.

Substiute Parts

PRDA-11AYB-24
TE Connectivity Potter & Brumfield RelaysIn Stock: 942PRDA-11AYB-24 Datasheet
PRDA-11AYB-24
Current Part
PRDA-11AYA-24
TE Connectivity Potter & Brumfield RelaysIn Stock: 1309PRDA-11AYA-24 Datasheet
PRDA-11AYA-24
Parametric Equivalent

Key Parameters

Parameter Value
Relay Type General Purpose
Contact Form DPDT (2 Form C)
Contact Rating (Current) 25 A
Coil Voltage 24VAC
Switching Voltage 600VAC, 125VDC - Max
Mounting Type Chassis Mount
Termination Style Screw Terminal
Operating Temperature Range -55°C ~ 45°C
Coil Type Non Latching

Substitute Part Grouping Explanation

Substitution of the PRDA-11AYB-24 is determined by equivalence across the following critical parameters:

  • Contact form configuration (DPDT / 2 Form C)
  • Current rating (25 A)
  • Coil voltage specification (24VAC)
  • Maximum switching voltage capability (600VAC, 125VDC)
  • Mounting type (Chassis Mount)
  • Termination method (Screw Terminal)
  • Operating temperature range (-55°C ~ 45°C)
  • Coil type (Non Latching)

The PRDA-11AYA-24 satisfies all substitution criteria as a parametric equivalent within the PRDA series, maintaining identical electrical and mechanical specifications while offering active product status.

Parameter Comparison

Parameter PRDA-11AYB-24 (Main Part) PRDA-11AYA-24 (Substitute)
Manufacturer TE Connectivity Potter & Brumfield Relays TE Connectivity Potter & Brumfield Relays
Series PRDA PRDA
Product Status Obsolete Active
Relay Type General Purpose General Purpose
Contact Form DPDT (2 Form C) DPDT (2 Form C)
Contact Rating (Current) 25 A 25 A
Coil Voltage 24VAC 24VAC
Switching Voltage 600VAC, 125VDC - Max 600VAC, 125VDC - Max
Coil Current 410 mA 410 mA
Coil Type Non Latching Non Latching
Mounting Type Chassis Mount Chassis Mount
Termination Style Screw Terminal Screw Terminal
Coil Insulation Class B Class B
Must Operate Voltage 20.4 VAC 20.4 VAC
Must Release Voltage 2.4 VAC 2.4 VAC
Operate Time 40 ms 40 ms
Release Time 20 ms 20 ms
Operating Temperature -55°C ~ 45°C -55°C ~ 45°C
Contact Material Silver (Ag) Silver (Ag)
Coil Resistance 12 Ohms 12 Ohms
Packaging Bulk Tray
RoHS Status RoHS3 Compliant RoHS non-compliant
REACH Status Vendor Undefined REACH Affected
ECCN EAR99 EAR99
HTSUS 8536.41.0050 8536.41.0050

Engineering Selection Recommendations

The PRDA-11AYA-24 is a direct parametric equivalent to the PRDA-11AYB-24 across all electrical and mechanical specifications. The primary distinction is product status: the PRDA-11AYB-24 is obsolete while the PRDA-11AYA-24 is active.

For applications requiring RoHS3 compliance, the PRDA-11AYB-24 meets this requirement while the PRDA-11AYA-24 does not. For applications subject to REACH regulations, the PRDA-11AYA-24 is designated as REACH Affected, whereas the PRDA-11AYB-24 has vendor-undefined REACH status.

Packaging differs between the two parts: the PRDA-11AYB-24 is supplied in bulk, while the PRDA-11AYA-24 is supplied in tray packaging. Both parts share identical ECCN (EAR99) and HTSUS (8536.41.0050) classifications.

Frequently Asked Questions (FAQ)

Q: Can the PRDA-11AYA-24 directly replace the PRDA-11AYB-24 in existing applications?

A: Yes. The PRDA-11AYA-24 is a parametric equivalent with identical electrical and mechanical specifications, including contact form, current rating, coil voltage, switching voltage, mounting type, termination style, and operating temperature range.

Q: What is the difference between these two part numbers?

A: The primary differences are product status (PRDA-11AYB-24 is obsolete; PRDA-11AYA-24 is active), packaging format (bulk versus tray), and regulatory compliance designations (RoHS and REACH status).

Q: Does packaging format affect electrical performance?

A: No. Packaging format (bulk or tray) does not affect electrical or mechanical performance. The selection between packaging formats is determined by procurement and inventory management requirements.

Q: Are there compliance considerations when substituting these parts?

A: Yes. If RoHS3 compliance is required, the PRDA-11AYB-24 meets this requirement while the PRDA-11AYA-24 does not. If REACH compliance is required, the PRDA-11AYA-24 is designated as REACH Affected. Compliance requirements must be evaluated against application specifications.

Q: What is the coil current draw for these relays?

A: Both relays draw 410 mA at 24VAC coil voltage with a coil resistance of 12 Ohms.

Q: What is the maximum switching voltage for these relays?

A: Both relays are rated for maximum switching voltage of 600VAC or 125VDC.

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