PT52B024B General Purpose Relay 4PDT 24VDC Equivalent & Substitute Parts

Part Overview

The PT52B024B is a general purpose relay manufactured by TE Connectivity Potter & Brumfield Relays, featuring a 4PDT (4 Form C) contact configuration with a 24VDC coil and 6A contact rating. This through-hole mounted relay is designed for general switching applications requiring multiple independent circuits.

The PT52B024B carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to maintain system functionality, ensure continued availability for repair and maintenance applications, and support ongoing production requirements where this relay specification remains applicable.

Substiute Parts

PT52B024B

TE Connectivity Potter & Brumfield RelaysIn Stock: 965PT52B024B Datasheet

Current PartRFQ

KHAE-17D12-24

TE Connectivity Potter & Brumfield RelaysIn Stock: 1806KHAE-17D12-24 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PT52B024B is determined by the following critical parameters:

Primary Compatibility Criteria:

• Coil voltage must be 24VDC
• Contact form must be 4PDT (4 Form C)
• Mounting type must be Through Hole
• Termination style must be PC Pin
• Coil type must be Non Latching
• Operating temperature range must encompass -45°C ~ 70°C

Secondary Compatibility Criteria:

• Contact rating (current) must meet or exceed application requirements
• Switching voltage must meet or exceed application requirements
• Must operate voltage must not exceed 18 VDC
• Relay type must be General Purpose

The KHAE-17D12-24 satisfies all primary compatibility criteria and maintains functional equivalence within the specified parameter constraints.

Parameter Comparison

Engineering Selection Recommendations

The KHAE-17D12-24 is an active product substitute for the obsolete PT52B024B. Both relays are manufactured by TE Connectivity Potter & Brumfield Relays and share identical coil voltage, contact form, mounting configuration, and operating temperature specifications.

The KHAE-17D12-24 demonstrates improved operational characteristics with faster operate and release times (13 ms and 6 ms respectively, compared to 20 ms for both parameters on the PT52B024B). The contact rating of 5A on the KHAE-17D12-24 is lower than the 6A rating of the PT52B024B; applications requiring the full 6A contact rating must evaluate whether the 5A specification of the substitute part meets circuit requirements.

The KHAE-17D12-24 carries RoHS3 compliance certification, supporting modern regulatory requirements. The PT52B024B carries REACH Unaffected status. Both parts are classified under ECCN EAR99 and HTSUS 8536.41.0020.

Frequently Asked Questions (FAQ)

Q: Can the KHAE-17D12-24 directly replace the PT52B024B in existing applications?

A: The KHAE-17D12-24 is mechanically and electrically compatible with the PT52B024B for applications requiring 24VDC coil voltage, 4PDT contact configuration, and through-hole mounting. The primary consideration is the contact rating: the KHAE-17D12-24 is rated for 5A maximum, while the PT52B024B is rated for 6A. Applications operating at or near 6A contact current must evaluate whether the 5A specification is acceptable for the intended circuit.

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

A: Both relays share identical coil voltage (24VDC), contact form (4PDT), mounting type (through-hole), and operating temperature range (-45°C ~ 70°C). The KHAE-17D12-24 features faster switching times (13 ms operate, 6 ms release versus 20 ms for both on the PT52B024B), a lower contact rating (5A versus 6A), and higher coil current (37.5 mA versus 30.8 mA). Contact material differs: the PT52B024B uses Silver Nickel while the KHAE-17D12-24 uses Silver Cadmium Oxide.

Q: Are there packaging differences between these parts?

A: The PT52B024B is packaged in standard format, while the KHAE-17D12-24 is supplied in Bulk packaging. Both utilize PC Pin termination for through-hole mounting on printed circuit boards.

Q: What is the coil current difference and does it affect circuit design?

A: The KHAE-17D12-24 requires 37.5 mA coil current compared to 30.8 mA for the PT52B024B. This 7.5 mA increase must be accommodated by the coil drive circuit. The coil resistance differs (690 Ohms versus 777 Ohms), resulting in the higher current draw at the same 24VDC coil voltage. Existing drive circuits must be evaluated to confirm adequate current capacity.

Q: What compliance certifications apply to each part?

A: The KHAE-17D12-24 carries RoHS3 compliance certification and is classified as REACH Vendor Undefined. The PT52B024B carries REACH Unaffected status. Both parts are classified under ECCN EAR99 and HTSUS 8536.41.0020. Applications subject to RoHS requirements should specify the KHAE-17D12-24.

Q: How do the switching voltage ratings compare?

A: The PT52B024B is rated for 250VAC maximum switching voltage, while the KHAE-17D12-24 is rated for 240VAC maximum. Applications operating at or near 250VAC must confirm that the 240VAC specification of the KHAE-17D12-24 is acceptable.