TE Connectivity Potter & Brumfield Relays 4-1393238-9 Equivalent & Substitute Parts

Part Overview

The TE Connectivity Potter & Brumfield Relays 4-1393238-9 is a general purpose relay with SPDT (Single Pole Double Throw) contact configuration rated for 12A at 12VDC coil voltage. This through-hole mounted relay operates in the RT1 and SCHRACK series and is designed for applications requiring reliable switching of AC and DC loads. The part maintains Active product status with 795 units in current inventory.

Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and continuity of supply across manufacturing environments where component availability or packaging requirements may vary.

Substiute Parts

4-1393238-9

TE Connectivity Potter & Brumfield RelaysIn Stock: 8144-1393238-9 Datasheet

Current PartRFQ

RZ01-1C4-D012

TE Connectivity Potter & Brumfield RelaysIn Stock: 4908RZ01-1C4-D012 Datasheet

Parametric EquivalentRFQ

ADJ16012

Panasonic Electric WorksIn Stock: 829ADJ16012 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 4-1393238-9 are classified into two categories based on parametric alignment with the main part specifications:

Parametric Equivalent Classification: Parts designated as parametric equivalents maintain identical or functionally equivalent electrical and mechanical characteristics across all critical parameters. These parts satisfy the same application requirements without design modification.

Similar Manufacturer Classification: Parts designated as similar maintain the core functional requirements (SPDT contact form, 12VDC coil voltage, through-hole mounting, non-latching coil type) but may exhibit variations in secondary parameters such as contact current rating, switching voltage maximum, coil current draw, operating temperature range, or contact material composition. These parts require engineering evaluation for specific application constraints.

Key Parameters Determining Substitution Eligibility:

• Contact Form: SPDT (1 Form C)
• Coil Voltage: 12VDC
• Mounting Type: Through Hole
• Termination Style: PC Pin
• Coil Type: Non Latching
• Product Status: Active

Parameter Comparison

Engineering Selection Recommendations

RZ01-1C4-D012 (Parametric Equivalent): The RZ01-1C4-D012 is a direct parametric equivalent to the 4-1393238-9. Both parts are manufactured by TE Connectivity Potter & Brumfield Relays and maintain identical electrical specifications across all critical parameters including contact rating, coil voltage, switching voltage, coil current, coil resistance, operating temperature range, and switching timing characteristics. Both parts are ROHS3 compliant and maintain Active product status. The RZ01-1C4-D012 is available in higher inventory quantity (4852 units) and is suitable for direct substitution without circuit modification. Both parts utilize identical termination style (PC Pin) and mounting configuration (through-hole).

ADJ16012 (Similar Manufacturer Part): The ADJ16012 manufactured by Panasonic Electric Works maintains the core functional requirements of SPDT contact form, 12VDC coil voltage, and through-hole mounting. This part differs in the following parameters: contact current rating (16A versus 12A), switching voltage maximum (250VAC versus 400VAC), coil current (20.8mA versus 33.3mA), coil resistance (576 Ohms versus 360 Ohms), operating temperature maximum (70°C versus 85°C), switching timing (20ms operate and release versus 8ms and 6ms), and contact material (Silver Tin Oxide versus Silver Nickel). The ADJ16012 is fully sealed and carries CQC, cURus, and VDE approvals. Selection of the ADJ16012 requires verification that application requirements accommodate the reduced maximum switching voltage, extended switching times, and lower maximum operating temperature. The higher contact current rating provides additional margin for current-limited applications.

All three parts maintain Active product status and are RoHS compliant, supporting long-term supply continuity.

Frequently Asked Questions (FAQ)

Q: Can the RZ01-1C4-D012 be used as a direct replacement for the 4-1393238-9?

A: Yes. The RZ01-1C4-D012 is a parametric equivalent with identical electrical and mechanical specifications. No circuit modification or design change is required. Both parts are manufactured by TE Connectivity Potter & Brumfield Relays and maintain the same contact form, coil voltage, current rating, switching voltage, timing characteristics, and operating temperature range.

Q: What are the key differences between the 4-1393238-9 and the ADJ16012?

A: The ADJ16012 differs in five critical parameters: (1) Contact current rating is 16A versus 12A, (2) Maximum switching voltage is 250VAC versus 400VAC, (3) Coil current is 20.8mA versus 33.3mA, (4) Operating temperature maximum is 70°C versus 85°C, and (5) Switching timing is 20ms operate/release versus 8ms/6ms. The ADJ16012 also uses Silver Tin Oxide contact material instead of Silver Nickel and is fully sealed.

Q: When should the ADJ16012 be selected over the 4-1393238-9?

A: The ADJ16012 is suitable when application requirements include: higher contact current capacity (16A), lower coil current draw (20.8mA), sealed relay construction, or when operating temperature does not exceed 70°C. The ADJ16012 is not suitable for applications requiring 400VAC switching voltage capability or operating temperatures above 70°C.

Q: Are there packaging differences between these parts?

A: Yes. The 4-1393238-9 and RZ01-1C4-D012 are supplied in tube packaging, while the ADJ16012 is supplied in box packaging. Packaging format may affect inventory management, handling procedures, and component placement in automated assembly processes.

Q: Do all three parts meet RoHS compliance requirements?

A: Yes. The 4-1393238-9 and RZ01-1C4-D012 are ROHS3 compliant. The ADJ16012 is RoHS compliant. All three parts satisfy RoHS requirements for lead-free and restricted substance compliance.

Q: What is the coil resistance difference between the main part and ADJ16012?

A: The 4-1393238-9 has a coil resistance of 360 Ohms, while the ADJ16012 has a coil resistance of 576 Ohms. This 60% increase in coil resistance results in the lower coil current draw (20.8mA versus 33.3mA) observed in the ADJ16012. Circuit designs relying on specific coil current characteristics must account for this difference.

Q: Which part has the fastest switching response?

A: The 4-1393238-9 and RZ01-1C4-D012 both have an 8ms operate time and 6ms release time. The ADJ16012 has a 20ms operate time and 20ms release time. Applications requiring fast switching response must use the 4-1393238-9 or RZ01-1C4-D012.

Q: Can the ADJ16012 be used in applications requiring 400VAC switching?

A: No. The ADJ16012 has a maximum switching voltage of 250VAC, while the 4-1393238-9 and RZ01-1C4-D012 are rated for 400VAC. The ADJ16012 is not suitable for applications requiring 400VAC switching capability.