AP5AB57 Equivalent & Substitute Parts

Part Overview

The AP5AB57 is a general purpose vacuum relay manufactured by TE Connectivity Aerospace, Defense and Marine. This SPST-NO (1 Form A) relay operates at 28VDC coil voltage with a 5A contact rating and 270VDC nominal switching voltage. The component features panel mount configuration with stud termination and sealed vacuum construction. The AP5AB57 is currently active in production status and maintains full RoHS3 compliance. Substitute parts are identified when equivalent electrical and mechanical parameters are required for applications where the primary part number is unavailable or when alternative sourcing is necessary.

Substiute Parts

AP5AB57

TE Connectivity Aerospace, Defense and MarineIn Stock: 1107AP5AB57 Datasheet

Current PartRFQ

2-1618007-7

TE Connectivity Aerospace, Defense and MarineIn Stock: 8202-1618007-7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The AP5AB57 has one identified parametric equivalent: 2-1618007-7 (AP50XB57). This substitute relationship is established based on matching all critical electrical and mechanical parameters that define functional interchangeability within the vacuum relay category.

The following parameters are identical between the main part and substitute:

• Coil Voltage: 28VDC
• Contact Form: SPST-NO (1 Form A)
• Contact Rating (Current): 5 A
• Switching Voltage: 270VDC - Nom
• Coil Current: 96.6 mA
• Coil Type: Non Latching
• Mounting Type: Panel Mount
• Termination Style: Stud
• Seal Rating: Sealed - Vacuum
• Must Operate Voltage: 20 VDC
• Must Release Voltage: 0.7 VDC
• Operate Time: 7 ms
• Release Time: 10 ms
• Operating Temperature Range: -55°C ~ 85°C
• Coil Resistance: 290 Ohms
• Relay Type: General Purpose
• Series: AP5, KILOVAC
• Manufacturer: TE Connectivity Aerospace, Defense and Marine

Parameter Comparison

Engineering Selection Recommendations

The AP5AB57 and 2-1618007-7 (AP50XB57) are electrically and mechanically equivalent vacuum relays suitable for direct substitution based on parametric matching. Both components are active products from TE Connectivity Aerospace, Defense and Marine within the AP5 KILOVAC series.

The primary distinction between these parts is regulatory compliance status. The AP5AB57 carries RoHS3 compliance certification, while the 2-1618007-7 is RoHS non-compliant. Component selection should be based on the regulatory requirements of the end application and target market. Applications subject to RoHS3 requirements must use the AP5AB57. Applications without RoHS3 mandates may use either part based on availability and sourcing considerations.

Both parts maintain REACH Unaffected status and carry identical ECCN (EAR99) and HTSUS (8536.49.0050) classifications, indicating equivalent export control and tariff treatment.

Frequently Asked Questions (FAQ)

Q: Can the 2-1618007-7 be used as a direct replacement for the AP5AB57?

A: Yes, from an electrical and mechanical standpoint. Both relays share identical coil voltage (28VDC), contact form (SPST-NO), current rating (5A), switching voltage (270VDC), timing characteristics (7ms operate, 10ms release), and operating temperature range (-55°C to 85°C). The primary consideration is regulatory compliance: the AP5AB57 is RoHS3 compliant while the 2-1618007-7 is not.

Q: What are the key parameters that determine substitutability for this relay?

A: Substitutability is determined by matching: coil voltage, contact form, contact current rating, switching voltage, coil current, mounting configuration, termination style, seal rating, operating temperature range, and timing specifications (operate and release times). All these parameters are identical between the AP5AB57 and 2-1618007-7.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance relates to material composition and environmental regulations, not electrical performance. Both parts deliver identical electrical characteristics and switching performance.

Q: Are both parts available in the same packaging?

A: Both parts are supplied in Bulk packaging. Current inventory shows 1007 pieces of AP5AB57 and 715 pieces of 2-1618007-7 available as new original stock.

Q: What is the coil resistance and what does it mean for circuit design?

A: Both relays have a coil resistance of 290 Ohms. This value determines the coil current draw at the specified 28VDC coil voltage (96.6 mA) and is critical for power supply sizing and control circuit design.

Q: Can these relays be used interchangeably in aerospace applications?

A: Both parts are manufactured by TE Connectivity Aerospace, Defense and Marine and carry identical ECCN (EAR99) classification. However, specific aerospace qualification requirements and program-level approvals must be verified independently, as these are not specified in the parametric data.