VF4-15F11 Equivalent & Substitute Parts

Part Overview

The VF4-15F11 is a general purpose relay manufactured by TE Connectivity Potter & Brumfield Relays. This SPDT (Single Pole Double Throw) relay features a 12VDC coil, 40A contact rating, and socketable mounting with quick-connect termination. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations.

Substiute Parts

VF4-15F11

TE Connectivity Potter & Brumfield RelaysIn Stock: 943VF4-15F11 Datasheet

Current PartRFQ

1-1414686-0

TE Connectivity Potter & Brumfield RelaysIn Stock: 14131-1414686-0 Datasheet

DirectRFQ

1432785-1

TE Connectivity Potter & Brumfield RelaysIn Stock: 69341432785-1 Datasheet

SimilarRFQ

CB1-T-12V

Panasonic Electric WorksIn Stock: 1987CB1-T-12V Datasheet

DirectRFQ

CB1F-T-12V

Panasonic Electric WorksIn Stock: 1100CB1F-T-12V Datasheet

DirectRFQ

CB1-12V

Panasonic Electric WorksIn Stock: 2758CB1-12V Datasheet

SimilarRFQ

CB1F-12V

Panasonic Electric WorksIn Stock: 1817CB1F-12V Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the VF4-15F11 are grouped based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

• Contact Form: SPDT (1 Form C)
• Coil Voltage: 12VDC
• Contact Rating (Current): 40 A or higher
• Mounting Type: Socketable
• Termination Style: Plug In, Quick Connect - 0.250" (6.3mm)
• Operating Temperature Range: Minimum -40°C ~ 125°C or compatible subset

Secondary Compatibility Parameters:

• Coil Type: Non Latching
• Switching Voltage: 14VDC - Nom
• Must Operate Voltage: 7.0 VDC to 7.8 VDC
• Must Release Voltage: 1.2 VDC

Parts are classified as direct substitutes when all critical parameters match. Parts with variations in secondary parameters (such as coil current, operate/release times, or contact material) are listed as similar substitutes with specific parameter deviations noted.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitute (Preferred):

The part 1-1414686-0 (TE Connectivity Potter & Brumfield Relays, SRF-A series) is the primary direct substitute for VF4-15F11. This part maintains identical electrical specifications including 40A contact rating, 12VDC coil voltage, 7.2 VDC must-operate voltage, and 90 Ohms coil resistance. The 1-1414686-0 is currently in active product status with ROHS3 compliance, providing long-term availability and regulatory alignment. Coil current, operate time, and release time are identical to the original part.

Alternative Substitutes with Parameter Variations:

The Panasonic Electric Works CB series relays (CB1-T-12V, CB1F-T-12V, CB1-12V, CB1F-12V) provide functional equivalence with the following considerations:

• CB1-T-12V and CB1F-T-12V maintain the full -40°C ~ 125°C operating temperature range of the original part and are currently active products with ROHS3 compliance. These parts feature lower coil current (117 mA versus 133 mA) and extended operate/release times (15 ms each versus 7 ms/2 ms). The must-operate voltage is 7.0 VDC, which is lower than the original 7.2 VDC specification.

• CB1-12V and CB1F-12V operate within a reduced temperature range (-40°C ~ 85°C) compared to the original specification (-40°C ~ 125°C). These parts are active products with ROHS3 compliance and identical electrical characteristics to CB1-T-12V and CB1F-T-12V except for the temperature limitation.

The CB series relays feature sealed construction (fully sealed or flux-protected variants) and cadmium-free silver alloy contacts, providing enhanced environmental protection compared to the silver nickel contacts of the original part.

Not Recommended:

The part 1432785-1 (TE Connectivity Potter & Brumfield Relays, VF4 series) has a reduced contact rating of 30A, which does not meet the 40A requirement of the original specification. This part is also classified as obsolete.

Frequently Asked Questions (FAQ)

Q: Can the 1-1414686-0 be used as a direct replacement for VF4-15F11 without circuit modifications?

A: Yes. The 1-1414686-0 maintains all critical electrical parameters including 40A contact rating, 12VDC coil voltage, 7.2 VDC must-operate voltage, 1.2 VDC must-release voltage, 90 Ohms coil resistance, and identical operate/release times. The socketable mounting and 0.250" (6.3mm) quick-connect termination are identical. No circuit modifications are required.

Q: What are the key differences between the TE Connectivity 1-1414686-0 and the Panasonic CB series substitutes?

A: The primary differences are: (1) Coil current is 133 mA for 1-1414686-0 versus 117 mA for CB series; (2) Operate and release times are 7 ms and 2 ms for 1-1414686-0 versus 15 ms each for CB series; (3) Must-operate voltage is 7.2 VDC for 1-1414686-0 versus 7.0 VDC for CB series; (4) Contact material differs (Silver Nickel versus Silver Alloy, Cadmium Free); (5) CB series relays feature sealed construction. All parts maintain 40A contact rating, 12VDC coil voltage, and socketable mounting.

Q: Are the CB1-12V and CB1F-12V suitable for applications requiring the full -40°C ~ 125°C temperature range?

A: No. CB1-12V and CB1F-12V are rated for -40°C ~ 85°C operation only. For applications requiring the full -40°C ~ 125°C range, use CB1-T-12V or CB1F-T-12V instead.

Q: What is the difference between CB1F-12V and CB1-12V?

A: Both parts have identical electrical specifications and temperature range (-40°C ~ 85°C). The difference is in sealing: CB1F-12V features flux protection sealing, while CB1-12V features full sealing. Selection depends on manufacturing environment and soldering process requirements.

Q: Why does the 1432785-1 appear in the substitute list if it has a lower current rating?

A: The 1432785-1 is listed as a similar substitute but is not recommended for direct replacement due to its 30A contact rating, which is insufficient for applications requiring the 40A capability of VF4-15F11. This part is provided for reference only and should not be selected for new designs or replacements requiring 40A switching capacity.

Q: Are all substitute parts RoHS compliant?

A: The original VF4-15F11 is RoHS non-compliant. All substitute parts listed (1-1414686-0, CB1-T-12V, CB1F-T-12V, CB1-12V, CB1F-12V) are RoHS3 compliant or RoHS compliant, providing regulatory alignment for new designs and updated systems.

Q: Can the Panasonic CB series relays be used in high-speed switching applications?

A: The CB series relays have operate and release times of 15 ms each, compared to 7 ms and 2 ms for the original VF4-15F11 and the 1-1414686-0 substitute. Applications requiring faster switching response should use 1-1414686-0. Applications tolerant of 15 ms switching delays can use CB series relays.

Q: What is the inventory status of substitute parts?

A: 1-1414686-0 has 1323 pieces in stock; CB1-T-12V has 1968 pieces; CB1F-T-12V has 1089 pieces; CB1-12V has 2700 pieces; CB1F-12V has 1749 pieces. The original VF4-15F11 has 840 pieces in stock but is obsolete.