Equivalent & Substitute Parts for 1156-10PK Incandescent Lamp

Part Overview

The 1156-10PK is an incandescent lamp manufactured by Visual Communications Company (VCC), designed for 12.8V applications with RS-8 lens geometry and bayonet single-contact base configuration. This part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives that maintain the same electrical and mechanical specifications. The lamp delivers 32 MSCP (Mean Spherical Candle Power) output with clear lens characteristics suitable for indicator and signal applications.

Substiute Parts

1156-10PK

Visual Communications Company - VCCIn Stock: 9541156-10PK Datasheet

Current PartRFQ

1156

CEC IndustriesIn Stock: 9491156 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1156-10PK is determined by strict equivalence across the following critical parameters:

• Voltage Rating: Must be 12.8V to ensure proper filament operation and prevent premature failure or insufficient illumination
• MSCP Output: Must be 32 to maintain consistent luminous intensity in the application circuit
• Lead Style: Must be Bayonet - Single Contact (BA15S) to ensure mechanical and electrical compatibility with the socket
• Lens Size: Must be S-8 or RS-8 to fit the optical housing and maintain beam characteristics
• Color: Must be Clear to preserve spectral output and visibility characteristics
• Type: Must be Incandescent to maintain thermal and electrical operating parameters

The substitute part CEC Industries 1156 meets all critical substitution criteria and is currently active in inventory.

Parameter Comparison

Engineering Selection Recommendations

The CEC Industries 1156 lamp is a direct functional equivalent to the 1156-10PK. Selection criteria are based on the following factors:

Electrical Compatibility: Both lamps operate at 12.8V with identical 32 MSCP output, ensuring equivalent performance in circuit applications without modification to power supply or control circuitry.

Mechanical Compatibility: Both lamps utilize bayonet single-contact base configuration (BA15S), providing direct socket compatibility without adapter requirements.

Regulatory Compliance: The CEC Industries 1156 maintains RoHS compliance and REACH unaffected status, meeting the same environmental and regulatory requirements as the original part.

Product Status: The CEC Industries 1156 is currently active with 919 pieces in stock, providing reliable supply continuity for the discontinued 1156-10PK.

Lens Geometry: The S-8 lens designation of the CEC Industries lamp is mechanically and optically compatible with RS-8 applications, as both designations refer to the same 8mm round domed lens form factor used in standard bayonet lamp applications.

Frequently Asked Questions (FAQ)

Q: Can the CEC Industries 1156 be used as a direct replacement for the VCC 1156-10PK?

A: Yes. Both lamps share identical voltage rating (12.8V), luminous intensity (32 MSCP), base type (BA15S bayonet single-contact), and color (clear). The S-8 and RS-8 designations both refer to the same 8mm round domed lens geometry used in standard bayonet lamp sockets.

Q: What is the difference between RS-8 and S-8 lens designations?

A: RS-8 and S-8 both designate an 8mm round lens with domed top geometry. These designations are functionally equivalent for bayonet lamp applications and are mechanically interchangeable in standard lamp sockets.

Q: Are there any compliance differences between the two lamps?

A: Both lamps are RoHS compliant and REACH unaffected. The VCC 1156-10PK carries ROHS3 designation, while the CEC Industries 1156 carries standard RoHS compliance. Both meet current environmental and regulatory requirements for electronic components.

Q: What is the packaging difference between these parts?

A: The VCC 1156-10PK is supplied as a 10-pack unit. The CEC Industries 1156 is supplied as a box of 10 units. Both provide the same quantity per package.

Q: Can I mix these lamps in the same application?

A: Yes. Since both lamps have identical electrical specifications (12.8V, 32 MSCP) and mechanical compatibility (BA15S base), they can be used interchangeably in the same circuit or fixture without performance degradation.

Q: Is the CEC Industries 1156 currently available?

A: Yes. The CEC Industries 1156 is active with 919 pieces in stock, providing immediate availability for replacement applications.