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TE Connectivity AMP Connectors 1612121-1 — Connector Housings

TE Connectivity 1612121-1 SQUIB 2POS Plug Housing

MPN1612121-1
Active

TE Connectivity SQUIB series, 2-position plug housing, 0.122" (3.10mm) pitch, 1 row, free hanging (in-line) mount, crimp termination, lever lock fastening, black PBT housing, with Terminal Position Lock (TPA).

$0.3800Ref. price · indicative, final on quote
RoHSRoHS Compliant
SeriesSQUIB
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for stock & sourcing questions
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent supplier — new & surplus connector stock· Listing updated Aug 2026

Specifications

1612121-1 specifications
ParameterValue
SeriesSQUIB
TypeFemale Socket
MountingFree Hanging (In-Line)
Connector typePlug
Fastening typeLever Lock
Operating temperature-30°C ~ 80°C
ColorBlack
Insulation materialPolybutylene Terephthalate (PBT)
Pitch0.122\" (3.10mm)
PackageBag
FeaturesTerminal Position Lock (TPA)
Rows1
Contact terminationCrimp
Positions2

Product details

What This SQUIB Plug Housing Is

It's a key component in a SQUIB (Squib) circuit, typically used in automotive airbag and safety restraint systems where a reliable, one-time deployment connection is critical.

The 2-position count is the first check against your BOM line. With a pitch of 0.122" (3.10mm), this housing is wider than typical signal connectors, a deliberate choice for the current and voltage demands of a SQUIB firing circuit.

Key Features: TPA and Lever Lock

Two features set this housing apart for safety-critical use. The Terminal Position Lock (TPA) is a secondary lock that slides over the loaded terminals, confirming each crimped contact is fully seated and preventing it from backing out under vibration. The lever lock provides a positive, audible snap when mated with the corresponding header, giving a clear tactile confirmation that the connection is secure. In a SQUIB circuit, a partially mated connector is a failure mode you don't want.

Operating Environment and Temperature Range

The PBT insulation material handles the typical under-dash and interior environment well, including exposure to humidity and common automotive chemicals.

Frequently asked questions

Where can I buy the 1612121-1 and how do I get a price?

It is not a stocked shelf item, so lead time is determined per order.

What is the purpose of the Terminal Position Lock (TPA) on the 1612121-1?

The TPA is a secondary locking feature that slides over the loaded crimp terminals after they are inserted into the housing. It physically blocks the terminal retention lances from deflecting, ensuring each contact is fully seated and cannot back out due to vibration or wire pull. This is critical for maintaining circuit integrity in a safety-restraint application.