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Littelfuse Inc. 1N6267AG — Circuit Protection

Littelfuse 1N6267AG Zener TVS, 1500W Peak Pulse

MPN1N6267AG
Obsolete

Littelfuse 1N6267AG Mosorb Zener TVS, 1500W peak pulse, 5.8V standoff, 6.45V breakdown, 10.5V clamping, DO-201AD axial, through-hole, -65°C~175°C.

$0.5400Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Sep 2026

Specifications

1N6267AG specifications
ParameterValue
TypeZener
SeriesMosorb™
MountingThrough Hole
Voltage - breakdown6.45V
Voltage - clamping (Max) @ ipp10.5V
Voltage - reverse standoff5.8V
Power - peak pulse1500W (1.5kW)
Power line protectionNo
Operating temperature-65°C~175°C(TJ)
PackageBulk
ApplicationsGeneral Purpose
CaseDO-201AD, Axial
Unidirectional channels1

Product details

Peak pulse power and clamping performance

The 1N6267AG: The 1500 W peak pulse rating (1.5 kW) defines the device's energy absorption ceiling under transient surge conditions — the Mosorb series is specifically characterised for unclamped inductive switching and lightning-surge immunity per recognised test waveforms. These three voltages — standoff, breakdown, clamping — form the complete clamping chain for the protected node.

The DO-201AD axial body is a through-hole package — the lead diameter and body length place it in the mid-range TVS form factor and the lead wire carries the thermal path to the board pad. On a protected rail the cathode connects to the node under protection with the anode returned to reference; the bulk packaging format reflects its original deployment in industrial and telecom equipment where axial-leaded components were the standard assembly format for field-replaceable modules.

Sourcing posture — obsolete status

The 1N6267AG is listed obsolete with no stated successor. Independent distribution is the primary channel for this order code — lot traceability, date-code documentation, and counterfeit-screening verification are the buyer's responsibility to specify at RFQ. The base product number 1N6267A may carry different environmental grades or termination finishes across manufacturers; confirm the full Littelfuse part number suffix and any associated changes before committing to a BOM substitution.

Frequently asked questions

What voltage does the 1N6267AG actually clamp at?

The reverse standoff typ is 5.8 V and the minimum breakdown is 6.45 V, so the device does not begin conducting until the transient exceeds that threshold.

What is the 1N6267AG used for?

The Mosorb series is a general-purpose Zener-based TVS for transient voltage suppression on low-voltage rails. The DO-201AD axial format and 1500 W peak pulse rating place it in industrial equipment, telecom infrastructure, and legacy instrumentation where through-hole TVS protection was the standard design approach.