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AC120LTR Gas Discharge Tube (GDT) with 285V DC breakdown, 5kA nominal impulse discharge current, 2-pole through hole package.
Mfr Part #:

AC120LTR

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
Gas Discharge Tube (GDT) with 285V DC breakdown, 5kA nominal impulse discharge current, 2-pole through hole package.
Total Stock: 17,600 pcs
$ Price Range: $1.50 - $2.74

AC120LTR Available from 1 distributor

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
17,600 pcs
17600 pcs On Request 1 On Request On Request On Request On Request On Request

AC120LTR Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Agency Approvals
Arc Voltage
Capacitance
DC Breakdown Voltage
Fail Short
Follow On Current
Impulse Discharge Current (8
Insulation Resistance
Lead Style
Medical Grade
Mounting Type
Number of Poles
SVHC Present
Storage Temperature
Tape & Reel
Voltage
ac_discharge_current (Maximum @ 1 x 50 Hz 9 cycles)
ac_discharge_current (Nominal @ 10 x 1 sec @50-60 Hz)
impulse_breakdown_voltage (Maximum @ 1 kV/µs)
impulse_breakdown_voltage (Maximum @ 100 V/µs)
impulse_discharge_current (Maximum @ 8/20 µs, 1 shot)
impulse_discharge_current (Nominal @ 8/20 µs, 10 shots)

AC120LTR Description

Short technical summary and product information.

The AC120LTR is a two-electrode gas discharge tube from Littelfuse's AC series, designed for AC line surge protection. It features a DC breakdown voltage of 285V typical (230V min, 340V max), low capacitance <1.5pF, and high insulation resistance 10 GΩ min. The device can handle impulse discharge currents up to 5kA nominal (8/20µs) and AC discharge currents of 5A nominal. It is housed in an axial cylinder through hole package with a fail-safe design (non-fail short). The GDT is RoHS3 compliant and has a moisture sensitivity level of 1 (unlimited).

 

Applications include CRT terminals, CATV equipment, antennas, power supplies, and medical electronics. The AC series is specifically optimized for 120VAC and 240VAC line protection, with the ability to extinguish AC follow-on currents up to 200A.

 

With a rugged ceramic-metal construction, this GDT provides reliable overvoltage protection in a compact axial cylinder package. Its low capacitance minimizes signal distortion in high-frequency applications.

AC120LTR Quick Information

Product Type: Gas Discharge Tube (GDT)
Series: AC Series
Canonical Name: Littelfuse AC120LTR Gas Discharge Tube
Subcategory: Two-Electrode GDT

AC120LTR Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

AC120LTR Estimated Pricing

Qty Low High
1+ $2.74 $2.74
10+ $2.39 $2.39
100+ $2.02 $2.02
500+ $1.66 $1.66
1,000+ $1.50 $1.50

Estimated market price range - modelled values for guidance only, not live distributor offers.

AC120LTR Features

  • 285V typical DC breakdown voltage.
  • Low capacitance <1.5 pF at 1 MHz.
  • 5 kA nominal impulse discharge current.
  • Through hole axial cylinder package.
  • RoHS3 compliant.

AC120LTR Applications

  • Ideal for AC line surge protection.
  • Used in CRT terminals and CATV equipment.
  • Suitable for power supply and medical electronics.
  • Protects antennas and long branch circuits.

AC120LTR FAQs

5 frequently asked questions generated from this part’s specifications.
What is the DC breakdown voltage of the AC120LTR?

The DC breakdown voltage is 285V typical, with a minimum of 230V and maximum of 340V, tested at 100V/s.

What is the package type of the AC120LTR?

The AC120LTR comes in an axial cylinder package with through hole mounting.

Is the AC120LTR RoHS compliant?

Yes, the part is listed as RoHS3 compliant, though this is unverified.

What is the impulse discharge current rating of the AC120LTR?

The nominal impulse discharge current is 5 kA (8/20µs, 10 shots), with a maximum of 10 kA for a single shot.

What is the capacitance of the AC120LTR?

The capacitance is less than 1.5 pF at 1 MHz.

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