ASTUA3 [Littelfuse]

Name: ASTUA3
Brand: Littelfuse
SKU: ASTUA3
Availability: InStock

Part No:

ASTUA3

Category:

Relays, Contactors & Solenoids

Manufacturer:

Littelfuse

Description:

The ASQU and ASTU Series of 17.5 mm, knob adjustable, universal solid-state timers offer multiple functions, voltages, and time delay ranges.

Datasheet:

Stock Status:

Available for RFQ

Pricing:

Request Volume Pricing

Quote Response:

Within 24 Hours

Shipping:

In-stock parts ship in 1–2 business days

Specification

Type

Parameter

Operating Humidity

95% relative, non-condensing

Operating Temperature

-40°C ~ 60°C

Weight

≅ 4 oz (113 g)

Storage Temperature

-40°C ~ 85°C

ASQUA3 Input Voltage

24 to 240VAC; -20% - 10%

ASQUA3 Termination

0.25 in. (6.35 mm) male quick connect terminals

ASQUD3 Input Voltage

9 to 110VDC; -0% - 20% @ -25°C; 9.4 to 110VDC; -0% - 20% @ -40°C

ASQUD3 Termination

0.25 in. (6.35 mm) male quick connect terminals

ASTUA3 Input Voltage

24 to 240VAC; -20% - 10%

ASTUA3 Termination

0.197 in. (5 mm) push-on terminal blocks for up to #14 AWG (2.5 mm2) wire

ASTUD3 Input Voltage

9 to 110VDC; -0% - 20% @ -25°C; 9.4 to 110VDC; -0% - 20% @ -40°C

ASTUD3 Termination

0.197 in. (5 mm) push-on terminal blocks for up to #14 AWG (2.5 mm2) wire

Ac Line Frequency Dc Ripple

50/60Hz / ≤ 10%

Adjustment

Knob with dial; 2 switches select 1 of 4 multipliers

Circuitry

Encapsulated

Dielectric Breakdown

≥ 2000V RMS terminals to mounting surface

Dimensions

H 76.2 mm (3.0”); W 17.52 mm (0.69”); D 61.2 mm (2.41”)

Initiate Time

Single Shot & Delay-on-Break: ≤ 32ms

Mounting Type

Two base adaptors: DIN Rail (snap on to 32 mm DIN 1 & 35 mm DIN 3 rail) and Surface (two #6 screws or quick mount fasteners)

Output Form

No

Output Rating

0.7A steady state, 10A inrush

Output Type

Solid state

Polarity

DC units are reverse polarity protected

Range

0.1 - 10s, 1 - 100s, 10 - 1000s, 1 - 100m

Repeat Accuracy

±1% or ±50ms, whichever is greater

Reset Time

≤ 300ms

Surge Protection

IEEE C62.41-1991 Level A

Time Delay Type

Microcontroller based with ceramic resonator and watchdog circuitry

Time Delay Vs Temp Voltage

±2%, or ±50ms, whichever is greater

Tolerance

±2% or ±50ms, whichever is greater

Voltage Drop

AC ≅ 2.5V @ 0.7A; DC ≅ 1.5V @ 0.7A

Products Detail

The ASQU and ASTU Series are 17.5 mm, knob adjustable, universal solid-state timers that offer multiple functions and time delay ranges. They feature 5 timing functions and 4 time delay ranges selectable via switches, with adjustment via an onboard knob. The ASQU series has quick connect terminals while the ASTU series has terminal blocks. Key features include universal AC/DC voltage compatibility (24-240VAC or 9-110VDC), compact size for high rail density, repeat accuracy of ±1%, solid-state output rated at 0.7A steady state and 10A inrush, field adjustable delay from 0.1s to 100m, and watchdog circuitry for self-monitoring. They include mounting fasteners for both surface and DIN rail mounting.

Key Features

Universal AC or DC voltage: 24 to 240VAC or 9 to 110VDC
Compact 17.5mm size
Microcontroller based
Repeat Accuracy ±1%
Multifunction: 5 timing functions
Field adjustable delay: 0.1s - 100m
Solid-state output: 0.7A steady, 10A inrush
100 million operations in typical conditions
Mounting fasteners included (surface and DIN rail)
Watchdog circuitry: self monitoring and self correcting

Documents

Datasheets:

ASQU, ASTU Series Datasheet

Product FAQ

1. Is ASTUA3 available for RFQ?

Yes. ASTUA3 by Littelfuse is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

2. Why is there no fixed price for ASTUA3?

Pricing for ASTUA3 can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

3. What are the key specifications of ASTUA3?

ASTUA3 is a Littelfuse Relays, Contactors & Solenoids with Ac Line Frequency Dc Ripple: 50/60Hz / ≤ 10% and Time Delay Vs Temp Voltage: ±2%, or ±50ms, whichever is greater. Review the product details or submit an RFQ if you need confirmation before purchase.

4. How fast can I get a quote for ASTUA3?

Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

5. How soon can ASTUA3 be shipped?

If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

6. Can you suggest alternatives to ASTUA3?

Yes. If ASTUA3 is unavailable, obsolete, or does not meet your required lead time, we can help check similar Littelfuse Relays, Contactors & Solenoids parts or compatible alternatives.

Featured Product

Related Information

Part Number
Manufacturer
Stock Status
Pricing
RoHS/Datasheet
CON-3/120/90
Littelfuse
Available for RFQ
Request Volume Pricing
-
CPC1150NTR
Littelfuse
Available for RFQ
Request Volume Pricing
DCNEVT150-C
Littelfuse
Available for RFQ
Request Volume Pricing
-
HE721A0510
Littelfuse
Available for RFQ
Request Volume Pricing
KRDM1130S
Littelfuse
Available for RFQ
Request Volume Pricing
-
777-LR-P2
Littelfuse
Available for RFQ
Request Volume Pricing
CPC2030N
Littelfuse
Available for RFQ
Request Volume Pricing
HE722A0540
Littelfuse
Available for RFQ
Request Volume Pricing
LAA108STR
Littelfuse
Available for RFQ
Request Volume Pricing
EL731-01-10
Littelfuse
Available for RFQ
Request Volume Pricing

FS126-60

Littelfuse

LAA100PLTR

Littelfuse

777VA-02

Littelfuse

ISS-105-ISO-3

Littelfuse

CPC1927J

Littelfuse

KRPD215S190SMB

Littelfuse

HRV43AE

Littelfuse

05930300

Littelfuse

D0900.0030

Littelfuse

KSDB113MP

Littelfuse

Switches(351261)Printers(0)Motors & Drives(12643)Audio Devices(11053)Knobs & Dials(2711)Circuit Breakers(0)Hardware(25618)Industrial Automation(23025)Valves(1109)Fans & Blowers(30969)Heat Exchangers(533)Liquid Cooling & Heat Pipes(161)Liquid Cooling Connectors & Accessories(0)Thermal Interface Products(784)

No recently viewed products