RE46C122E16F IC Sensors by Microchip Technology

Ionization Smoke Detector ASIC

Status: Active
Series: RE46C122
RoHS: Compliant
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The RE46C122 is low power CMOS ionization type smoke detector IC. With few external components this circuit will provide all the required features for an ionization type smoke detector. An internal oscillator strobes power to the smoke detection circuitry for 10.5mS every 1.66 seconds to keep standby current to a minimum. A check for a low battery condition is performed every 40 seconds when in standby. The temporal horn pattern supports the NFPA 72 emergency evacuation signal. An interconnect pin allows multiple detectors to be connected such that when one units alarms all units will sound. An internal 10 minute timer allows for a separate button to be used for reduced sensitivity mode. Although this device was designed for smoke detection utilizing an ionization chamber it could be used in a variety of security applications. The RE46C122 was designed for use in smoke detectors that comply with Underwriters Laboratory Specification UL217 and UL268.

Where to Buy

Prices starting from US$0.81

Distributor Stock
Logo for Microchip Technology Inc
Microchip Technology
from US$0.81
761
in stock
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Logo for Future Electronics NA
Future Electronics
from US$0.85
0
in stock
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Avnet America
from US$0.90
0
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Features

>1500V ESD Protection (HBM) on all Pins
Guard Outputs for Ion Detector Input
+/-0.75pA Detect Input Current
Internal Reverse Battery Protection
Low Quiescent Current Consumption (<6.5uA)
Available in 16L PDIP or 16L N SOIC
Internal Low Battery Detection
Power Up Low Battery Test
Interconnect up to 40 Detectors
10 Minute Timer for Sensitivity Control
Compatible with Allegro A5367
Available in Standard Packaging or RoHS Compliant Pb Free Packaging.

Specifications

Type Ionization
Powerup Low Battery Test True
Internal POR False
Horn Driver Alarm Pattern NFPA Temporal
Operating Voltage Min 6
Operating Voltage Max 12
Typical Iq (uA) 5
Operating Temp Min -10
Operating Temp Max 60
Chamber test False
Sensitivity Timer True
Alarm Interconnect True
Low Battery Detect True
Alarm Memory False
Pins | Packaging 16 | PDIP
Temp Range -10C to +60C
Packing Media Conductive Tube (25)

Last 6 months Inventory & Pricing History


Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 1.1127
Shipping Weight (kg) 1.88
Lead Count 16
Package Type PDIP
Package Width or Size .300in
Soldering Composition Matte Tin

Alternative Descriptions

Ionization smoke detector IC w/temporal, interconnect, timer, low batt | Microchip Technology
IONIZATION SMOKE DETECTOR IC W/TEMPORAL, INTERCONNECT, TIMER, LOW BATT | Future Electronics
Ionization Smoke Detector Temporal Tone 16-Pin PDIP Tube | Avnet America


Frequently Asked Questions

Where can I find additional details, specifications and documents for a RE46C122E16F?

Additional datasheets, footprints and schematics for RE46C122E16F are listed on our Part Details page. You can also find images and similar parts to RE46C122E16F on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for RE46C122E16F on our Product Comparison page. Access via the 'View Pricing & Stock' button to view RE46C122E16F price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does RE46C122E16F fall under?

The RE46C122E16F is listed under Semiconductors - ICs > IC Sensors > Smoke Detector.

Can I view similar or alternative parts?

You can view similar parts to RE46C122E16F when available in the Smoke Detector range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the RE46C122E16F you can contact the distributor directly for product support, shipping queries etc.

Is the RE46C122E16F RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

Which authorised distributors for RE46C122E16F have stock available?

Authorised distributors including Microchip Technology, Future Electronics and Avnet America have stock available or on a lead time for RE46C122E16F.

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