IR Source Series 400 pages

SERIES 40
THIN FILM 1.2 & 4 WATT INFRA-RED EMITTERS
This IR source is a high emissivity thermal emitter which can be modulated at low frequencies. It is appropriate for use in
lab or field instrumentation due to its long life and stable properties.

The IR source is based on a thin film which operates at approximately 600° (875K) when powered with 35 V for the
C
IR-40 and 13V for the IR-43. The radiating element is a 1.5µm film of precision laser trimmed resistance material which
has a high emissivity in the infra-red spectral region. The element is permanently bonded to a flat substrate of alumina
forming a fixed and stable platform. This contributes to a uniform radiating source.
Operation in a controlled or sealed atmosphere is not required. Due to the low thermal mass of these parts, they can be
modulated at rates up to a few Hz. For higher modulation speeds, the Series 50 IR sources should be considered.
Part #
IR-40NC
IR-40
IR-40S

Temperature
Voltage
Current
Active Area
Modulation
Rate
Lifetime
Emissivity

Description
4W TO5 header no cap
4W TO5 header with cap (as picture
above)
4W TO5 header with cap and sapphire
window

Part #
IR-43NC
IR-43

600° (875K)
C
35.0 volts RMS (AC or DC)
0.115 Amps
3.5 x 2.5 mm
A few Hz

Temperature
Voltage
Current
Active Area
Modulation
Rate
Lifetime
Emissivity

3+ years at 600° typical
C,
0.8

Scitec Instruments Ltd
Bartles Industrial Estate
North Street
Redruth
Cornwall TR15 1HR
United Kingdom
t.
f.
f2.
i.
e.

+44 [0]1209 314608
+44 [0]1209 314609
+44 [0]870 1600860
www.scitec.uk.com
scitec@scitec.uk.com

Issue 1.4

IR-43S

Description
1.2W TO5 header no cap
1.2W TO5 header with cap (as picture
above)
1.2W TO5 header with cap and
sapphire window
600° (875K)
C
13.0 volts RMS (AC or DC)
0.090 Amps
1.5 x 1.5 mm
A few Hz
3+ years at 600° typical
C,
0.8