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Vicor Corp. Tel: 800-735-6200, 978-470-2900 Fax: 978-475-6715
VI-IAM Input Attenuator Modules
Rev. 1.2
Page 2 of 5
Set your site on VICOR at www.vicorpower.com
SPECIFICATIONS
(typical at TBP = 25°C, nominal line and 75% load, unless otherwise specified)
Parameter
Min
Typ
Max
Units
Test Conditions
Efficiency
97
%
Baseplate to sink
0.14
°C/Watt
Operating temperature,
baseplate
100
°C
See product grade specifications
Storage temperature
125
°C
See product grade specifications
THERMAL CHARACTERISTICS
Parameter
Min
Typ
Max
Units
Test Conditions
Weight
3.0 (85)
ounces (grams)
MECHANICAL SPECIFICATIONS
Parameter
Min
Typ
Max
Units
Test Conditions/Notes
Clamp voltage
24 Vdc input
36.0
44.0
Vdc
–A11– models
40.5
50.0
Vdc
–AWW– models
48 Vdc input
62.0
71
Vdc
–A33– models
80.0
90.0
Vdc
–ANN– models
300 Vdc input
400
435
Vdc
–A66– models
Output power
24 V models
250
Watts
Output of IAM
48 V models
510
Watts
Output of IAM
300 V models
510
Watts
Output of IAM
Internal voltage drop
24 Vdc
0.6
0.85
Vdc
48 Vdc
0.6
0.95
Vdc
300 Vdc
1.7
3.5
Vdc
Overload protection
24 Vdc input
–AWW–
20
Amps
–A11–
15
Amps
Foldback threshold; auto recovery
48 Vdc input
–ANN–
20
Amps
–A33–
15
Amps
with latched shut down after 2 ms
300 Vdc input –A66–
4
Amps
OUTPUT CHARACTERISTICS
Parameter
Min
Typ
Max
Units
Test Conditions
Input to base
1,500
Vrms
1 minute
Output to base
1,500
Vrms
1 minute
ISOLATION CHARACTERISTICS
EMI/ RFI (conducted emissions)
Meets Bellcore TR-TSY-000513, Issue 2, Rev. 1 (24 and 48V Input);
British Telecom BTR 2511, Issue 2 (24 and 48V Input);
FCC Part 15, Class A, EN55022 Class B
EMI CHARACTERISTICS
Parameter
E
C
I
M
Storage Temp. (Baseplate)
–20°C to +105°C
–40°C to +105°C
–55°C to +105°C
–65°C to +105°C
Operating Temp. (Baseplate)
–10°C to +100°C
–25°C to +100°C
–40°C to +100°C
–55°C to +100°C
PRODUCT GRADE SPECIFICATIONS
Meets Bellcore TA-TSY-001003, Issue 1, 9/89
British Telecom BTR 2511, IEC61000-4-5 Level 2 (VI-A66 only)
TRANSIENT PROTECTION