TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
1 Amp SOLID STATE RELAYS
DEVICES
LEVELS AVAILABLE
MHS2501 Series
(Consult Table 3 for Part Number Designations)
COTS
CLASS H
CLASS K
FEATURES
Operates from 3.3V to 5V logic levels
Internal Switch rated for 175°C T
j
250V Operation (Note 1)
Total dose capable > 300 Krads (Note 3)
> 1000V of I/O isolation
Buffered input
Inputs protected against over voltage (ESD rating of 1C)
Preliminary SE results show no SEB through an LET of 85 (MeV / (mg / cm
2
)) at a fluence of 2e
6
ions / cm
2
DESCRIPTION:
The MHS series are Solid State Relays where the input and output circuitry are isolated from each other. The series
consists of singles, duals, quads, and octals, and provides the normally open (N.O.) function. Microsemi Solid
State Relays are designed for Space Flight Applications, and come packaged in a variety of hermetic configurations.
These units have buffered logic level inputs and can be controlled from 3.3V or 5V logic signals, thus providing
greater flexibility of design.
Table 1 – ABSOLUTE MAXIMUM RATINGS (Tc
= +25°C unless otherwise noted)
Parameters / Test Conditions
Input Voltage
Output Current (Note 2)
Output Voltage (Note 1)
Weight
Temperature Range, Base of Package
Storage Temperature Range
Lead Temperature
Junction Temperature, FET Switch
THERMAL CHARACTERISTICS
Parameters / Test Conditions
Thermal Resistance, Junction-to-Case
Symbol
R
θJC
Value
17
Unit
°C/W
Symbol
V
in
, V
L
Io
V
O
T
C
T
stg
T
L
T
j
Value
+15
2.25
250
-55 to
+125
-65 to
+150
300
175
Unit
Vdc
A
Vdc
Grams
°C
°C
°C
°C
T4-LDS-0153 Rev. 2 (110368)
Page 1 of 8
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
1 Amp SOLID STATE RELAYS
Table 2 – ELECTRICAL CHARACTERISTICS, PER CHANNEL
(T
C
= +25°C, V
L
= 5 Volts, V
in
= 0 V or 3.3V as appropriate, unless otherwise noted)
Parameters / Test Conditions
Minimum Input Activation Voltage
Io = 1A, TC = -55 to +125°C
Input - Output Leakage
Vio = 1kV for 5 sec. (Note 4)
Output Capacitance (Note 4)
Vds = 100V
Output on Resistance
Id = 1A
Output on Resistance
Id = 1A, Tj = 125°C
Output Leakage
Vin = 0, Vo = 100V
Output Leakage
Vin = 0, Vo = 80V, Tj = 125°C
Input Buffer Supply Current
VL = 5V, TC = 25°C, 125°C
Current to Activate
Vin = 3.3V
VL = 5V, T
C
= -55 to +125°C
Turn On Delay (See Figure 6)
VS = 28V, RL = 250Ω, TC = -55 to +125°C
Turn Off Delay (Figure 6)
VS = 28V, RL = 250Ω, TC = -55 to +125°C
Rise Time (Figure 6)
VS = 28V, RL = 250Ω (Note 4)
Fall Time (Figure 6)
VS = 28V, RL = 250Ω (Note 4)
Symbol
Vin(min)
Iio
Coss
Rds(on)
Rds(on)
Io
1
Io
2
Ih
Iin
ton
toff
tr
tf
Min.
3.0
Nom
Max.
Unit
V
1
20
0.6
1.3
1
1
10
400
30
20
50
5
0.75
1.5
100
100
15
600
45
30
75
10
μA
pF
Ω
Ω
μA
μA
mA
μA
μS
μS
μS
μS
T4-LDS-0153 Rev. 2 (110368)
Page 2 of 8
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
1 Amp SOLID STATE RELAYS
Table 3 – MODEL NUMBER FUNCTIONALITY CHART
ELECTRICAL
RATINGS
Voltage
Amps
RELAY CONFIGURATION
Single
SPST
N.O.
Dual
SPST
N.O.
Quad
SPST
N.O.
Octal
SPST
N.O.
8 Pin
Flat
Pack
PACKAGE TYPE
16 Pin
Flat
Pack
32 Pin
Flat
Pack
64 Pin
Flat
Pack
MODEL NUMBER
MHS2501OF$-&
MHS2501DF$-& 1/
MHS2501QF$-& 1/
MHS2501KF$-& 1/
250
250
250
250
1
1
1
1
Replace “$” with letter to denote required screening level
C = COTS
H = CLASS H
K = CLASS K
Replace “&” with lead bend option
1 = No lead bend
2 = SMT lead bend
3 = Lead bend down
4 = Lead bend up
1/ Consult Factory
T4-LDS-0153 Rev. 2 (110368)
Page 3 of 8
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
1 Amp SOLID STATE RELAYS
Table 4 – RELIABILITY SCREENING OPTIONS
C
COTS
Element Evaluation
Non-Destruct Wirebond Pull
Pre-Cap Visual
Temperature Cycle
Constant Acceleration
PIND
Pre-Burn In Electrical
Burn In
Final Electrical Tests
Hermeticity (Fine and Gross Leak)
X-Ray
External Visual
Certified
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
100% (25C)
100%
N/A
Sample
N/A
H
K
EQUIVALENT
MIL-PRF-38534 (Note 3)
Class H
Class K
Sample
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
100%
(160 hours) (320 hours)
100%
100%
100%
100%
N/A
100%
100%
100%
Yes
Yes
MIL-STD-883
METHOD
2023
2017
1010
2001
2020
1015
1014
2012
2009
NOTE:
(1) Internal switch is rated for > 1000 Volts breakdown. Consult factory for use at Voltages greater than 250
Volts.
(2) Current handling capability depends upon allowable Tcase and allowable T
j
. See Figure 1.
(3) Microsemi does not at this time have a MIL-PRF-38534 qualified radiation hardness assurance program.
(4) Guaranteed by design.
(5) Because of the relatively slow switching times involved in power SSRs, it is important to stay within the
allowances of the performance curves.
T4-LDS-0153 Rev. 2 (110368)
Page 4 of 8
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803
Website: http: //www.microsemi.com
1 Amp SOLID STATE RELAYS
Figure 1: Maximum Switch Current as a Function of Case Temperature (per Channel) (Note 2)
=
Tj
12
5°C
Figure 2: Recommended Operating Area
SOA Power - Maximum Operating Loci Tj=125C
MHS 1.5A SiC JFET Ag Epoxy Mount-Kovar Pkg Tc=25C Rds(on)=0.643Ω
10
Rds(on) = 0.675Ω at Top = 25C
1
Current (A)
10us
0.1
30us
100us
300us
1ms
10ms
100ms
DC
0.01
0.1
1
10
100
1000
Top = 25C
Tjmax = 175C
Voltage (V)
T4-LDS-0153 Rev. 2 (110368)
Page 5 of 8
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