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Rev. E
SP & SPW Series
Single Output
50, 66, 75, and 100 Watts
Half Brick DC/DC Converter
FEATURES
● CE Mark
● 100% Burn In
● Isolated and Regulated
● Wide Input Voltage Ranges
● Fixed Operating Switching Frequency
● Short Circuit and Over Voltage Protected
● Input and Output Filtering Integral to Supply
● UL1950, cUL950, TUV EN60950 File E155800
● 50, 66, 75, and 100 Watt Output Rating from Same Package
● Industry Standard Package (2.28” x 2.4” x 0.5”) and Footprint
DESCRIPTION
The SP & SPW series of single output half brick DC/DC converters offers up to 100 watts of output power in an industry
standard package and footprint. It is intended to provide power and isolation for pc board and chassis mount applications
requiring high power density. Some features include wide input voltage ranges, positive or negative remote on/off, remote
sense, output trim, short circuit protection, and over voltage protection. Being encapsulated, these supplies have improved
thermal dissipation and protection for ruggedized environments. All models are 100% burned-in.
SPECIFICATIONS: SP & SPW Series
All specifications apply @ 25°C ambient unless otherwise noted
INPUT SPECIFICATIONS
PROTECTION SPECIFICATIONS
Input Voltage Range
SP........................... 24VDC nominal input ........................ 18 - 36 VDC
48VDC nominal input ........................ 36 - 75 VDC
Short Circuit Protection................................................................ continuous
SPW ....................... 48VDC nominal input ........................ 18 - 75 VDC
Current Limiting Inception............................................ Approximately 125%
Input Filter ............................................................................... Pi input filter
Thermal Overload...................................... +110°C baseplate, self-resetting
Input Voltage Lockout ................ <16 >38VDC, <34 > 78VDC (See Note 1)
GENERAL SPECIFICATIONS
Input Reflected Ripple.............................................. 20mAp-p (See Note 2)
Efficiency .................................................................................... 85% typical
Remote ON/OFF Control (See Note 12)
Standard........................Active High Enable (Positive Remote ON/OFF)
“R” suffix .......................Active Low Enable (Negative Remote ON/OFF)
Switching Frequency (fixed) ................................................... 400kHz ±10%
OUTPUT SPECIFICATIONS
Output Voltage ............................................................................. See table
Over Voltage Protection ............... Approximately 120% Vout, self-resetting
Isolation Voltage
Input to Output ................................................................... 1500VDC min.
Input to Case ...............................................................................750VDC
Output to Case.............................................................................750VDC
Isolation Resistance (Input to Output) ............................................> 100MΩ
External Output Trim (minimum) ........................................................ ±10%
Voltage Tolerance....................................................................... ±1% max.
Output Current ............................................................................. See table
Output Power ............................................................................... See table
Line Regulation ................................................................................. ±0.1%
Load Regulation ............................................................................... ±0.1%
ENVIRONMENTAL SPECIFICATIONS
Operating Temperature ..................................... -40°C to +100°C baseplate
Storage Temperature ......................................................... -55°C to +125°C
Humidity (non-condensing)..................................................20% to 95% RH
Temperature Coefficient ........................................................ 0.01%/°C max
Minimum load........................................................................ none required
PHYSICAL SPECIFICATIONS
Ripple/Noise (20MHz BW) ...................................... 1.5% Vout (See note 3)
Weight .........................................................................Approximately 4.0 oz
Remote Sense ..................................................Up to 0.5V power line drop
Dimensions................................................ 2.28(L) x 2.4(W) x 0.5(H) inches
57.91(L) x 60.96(W) x 12.7(H) mm
Transient Response..........................................................±5.0% deviation,
100μ/sec recovery to within ±1.0%
Case Material ................................... non-metallic with aluminum baseplate
Due to advances in technology, specifications subject to change without notice
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
SP & SPW Series
Single Output
50, 66, 75, and 100 Watts
Half Brick DC/DC Converter
Rev. E
MODEL SELECTION GUIDE
Model Number
SP24S3.3-66
SP24S3.3-75
SP24S5-50
SP24S5-75
SP24S5-100
SP24S12-50
SP24S12-75
SP24S12-100
SP24S15-50
SP24S15-75
SP24S15-100
SP24S24-50
SP24S24-75
SP24S24-100
SP24S48-50
SP24S48-75
SP24S48-100
SP48S3.3-66
SP48S3.3-75
SP48S5-50
SP48S5-75
SP48S5-100
SP48S6-50
SP48S6-75
SP48S6-100
SP48S12-50
SP48S12-75
SP48S12-100
SP48S15-50
SP48S15-75
SP48S15-100
SP48S24-50
SP48S24-75
SP48S24-100
SP48S28-100
SP48S48-50
SP48S48-75
SP48S48-100
SPW48S3.3-66
SPW48S3.3-75
SPW48S5-50
SPW48S5-75
SPW48S5-100
SPW48S9-50
SPW48S12-50
SPW48S12-75
SPW48S12-100
SPW48S15-50
SPW48S15-75
SPW48S15-100
SPW48S24-50
SPW48S24-75
SPW48S24-100
SPW48S28-100
SPW48S48-50 (10)
Input Voltage Range
24 VDC
(18 – 36 VDC)
48 VDC
(36 – 75 VDC)
48 VDC
(18 – 75 VDC)
Output Voltage
3.3 VDC
3.3 VDC
5 VDC
5 VDC
5 VDC
12 VDC
12 VDC
12 VDC
15 VDC
15 VDC
15 VDC
24 VDC
24 VDC
24 VDC
48 VDC
48 VDC
48 VDC
3.3 VDC
3.3 VDC
5 VDC
5 VDC
5 VDC
6 VDC
6 VDC
6 VDC
12 VDC
12 VDC
12 VDC
15 VDC
15 VDC
15 VDC
24 VDC
24 VDC
24 VDC
28 VDC
48 VDC
48 VDC
48 VDC
3.3 VDC
3.3 VDC
5 VDC
5 VDC
5 VDC
9 VDC
12 VDC
12 VDC
12 VDC
15 VDC
15 VDC
15 VDC
24 VDC
24 VDC
24 VDC
28 VDC
48 VDC
Output Current
20A
22.7A
10A
15A
20A
4.16A
6.25A
8.33A
3.33A
5A
6.66A
2.08A
3.12A
4.17A
1.04A
1.56A
2.08A
20A
22.7A
10A
15A
20A
8.33A
12.5A
16.67A
4.16A
6.25A
8.33A
3.33A
5A
6.66A
2.08A
3.12A
4.17A
3.57A
1.04A
1.56A
2.08A
20A
22.7A
10A
15A
20A
5.56A
4.16A
6.25A
8.33A
3.33A
5A
6.67A
2.08A
3.12A
4.16A
3.57A
1.04A
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797
Output Power
66W
75W
50W
75W
100W
50W
75W
100W
50W
75W
100W
50W
75W
100W
50W
75W
100W
66W
75W
50W
75W
100W
50W
75W
100W
50W
75W
100W
50W
75W
100W
50W
75W
100W
100W
50W
75W
100W
66W
75W
50W
75W
100W
50W
50W
75W
100W
50W
75W
100W
50W
75W
100W
100W
50W
SP & SPW Series
Single Output
50, 66, 75, and 100 Watts
Half Brick DC/DC Converter
Rev. E
NOTES
1. Auto off power train protection.
2. For input reflected ripple of 20mA p-p, use an industry standard 12uH source impedance with a low ESR aluminum 33uf capacitor
across input.
3. Ripple & Noise is measured with a 10uf // 0.1uf across output.
4. All case, pin to case, and pin to header dimensions reference only unless otherwise noted.
5. Pin diameters are 0.04” except: those used for +Vout and -Vout are 0.08”. Pin length is 0.20” min.
6. Pin to pin tolerance ± 0.01”. Pin diameter tolerance ± 0.005”.
7. Significant capacitive load on output may inhibit start-up and operation, consult factory.
8. All DC/DC converters should be externally fused on the front end for protection.
9. Heatsinks available, consult factory.
10. 48VDC input with 48VDC output not available in 75 and 100 watt models.
11. Through-hole instead of threaded inserts available (0.125” diameter), add suffix “TH”
12. Positive Remote ON/OFF control is standard. To order negative logic Remote ON/OFF control add the suffix “R” to the part number
(Ex: SP48S48-100R).
MECHANICAL DRAWING
Unit: inches
(BOTTOM VIEW)
Tolerance: X.XX ±0.020
X.XXX±0.010
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797