(888) IPD-CONVerters

(888) 473-2668

www.ipdconverters.com

Turn-On Time

30 ms

Remote Shutdown

Positive or Negative Logic

Remote Shutdown Reference

Negative

Switching Frequency

400 kHz

Isolation

Input - Output

1500 VDC

Input - Case

1050 VDC

Output - Case

1050 VDC

Temperature Coefficient

0.02 ppm/°C

Case Temperature

Operating Range

-40°C To

100°C

Storage Range

-40°C To

125°C

Thermal Shutdown Range

105°C To 115°C

Vibration, 3 Axes, 5 Min Each

5 g, 10 - 55 Hz

MTBF

(Bellcore TR-NWT-000332)

2.5 X 10

hrs

Safety

UL, CUL, TUV

Weight (Approx.)

1.7 oz

TECHNICAL SPECIFICATIONS

Voltage Range

24 VDC Nominal

18 - 36 VDC

48 VDC Nominal

36 - 75 VDC

Input Reverse Voltage Protection

Shunt Diode

QBS single output DC/DC converters provide up to
120 Watts of output power in an industry standard,
quarter-brick footprint. The QBS converters feature
open-frame packaging, along with planar magnetics to
provide maximum useable power with minimal
thermal constraints. The QBS is especially suited to
telecom, networking, and industrial applications, and
is fully compatible with production board washing
processes.

· "Quarter-Brick"
· High Power Density Up

To 120W

· Open-Frame Packaging
· 100°C Baseplate Operation

· Water Washable
· Outputs From

2.5V to 15V

· 1500V Isolation
· Positive or Negative

Enable Logic

Input

Output

General

DESCRIPTION

FEATURES

QBS SERIES - 120 WATT

Setpoint Accuracy

±1%

Line Regulation V

Min. - V

Max., I

out

Rated

0.2% V

out

Load Regulation I

out

Min. - I

out

Max., V

Nom.

0.5% V

out

Remote Sense Headroom

0.5 VDC

Minimum Output Current

10 % l

out

Rated

Dynamic Regulation, Loadstep

25% I

out

Pk Deviation

4% V

out

Settling Time

500

Voltage Trim Range

±10%

Short Circuit And Overcurrent Protection

Shutdown

Current Limit Threshold Range, % of I

out

Rated

110 - 140%

Short Circuit Current Limit

200% I

out

OVP Trip Range

115 - 140% V

out

Nom.

UVP Trip Range

70 - 90% V

out

Nom.

OVP/UVP Type

Latching

QBS100ZG-ANT

100

LOAD%

EFFICIENCY

EFF. (36v)

EFF. (48v)

EFF. (75v)

Efficiency vs. Load (48V Input)

MTBF predictions may vary slightly from model to model.

Specifications typically at 25°C, normal line, and full load, unless otherwise stated.

Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with
commercial wave-soldering equipment.

Safety: Agency approvals may vary from model to model. Please consult factory
for specific model information.

Units are water-washable and fully compatible with commercial spray or immersion
post wave-solder washing equipment.

Notes

Rev. 0

4/2001

MECHANICAL DRAWING

QBS SERIES - 120 WATT

Thermal Impedance

Natural Convection

10.1 °C/W

100 LFM

8.0 °C/W

200 LFM

5.4 °C/W

300 LFM

4.4 °C/W

400 LFM

3.4 °C/W

Tolerances

Note:
Thermal impedance data is dependent on
many environmental factors. The exact
thermal performance should be validated for
specific application.

-V

On/Off

-V

out

-Sense

Trim

+Sense

out

Inches:
.XX ± 0.020
.XXX ± .010

Pin:
± 0.002 ±

0.05

( Dimensions as listed unless otherwise specified.)

(Millimeters)
.X ± 0.5
.XX ± 0.25

P i n

Function

MODELS - (See the last page of this file for options.)

QBS

DIA 0.062"

0.450"(11.4mm)

0.150"(3.8mm)

-0.425"(-10.8mm)

0.815"(20.7mm)

-0.215"(-5.5mm)

0.600"(15.2mm)

0.300"(7.6mm)

M3X0.5 THROUGH 4PL

MOUNTING INSERTS

(1.6mm)

DIA 0.040"

(1.0mm)

0.18"

(4.6mm)

0.50"

(12.7mm)

2.28"

(57.9mm)

1.45"

(36.8mm)

BOTTOM VIEW

-0.14"

(-3.6mm) 0.070"

(1.8mm)

1.930"

(49.0mm)

2.000"

(50.8mm)

2PL

6PL

Vin

(Volts)

Vin Range

(Volts)

Iin Max.*

(Amps)

Vout

(Volts)

Iout Rated

(Amps)

Ripple & Noise

Pk-Pk (mV)

Efficiency

Typ. **

Model

24
24
24
24
24
48
48
48
48
48
48
48
48
48

18 - 36
18 - 36
18 - 36
18 - 36
18 - 36
36 - 75
36 - 75
36 - 75
36 - 75
36 - 75
36 - 75
36 - 75
36 - 75
36 - 75

2.90
3.50
5.20
6.80
6.80
1.40
1.70
2.50
3.30
4.00
3.30
2.50
3.45
4.00

2.5
3.3

12
15

2.5
3.3

12
12
15

3.3
5.0

15.00
15.00
15.00

8.33
6.67

15.00
15.00
15.00

8.33

10.00

6.67
20.0
20.0

8.0

100
100
100
150
150
100
100
100
150
150
150
100
100
150

76%
80%
84%
85%
85%
75%
78%
83%
86%
84%
86%
80%
82%
84%

QBS038YD-A
QBS050YE-A
QBS075YG-A
QBS100YH-A

QBS100YJ-A
QBS038ZD-A
QBS050ZE-A
QBS075ZG-A
QBS100ZH-A

QBS120ZH-A

QBS100ZJ-A
QBS066ZE-A

QBS100ZG-A

QBS120ZJ-A

Denotes advanced product release. Consult factory for product availability.
* Maximum input current at minimum input voltage, maximum rated output power.
** At nominal Vin, rated output.

OPTIONS

When ordering equipment options, use the following suffix information. Select the option(s) that
you prefer and add them to the model number. Example ordering options are located below the
options table.

OPTION

SUFFIX

APPLICABLE SERIES

REMARKS

Negative Logic

HAS, HBD, HBS, HES, LES, QBS,
QES, TES, TQD

TTL "Low" Turns Module ON
TTL "High" Turns Module OFF

Lucent Compatible Trim

HAS, HBD, HBS, HES, QBS, QES

Terminal Strip TS XWS, XWD, XWT

Trim

IAS, LES

Enable

IAD, IAS, LES, SMS

Trim and Enable

IAS, LES

Current Share

SMS

Headerless

Encapsulated EWS, IWS, OWS

PIN LENGTH AND HEATSINK
OPTIONS

Standard Pin Length is 0.180"
(4.6mm)

0.110" (2.8mm) Pin Length

All Units (Except SMS)

0.150" (3.8mm) Pin Length

All Units (Except SMS)

0.24" (6.1mm) Horizontal Heatsink