Datasheet

PAH-28 Vout, 350-Watt Series
Isolated, 350-Watt, Half-Brick DC-DC Converters
MDC_PAH-28Vout-350W.B05 Page 13 of 21
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MECHANICAL SPECIFICATIONS
Since there is some pinout inconsistency between manufacturers of half brick converters, be
sure to follow the pin function, not the pin number, when laying out your board.
Standard pin length is shown. Please refer to the Part Number Structure for special order pin
lengths.
* Note that the “case” connects to the baseplate (when installed). This case connection is
isolated from the rest of the converter. Pin 2 may be deleted under special order. Please contact
Murata Power Solutions for information.
The Trim connection may be left open and the converter will achieve its rated output voltage.
Third Angle Projection
Dimensions are in inches (mm shown for ref. only).
Components are shown for reference only.
Tolerances (unless otherwise specified):
.XX ± 0.02 (0.5)
.XXX ± 0.010 (0.25)
Angles ± 2˚
INPUT/OUTPUT CONNECTIONS
Pin Function
1 −Vin
2 Case ground
3 On/Off Control
4 +Vin
5 +Vout
6 +Sense
7 Trim
8 −Sense
9 −Vout
L
MOUNTING INSERT OPTIONAL
B: M3 THREAD TYP 4PL
B1: ij 3.2 THRU HOLE TYP 4PL
ij 0.082±0.001(2.083±0.025)
5
PINS 1-4,6-8:
ij 0.040±0.001(1.016±0.025)
PINS 5,9:
SEE NOTE 8
0.50 (12.7)
0.010 (0.254) Min
3:ALL DIMENSION ARE IN INCHES [MILLIMETERS];
1:FOR OPTIONAL M3, THE M3 SCREW USED TO BOLT UNIT'S BASEPLATE TO OTHER
UNLESS OTHERWISE SPECIFIED:
NOTES:
4:ALL TOLERANCES: ×.××in ,±0.02in(×.×mm,±0.5mm)
×.×××in ,±0.01in(×.××mm,±0.25mm)
SURFACES (SUCH AS HEATSINK) MUST NOT OUT OF THE RANGE FROM 0.138''(3.5mm) TO
0.236''(6mm)DEPTH BELOW THE SURFACE OF BASEPLATE
2:APPLIED TORQUE PER SCREW SHOULD NOT EXCEED 5.3In-lb(0.6Nm);
FOR L2 PIN LENGTH OPTION IN MODEL NAME, USE STANDARD L2 PIN WITH PIN LENGTH TO 0.145 Inch
8:STANDARD PIN LENGTH: 0.180 Inch
7:*The Remote On/Off Can Be Provided With Either Positive Or Negative ("N"Suffix) Logic
BEFORE REMOVAL OF PROTECTIVE HEAT SHIELD;
6:OVERALL DIMENSIONS:2.30(58.42)×2.4(60.96)×0.50(12.7)
5:COMPONENTS WILL VARY BETWEEN MODELS
8
1
2
3
4
6
7
9
PIN STANDOFF IS LOWER THAN DIA
3.2mm THROUGH HOLE RIVET STANDOFF
SECTION A-A
0.126 (3.2)
Min
THREADED TYP 4PL
0.50 (12.7)
0.008 (0.20)
0.335 (8.51) TYP 4PL
Top View
1.900 (48.26)
0.165 (4.19)
±0.015 (±0.38)
0.600
(15.24)
1.400 (35.56)
2.40 (60.96)
0.600 (15.24) 1.400 (35.56)
2.30 (58.42)
Bottom Pin Side View
2.00 (50.8)