Holt PM DB2725EX transformer featuring 3 percent tolerance turns ratio and high common mode rejection

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Product Description

Product Overview

The Premier PM-DB2725EX is a transformer designed for demanding applications, meeting MIL-STD-1553 and MIL-PRF-21038 electrical characteristics. It offers precise turns ratios and controlled impedance for reliable signal transmission.

Product Attributes

Brand: Premier
Part Number: PM-DB2725EX
Revision: 01/05/21
Engineer: Peter Pham
Reference: 21038/27-25EX
Case Material: Flame Resistant, Diallyl Phthalate
Certifications: MIL-STD-1553, MIL-PRF-21038

Technical Specifications

Parameter	Units	Specification	Remarks
Turns Ratio's		(1-3):(4-8) 1:2.50 3%	Frequency: 10 KHz
Turns Ratio's		(1-3):(5-7) 1:1.79 3%	Frequency: 10 KHz
DC Resistance		1-3: 1.0 Max	At 25C
DC Resistance		4-8: 3.5 Max	At 25C
Impedance		4000 Min	Frequency: 75 KHz to 1.0 MHz
Common Mode Rejection	dB	45 Min
Hi-Pot	VRMS	100 Min	Between 1 and 4
Insulation Resistance	M	1000 Min	Between 1 and 4 at 250 VDC
Weight	gm	5 Max
Terminal Strength	lbs	2	2 pounds applied force, Mil-Std-202, Method 211, Condition A
Dielectric Withstanding Voltage	Vrms	100	Mil-Std-202, Method 301
Insulation Resistance	M	1,000	Mil-Std-202, Method 302, Condition B, At 250Vdc
Life (Expectancy "X")	Hrs	10,000 Min	Mil-Prf-21038
Pulse Width	S	2	Mil-Prf-21038, Figure 3 & 4
Overshoot & Ringing	V	1 Max	Mil-Prf-21038, Figure 3 & 4
Droop	%	20% Max	Mil-Prf-21038, Figure 3 & 4
Rise Time	ns	150 Max	Mil-Prf-21038, Figure 3 & 4
Common Mode Rejection	dB	45	Mil-Prf-21038, Figure 2
Operation Temperature	C	-55C to +130C
Packaging	MSL	3	Per JEDEC J-Std-020 and J-Std-033