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Introduction
Specifications
Environmental
Performance curves
Schematics
Physical characteristics
Tape & Reel
Soldering/Washing

3D Model Datasheet

HTX7045 Isolation Transformers

The HTX7045 introduces a chip-style construction that represents an advancement over traditional core and bobbin designs. This innovative approach not only reduces the size of the component, but also streamlines it for highly automated manufacturing process, resulting in a more cost-effective solution. The HTX7045 is particularly well suited for use in gate drive circuits and isolated SPI communication in both industrial and automotive applications.

4K VDC Hi-Pot ideal for isolated SPI communication and gate drive applications
Applications include Battery Management Systems and Industrial Networking
4.9 mm creepage and clearance Material Group 1 (CTI > 600)
- Insulation level may be Functional, Basic, or Reinforced depending on application variables such as working voltage, pollution degree, OVC, and altitude. Please contact Coilcraft for full details.
Reduced board space compared to traditional core and bobbin types
Cost-effective and fully-automated for the highest quality
AEC-Q200 Grade 1 (–40°C to +125°C)

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Part number

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Count	Unit price
1	$3.42
100	$2.79
350	$2.09
700	$1.26
1000	$0.98

For high volume or non-stock items, request a quote.

Termination

R = Tin over nickel over silver glass frit

Packaging

C = 7" machine-ready reel

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Specifications

Electrical specifications at 25°C.

Part number 1 (Hover for schematics)	Inductance at 0A (µH) 2 (Tolerance: ±25%)	DCR max (Ω)		Leakage Inductance max (µH) 3	Turns Ratio	Capacitance max (pF) 4	Volt-time product (V-µs)	Isolation Voltage (Vrms) 5
Part number 1 (Hover for schematics)	Inductance at 0A (µH) 2 (Tolerance: ±25%)	Pri	Sec	Leakage Inductance max (µH) 3	Pri : Sec	Capacitance max (pF) 4	Volt-time product (V-µs)	Isolation Voltage (Vrms) 5
HTX7045-104CR_	100	0.46	0.80	0.60	1 : 2	18	38.8	2800
HTX7045-184AR_	180	0.55	0.55	1.00	1 : 1	20	51.8	2800

Notes

When ordering, please specify turns ratio and packaging codes: e.g. HTX7045-184ARC
Turns ratio: A = 1 : 1, C = 1 : 2
Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc.
Leakage inductance measured at 100 kHz, 0.1 Vrms with secondary pins shorted.
Capacitance measured from pin 1 to pin 3, 250 KHz, 0.1 Vrms.
2800 Vrms, 4000 VDC; one minute isolation (hipot) measured between primary and secondary.

Termination:

RoHS compliant tin over nickel over silver glass frit.

Packaging:

C = 7" machine-ready reel
EIA 481 embossed plastic tape (350 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
D = 13" machine-ready reel
EIA 481 embossed plastic tape. Factory order only, not stocked (1500 parts per full reel).

Environmental

Environmental:

RoHS compliant , halogen free

Ambient temperature range:

−40°C to +125°C

Storage temperature range:

Component: −40°C to +125°C
Tape and reel packaging: −40°C to +80°C

Maximum part temperature:

+125°C

Failures in Time (FIT) / Mean Time Between Failures (MTBF):

See FIT/MTBF Calculations

Performance curves

Insertion Loss

Return Loss

Schematics

Physical characteristics

Tape and Reel specification

Parts per reel		Reel dimensions (mm)					Tape dimensions (mm)						Orientation
7" (178 mm)	13" (330 mm)	A	B	C	D	E	W	P	Po	P1	H	T
350	1500*	178/330	60/100	13	22,4	16,4	16	8	4	2	5,5	0,40

* Special order

General specification

Core Material:

Ferrite

Weight:

0.53 − 0.54 g

Packaging:

350/7" reel; 1500/13" reel Plastic tape: 16 mm wide, 0.4 mm thick, 8 mm pocket spacing, 5.5 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):

1 (unlimited floor life at <30°C / 85% relative humidity)

Resistance to soldering heat:

Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles.

Refer to Soldering Coilcraft Components before soldering.

PCB Washing:

Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

HTX7045 Isolation Transformers