DS1608B Series

Backlight Inductors

We will continue to manufacture and support the DS1608B indefinitely, however for new designs, we recommend the LPS4018, MSS7341 or MSS1038 as alternatives.These series are more cost effective and offer better current handling.

DS1608B LPS4018 MSS7341 MSS1038

Specially engineered for demanding backlighting applications
High breakdown voltage and exceptional efficiency
Electroplated gold (<50 µin) over nickel over moly-manganese terminations

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Part number

Find my part

Count	Unit price
1	$1.35
750	$1.09
1500	$0.83
3000	$0.67
6000	$0.58

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

Tolerance

M = 20%

Termination

L = Gold over nickel over moly-manganese

Packaging

C = 7" machine-ready reel

. in stock, ready to ship today.

Designer's Kit:

Kit	Values	Price
C334	13 (3 of each)	$40.00

Specifications

Electrical specifications at 25°C.

Part number 1	Inductance (mH) 2 (Tolerance: ±20%)	DCR max (Ω) 3	SRF typ (MHz)	Irms (mA) 4
Part number 1	Inductance (mH) 2 (Tolerance: ±20%)	DCR max (Ω) 3	SRF typ (MHz)	Irms (mA) 4
DS1608B-104ML_	0.100	0.95	12.0	220
DS1608B-154ML_	0.15	1.4	10.0	200
DS1608B-224ML_	0.22	1.7	8.0	180
DS1608B-334ML_	0.33	2.2	6.0	160
DS1608B-474ML_	0.47	3.8	5.0	140
DS1608B-684ML_	0.68	4.9	4.0	120
DS1608B-105ML_	1.0	9.0	2.0	100
DS1608B-155ML_	1.5	11.0	1.0	80
DS1608B-225ML_	2.2	19.0	1.0	50
DS1608B-335ML_	3.3	24.0	1.0	40
DS1608B-475ML_	4.7	30.0	1.0	30
DS1608B-685ML_	6.8	56.0	1.0	20
DS1608B-106ML_	10	74.0	1.0	10

Notes

When ordering, please specify termination and packaging codes: e.g. DS1608B-105MLC
Inductance tested at 100 kHz, 0.1 Vrms.
DCR measured at 25°C. For other operating temperatures, use this DCR at Temperature calculator.
Irms: Current that causes a 30°C temperature rise from 25°C ambient.This information is for reference only and does not represent absolute maximum ratings. Temperature derating curves.

Termination:

L = Gold over nickel over moly-manganese.
T = RoHS tin-silver-copper (95.5/4/0.5). (Special order, added cost)
S = non-RoHS tin-lead (63/37). (Special order, added cost)

Packaging:

C = 7″ machine-ready reel. EIA-481 embossed plastic tape (750 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge).
B = Less than full reel. In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to C.
D = 13″ machine-ready reel. EIA-481 embossed plastic tape (2500 parts per full reel).

Environmental

Environmental:

RoHS compliant

Ambient temperature range:

–40°C to +85°C with Irms current, +85°C to +115°C with derated current

Storage temperature range:

Component: −40°C to +115°C
Tape and reel packaging: −40°C to +80°C

Maximum part temperature:

+115°C (Ambient + temperature rise)

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

See FIT/MTBF Calculations

Performance curves

Inductance vs. Current

Irms Derating

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	or
750	2500*	178/330	60/100	13	18,4	12,4	12	8	4	2	3,0	0,28	or

* Special order
‡ Dot or number marking does not indicate polarity

General specification

Core Material:

Ferrite

Weight:

0.14 - 0.16 mg

Packaging:

750/7″ reel; 2500/13″ reel Plastic tape: 12 mm wide, 0.28 mm thick, 4 mm pocket spacing, 3 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.

DS1608B Series

Backlight Inductors