BW2F-390JT datasheet, PDF - EEWORLD Datasheet

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BW2F-390JT: DescriptionFixed Resistor - Fusible, 2W, 39ohm, 5% +/-Tol, 200ppm/Cel, Through Hole Mount, AXIAL LEADED; CategoryPassive components The resistor; File Size65KB，1 Pages; ManufacturerRCD Components Inc.; Websitehttp://www.rcdcomponents.com/

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BW2F-390JT Overview

Fixed Resistor - Fusible, 2W, 39ohm, 5% +/-Tol, 200ppm/Cel, Through Hole Mount, AXIAL LEADED

BW2F-390JT Parametric

Parameter Name	Attribute value
Objectid	1733981490
package instruction	AXIAL LEADED
Reach Compliance Code	compliant
YTEOL	6.85
Other features	FLAMEPROOF
structure	Flameproof
Lead diameter	0.8 mm
Lead length	26 mm
Installation features	THROUGH HOLE MOUNT
Number of terminals	2
Maximum operating temperature	165 °C
Minimum operating temperature	-55 °C
Package diameter	4.1 mm
Package length	11.4 mm
Package shape	TUBULAR PACKAGE
Package form	Axial
method of packing	TR
Rated power dissipation(P)	2 W
resistance	39 Ω
Resistor type	FIXED RESISTOR - FUSIBLE
surface mount	NO
technology	METAL OXIDE FILM
Temperature Coefficient	200 ppm/°C
Terminal shape	WIRE
Tolerance	5%
Operating Voltage	300 V

BW2F-390JT Preview

FUSIBLE FILM RESISTORS,

GENERAL PURPOSE 1/8 WATT to 3 WATT

RESISTORS CAPACITORS COILS DELAY LINES

BW/MBW SERIES

RoHS

Term.W is

RoHS

compliant

& 260°C

compatible

BW Series - Axial Lead

MBW Series - SM MELF

Industry’s widest selection of fusible film resistors -

1/8W to 3W, .1Ω to 24KΩ, 1% to 5%, leaded & surface mount

Low cost, quick delivery (available on

SWIFT

program)

Flameproof (UL94V0), surface-mount versions available

Low Cost Circuit Protection!

RCD pioneered fusible film resistors in the early 1970’s as a

low cost approach to circuit protection in case of overload or

component failure. The component is designed to act as a

conventional resistor under normal operating conditions, but

open quickly under fault conditions. Series BW meets the

requirements of EIA RS-325 and can be useful in eliminating

circuit board damage and fire hazards. Standard fusing

characteristics can be altered to customer requirements.

OPTIONS

Modified fusing characteristics (fast blow, slow blow, etc.)

Increased pulse capability (Option P)

Dozens of additional options are available...

Mil-spec screening/burn-in, special marking, non-standard

values, custom lead forming, increased power or voltage, etc.

Customized components are an RCD specialty!

←

→←

→

↓

↑

↓

←

→

MBW

↓

Dimensions BW Series (Axial Lead)

RCD Type

BW1/8F

BW1/4F, MBW1/4F

BW1/2F, MBW1/2F

BW1/2FS, MBW1/2FS

BW1F, MBW1FS

BW2F, MBW2F

BW3F, MBW3F

Dimensions MBW (MELF)

(Min.)

± .012[.3]

(Max.)

N/A

.118 [3]

.197 [5]

.040 [1]

.080 [2]

.154 [3.9] .060 [1.5]

(Min.)

Wattage Resistance

Rating

Range

1/8W

1/4W

1/2W

1.0W

2.0W

3.0W

Voltage

Rating

1, 2

200V

250V

300V

350V

± .032 [.8]

.145 [3.7]

.250 [6.4]

.354 [9.0]

.250 [6.4]

.375 [9.5]

.450 [11.4]

1/2

± .024 [.6]

.067 [1.7]

.090 [2.3]

.128 [3.3]

.090 [2.3]

.135 [3.4]

.162 [4.1]

±.003 [.07]

1Ω to 10K

0.1

Ω

to 10K

0.1

Ω

to 24K

0.2

Ω

to 20K

0.1

Ω

to 24K

0.1

Ω

to 24K

0.1

Ω

to 24K

.020 [.5] 1.00 [25]

.022 [.55] 1.02 [26] .256 [6.5]

.025 [.6] 1.02 [26] .374 [9.5]

.022 [.55] 1.02 [26] .256 [6.5]

.026 [.65] 1.02 [26] .374 [9.5]

.031[.8]

1.02 [26] .441[ 11.2]

.60±.062[15.2±1.6] .22±.032[5.6±.8]

1.37 [35] .598 [15.2] .220 [5.6]

Expanded range available

Maximum working voltage is determined by E = (PR) , E should not exceed value listed.

FUSING CHARACTERISTICS

FUSING TIME (SECONDS, TYP.)

1/2F, FS

1F, 1FS

1/8F

100

APPLIED POWER (WATTS)

APPLICATION NOTES:

1. Fault level must be suitable to safely open the resistor quickly, especially surface mount

MBW models. If insufficent, the resistor may reach elevated temp. For this reason, the

fusing overload must be relatively large compared to rated W, 20 to 50x is common for

most axial-lead applications, 40 to 100x for most SM circuits. SM fusing times vary due to

mounting geometry/materials, so each application needs to be evaluated by user. The fault

condition must be at least equal to the minimum W indicated in each of the above curves,

and preferably double for SM applications. Fusing may still occur at W levels below the

levels graphed above but not consistently (fast-blow models available). Don’t exceed volt

rating or 200x W rating, whichever is less (increased levels available).

2. For customized models, complete RCD’s Fuse Questionnaire or advise the desired fusing

wattage or current, min.& max. blow time, continuous wattage, ambient temp., pulse

conditions, physical constraints, voltage to be interrupted, frequency, etc.

3. Maintain clearance from any heat-sensitive or flammable materials.

4. Fusing times vary depending on resistance value. Typical fusing times are given above

for 1Ω - 3.9K. Low values tend to fuse slower. Consult factory for assistance.

5. Residual resis. is

≥50x

initial value after fusing at 20x rated W (30x for BW1/8F & MBW)

6. Verify selection by evaluating under the full range of fault conditions. Place resistors

inside a protective case when testing.

TYPICAL PERFORMANCE

Temperature Coefficient

Load Life Stability

Operating Temp. Range

Power Derating

Dielectric Strength

200ppm/°C

-55 to +165°C

0.71%/°C >25°C

500V (300V BW1/8F)

P/N DESIGNATION:

BW1F

RCD Type

Options

(leave blank if standard)

1/4F

↑

Inch [mm]

↑

- 101 J T W

Resis.Code 1%:

3 signif. figures & multiplier,

(R100=.1Ω,1R00=1Ω,10R0=10Ω,1000=100Ω, etc.)

Resis.Code 2%-10%:

2 signif. figures & multiplier,

(R10=0.1Ω, 1R0=1Ω, 100=10Ω, 101=100Ω, etc.)

Tolerance:

J=5% (std.) G=2%, F=1%

Packaging:

B=Bulk, T=Tape & Reel

Termination:

W = Lead-free, Q = Tin/Lead

(leave blank if either acceptable)

RCD Components Inc,

520 E.Industrial Park Dr, Manchester, NH, USA 03109

rcdcomponents.com

Tel: 603

669

0054 Fax: 603

669

5455 Email:sales@rcdcomponents.com

FA037D Sale of this product is in accordance with GF-061. Specifications subject to change without notice.

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