Datasheet > JA4387-ALB

JA4387-ALB

更新时间： 2024-02-12 15:48:10

品牌	Logo	应用领域
线艺 - COILCRAFT		变压器
页数	文件大小	规格书
1页	194K
描述
SMPS Transformer, ROHS COMPLIANT

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JA4387-ALB 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	ROHS COMPLIANT	Reach Compliance Code：	compliant
ECCN代码：	EAR99	风险等级：	5.61
Is Samacsys：	N	其他特性：	BREADTH & HEIGHT DIM INCLUDE TERMINAL ALSO, TURNS RATIO: 1: 0.25
高度：	11.43 mm	最大输入电压：	57 V
最小输入电压：	33 V	JESD-609代码：	e2
长度：	20.57 mm	安装特点：	SURFACE MOUNT
初级绕组数量：	3	次级绕组数量：	3
最高工作温度：	125 °C	最低工作温度：	-40 °C
输出电压 1：	12 V	输出电压2：	12 V
包装方法：	TAPE & REEL	物理尺寸：	L20.57XB30.0XH11.43 (mm)
初级电感：	75 µH	表面贴装：	YES
端子面层：	Tin/Silver (Sn/Ag)	变压器类型：	SMPS TRANSFORMER
宽度：	30 mm	Base Number Matches：	1

JA4387-ALB 数据手册

Document 816

For TI TPS23754

Flyback Transformers PoE Interface

• Developed for Texas Instruments TPS23754 High Power, High

Efﬁciency PoE Interface and DC/DC Controller

• Input: 33 – 57 V

• 1500 Vrms isolation from primary and bias to secondary

Core material Ferrite

Terminations RoHS tin-silver (96.5/3.5) over tin over nickel over

phos bronze.

Weight 12.0 g

Ambient temperature –40°C to +125°C

Storage temperature Component: –40°C to +125°C.

Tape and reel packaging: –40°C to +80°C

Resistance to soldering heat Max three 40 second reﬂows at

+260°C, parts cooled to room temperature between cycles

Moisture Sensitivity Level (MSL) 1 (unlimited ﬂoor life at <30°C /

85% relative humidity)

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

38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Packaging 175 per 13″ reel Plastic tape: 44 mm wide,

0.4 mm thick, 28 mm pocket spacing, 11.9 mm pocket depth

PCB washing Tested with pure water or alcohol only. For other solvents,

see Doc787_PCB_Washing.pdf

L at0A²LatIpk³

DCR max (Ohms)⁴

Turns ratio⁶

Part

±±0ꢀ

(µH)

min

Leakage L⁵

Ipk³

(A)

number¹

(µH)

pri

sec bias drive max (µH) pri:sec pri:bias pri:drive

Output⁷

JA4372-AL_

JA4387-AL_

67.5

66.0

0.143 0.0045 0.122 0.072

0.077 0.0098 0.096 0.070

3.0

0.756

1 : 0.08 1 : 0.28 1 : 0.16

1 : 0.25 1 : 0.25 1 : 0.15

2.2

3.3 V, 7.6 A

12 V, 2.08 A

1. When ordering, please specify a packaging code:

4. DCR for the primary and the secondary is measured with windings

connected in parallel.

5. Leakage inductance is for the primary, measured with the windings

connected in parallel and the secondary windings shorted.

6. Turns ratio is with the primary windings and secondary windings con-

nected in parallel.

7. Output is with the secondary windings connected in parallel. Output of the

drive winding is 6 V, 10 mA. Output of the bias winding is 11.2 V, 20 mA.

8. Electrical speciﬁcations at 25°C.

JA4387-ALD

Packaging: D = 13″ machine ready reel. EIA-481 embossed plastic

tape (175 parts per full reel).

B = Less than full reel. In tape, but not machine ready.

To have a leader and trailer added ($25 charge), use

code letter D instead.

2. Inductance is measured at 250 kHz, 0.1 Vrms, 0 Adc.

3. Peak primary current drawn at minimum input voltage.

Refer to Doc 362 “Soldering Surface Mount Components” before soldering.

Primary windings and secondary

windings to be connected in parallel

on PC board

inches

Dimensions are in

Document 816 Revised 10/09/13

US +1-847-639-6400 sales@coilcraft.com

UK +44-1236-730595 sales@coilcraft-europe.com

Taiwan +886-2-2264 3646 sales@coilcraft.com.tw

China +86-21-6218 8074 sales@coilcraft.com.cn

Singapore + 65-6484 8412 sales@coilcraft.com.sg

This product may not be used in medical or high

risk applications without prior Coilcraft approval.

Specification subject to change without notice.

Please check web site for latest information.

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