473H04PP481R中文资料
冷却专业分析1安全解压阀类型H系列说明书
Refrigerating Specialties Division1SAFETY RELIEF VALVE Types H2, H3, H4 & H5Sizes 13mm - 32 mm (1/2"- 1¼”)FOR AMMONIA, R-12, R-22, R-502 AND OTHER COMMON REFRIGERANTSFEATURES• High Capacity• Excellent Repeatability• All Stainless Steel Internal Parts• Maximum Temperature 300°F• Unaffected By Vibration• Drain Plug Standard• PTFE Seat BULLETIN 70-01ATYPE HMarch 2002Installation, Service and Parts InformationSingle ValveDual Valvewith ManifoldDescriptionThe Type H High Capacity Safety Relief Valves are designed andconstructed to meet the requirements of ASME Boiler and PressureVessel Code and ANSI/ASHRAE 15-78 Code requirements and bearthe ASME Code Symbol (UV) indicating compliance with these codes.Employing proven principles of design, these Safety Relief Valves arehighly reliable and dependable. Precision machined moving parts ofstainless steel, a PTFE disc and a cadmium plated spring preventsticking due to corrosion or cold welding, to assure valve opening atthe set pressure long after installation. They are not suitable forcorrosive ambient atmospheres such as chlorine, etc. The two-boltflanged bottom inlet affords simple removal and replacement.PurposeSafety Relief Valves should be used to protect each refrigerationsystem pressure vessel that can be isolated by valves. In manylocalities state or municipal codes govern selection and installation ofRelief Valves. Many are patterned after the ASME Boiler and PressureVessel Code and the ANSI/ASHRAE 15-78 Safety Code for MechanicalRefrigeration. Where no compulsory code exists, installation of ReliefValves according to this ANSI/ASHRAE Code is highly recommended.ApplicationThe Type H2 thru H5 valves are for use with Ammonia and Halocarbonrefrigerants in non-corrosive environments. Pressure settings andcapacities apply only when the valve is discharging to atmosphericpressure.Pressure SettingsCodes require valve settings equal to or less than design workingpressure of the vessel protected. The Type H Safety Relief Valves areavailable in six standard settings, from 50 psig to 300 psig in 50 lb.increments. Special settings between 50 psig to 300 psig in 25 lb.increments are also available. To retain the validity of the code symbols,pressure settings and capacity, these valves must be set and sealedat the factory. When required, valves can be returned to the factoryfor verification of setting, or readjustment to the original setting. Nomajor repairs or reconditioning will be done. Contact factory for details.Dual Relief ValvesThe Dual Relief Valve Assembly includes two relief valves and a DualStop Valve. This arrangement permits either valve to be shut offindividually and removed for repairs or inspection. Thus one valve isalways in service as required by most codes. When the stem is in,the right valve is closed, and when the stem is out, the left valveis closed.0501642。
AO4704中文资料
AO4704AO4704SymbolTyp Max 28405475R θJL 2130SymbolTyp Max 36406775R θJL 2530Maximum Junction-to-LeadCSteady-State°C/WParameterUnits Maximum Junction-to-AmbientAt ≤ 10s R θJA °C/W Maximum Junction-to-AmbientASteady-State °C/W °C/W Maximum Junction-to-AmbientASteady-State Thermal Characteristics: Schottky Maximum Junction-to-Lead CSteady-State°C/WThermal Characteristics ParameterUnits Maximum Junction-to-AmbientAt ≤ 10s R θJA °C/W A: The value of R θJA is measured with the device mounted on 1in 2 FR-4 board with 2oz. Copper, in a still air environment with T A =25°C. The value in any given application depends on the user's specific board design. The current rating is based on the t ≤ 10s thermal resistance rating.B: Repetitive rating, pulse width limited by junction temperature.C. The R θJA is the sum of the thermal impedence from junction to lead R θJL and lead to ambient.D. The static characteristics in Figures 1 to 6 are obtained using 80 µs pulses, duty cycle 0.5% max.E. These tests are performed with the device mounted on 1 in 2 FR-4 board with 2oz. Copper, in a still air environment with T A =25°C. The SOA curve provides a single pulse rating.F. The Schottky appears in parallel with the MOSFET body diode, even though it is a separate chip. Therefore, we provide the net forward drop, capacitance and recovery characteristics of the MOSFET and Schottky. However, the thermal resistance is specified for each chip separately.Rev5: August 2005THIS PRODUCT HAS BEEN DESIGNED AND QUALIFIED FOR THE CONSUMER MARKET. APPLICATIONS OR USES AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS ARE NOT AUTHORIZED. AOS DOES NOT ASSUME ANY LIABILITY ARISINGOUT OF SUCH APPLICATIONS OR USES OF ITS PRODUCTS. AOS RESERVES THE RIGHT TO IMPROVE PRODUCT DESIGN,FUNCTIONS AND RELIABILITY WITHOUT NOTICE.AO4704SymbolMin TypMaxUnits BV DSS 30V0.0070.053.2101220I GSS 100nA V GS(th)0.6 1.12V I D(ON)40A 9.111.5T J =125°C13.316.510.513m Ωg FS 3037S V SD 0.450.5V I S5A DYNAMIC PARAMETERS C iss 36564050pF C oss 322pF C rss 168pF R g0.86 1.1ΩSWITCHING PARAMETERS Q g (4.5V)30.536nC Q gs 4.6nC Q gd 8.6nC t D(on) 6.29ns t r 4.87ns t D(off)5575ns t f 7.311ns t rr 20.325ns Q rr8.412.5nCTHIS PRODUCT HAS BEEN DESIGNED AND QUALIFIED FOR THE CONSUMER MARKET. APPLICATIONS OR USES AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS ARE NOT AUTHORIZED. AOS DOES NOT ASSUME ANY LIABILITY ARISING OUT OF SUCH APPLICATIONS OR USES OF ITS PRODUCTS. AOS RESERVES THE RIGHT TO IMPROVE PRODUCT DESIGN,FUNCTIONS AND RELIABILITY WITHOUT NOTICE.Gate resistanceGate Drain Charge Body Diode+Schottky Reverse Recovery ChargeI F =13A, dI/dt=100A/µsBody Diode+Schottky Reverse Recovery Time Turn-Off DelayTime V GS =10V, V DS =15V, R L =1.1Ω, R GEN =0ΩTurn-Off Fall TimeTotal Gate Charge Gate Source Charge I F =13A, dI/dt=100A/µs On state drain currentForward TransconductanceDiode + Schottky Forward Voltage I S =1A,V GS =0VV GS =4.5V, V DS =5V Turn-On DelayTime V GS =10V, V DS =15V, I D =13AV GS =0V, V DS =0V, f=1MHzTurn-On Rise Time Electrical Characteristics (T J =25°C unless otherwise noted)STATIC PARAMETERS Parameter Conditions I DSS mA Gate Threshold Voltage Drain-Source Breakdown Voltage I D =250µA, V GS =0VZero Gate Voltage Drain Current.(Set by Schottky leakage)Gate-Body leakage current V DS =V GS I D =250µA V R =30VV DS =0V, V GS = ±12V R DS(ON)Static Drain-Source On-Resistancem ΩV GS =4.5V, I D =12.2AV GS =10V, ID=13AV R =30V, T J =125°CV R =30V, T J =150°C Reverse Transfer Capacitance V DS =5V, I D =13AOutput Capacitance (FET+Schottky)Maximum Body-Diode + Schottky Continuous CurrentV GS =0V, V DS =15V, f=1MHz Input Capacitance A: The value of R θJA is measured with the device mounted on 1in 2 FR-4 board with 2oz. Copper, in a still air environment with T A =25°C. The value in any given application depends on the user's specific board design. The current rating is based on the t ≤ 10s thermal resistance rating.B: Repetitive rating, pulse width limited by junction temperature.C. The R θJA is the sum of the thermal impedence from junction to lead R θJL and lead to ambient.D. The static characteristics in Figures 1 to 6 are obtained using 80 µs pulses, duty cycle 0.5% max.E. These tests are performed with the device mounted on 1 in 2 FR-4 board with 2oz. Copper, in a still air environment with T A =25°C. The SOA curve provides a single pulse rating.F. The Schottky appears in parallel with the MOSFET body diode, even though it is a separate chip. Therefore, we provide the net forward drop, capacitance and recovery characteristics of the MOSFET and Schottky. However, the thermal resistance is specified for each chip separately Rev5: August 2005.AO4704AO4704。
HH3、4系列负荷开关 说明书
100
200～600
熔断器额定电流(A)
10～20 30
60
100
200～600
熔断体额定电流(A)
10 15 20 30 40 50 60
100
200～600
熔断器型式
瓷插式熔断器
有填料封闭管式熔断器
熔体规格圆铜排mm
0.33 0.44 0.55 0.73 0.92 1.07 1.2 1.22
片状
512±2.25 355±2 205±2
560±2.7 420±2.5 630±3 420±2.5
205±2 205±2
表2 mm
安装尺寸
H
L
φ
160±1.3 275±1.5 8±0.58 250±2 375±1.5 8±0.58
257±2 432±2 9±0.58
302±2 310±2.7
471±2 547±3
一、概述 1.1 用途
HH3.4系列负荷开关(以下简称负荷开关)适用于交流频率50Hz,额定工作电 压至380V，额定工作电流至600A的电路中，可作为手动不频繁地接通与分断有 负载电路，并作过载与短路保护之用。 1.2 工作条件
负荷开关保证在下列条件下可靠地工作： 1.2.1 海拔高度不超过2000m。 1.2.2 周围环境温度不高于+40℃及不低于-5℃,且24小时平均值不超过+35℃； 1.2.3 空气相对湿度在+40℃时不超过50%，在较低的温度下可以有较高的相对 湿度，例如20℃时相对湿度可达90%，并且要考虑由于温度变化而产生的凝露 的消除。 1.2.4 垂直安装于无强烈振动和冲击的场合。 1.2.5 在无爆炸危险及腐蚀气体的场合。 1.2.6 在无雨雪侵袭的地方 1.3 负荷开关的污染等级为3级 1.4 负荷开关的安装类别为Ⅲ类。
HT48R10A资料
HT48R10A-1 8-Bit Microcontroller
Features
· Operating voltage: fSYS=4MHz: 3.3V~5.5V fSYS=8MHz: 4.5V~5.5V
· 21 bidirectional I/O lines (max.) · 1 interrupt input shared with an I/O line · 8-bit programmable timer/event counter with
cycles · 14-bit table read instruction · 4-level subroutine nesting · Bit manipulation instruction · 63 powerful instructions · Low voltage reset function · 24-pin SKDIP/SOP package
In te rn a l RC O SC
O p tio n R O M O T P O n ly
HT48R10A-1
TM R TM R C
M
M
fS Y S
P r e s c a le r U
U
X
X
T M R /P C 1
W D TS W D T P r e s c a le r
PC1
E N /D IS
Rev. 1.20
1
July 2, 2001
元器件交易网
Block Diagram
IN T /P C 0
P ro g ra m ROM
In s tr u c tio n R e g is te r
P ro g ra m C o u n te r
SP481R_485R_cn
1/10 单位负载 RS-485收发器－SP481R/SP485R特性允许超过400个收发器连接到同一条传输线上（1/10单位负载）接收器输入高阻抗（标准值R IN＝150kΩ）半双工配置与工业标准管脚一致共模输入电压范围为-7V～+12V包含关断模式（I CC<10µA）（适用于SP481R）低功耗（250mW）独立驱动器和接收器使能描述SP481R和SP485R与现有的SP485产品管脚对应相同，而且包含更高的ESD保护和高接收器输入阻抗等性能。
接收器输入高阻抗可以使400个收发器接到同一条传输线上又不会引起RS-485驱动器信号的衰减。
各器件封装为8脚塑料DIP或8脚窄SOIC。
SP481R通过使能管脚来提供关断功能，可将电源电流（I CC）降低到0.5µA以下。
典型应用电路绝对最大额定值下面列出的是器件正常工作的额定值，并未涉及器件在这些条件或超出这些条件下的功能操作。
器件不能长时间工作在绝对最大额定值条件下，否则会影响其可靠性。
Vcc…………………………………………………………………………………………………………+7V 贮存温度……………………………………………………………………………………...－65℃～+150℃功耗8脚塑料DIP...……………………………………………………………………………………1000mW 8脚塑料N-SOIC…………………………………………………………………………………1000mW 封装：8脚塑料DIPφ………………………………………………………………………………………………62℃/W JA8脚塑料N-SOICφ………………………………………………………………………………………………62℃/W JA电气特性除非特别说明，典型值在25℃，V＝+5V下测得。
续上表….接收器输入图表测试电路AB图1 驱动器DC 测试负载电路图2 接收器时序测试负载电路图3 驱动器/接收器时序测试电路图4 驱动器时序测试负载＃2电路图5 驱动器传输延迟图6 驱动器使能和禁能时间图7 接收器传输延迟图8 接收器使能和禁能时间概述SP485R是低功耗RS-485差分收发器。
4J49(FeNi46Cr5、47HXP)玻封合金
2.3.2 4J49电阻温度系数 见表2-4。
2.4 4J49磁性能
2.4.1 4J49居里点 Tc=340℃[1,6]。
2.4.2 4J49合金的磁性能 见表2-5[1,2]。
在4000A/m下，剩余磁感应强度Br=0.69T，矫顽力
Hc=27.2A/m[1,2]。
技术顾问：潘工
电话：
4J49/FeNi46Cr5/47HXP
铁镍钴玻封合金4J49
4J49概述
4J49在20～400℃温度范围内，具有与软玻璃相近的膨胀系数，用于与相应的软玻璃匹配封接。该类合金中含有铬，经氧化处理后，合金表面生成非常致密的氧化膜，与基体结合牢固，且与软玻璃浸润性好。因此，能获得高强度的封接面。是电真空工业中的重要封接结构材料。
1.1 4J49材料牌号 4J49。
1.2 4J49相近牌号 见表1-1。
表1-1[1,4]
俄罗斯
美国
日本
法国
德国
47HXP
Carpenter456
-
FeNi46Cr5
Vacovit 465
Vacovit 485
1.3 4J49材料的技术标准 YB/T 5235-1993《铁镍铬、铁镍封接合金技术条件》。
20～600℃
8.6～9.3
9.4～10.1
9.0
9.0
8.9
9.6
10.9
11.4
11.8
2.2 4J49密度 见表2-1。 表2-4[1,2]αR/1来自-3℃-120～50℃
20～100℃
20～200℃
20～300℃
20～400℃
20～500℃
0.95
HM61104R7LFTR7中文资料
Outline Dimensions (mm)
Figure 1 Recommended Solder Pad Layout
Refer to Specifications table for ‘Ht’ dimension of each model.
Figure 2
Recommended Solder Pad Layout
Notes:
Inductance, Lo @1kHz, 0.1V µH ±10%
10 22 47 100 220 470 10 12 15 18 22 27 33 39 47 56 68 82 100 120 150 180 220 270 330 390 470 560 680 820 1000 1200 1500 1800 2200 2700
Marking Code Std LF
05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84
DCR Ω Typ.
0.12 0.26 0.50 1.0 2.2 5.0 0.065 0.07 0.09 0.1 0.11 0.13 0.15 0.18 0.2 0.25 0.28 0.35 0.45 0.5 0.65 0.75 0.95 1.1 1.35 1.6 2 2.4 2.7 3.6 4.3 5.6 6.5 7 9.2 10.5
阀门产品样本国标安全阀
阀门产品样本罗浮阀门集团有限公司目录1、A21型PN16~40外螺纹连接弹簧封闭微启式安全阀 (1)2、A21型PN64~100外螺纹连接弹簧封闭微启式安全阀 (2)3、A21型PN160~320外螺纹连接弹簧封闭微启式安全阀 (3)4、A27H-10、A27H-16型外螺纹连接弹簧带扳手微启式安全阀 (4)5、A28H型PN16外螺纹连接弹簧带扳手全启式安全阀 (5)6、A37H、A43H型PN16~40双联弹簧带扳手微启式安全阀 (6)7、A38Y型PN16~40双联弹簧带扳手全启式安全阀 (8)8、A40Y型PN16~64带散热片弹簧封闭全启式安全阀 (10)9、A41H、A41Y型PN16~100弹簧封闭微启式安全阀 (12)10、A41Y型PN160~320弹簧封闭微启式安全阀 (15)11、A42F 、A42Y、KA42Y（抗硫）型PN16~100弹簧封闭全启式安全阀 (17)12、42Y型PN160~320弹簧封闭全启式安全阀 (21)13、WA42Y型PN16~40波纹管弹簧全启式安全阀 (22)14、A44Y型PN16~100弹簧封闭带扳手全启式安全阀 (22)15、A44Y型PN160~320弹簧封闭带扳手全启式安全阀 (26)16、A47H型PN16~40弹簧带扳手微启式安全阀 (27)17、A48Y型PN16~100弹簧带扳手全启式安全阀 (29)18、A48SH型PN16~40弹簧带扳手全启式安全阀 (32)19、A48SH型PN64~160高温高压弹簧带扳手全启式安全阀 (34)20、A42Y-P5545V、A62Y-P55 140V型气控碟形弹簧安全阀 (36)21、A68Y型对焊连接弹簧全启式安全阀 (37)22、A49H-40型主安全阀及配套GA49H-40型冲量安全阀 (38)23、A49Y-100、A49Y-100V型主安全阀及其配套冲量安全阀 (40)24、A69Y-P54140V型DN100主安全阀及其配套冲量安全阀 (42)25、A69Y-100、A69Y-100V型DN150主安全阀及其配套冲量安全阀 (43)26、GA41H型PN16~40杠杆式安全阀 (44)27、GA42H型PN16~100单杠杆式安全阀 (45)28、GA44H型PN16~64双杠杆式安全阀 (47)29、A411F-25、A412F-25、NA42F-25型内装式安全阀 (48)30、JA22H-2.5、JA22W-2.5P型外螺纹连接静重式安全阀 (50)31、FA72W型PN10真空负压安全阀 (51)32、AH42F型平衡式安全回流阀 (52)33、A61型弹簧微启式安全阀 (53)34、AY42H PN400型、LA802Y-600型安全溢流阀 (55)35、石化专用安全阀 (57)36、AQ-20型空压机安全阀 (58)37、LFA46F型先导式安全阀系列 (59)1、A21型PN16～40外螺纹连接弹簧封闭微启式安全阀使用范围：本产品可用于石油、化工行业。