电子线束填充无机阻燃剂，其机械强度、断裂伸长率都比非阻燃聚烯烃护套料要差得多。阻燃聚烯烃护套料的机械强度较低，常用的阻燃聚烯烃护套料的氧指数为25 - 28.阻燃效果并不很好，仅适合于在温度较低、适当移动或弯曲、阻燃要求不太高的场合应用，不适合于在高阻燃性要求的电子线束中应用。无卤、低烟阻燃聚烯烃护套料的阻燃性和燃烧时成炭性都比较好，适用于无卤、低烟、阻燃性能要求高的电子线束中。

以下是对HRS DF51系列电子线的分析

DF51系列DF51-3P-2DS电子线I连接器
    2mm Pitch, Positive Lock Wire-to-Board Connector
特点                         
   1. Wide variation
   2. Positive lock provides clear tactile click and secures relable connection
   3. Secure Side-locking design
   4. Prevents incorrect mating
   5. Use common terminals and crimping tools with DF11 Series
   6. Suitable for potting
   7. UL, C-UL Certified



本系列的产品列表明细：

Part Number	Part Number	Part Number
DF51-10DEP-2C	DF51-6DEP-2C	DF51A-24DP-2DSA
DF51-10DS-2C	DF51-6DP-2DS(20)	DF51A-24DP-2DSA(01)
DF51-12DEP-2C	DF51-6DP-2DS(50)	DF51A-26DP-2DS(20)
DF51-12DS-2C	DF51-6DS-2C	DF51A-26DP-2DS(50)
DF51-14DEP-2C	DF51-6EP-2C	DF51A-26DP-2DSA
DF51-14DS-2C	DF51-6S-2C	DF51A-26DP-2DSA(01)
DF51-16DEP-2C	DF51-8DEP-2C	DF51A-28DP-2DS(20)
DF51-16DS-2C	DF51-8DS-2C	DF51A-28DP-2DS(50)
DF51-18DEP-2C	DF51A-10DP-2DS(20)	DF51A-28DP-2DSA
DF51-18DS-2C	DF51A-10DP-2DS(50)	DF51A-28DP-2DSA(01)
DF51-20DEP-2C	DF51A-10DP-2DSA	DF51A-2P-2DSA
DF51-20DS-2C	DF51A-10DP-2DSA(01)	DF51A-2P-2DSA(01)
DF51-22DEP-2C	DF51A-12DP-2DS(20)	DF51A-30DP-2DS(20)
DF51-22DS-2C	DF51A-12DP-2DS(50)	DF51A-30DP-2DS(50)
DF51-10DEP-2C	DF51A-12DP-2DSA	DF51A-30DP-2DSA
DF51-10DS-2C	DF51A-12DP-2DSA(01)	DF51A-30DP-2DSA(01)
DF51-10DEP-2C	DF51A-14DP-2DS(20)	DF51A-3P-2DSA
DF51-10DS-2C	DF51A-14DP-2DS(50)	DF51A-3P-2DSA(01)
DF51-12DEP-2C	DF51A-14DP-2DSA	DF51A-4DP-2DSA
DF51-12DS-2C	DF51A-14DP-2DSA(01)	DF51A-4DP-2DSA(01)
DF51-14DEP-2C	DF51A-16DP-2DS(20)	DF51A-4P-2DS(20)
DF51-14DS-2C	DF51A-16DP-2DS(50)	DF51A-4P-2DS(50)
DF51-16DEP-2C	DF51A-16DP-2DSA	DF51A-4P-2DSA
DF51-16DS-2C	DF51A-16DP-2DSA(01)	DF51A-4P-2DSA(01)
DF51-18DEP-2C	DF51A-18DP-2DS(20)	DF51A-5P-2DS(20)
DF51-18DS-2C	DF51A-18DP-2DS(50)	DF51A-5P-2DS(50)
DF51-20DEP-2C	DF51A-18DP-2DSA	DF51A-5P-2DSA
DF51-20DS-2C	DF51A-18DP-2DSA(01)	DF51A-5P-2DSA(01)
DF51-22DEP-2C	DF51A-20DP-2DS(20)	DF51A-6DP-2DSA
DF51-22DS-2C	DF51A-20DP-2DS(50)	DF51A-6DP-2DSA(01)
DF51-10DEP-2C	DF51A-20DP-2DSA	DF51A-6P-2DS(20)
DF51-10DS-2C	DF51A-20DP-2DSA(01)	DF51A-6P-2DS(50)
DF51-12DEP-2C	DF51A-22DP-2DS(20)	DF51A-6P-2DSA
DF51-12DS-2C	DF51A-22DP-2DS(50)	DF51A-6P-2DSA(01)
DF51-14DEP-2C	DF51A-22DP-2DSA	DF51A-8DP-2DS(20)
DF51-14DS-2C	DF51A-22DP-2DSA(01)	DF51A-8DP-2DS(50)
DF51-16DEP-2C	DF51A-24DP-2DS(20)	DF51A-8DP-2DSA
DF3-15P-2DS(01)	DF50K-2830SCFA	DF3EA-11P-2H(51)
DF3-15P-2DSA(01)	DF50S-20DS-1C	DF3EA-11P-2V(21)
DF3-15S-2C	DF50S-20DS-1C(15)	DF3EA-11P-2V(51)
DF3-15S-2DSA(25)	DF50S-30DS-1C	DF3EA-12P-2H(21)
DF3-15S-2DSA(55)	DF50S-30DS-1C(15)	DF3EA-12P-2H(51)
DF3-22SC	DF50S-40DS-1C	DF3EA-12P-2V(21)
DF3-22SCC	DF50S-40DS-1C(15)	DF3EA-12P-2V(51)
DF3-22SCF	DF50S-50DS-1C	DF3EA-13P-2H(21)
DF3-22SCFC	DF3A-4P-2DSA	DF3EA-13P-2H(51)
DF3-2428S2-24A9-300(05)	DF3A-4P-2DSA(10)	DF3EA-13P-2H(54)
DF3-2428SC	DF3A-5P-2DS	DF3EA-13P-2V(21)
DF3-2428SCC	DF3A-5P-2DSA	DF3EA-13P-2V(51)
DF3-2428SCF	DF3A-5P-2DSA(14)	DF3EA-14P-2H(21)
DF3-2428SCFC	DF3A-6P-2DS	DF3EA-14P-2H(51)
DF3-2428SCFC(07)	DF3A-6P-2DSA	DF3EA-14P-2V(21)
DF3-2EP-2A	DF3A-6P-2DSA(10)	DF3EA-14P-2V(51)
DF3-2EP-2C	DF3A-7P-2DS	DF3EA-15P-2H(21)
DF3-2P-2DS(01)	DF3A-7P-2DSA	DF3EA-15P-2H(51)
DF3-2P-2DS(22)	DF3A-7P-2DSA(10)	DF3EA-15P-2H(54)
DF3-2P-2DSA(01)	DF3A-7P-2DSA(16)	DF3EA-15P-2V(21)
DF3-2S-2C	DF3A-8P-2DS	DF3EA-15P-2V(51)
DF3-2S-2C(10)	DF3A-8P-2DSA	DF3EA-2P-2H(21)
DF3-2S-2C(16)	DF3A-9P-2DS	DF3EA-2P-2H(24)
DF3-2S-2C(18)	DF3A-9P-2DSA	DF3EA-2P-2H(51)
DF3-2S-2DSA(25)	DF3AA-10EP-2C	DF3EA-2P-2V(21)
DF3-2S-2DSA(55)	DF3AA-11EP-2C	DF3EA-2P-2V(24)
DF3-3EP-2A	DF3AA-12EP-2C	DF3EA-2P-2V(51)
DF3-3EP-2C	DF3AA-13EP-2C	DF3EA-2P-2V(54)
DF3-3P-2DS(01)	DF3AA-14EP-2C	DF3EA-3P-2H(21)
DF3-3P-2DSA(01)	DF3AA-15EP-2C	DF3EA-3P-2H(24)
DF3-3P-2DSA(30)	DF3AA-2EP-2C	DF3EA-3P-2H(51)
DF3-3S-2C	DF3AA-3EP-2C	DF3EA-3P-2V(21)
DF3-3S-2C(10)	DF3AA-4EP-2C	DF3EA-3P-2V(51)
DF3-3S-2C(18)	DF3AA-5EP-2C	DF3EA-3P-2V(54)
DF3-3S-2DSA(25)	DF3AA-6EP-2C	DF3EA-4P-2H(21)
DF3-3S-2DSA(55)	DF3AA-7EP-2C	DF3EA-4P-2H(24)
DF3-4EP-2A	DF3AA-8EP-2C	DF3EA-4P-2H(51)
DF3-4EP-2C	DF3AA-9EP-2C	DF3EA-4P-2H(54)
DF3-4P-2DS(01)	DF3E-10P-2H(21)	DF3EA-4P-2V(21)
DF3-4P-2DSA(01)	DF3E-10P-2H(24)	DF3EA-4P-2V(24)
DF3-4S-2C	DF3E-10P-2H(54)	DF3EA-4P-2V(51)
DF3-4S-2C(10)	DF3E-10P-2V(21)	DF3EA-5P-2H(21)
DF3-4S-2DSA(25)	DF3E-10P-2V(24)	DF3EA-5P-2H(51)
DF3-4S-2DSA(55)	DF3E-10P-2V(51)	DF3EA-5P-2V(21)
DF3-5EP-2A	DF3E-10P-2V(54)	DF3EA-5P-2V(51)
DF3-5EP-2C	DF3E-11P-2V(21)	DF3EA-6P-2H(21)
DF3-5P-2DS(01)	DF3E-12P-2V(24)	DF3EA-6P-2H(51)
DF3-5P-2DSA(01)	DF3E-12P-2V(54)	DF3EA-6P-2V(21)
DF3-5S-2C	DF3E-14P-2H(24)	DF3EA-6P-2V(24)
DF3-5S-2DSA(25)	DF3E-15P-2H(51)	DF3EA-6P-2V(51)
DF3-5S-2DSA(55)	DF3E-15P-2V(54)	DF3EA-6P-2V(54)
DF3-6EP-2A	DF3E-2428SCF	DF3EA-7P-2H(21)
DF3-6EP-2C	DF3E-2428SCFC	DF3EA-7P-2H(51)
DF3-6P-2DS(01)	DF3E-2P-2H(21)	DF3EA-7P-2V(21)
DF3-6P-2DSA(01)	DF3E-2P-2H(24)	DF3EA-7P-2V(24)
DF3-6S-2C	DF3E-2P-2H(51)	DF3EA-7P-2V(51)
DF3-6S-2DSA(25)	DF3E-2P-2H(54)	DF3EA-8P-2H(21)
DF3-6S-2DSA(55)	DF3E-2P-2V(21)	DF3EA-8P-2H(51)
DF3-7EP-2A	DF3E-2P-2V(24)	DF3EA-8P-2H(54)
DF3-7EP-2C	DF3E-2P-2V(51)	DF3EA-8P-2V(21)
DF3-7P-2DS(01)	DF3E-2P-2V(54)	DF3EA-8P-2V(51)
DF3-7P-2DSA(01)	DF3E-3P-2H(21)	DF3EA-9P-2H(21)
DF3-7S-2C	DF3E-3P-2H(24)	DF3EA-9P-2H(51)
DF3-7S-2C(10)	DF3E-3P-2H(54)	DF3EA-9P-2V(21)
DF3-7S-2C(16)	DF3E-3P-2V(21)	DF3EA-9P-2V(51)
DF3-7S-2DSA(25)	DF3E-3P-2V(24)	DF3E-4P-2H(54)
DF3-7S-2DSA(55)	DF3E-3P-2V(51)	DF3E-4P-2V(21)
DF3-8EP-2A	DF3E-3P-2V(54)	DF3E-4P-2V(24)
DF3-8EP-2C	DF3E-4P-2H(21)	DF3E-4P-2V(51)
DF3-8P-2DS(01)	DF3E-4P-2H(24)	DF3E-4P-2V(54)
DF3-8P-2DSA(01)	DF3E-4P-2H(51)	DF3E-5P-2H(24)
DF1B-20DES-2.5RC	DF1B-8DP-2.5DS(01)	DF1BZ-26DP-2.5DS
DF1B-20DP-2.5DS(01)	DF1B-8DP-2.5DSA(01)	DF1BZ-26DP-2.5DSA
DF1B-20DP-2.5DSA(01)	DF1B-8DS-2.5RC	DF1BZ-28DP-2.5DS
DF1B-20DS-2.5RC	DF1B-8EP-2.5RC	DF1BZ-28DP-2.5DSA
DF1B-20P-2.5DS(01)	DF1B-8ES-2.5RC	DF1BZ-2P-2.5DS
DF1B-20P-2.5DSA(01)	DF1B-8P-2.5DS(01)	DF1BZ-2P-2.5DSA
DF1B-20S-2.5R	DF1B-8P-2.5DSA(01)	DF1BZ-30DP-2.5DS
DF1B-22DEP-2.5RC	DF1B-8S-2.5R	DF1BZ-30DP-2.5DSA
DF1B-22DES-2.5RC	DF1B-9EP-2.5RC	DF1BZ-34DP-2.5DS
DF1B-22DP-2.5DS(01)	DF1B-9ES-2.5RC	DF1BZ-34DP-2.5DSA
DF1B-22DP-2.5DSA(01)	DF1B-9P-2.5DSA(01)	DF1BZ-36DP-2.5DS
DF1B-22DS-2.5RC	DF1B-9S-2.5R	DF1BZ-36DP-2.5DSA
DF1B-2428PC	DF1B-R24	DF1BZ-3P-2.5DS
DF1B-2428PCF	DF1B-R24A(06)	DF1BZ-3P-2.5DSA
DF1B-2428SC	DF1B-R24F	DF1BZ-40DP-2.5DS
DF1B-2428SCA	DF1B-R24FA(06)	DF1BZ-40DP-2.5DSA
DF1B-2428SCF	DF1B-R26	DF1BZ-4DP-2.5DS
DF1B-2428SCFA	DF1B-R26A(06)	DF1BZ-4DP-2.5DSA
DF1B-2428SCFA(05)	DF1B-R26F	DF1BZ-4P-2.5DS
DF1B-24DEP-2.5RC	DF1B-R26FA(06)	DF1BZ-4P-2.5DSA
DF1B-24DES-2.5RC	DF1B-R28	DF1BZ-5P-2.5DS
DF1B-24DP-2.5DS(01)	DF1B-R28A(06)	DF1BZ-5P-2.5DSA
DF1B-24DP-2.5DSA(01)	DF1B-R28F	DF1BZ-6DP-2.5DS
DF1B-24DS-2.5RC	DF1B-R28FA(06)	DF1BZ-6DP-2.5DSA
DF1B-24PR	DF1B-T2428HR	DF1BZ-6P-2.5DS
DF1B-24PRF	DF1B-T2428PHR	DF1BZ-6P-2.5DSA