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Line Protection Modules
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With their increased functionality, today’s telecommunication circuits are much more susceptible to damage caused by outside transients than previous designs. Bourns® Line Protection Modules (LPMs) provide protection for these circuits against disturbances caused by lightning and power cross. Bourns® LPMs are designed to survive a disturbance, and if necessary fail safely, while protecting downstream components from damage.

Bourns® LPMs typically include a pair of resistors with intregal thermal fuses, which provide current limiting in a circuit protection scheme. The resistors are closely matched, so as not to impact circuit function. The unique construction of Bourns® LPMs allows them to dissipate high-energy transients with little change in performance.

When combined with overvoltage protection, such as Bourns® TISP® Thyristor Surge Protectors , Bourns® LPMs provide the necessary protection required to meet Bellcore, ITU, and UL specifications.

Bourns offers Telecom Design Kits that include this product line.

Conflict Mineral Source Reporting for Line Protection Modules, SEMS: CMRT

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Series Data Sheet Photo Device Symbol Applications Standards Description Design Files Engineering Buy Now
4A12P-1AH-12R5 4A12P-1AH-12R5 4a12p_1ah_12r5 4a12p_1ah_12r5_schem Customer Premise Equipment, Central Office GR-1089-CORE Downloads Buy
4A12P-506 4A12P-506 lpm-pic4 lpm_3 Customer Premise Equipment, Central Office ITU-T K.20 Quad resistor plus thermal fuses Downloads Buy
4A12P-516 4A12P-516 lpm-pic4 4a12p506 Customer Premise Equipment, Central Office ITU-T K.20 Quad resistor plus thermal fuses Downloads Buy
4B04B-501-XXX 4B04B-501-XXX lpm-pic1 lpm_4 Customer Premise Equipment, Central Office GR-1089-CORE Dual resistor Downloads Buy
4B04B-502-XXX 4B04B-502-XXX 4b04b_502_xxx lpm5 Customer Premise Equipment, Central Office GR-1089-CORE Single resistor plus fuse Downloads Buy
4B04B-523-XXX 4B04B-523-XXX 4b04b_523_rc 4b04b_523_rc_schematic Customer Premise Equipment, Central Office GR-1089-CORE Matched pair of resistors Downloads Buy
4B04B-524-XXX 4B04B-524-XXX 4b06b_524_rc 4bo4b524 Customer Premise Equipment, Central Office GR-1089-CORE Dual resistor plus fuses Downloads Buy
4B06B-504-RC 4B06B-504-RC 4b06b_504_500 4b06b_504_rc_schematic Customer Premise Equipment, Central Office ITU-T K.20 Dual resistors plus PTCs Buy
4B06B-512-XXX 4B06B-512-XXX 4b06b_512_xxx 4bo6b512 Customer Premise Equipment, Central Office GR-1089-CORE Dual resistor plus fuses Downloads Buy
4B06B-514-XXX 4B06B-514-XXX 4b06b_514_xxx 4bo6b514 Customer Premise Equipment, Central Office ITU-T K.20 Dual resistors plus PTCs Downloads Buy
4B06B-540-VBO1/VBO2 4B06B-540-VBO1/VBO2 4B06B-DF1-VB01_VB02_part 4bo6b540 Customer Premise Equipment, Central Office GR-1089-CORE Dual resistor plus fuses + overvoltage thyristors Downloads Buy
(4B06B-540-VBO1)

Buy
(4B06B-540-VBO2)
4B06B-DF1-VBO1/VBO2 4B06B-DF1-VBO1/VBO2 4B06B-DF1-VB01_VB02_part 4bo6b540 Customer Premise Equipment, Central Office GR-1089-CORE Dual resistor plus fuses + overvoltage thyristors Buy
(4B06B-DF1-VBO1)

Buy
(4B06B-DF1-VBO2)
4B06B-DR1-12R5 4B06B-DR1-12R5 4B06B_DR1_12R5_part 4B06B_DR1_12R5_schem Customer Premise Equipment, Central Office GR-1089-CORE Dual resistor plus fuses Buy
4B08B-503-XXX 4B08B-503-XXX 4b08b_503_xxx lpm_503 Customer Premise Equipment, Central Office ITU-T K.20 Dual resistor plus fuses Downloads Buy
4B08B-513-RC 4B08B-513-RC 4b08b_513_000 4b08b_513_rc_schematic Customer Premise Equipment, Central Office ITU-T K.20 Dual resistors Downloads Buy
Model/Datasheet Photo MSL Soldering Profiles Packaging Label Terminal CofC 3rd Party Test Reports MDS China RoHS
30463046See Note
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TBD
TBDLMP 1
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3046
CROHS3046
30483046See Note
TBD
TBD
TBDLMP 1
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3048
CROHS3048
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Protecting High Speed Communication PortsPDF843.57 KB28 May, 2015 Download
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