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| (R) MH80625C Protection SIP Preliminary Information Features * * 2 x 5.5 ohm high power, high voltage, thick film protection resistors 2 replaceable 2AG fuses in surface-mounted fuse clips MH80625C ISSUE 2 April 1995 Ordering Information 10 Pin SIL Package 0C to 70C Applications * * Protection circuit for the MH89625C OPS SLIC Protection circuit for analog line interfaces, power supplies, etc. Description The MH80625C hybrid SIP provides a protection circuit consisting of two 2AG size fuses in surfacemounted fuse clips and two high voltage, high power resistors. The SIL hybrid, together with an external solid state protector, provides full secondary protection for the MH89625C Off-Premise SLIC, allowing conformance to the requirements of CCITT K.20. F1 TIN R1 TOUT F2 RIN R2 ROUT Figure 1 - Functional Block Diagram 2-3 MH80625C Preliminary Information IC NC RIN NC TOUT ROUT NC TIN NC IC 1 2 3 4 5 6 7 8 9 10 Figure 2 - Pin Connections Pin Description Pin # 1 2 3 4 5 6 7 8 9 10 Name IC NC RIN NC TOUT ROUT NC TIN NC IC Internal Connection. No Connection. Ring Input: Connects to Ring conductor of the Subscriber Loop. No Connection. Tip Output: Connects to Tip conductor of the SLIC. Ring Output: Connects to Ring conductor of the SLIC. No Connection. Tip Input: Connects to Tip conductor of the Subscriber Loop. No Connection. Internal Connection. Description 2-4 Preliminary Information Electrical Characteristics 0C to 70 C Characteristics 1 2 3 4 Resistance - absolute Resistance - absolute Resistance - match Fuse F1 0.25 Symbol R1 R2 Min 4.5 4.5 Typ* 5.5 5.5 Max 6 6 1 Units % Amps MH80625C Test Conditions Match between R1 & R2 Littlefuse 2AG, 250VAC P/N 229.250 Slow Blow Littlefuse 2AG, 250VAC P/N 229.250 Slow Blow 5 Fuse F2 0.25 Amps * Typical figures are at 25C and are for design aid only. Reference Specification 1 CCITT K.20 Test Lightning Surge Simulation Power Induction Power Cross Description 1kV 10 x 700 sec 300 Vrms 200 msec 220 Vrms 15 min Performance No damage No arcing, fuse intact No damage No arcing, fuse intact No damage No arcing, fuse blows Comments See Note 1 2 3 CCITT K.20 CCITT K.20 See Note 1 See Note 1 Note 1: Refer to CCITT K.20 specification for details of tests. MDF PRIMARY PROTECTION SECONDARY PROTECTION TIN 8 F1 R1 5 RING RELAY R2 TOUT MH89625C TIP 1 TISP 3082 TIP MH80625C F2 3 RIN RING 2 6 ROUT 7 P6KE39C 90 VRMS 25Hz RING RF2 6 RF1 -V BAT Figure 3 - Application Circuit - Secondary Protection 2-5 MH80625C Preliminary Information 0.34 MAX 0.01 MIN (0.25) 1.0 + 0.020 (25.4 + 0.5) FUSE AREA 0.7 + 0.020 (17.8 + 0.5) FUSE AREA 1 1 2 3 4 10 5 6 0.05 + 0.01 (1.3 + 0.5) * 0.05 + 0.02 0.020 + 0.005 (1.225 + 0.05) (0.51 + 0.13) * * 0.18 + 0.02 (4.6 + 0.5) Notes: 1) Not to scale 2) Dimensions in inches). 3) (Dimensions in millimetres). *Dimensions to centre of pin & tolerance non accumulative. 0.100 + 0.010 (2.54 + 0.26) Figure 4 - Mechanical Data 2-6 |
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