# CCR250 - CCR257 Current Regulator Chips

## General Description
️· Current regulator chips, CCR250 thru CCR257
️· Silicon Dioxide protected junctions
️· Constant current over a wide voltage range
️· High source impedance
️· Compatible with wire bonding and die attach (excluding solder reflow)

## Maximum Ratings
️· Operating Temperature: -55°C to +175°C
️· Storage Temperature: -55°C to +175°C

## Electrical Characteristics

|Type Number|Regulator Current (mA) @ VS = 25V|Minimum Dynamic Impedance @ VS = 25V (kΩ)|Minimum Knee Impedance @ VK = 6.0 V (kΩ)|Maximum Limiting Voltage @ lL = 0.8 Ip (min) (Volts)|Peak Operating Voltage (Volts)
|CCR250|5.10 (4.59 min, 5.61 max)|100|4.0|3.67|80
|CCR251|5.60 (5.04 min, 6.16 max)|90|4.0|4.03|80
|CCR252|6.20 (5.58 min, 6.82 max)|80|3.0|4.46|70
|CCR253|6.80 (6.12 min, 7.48 max)|70|2.0|4.90|70
|CCR254|7.50 (6.75 min, 8.25 max)|50|1.5|5.40|60
|CCR255|8.20 (7.38 min, 9.02 max)|30|1.5|5.90|60
|CCR256|9.10 (8.19 min, 10.01 max)|20|1.0|6.55|50
|CCR257|10.00 (9.00 min, 11.10 max)|10|1.0|7.20|50

️· Note 1: IP measured with a 10-millisecond pulse.
️· Note 2: ZS derived using a 90Hz RMS signal (10% of VS).
️· Note 3: ZK derived using a 90Hz RMS signal (10% of VK).

## Design Data
️· Metallization:
- Top (Anode): Aluminum (Al)
- Back (Cathode): Gold (Au)
️· Thickness:
- Aluminum: 25,000 Å minimum
- Gold: 4,000 Å minimum
️· Chip Thickness: 10 Mils
️· Tolerance: +2 Mils (Anode Pad: +0.1 Mils)

## Contact Information
️· Address: 22 Corey Street, Melrose, Massachusetts 02176
️· Phone: (781) 665-1071
️· Fax: (781) 665-7379
️· Website: http://www.cdi-diodes.com
️· Email: mail@cdi-diodes.com