Photos show the actual item you will receive.
Product details
About this part
The Lumenis Coherent Attenuator Board Assy 0636-043-01 Rev A, PCB 0636-042-01 is made by Lumenis and identified by manufacturer part number 0636-042-01.
This listing is for the exact part number stated above. Compare the part number, condition and photos with your equipment before ordering.
Condition
This item is listed as Used. Previously used. See condition notes and photos.
The photos are part of the description — check them for labels, connectors, markings and any visible wear.
What's included
1 × Lumenis Coherent Attenuator Board Assy 0636-043-01 Rev A, PCB 0636-042-01.
Only the items listed here or clearly shown in the photos are included. Cables, manuals, mounting hardware and accessories are not included unless stated.
Identification & compatibility
Check the manufacturer (Lumenis), the part number (0636-042-01) and the photos against your equipment. If you are not sure this is the right part, contact us before you order.
Price match
Found an identical item for less at a fixed price elsewhere? Contact us before you buy with the details, and we will review it.
Important information
Product information is based on what is available for this specific item. Where specifications or compatibility are critical to your application, confirm them before purchase.
- Brand
- Lumenis
- Part number
- 0636-042-01
- Model
- 0636-042-01
- Board
- COHERENT ATTENNUATOR BD (attenuator board)
- Assembly number
- ASSY 0636-043-01, Rev A (suffix and revision hand-marked)
- Bare board (FAB)
- 0636-042-01, Rev A
- Brand (seller)
- Lumenis; board marked Coherent
- Logic IC
- MC74HC14AN hex Schmitt-trigger inverter (U2)
- Connectors
- J27 6-pin header, J28 3-pin header
- Other parts
- Slotted sensor, R1, R2, C1 and one more capacitor
- Labels
- Z-580 18-05, FT-580 18-05, barcode S55A-P007
- Shape
- L-shaped yellow PCB with mounting holes
- Packed weight (stock label)
- 0.02 kg
Coherent attenuator board, assembly 0636-043-01 Rev A, built on bare board 0636-042-01. A small L-shaped yellow PCB from a Coherent laser, sold under the Lumenis brand. The silkscreen spells it "ATTENNUATOR BD", so the part is also searched as 0636-043, 063604301 and 0636-042-01.
Why does it say Coherent and not Lumenis?
Lumenis was formed when ESC Medical Systems bought the Coherent Medical Group in 2001, so boards from older Coherent medical lasers still carry the Coherent logo. The markings on this board are all Coherent's.
What is on the board?
Very little: an MC74HC14AN hex Schmitt-trigger inverter (U2), two resistors, two capacitors, a slotted sensor and two keyed headers, J27 (6-pin) and J28 (3-pin). The board edge is marked "TO ATTEN". The back carries the FAB number 0636-042-01 Rev A and a barcode sticker S55A-P007.
Which laser is the 0636-043-01 from?
The board does not name the system. Other Coherent boards in the same 0636-0xx series came out of VersaPulse holmium lasers, but that is not printed on this one, so check the number against your service manual.
- Ships from
- Israel
- Tracking
- Included on every order
Import duties and taxes may apply in your country and are paid by the buyer on delivery.
- Returns
- Not accepted
Return terms differ from item to item — this item's own policy is shown above.
Whatever it says, an item that arrives faulty or not as described is covered: tell us within 30 days of delivery and we will refund or replace it.
Consumers in the EU, the UK and Israel keep their legal right to cancel within 14 days. Full details and the return request form are on our Returns and warranty page.
Questions about this part
Is 0636-042-01 a different part from 0636-043-01?
No, same board. 0636-042-01 is the bare PCB (FAB) number on the back, 0636-043-01 is the assembled board number on the front.
What does a laser attenuator do?
It reduces the beam power reaching the delivery optics. This board carries a sensor, a logic IC and two headers; the attenuator optic itself is not included.
What IC is on the Coherent attenuator board?
One MC74HC14AN, a hex Schmitt-trigger inverter in a 14-pin DIP.
Does it fit a Lumenis laser?
Lumenis took over Coherent's medical lasers in 2001, so Coherent-marked boards like this one run in Lumenis-serviced systems. Match the 0636-043-01 number before you order.
Are cables included?
No. It is the bare board with its headers, as in the photos.
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