component
FODM2705
Public Made by Adomby adom
onsemi Transistor, Photovoltaic Output Optoisolators, SOP-4-2.54mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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README.mdadded+66@@ -0,0 +1,66 @@+# FODM2705++**onsemi** · Transistor, Photovoltaic Output Optoisolators · SOP-4-2.54mm++FODM2705 from onsemi, in a SOP-4-2.54mm. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | ANODE | passive | One terminal of the infrared emitting diode pair; the FODM2705 uses two LEDs in inverse parallel for AC input, with forward current limited to IF(avg) 50 mA continuous and IF(pk) 1 A (1 s pulse, 300 pps). |+| 2 | CATHODE | passive | Other terminal of the infrared emitting diode pair; the FODM2705 uses two LEDs in inverse parallel for AC input, so either polarity may be applied within the emitter ratings (VR 6 V and IF(avg) 50 mA). |+| 3 | EMITTER | passive | Phototransistor emitter; the FODM2705 emitter-collector breakdown voltage (VECO) is rated at 7 V. |+| 4 | COLLECTOR | passive | Phototransistor collector; the FODM2705 collector-emitter voltage (VCEO) is rated at 40 V with continuous collector current IC of 80 mA. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | onsemi |+| Package | SOP-4-2.54mm |+| Category | Optoisolators |+| Pins | 4 |++## Electrical characteristics++Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).++| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |+|---|---|---|---|---|---|---|---|+| Collector-Emitter Breakdown Voltage (FODM2705) | BVCEO | 40 | | | V | IC = 1 mA, IF = 0 | 3 |+| Emitter-Collector Breakdown Voltage | BVECO | 7 | | | V | IE = 100 A, IF = 0 | 3 |+| Collector Dark Current | ICEO | | | 100 | nA | VCE = 40 V, IF = 0 | 3 |+| DC Current Transfer Ratio (FODM2705) | CTR | 50 | | 300 | % | IF = ±5 mA, VCE = 5 V | 3 |+| CTR Symmetry (FODM2705) | | 0.3 | | 3 | | IF = ±5 mA, VCE = 5 V | 3 |+| Saturation Voltage (FODM2705) | VCE(SAT) | | | 0.3 | V | IF = ±10 mA, IC = 2 mA | 3 |+| Steady State Isolation Voltage | VISO | 3750 | | | VACRMS | 1 minute | 3 |+| Storage Temperature | TSTG | -40 | | 125 | °C | | 2 |+| Operating Temperature | TOPR | -40 | | 110 | °C | | 2 |+| Junction Temperature | TJ | -40 | | 125 | °C | | 2 |+| Lead Solder Temperature | TSOL | | | 260 | °C | for 10 s | 2 |+| Continuous Forward Current | IF (avg) | | | 50 | mA | | 2 |+| Peak Forward Current | IF (pk) | | | 1 | A | 1 s pulse, 300 pps. | 2 |+| Reverse Voltage | VR | | | 6 | V | | 2 |+| Power Dissipation (emitter) | PD | | | 70 | mW | | 2 |+| Continuous Collector Current | IC | | | 80 | mA | | 2 |+| Collector-Emitter Voltage (FODM2701, FODM2705) | VCEO | | | 40 | V | | 2 |+| Emitter-Collector Voltage | VECO | | | 7 | V | | 2 |+| Power Dissipation (detector) | PD | | | 150 | mW | | 2 |++## CAD (KiCad official)++- Symbol: `FODM2705`+- Footprint: `Package_SO:SOP-4_3.8x4.1mm_P2.54mm`+- 3D model: SOP-4-2.54mm (KiCad packages3D, STEP)+- 3D model files: `fodm2705-etched.step` / `fodm2705-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fodm2705.step` / `fodm2705.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [onsemi datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588893303601844224) (9 pp, sha256 `f02541b56f11842c`, retrieved 2026-10-15, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/fodm2705-datasheet.pdf)
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a gallium arsenide infrared emitting diode driving a phototransistor in
a compact 4−pin mini−flat package. The lead pitch is 2.54 mm. The
FODM2705 consists of two gallium arsenide infrared emitting diodes
connected in inverse parallel for AC operation.</rdf:li>+ </rdf:Alt>+ </dc:description>+ <pdf:Producer>Acrobat Distiller 22.0 (Windows)</pdf:Producer>+ <pdf:Keywords/>+ <xmpMM:DocumentID>uuid:eb496977-818b-4acc-a76a-f18b3dd14eb2</xmpMM:DocumentID>+ <xmpMM:InstanceID>uuid:aad9ac37-510b-4bf7-a520-92d89e0f1043</xmpMM:InstanceID>+ </rdf:Description>+ </rdf:RDF>+</x:xmpmeta>+ + + + + + + + + + + + + + + + + + + + + +<?xpacket end="w"?> +endstream+endobj+6 0 obj+<<+/Annots [18 0 R 19 0 R]+/Contents [20 0 R 21 0 R 22 0 R 23 0 R 24 0 R 25 0 R 26 0 R 27 0 R]+/CropBox [0.0 0.0 612.0 792.0]+/MediaBox [0.0 0.0 612.0 792.0]+/Parent 2 0 R+/Resources 28 0 R+/Rotate 0+/Type /Page+>>+endobj+7 0 obj+<<+/Annots [29 0 R 30 0 R 31 0 R 32 0 R 33 0 R]+/Contents 34 0 R+/CropBox [0.0 0.0 612.0 792.0]+/MediaBox [0.0 0.0 612.0 792.0]+/Parent 2 0 R+/Resources 35 0 R+/Rotate 0+/Type /Page+>>+endobj+8 0 obj+<<+/Annots [36 0 R 37 0 R]+/Contents 38 0 R+/CropBox [0.0 0.0 612.0 792.0]+/MediaBox [0.0 0.0 612.0 792.0]+/Parent 2 0 R+/Resources 39 0 R+/Rotate 0+/Type /Page+>>+endobj+9 0 obj+<<+/Annots [40 0 R]+/Contents 41 0 R+/CropBox [0.0 0.0 612.0 792.0]+/MediaBox [0.0 0.0 612.0 792.0]+/Parent 2 0 R+/Resources 42 0 R+/Rotate 0+/Type /Page+>>+endobj+10 0 obj+<<+/Annots [43 0 R]+/Contents 44 0 R+/CropBox [0.0 0.0 612.0 792.0]+/MediaBox [0.0 0.0 612.0 792.0]+/Parent 2 0 R+/Resources 45 0 R+/Rotate 0+/Type /Page+>>+endobj+11 0 obj+<<+/Annots [46 0 R]+/Contents 47 0 R+/CropBox [0.0 0.0 612.0 792.0]+/MediaBox [0.0 0.0 612.0 792.0]+/Parent 2 0 R+/Resources 48 0 R+/Rotate 0+/Type /Page+>>+endobj+12 0 obj+<<+/Annots [49 0 R 50 0 R]+/Contents 51 0 R+/CropBox [0.0 0.0 612.0 792.0]+/MediaBox [0.0 0.0 612.0 792.0]+/Parent 2 0 R+/Resources 52 0 R+/Rotate 0+/Type /Page+>>+endobj+13 0 obj+<<+/Contents [53 0 R 54 0 R 55 0 R 56 0 R 57 0 R 58 0 R 59 0 R 60 0 R]+/CropBox [0.0 0.0 612.0 792.0]+/MediaBox [0.0 0.0 612.0 792.0]+/Parent 2 0 R+/Resources 61 0 R+/Rotate 0+/Type /Page+>>+endobj+14 0 obj+<<+/Annots [62 0 R]+/Contents [63 0 R 64 0 R 65 0 R 66 0 R 67 0 R 68 0 R 69 0 R 70 0 R]+/CropBox [0.0 0.0 612.0 792.0]+/MediaBox [0.0 0.0 612.0 792.0]+/Parent 2 0 R+/Resources 71 0 R+/Rotate 0+/Type /Page+>>+endobj+15 0 obj+<<+/S /D+>>+endobj+16 0 obj+<<+/S /D+>>+endobj+17 0 obj+<<+/S /D+>>+endobj+18 0 obj+<<+/A 72 0 R+/Border [0 0 0]+/Rect [472.819 739.276 548.504 747.893]+/Subtype /Link+/Type /Annot+>>+endobj+19 0 obj+<<+/Border [0 0 0]+/Dest [12 0 R /XYZ null null null]+/Rect [536.598 206.872 540.454 213.562]+/Subtype /Link+/Type /Annot+>>+endobj+20 0 obj+<<+/Length 1008+/Filter /FlateDecode+>>+stream +H�TVKn,7��)�Ќ�)�ୃ�@�IV�}��L`V�$�*VQ�5᷵������s������r�U�T�pa4��Jm�����W-7�`����_�-_i�rZ*��d�����Bc,I0��G�^>i�ׅ�ԇ��~]�r���^�~�%��kW�{��?r�#�jIW�¤� ,�Q_��w�*�Ш����i�Y�IkK,T��[��k����ȕ�?�1r�'|��oe�]��~i������Yw"�=����@��3D�5�b�UC~�o((�� ����εM\e�,���v>��C���C�N�b���߆�BfM-���I��t�^ƣ��X�싺�w��X<H�~χ�V�yt�]r�W%��H"#�i�P,���m�8x�U�>��36=��|]Ar�ԉ �u��I�X����hY�' Hf.��,��$�d�}�ܛ;u����h�'��<4�̣���-+5��dV��şTWy� �1��.oe���u�ɷ���Odh����� nʤ<f�9Й{`�:�x�A���v�O��6>/�Њ%(��OXM���ty�,�Ⲵ�5�j����!8���� ���d0�m��$�Bm�wL- 9-7ղ�c+�Cv �+hƵ�د+św�TوY� ,�4F�hC�a��S���@l��5W2���-�(:p� tǸ�&ȁ]��Q�0ƌS���95�A^��nr�0N0��F�vj@Hz�u�h '��60BH��B�o��N��Ί�><�N`�fHR�q��j�'ě�\G7{7��?f23o�� �tf��8�Zk��Cg��$�=V���0��Ho�xt�tٓMFy��\_9��p#8��F�+$-�{�h4MOw {D!��y�M<��Z��ò�<����$LdnO�˽��װ�?���1O?H��|n���_�x��6����_�!�ߋ���h�w��� � 2_M�f�Rc�����y������;�! �p��~]�? � �2 +endstream+endobj+21 0 obj+<<+/Length 923+/Filter /FlateDecode+>>+stream +H�tUI�$7��+t6��(Q�3� �Ts������E�F�Q��છ��t3u���n|��|P8�P8�7��L��|($u��}�$��B/�B�9�Q��L��=ݍ�y�� ���+,T�J��\M:ӄ�{g]�+�CT��n�S����D8�y���i�&F�(�m<t���~���� R����5hԑ2�>ן\?���ĹP��F�|���i?/s�42hRA+�j^�d��:Mg.$c� 7��iQ��H� �`^j�+NG6� �p��b<Ac)�ޒ��J���(���ob�@�Y6��� F��b��K!��4�p�ܶߍU����/_��K^:��|���� U۹/4��#�_�"g��r$(I�%�UjOv���Q��Q�� _h34[�ֺ֨���PJ����F�x1�(̝���4#�^�1K����6� ѿ��5��u�0bk>)��2�Y�2�;�Q?�>