Hammond 102D 600:1500 Ohm Epoxy Potted PCB Input Transformer
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Create Free Business AccountKey Features
- 600 ohm primary to 1500 ohm secondary input transformer
- 20 mW output rating
- 1.5 dB insertion loss; -1 dB at 310 Hz
- DCR 43 ohms primary, 85 ohms secondary (+/- 15%)
- No primary DC (0 mA max)
- Sealed black epoxy body with 0.025 in square pins
- 100 V peak working voltage
The 102D is a miniature input audio transformer from the 102 Series that matches a 600 ohm primary to a 1500 ohm secondary. Board designers use it to bring a standard 600 ohm line into a higher-impedance input on a printed circuit board.
It is sealed in rugged black epoxy, giving a completely sealed unit, and mounts on the board with square pins that are 0.025 in square typical. Where a connection is not used, no pin exists. The 102D corresponds to drawing figure 1, the same outline as the 102B.
Performance ratings for the 102D:
- Output: 20 mW
- Insertion loss: 1.5 dB
- Low frequency roll-off: 310 Hz at -1 dB
- DC resistance: 43 ohms primary, 85 ohms secondary, +/- 15%
- Maximum primary DC: 0 mA
- Peak working voltage: 100 V
The maximum primary DC rating is 0 mA, so the primary is not rated to carry DC. This part is RoHS and REACH compliant and has a shipping weight of 0.02 lbs (0.01 kg). The series literature refers buyers wanting a more economical open-type P.C. mount part to the 148 and 149 series.
Ideal For
- 600 ohm line input matching on PCBs
- Audio input stages in compact equipment
- Sealed board-level audio coupling
Overview
| Series | 102 Series Miniature Audio Epoxy Potted |
| Description | Audio transformer, potted, primary 600 ohms, secondary 1500 ohms |
| Product Type | Audio transformer, potted |
| Short Description | AUDIO TX INPUT POTTED |
| Typical Application | Input |
Dimensions
| Drawing Figure | 1 |
Electrical
| Output Power | 20 mW |
| Insertion Loss | 1.5 dB |
| Peak Working Voltage | 100V |
| Max. Primary DC Current | 0 mA |
| Primary Nominal Impedance | 600 ohms |
| Secondary Nominal Impedance | 1500 ohms |
| Low Frequency Roll Off (-1 DB) | 310 Hz |
| Primary DC Resistance (+/- 15%) | 43 ohms |
| Secondary DC Resistance (+/- 15%) | 85 ohms |
Identifiers
| UPC | 623980178905 |
| UNSPSC | 39121301 |
Packaging & Shipping
| Shipping Weight | 0.02 lbs (0.01 kg) |
Construction & Finish
| Mounting | P.C. board mount |
| Pin Type | Square pin, 0.025 in square typical |
| Construction | Rugged black epoxy potted construction; completely sealed unit |
| Unused Connections | If a connection is not used, no pin will exist |
Compliance & Certifications
| RoHS Compliant | Yes |
| REACH Compliant | Yes |
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Frequently Asked Questions
What impedances does the 102D match?▾
600 ohm primary to 1500 ohm secondary.
What is the output power rating?▾
20 mW.
What are the DC resistances?▾
43 ohms primary and 85 ohms secondary, +/- 15%.
How does the 102D differ from the 102B?▾
Both are 102 Series input transformers with a 1500 ohm secondary. The 102D has a 600 ohm primary, while the 102B has a 50 ohm primary.
Is it sealed?▾
Yes. Rugged black epoxy potting produces a completely sealed unit.
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