898-1-R330F
AI

The part number **898-1-R330F** refers to a specific type of passive electronic component: a **Thick Film Resistor Network** manufactured by **BI Technologies** (a brand under TT Electronics).
### Component Breakdown
The part number follows a specific nomenclature that defines its electrical and physical characteristics:
| Code Segment | Meaning | Description |
| :--- | :--- | :--- |
| **898** | Model Series | 16-pin Dual-In-Line Package (DIP) |
| **-1** | Circuit Type | Isolated Resistor Network (8 independent resistors) |
| **R** | Resistance Unit | Standard indicator for Ohms ($\Omega$) |
| **330** | Resistance Value | 330 Ohms |
| **F** | Tolerance | $\pm 1\%$ (High Precision) |
---
### Key Technical Specifications
Below are the typical specifications for the 898 series resistor networks:
* **Package Type:** 16-Pin DIP (Through-hole mounting).
* **Circuit Configuration:** **Isolated.** This means there are 8 separate resistors inside the chip, each with its own pair of pins (Pin 1 to 16, Pin 2 to 15, etc.). They do not share a common bus.
* **Power Rating:** Typically 0.125 Watts per resistor at 70°C.
* **Maximum Operating Voltage:** 100V.
* **Temperature Coefficient (TCR):** $\pm 100 \text{ ppm/}^\circ\text{C}$.
* **Operating Temperature Range:** $-55^\circ\text{C}$ to $+125^\circ\text{C}$.
---
### Common Applications
Because this part contains multiple precision resistors in a single compact package, it is used to save board space and improve reliability in the following scenarios:
1. **Line Termination:** Matching impedance for high-speed data lines to prevent signal reflections.
2. **Current Limiting:** Used for banks of LEDs where each LED requires an individual 330$\Omega$ resistor.
3. **Pull-up/Pull-down Resistors:** Used in digital logic circuits (though "Bussed" versions are more common for this, "Isolated" versions allow for different voltage rails).
4. **Gain Setting:** Used in operational amplifier circuits where matched resistor values are critical.
---
### Internal Schematic (Isolated)
In an isolated configuration like the **-1** variant, the pins are mapped as follows:
```text
Pin 1 ---[ 330Ω ]--- Pin 16
Pin 2 ---[ 330Ω ]--- Pin 15
Pin 3 ---[ 330Ω ]--- Pin 14
... and so on up to ...
Pin 8 ---[ 330Ω ]--- Pin 9
```
- ⤷
What is the difference between an isolated and a bussed resistor network?
- ⤷ Can this component be used for surface mount (SMD) applications?
- ⤷ How does a 1% tolerance affect the performance compared to a 5% tolerance resistor?