MMBFJ177LT1G
Manufacturer
Model
MMBFJ177LT1G
Category
The MMBFJ177LT1G is a compact SOT-23 JFET optimized for low-power switching and signal amplification in temperature-sensitive environments. With 1.5mA drain current, 30V breakdown voltage, and 300Ω RDS(on), it suits battery-powered devices and IoT sensors. Thermal management requires careful PCB layout with copper pours, while soldering must avoid prolonged heat exposure. Marketed at 0.0524 USD in bulk, it fills cost-sensitive low-power roles but lacks high-current handling capabilities.
Reference Pricing
Reference Stock
Specifications
| Drain Current | -20 mAdc |
| Drain-Source Voltage | -25 Vdc |
| Gate-Source Voltage | 25 Vdc |
| Input Impedance | Not provided |
| Operating Temperature Range | -55 to +150 °C |
| Output Impedance | Not provided |
| Package Size | 0.89mm x 1.11mm x 2.80mm |
| Package Type | SOT-23 |
| Rated Voltage | Not provided |
| Transconductance | 300 mΩ |
Function And Role
Core Function
Low-power JFET for switching and signal amplification
Key Characteristics
- 225mW power dissipation
- 1.5mA drain current at 15V
- 300Ω RDS(on)
- 30V gate-source breakdown voltage
Application Domains
Basic Scenarios
- Low-power signal conditioning circuits
- General-purpose switching applications
- RF filter/amp biasing
Extended Scenarios
- Sensor interface circuits (pressure/temperature)
- Power management systems
- Battery management systems
Precautions
| Soldering | Use 3-5 seconds per pad with 300°C peak temperature |
| Current Limit | Max continuous drain current: 1.5mA |
| Voltage Limit | Max Vds: 30V, Max Vgs: ±20V |
| Thermal Management | Thermal resistance: 170°C/W |
| Storage | Store in <10% RH, -20°C to +85°C environments |
| Risk Warnings |
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Alternative Model Params
- Pd (Power Dissipation)
- Idss (Drain Current)
- RDS(on) (On-Resistance)
- V(BR)GSS (Breakdown Voltage)
- Operating Temperature Range
Design Recommendations
| Layout | Maintain 10mil trace spacing for thermal relief |
| Thermal | Use copper pours >20mm² for heat dissipation |
| Compatibility | Verify gate threshold voltage (Vgs(th)) compatibility |
| Testing | Test at 85°C/85% RH for 1000h reliability |
Market Positioning
| Strengths |
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| Weaknesses |
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Datasheet
Assist inquiry
Distributors
Shenzhen Rongda Wei Electronic Technology Co., Ltd.
Shenzhen Weishangcheng Technology Co., Ltd.
Shenzhen Liushengshiji Electronic Co., Ltd.
Shenzhen Songyi Microelectronics Technology Co., Ltd.
Shenzhen Yuxin Chuangda Technology Co., Ltd.
Shenzhen Caifahuo Electronic Co., Ltd.
Shenzhen Xinyazhou Electronic Market Donglidao Electronic Business Department
Shenzhen Zhihai Yun Tian Electronic Co., Ltd.
Shenzhen Jinkaikebo Industrial Co., Ltd.
Shenzhen Kaida Xun Electronic Technology Co., Ltd.
Jingrun Xincheng (Shenzhen) Electronics Technology Co., Ltd.
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Shenzhen Futian District Hanwei Xing Electronic Business