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BM04B-SRSS-TB(LF)(SN)
Manufacturer
Model
BM04B-SRSS-TB(LF)(SN)
Category
The JST BM04B-SRSS-TB(LF)(SN) is a vertically mounted 4-pin SMD connector designed for reliable wire-to-board connections in temperature-sensitive environments. With copper alloy contacts and tin plating, it supports 1A current and 50V voltage in -25°C to +85°C ranges. Ideal for automotive and industrial applications requiring UL94V-0 certification, its 1mm pitch and PA housing ensure compact PCB layouts while maintaining electrical isolation. Proper soldering techniques and thermal management are critical to maximize service life.
Reference Pricing
Reference Stock
Specifications
| Electrical Performance | Not specified |
| Interface Type | Side entry type |
| Material | Not specified |
| Operating Temperature Range | Not specified |
| Pins | 4 |
| Pitch | 2.54mm |
| Soldering Method | Not specified |
Function And Role
Core Function
1x4P wire-to-board connection with vertical soldering, copper alloy contacts, and tin plating
Key Characteristics
- 1mm pitch
- UL94V-0 flammability
- PA housing
- 1A current rating
- operating temperature -25°C to +85°C
Application Domains
Basic Scenarios
- Consumer electronics assembly
- Automotive control systems
- Industrial control panels
Extended Scenarios
- Medical device connectivity
- Renewable energy system interconnections
- IoT sensor node mounting
Precautions
| Soldering | Use 300-350°C temperature with 2-3 seconds per pin, avoid prolonged exposure |
| Current Limit | Max 1A continuous current, 3A peak |
| Voltage Limit | Max 50V DC, 30V AC |
| Thermal Management | Thermal resistance 0.05W/°C, avoid exceeding 85°C ambient |
| Storage | Store in anti-static packaging below 30°C with 30-50% humidity |
| Risk Warnings |
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Alternative Model Params
- Pitch (1.0-1.5mm)
- Contact material (copper/copper alloy)
- Current rating (0.5-2A)
- Operating temperature (-40°C to +105°C)
Design Recommendations
| Layout | Maintain 3mm minimum trace spacing, use 0.5mm clearance for adjacent components |
| Thermal | Implement 10°C temperature gradient from connector to PCB pad |
| Compatibility | Ensure PCB pad dimensions match 3.6mm Y-axis width and 6mm X-axis length |
| Testing | Perform 5000 cycle durability testing at 75°C |
Market Positioning
| Strengths |
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| Weaknesses |
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Datasheet
Assist inquiry
Distributors
Chuangxinwei Electronic (Shenzhen) Co., Ltd.
Shenzhen JiYuanTong Electronic Co., Ltd.
Shenzhen Hongkai Xuan Technology Co., Ltd.
Shenzhen Chengkai Electronic Co., Ltd.
Shenzhen Aotongxin Shi Ji Diànzǐ Yǒuxiàn Gōngsī
Shenzhen Bingcheng Technology Co., Ltd.
Shenzhen 8:30 Electronics Co., Ltd.
Shenzhen Shangheng Technology Co., Ltd.
Chengze Electronics (Beijing) Co., Ltd.
Shenzhen BoXinFa Technology Co., Ltd.
Braiic Technology (Shenzhen) Co., Ltd.
Shenzhen Chengyan Intelligence Technology Co., Ltd.
Shenzhen Songye Da Technology Co., Ltd.
Shenzhen Chaolongye Electronic Technology Co., Ltd.
Shenzhen Futian District Xinboyuan Electronic Trading Department
Shenzhen Futian District Dongyu Electronic Merchants
Shenzhen Ezze Electronics Co., Ltd.
Shenzhen Gaotai Trading Co., Ltd.
Shenzhen Lika Technology Co., Ltd.
Guangzhou Bestest Electronics Co., Ltd.
Shenzhen SiLian Mei Electronic Co., Ltd.
Shenzhen Haoruida Electronic Operation Department (Individual)
Shenzhen Hengdi Technology Co., Ltd.
Shenzhen Enrant Electronics Co., Ltd.
Shenzhen Ruikin Technology Co., Ltd.
Shenzhen Honglixin Electronic Co., Ltd.
Shenzhen Hamannni Electronic Co., Ltd.
Shenzhen He Rui Da Electronic Trading Co., Ltd. (Individual Proprietorship)
Shenzhen Huangshengda Technology Co., Ltd.
Shenzhen Meidafeng Technology Co., Ltd.