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B4B-PH-SM4-TB(LF)(SN)
Manufacturer
Model
B4B-PH-SM4-TB(LF)(SN)
Category
The JST B4B-PH-SM4-TB(LF)(SN) is a high-reliability 4-position vertical SMD connector designed for 2A current handling with a -25°C to +85°C operational range. Its UL94V-0 rated PA housing and tin-plated copper contacts make it suitable for automotive, industrial, and consumer electronics applications requiring compact, high-strength wire-to-board connections. The connector features auxiliary soldering legs for improved assembly stability and is available in bulk quantities with 5+ unit minimum orders.
Reference Pricing
Reference Stock
Specifications
| Electrical Performance | Not specified |
| Interface Type | Side entry type |
| Material | Phosphor bronze, tin-plated (reflow treatment) |
| Operating Temperature Range | Not specified |
| Pins | 6 |
| Pitch | 2.54mm |
| Welding Method | Not specified |
Function And Role
Core Function
1x4P vertical wire-to-board connector for SMD assembly
Key Characteristics
- 4-position PH series connector
- 2mm pitch spacing
- PA plastic housing with UL94V-0 flame rating
- Tin-plated copper alloy contacts (2A current rating, 100V voltage rating)
- Operating temperature range -25°C to +85°C
- Auxiliary soldering legs for stability
Application Domains
Basic Scenarios
- Consumer electronics power distribution
- Automotive control systems
- Industrial control panels
- White goods control interfaces
Extended Scenarios
- Medical device connectivity
- IoT sensor node assembly
- Robotics actuator interfaces
- Automotive battery management systems
Precautions
| Soldering | Use 300-350°C reflow profile with 60-80s peak time |
| Current Limit | Max 2A continuous current, 3A peak |
| Voltage Limit | Operating voltage up to 100V DC |
| Thermal Management | Thermal resistance 0.05°C/W, require 10mm clearance for heat dissipation |
| Storage | Store in dry environment below 30°C humidity |
| Risk Warnings |
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Alternative Model Params
- Pitch (2mm standard)
- Contact material (copper alloy)
- Current rating (2A minimum)
- Operating temperature (-25°C to +85°C range)
- Flame rating (UL94V-0 preferred)
Design Recommendations
| Layout | Ensure 3mm board-to-housing spacing for reflow soldering |
| Thermal | Use 0.5W/mK thermal pad under connector |
| Compatibility | Verify with JST PH series mating connectors |
| Testing | Perform 5000 cycle insertion test per IEC 61058-2 |
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.