描述

产品特性

1. Bidirectional design to suppress positive and negative voltage spikes simultaneously
2. High peak pulse power dissipation of 600W at 25°C ambient temperature
3. Withstands peak forward surge current up to 100A under 8.3ms single half sine wave pulse
4. Glass passivated chip construction for stable long-term reliability and anti-aging performance
5. Excellent clamping capability and ultra-fast transient response to absorb surge energy instantly
6. SMB (DO-214AA) standard surface-mount package, fully compatible with automated SMT assembly
7. UL94V-0 flame retardant molded plastic housing for high safety
8. Distinct cathode band or notch marking for easy polarity identification during PCB layout
9. Wide operating junction and storage temperature range: -55°C ~ +150°C
10. Solder-plated terminals that meet MIL-STD-750 soldering specifications
11. Complete series portfolio (5V–170V) with unidirectional and bidirectional options for diverse circuit demands

我们的优势

1. 600W high surge power capacity handles severe lightning interference for long-distance wired equipment
2. Integrated bidirectional single-chip design replaces two separate unidirectional TVS devices, cutting BOM cost and PCB footprint
3. Glass passivated die improves long-term stability, ideal for industrial and automotive products requiring long service life
4. Low maximum clamping voltage effectively limits residual overvoltage to prevent damage to sensitive ICs
5. SMB medium-power package balances power capacity and space occupation, matching most power board layouts
6. Broad temperature tolerance maintains consistent protection performance under extreme high and low temperature environments
7. Clear polarity marking avoids reverse mounting errors during mass SMT production
8. Low reverse leakage current reduces standby power loss for battery-powered portable devices
9. Full voltage series covers low-speed signal circuits to high-voltage power rails, offering one-stop EMC surge protection solutions
10. Solder-plated terminals support standard lead-free reflow soldering without special process adjustments

机械数据

1. Package Type: SMB / DO-214AA molded plastic surface-mount package
2. Encapsulation Material: UL94V-0 flame retardant plastic
3. Terminals: Solder plated, compliant with MIL-STD-750 Method 2026
4. Polarity Marking: Cathode band or cathode notch on package surface
5. 外形尺寸（单位：毫米）：
   • A: 3.30 Min ~ 3.94 Max
   • B: 4.06 Min ~ 4.70 Max
   • C: 1.91 Min ~ 2.21 Max
   • D: 0.15 Min ~ 0.31 Max
   • E: 5.00 Min ~ 5.59 Max
   • G: 0.10 Min ~ 0.20 Max
   • H: 0.76 Min ~ 1.52 Max
   • J: 2.00 Min ~ 2.62 Max
6. 重量约为：0.093克
7. Operating & Storage Temperature Range: -55°C ~ +150°C

应用

• Industrial control boards, sensors and 7.5V low-voltage power supply circuits
• Notebook, desktop computers and peripheral signal & power interface circuits
• Communication routers, switches and wired signal transmission lines
• Consumer audio & video equipment, set-top boxes and display driving circuits
• Automotive low-voltage auxiliary control circuits and on-board signal lines
• Handheld measuring instruments and all battery-powered portable electronics
• 低电压敏感医疗电子设备
• All surface-mount PCB products requiring bidirectional 7.5V transient surge protection

Key Electrical Parameters of SMBJ7.5CA (Ta=25°C, IT=1mA)

1. VRWM (Reverse Stand-Off Voltage): 7.5 V
2. VBR (Breakdown Voltage): Min 8.33 V, Max 9.58 V
3. IR (Reverse Leakage Current @ VRWM=7.5V): ≤ 100 μA
4. VC & IPP: Max Clamping Voltage 12.9 V at Peak Pulse Current 46.5 A