Features

Posted in SHA Series

SHA Series is produced by multiple layers process. The inner electrode is printed above sheet and press the sheets to make the structure dense and sinter at high temperature through oven. At this stage, the ceramic particle will grow up and make the structure more dense and end termination at both ends eventually.
We develop the overvoltage suppressors base on professional formula and production technic (acquired many international patents). It not only provides the high performance of surge protection for electronic products, but also saves the assembly cost and space limits due to SMD package. In addition, due to the excellent electric characteristics (BDV、α、Ir、Capacitance with normal distribution and low dispersion), it can apply in Load Dump protection at automotive power I/O ports. Also, SHA series compy with ISO7637-2 Pulse 5a higest level. As for the characteristic of high temperature operating, SHA series can resolve the problem of TVS derating at high temperature, the SHA series is the best choice for automotive Load Dump protection.

Key Features:

  • Application in automotive ECU, OE or AF markets
  • Comply with ISO7637-2 Pulse 5a /5b 10 times above
  • SMD packakge to save assembly time and space (height)
  • Excellent electric characteristics (BDV、α、Ir、low dispersion)
  • Quick response time compared with GDT or MOV
  • Low leakage current & low clamping volt at high temepeaure
  • SHA series can withstand high peak current multi-times

Standard

Posted in SHA Series

ISO7637-2:2004 pulse 5A

Parameter 12 System 24 System
Pulse Voltage Us 79V to 101V 151V to 202V
Supply Voltage UA 13.5V 27V
Output Resistance Ri 0.5Ω to 4Ω 1Ω to 8Ω
Pulse Width td 40ms to 400ms 100ms to 350ms
Rise Time tr 5ms to 10ms 5ms to 10ms

ISO7637-2:2004 pulse 5B

Parameter 12 System 24 System
Pulse Voltage Us 79V to 101V 151V to 202V
Supply Voltage UA 13.5V 27V
Output Resistance Ri 0.5Ω to 4Ω 1Ω to 8Ω
Pulse Voltage with
Loda Dump
Surpression Us*
35 65
Pulse Width td 40ms to 400ms 100ms to 350ms
Rise Time tr 5ms to 10ms 5ms to 10ms

Application

Posted in SHA Series

Applications:
Powertrain ECU
Comfortable ECU
Security ECU
Safety ECU
Multimedia ECU

Schematic Circuit:

Explanation:
(1)-S1 consideration for large current to cause short circuit.
(2)-R5 resistor with range 0~22ohm, the main function is to share loading of Load Dump. But, it is not too large and needs design on actual current because it will cause the voltage down I×R. The pulse 5 of ISO7637 5 of Load Dump is absorbed by R and SHA. It also needs to measure the voltage while low voltage. Therefore, if the resistance is large, the system doesn’t work at low voltage. The Rs is too small to share loading of SHA.
(3)-SHA is the main component to suppress the Load Dump.
(4)-D1 PN diodes.
(5)-L1 and C3, C2, combination of LC filter for EMC to prevent current difference.
(6)-D2 the protection at secondary (optional).

To suppress the load dump can start from circuit protection. To choose various overvoltage protection components, it means to choose excellent protectors with good heat dissipation, high temperature, and quick response time (9~10 sec.) for overvoltage is good protection for electric regular and ECU.

Parameters

Posted in SHA Series

Parameter Unit Description (Definition)
Working Voltage V(max) Maximum continuous working voltage: within working temperature, the max. AC volt (RMS) loaded at both ends of component or DC voltage.
Breakdown Voltage V(1mA) At current (1mA), the terminal voltage of component, known as breakdown voltage.
Clamping Voltage V(1A) Loaded with standard current at waveform 8/20us, the maximum voltage of both ends.
Surge Current A The allowed maximum pulse current through components (at 10/700us)
Load Dump J The allowed maximum energy through component
Jump Start Voltage(5min) Min The continuous time of allowed maximum DC voltage through component
Non-linear Coefficient (α)   To meet with I-V curve, I1 & I2, V1 & V2, α= log I2/ I1/ logV2/ V1.
Leakage current uA To measure the leakage current at max. continuous working voltage.
Capacitance pF The existed capacitance of component (Typical)
Response Time ns Time for component operation
Operation Ambient Temperature The operating temperature at normal
Storage Temperature The storage temperature for general product

Dimension

Posted in SHA Series

Model 0805 Series 1206 Series 1210 Series 1812 Series 2220 Series 3220 Series
Length(L) 2.4±0.2mm 3.2+0.6/-0.2mm 3.2+0.6/-0.2mm 4.5+0.6/-0.2mm 6.0+0.7/-0.2mm 8.1 +0.7/-0.3mm
Width(W) 1.25±0.15mm 1.6+0.4/-0.2mm 2.5+0.4/-0.2mm 3.2+0.5/-0.2mm 5.3+0.5/-0.2mm 5.3+0.6/-0.3mm
Thickness(T) 1.30 mm Max 1.90 mm Max 2.60 mm Max 3.50 mm Max 3.60 mm Max 3.70 mm Max
Termination(a) 0.25 ±0.1mm 0.50±0.25mm 0.5±0.25mm 0.5±0.35mm 0.5±0.35mm 0.8+0.5/-0.1mm

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SHA Specification

  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Peak Current Load Dump Jump Start Voltage
    (5min)
    Symbol DC V(1mA) V A WLD(J) V JUMP (V)
    SFI0805SA240-1R5J 16 24 <40 200 (for +/- 1 time) 1.5 (for 10 times) 24.5
  • Part Number Working Voltage Breakdown Voltage
    Clamping Voltage Peak Current Load Dump Jump Start Voltage
    (5min)
    Symbol DC V(1mA) V A WLD(J) V JUMP (V)
    SFI1206SA240-030J
    SFI1206SA240-060J
    SFI1206SA240-1R5J
    SFI1206SA260-060J
    SFI1206SA330-060J
    SFI1206SA360-060J
    SFI1206SA360-090J
    16
    16
    16
    16
    16
    16
    16
    24(±10%)
    24(±10%)
    24(±10%)
    24(±10%)
    33(±10%)
    36(±10%)
    36(±10%)
    <40
    <40
    <40
    <43
    <52
    <55
    <55
    400 (for +/- 1 time)
    500 (for +/- 1 time)
    400 (for +/- 1 time)
    500 (for +/- 1 time)
    200 (for +/- 1 time)
    500 (for +/- 1 time)
    500 (for +/- 1 time)
    3 (for 10 times)
    6 (for 10 times)
    1.5 (for 10 times)
    6 (for 10 times)
    6 (for 10 times)
    6 (for 10 times)
    9 (for 10 times)
    24.5
    24.5
    24.5
    26
    24.5
    24.5
    24.5
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage  Peak Current Load Dump Jump Start Voltage
    (5min)
    Symbol DC V(1mA) V A WLD(J) V JUMP (V)
    SFI1210SA101-120J
    SFI1210SA240-030J
    SFI1210SA240-060J
    SFI1210SA240-120J
    SFI1210SA750-120J
    SFI1210SA470-060J
    SFI1210SA470-120J
    16
    16
    16
    16
    16
    34
    34
    100(±10%)
    24(±10%)
    24(±10%)
    24(±10%)
    75(±10%)
    47(±10%)
    47(±10%)
    ND
    <40
    <40
    <40
    ND
    <77
    <77
    200 (for +/- 1 time)
    800 (for +/- 1 time)
    800 (for +/- 1 time)
    1000 (for +/- 1 time)
    500 (for +/- 1 time)
    500 (for +/- 1 time)
    500 (for +/- 1 time)
    12 (for 10 times)
    3 (for 10 times)
    6 (for 10 times)
    12 (for 10 times)
    12 (for 10 times)
    6 (for 10 times)
    12 (for 10 times)
    24.5
    24.5
    24.5
    24.5
    24.5
    45
    45
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Peak Current Load Dump Jump Start Voltage
    (5min)
    Symbol DC V(1mA) V A WLD(J) V JUMP (V)
    SFI1812SA240-060J
    SFI1812SA240-120J
    SFI1812SA240-200J
    SFI1812SA330-250J
    SFI1812SA360-250J
    SFI1812SA470-250J
    SFI1812SA750-250J
    16
    16
    16
    16
    16
    34
    34
    24(±10%)
    24(±10%)
    24(±10%)
    33(±10%)
    36(±10%)
    47(±10%)
    75(±10%)
    <40
    <40
    <40
    <51
    <55
    <77
    <105
    1600 (for +/- 1 time)
    1600 (for +/- 1 time)
    2000 (for +/- 1 time)
    2000 (for +/- 1 time)
    2000 (for +/- 1 time)
    2000 (for +/- 1 time)
    2000 (for +/- 1 time)
    6 (for 10 times)
    12 (for 10 times)
    20 (for 10 times)
    25 (for 10 times)
    25 (for 10 times)
    25 (for 10 times)
    20 (for 10 times)
    24.5
    24.5
    24.5
    24.5
    24.5
    45
    45
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage  Peak Current Load Dump Jump Start Voltage
    (5min)
    Symbol DC V(1mA) V A WLD(J) V JUMP (V)
    SFI2220SA240-120J
    SFI2220SA240-250J
    SFI2220SA240-400J
    SFI2220SA240-500J
    SFI2220SA260-500J
    SFI2220SA330-500J
    SFI2220SA360-500J
    SFI2220SA470-120J
    SFI2220SA470-250J
    SFI2220SA470-500J
    16
    16
    16
    16
    16
    16
    16
    34
    34
    34
    24(±10%)
    24(±10%)
    24(±10%)
    24(±10%)
    24(±10%)
    33(±10%)
    36(±10%)
    47(±10%)
    47(±10%)
    47(±10%)
    <40
    <40
    <40
    <40
    <43
    <52
    <55
    <77
    <77
    <77
    3000 (for +/- 1 time)
    3000 (for +/- 1 time)
    4000 (for +/- 1 time)
    5000 (for +/- 1 time)
    5000 (for +/- 1 time)
    5000 (for +/- 1 time)
    4000 (for +/- 1 time)
    1200 (for +/- 1 time)
    3000 (for +/- 1 time)
    4000 (for +/- 1 time)
    12 (for 10 times)
    25 (for 10 times)
    40 (for 10 times)
    50 (for 10 times)
    50 (for 10 times)
    50 (for 10 times)
    50 (for 10 times)
    12 (for 10 times)
    25 (for 10 times)
    50 (for 10 times)
    24.5
    24.5
    24.5
    24.5
    26
    24.5
    24.5
    45
    45
    45
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Peak Current Load Dump Jump Start Voltage
    (5min)
    Symbol DC V(1mA) V A WLD(J) V JUMP (V)
    SFI3220SA240-500J
    SFI3220SA240-800J
    SFI3220SA270-250J
    SFI3220SA470-500J
    SFI3220SA470-800J
    16
    16
    16
    34
    34
    24(±10%)
    24(±10%)
    27(±10%)
    47(±10%)
    47(±10%)
    <40
    <40
    <44
    <77
    <77
    5000 (for +/- 1 time)
    5000 (for +/- 1 time)
    3000 (for +/- 1 time)
    5000 (for +/- 1 time)
    5000 (for +/- 1 time)
    50 (for 10 times)
    80 (for 10 times)
    25 (for 10 times)
    50 (for 10 times)
    80 (for 10 times)
    24.5
    24.5
    24.5
    45
    45
  • Part Number Working Voltage Breakdown Voltage Clamping Voltage Peak Current Load Dump Jump Start Voltage
    (5min)
    Symbol DC V(1mA) V A WLD(J) V JUMP (V)
    SFI6420SA470-161J 34 47(±10%) <77 6000 (for +/- 1 time) 160 (for 10 times) 45
  • 0805
  • 1206
  • 1210
  • 1812
  • 2220
  • 3220
  • 6420