Expanded Lineup of Surge Protection Zener Diodes that Support the Quality Improvement of Electronic Equipment by Adding New Voltage Ranks
Product News 2024-05
Toshiba has expanded the lineup with the addition of ten 10 Zener voltage ranks each to five-series[1] of Zener diodes that protect semiconductor devices from switching surges[2] and Electrostatic Discharge (ESD)[3].
The new products can protect semiconductor devices from switching surges and induced lighting surges with long pulse width in the order of microseconds to milliseconds and overvoltage comparable to DC.
In addition, the low dynamic resistance and low clamping voltage characteristics provide superior surge-absorbing capability and reduce the voltage applied to semiconductor devices, same as Toshiba’s existing lineup.
This helps to improve the quality of electronic equipment.
These packages are the industry standard SOT-23, the 3-pin packages SOT-346 (S-Mini), SOT-323 (USM), 2-pin packages SOD-323 (USC), and SOD-523 (ESC).
Furthermore, Zener voltage ranks have been added to accommodate a variety of voltage lines and mounting areas.
Notes:
[1] MKZ series, MSZ series, MUZ series, CUZ series, and CEZ series
[2] IEC61000-4-5 (tp=8/20 μs pulse)
[3] IEC61000-4-2
Applications
- Consumer equipment (home appliances, power supplies, etc.)
- Industrial equipment (OA equipment, power supplies, etc.)
Features
- Allows protection from surges with wide pulse width range in the order of microseconds to milliseconds
- Low dynamic resistance and low clamp voltage
- Adds Zener voltage to support a wide range of voltage lines:
VZ (typ.)=5.6 V to 36.0 V (Including existing products) and compatible with E24 series
Main Specifications
MKZ Series
(Ta=25 °C)
| Part number | Package | Absolute maximum ratings | Electrical characteristics | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Name Size (mm) Typ. |
Electrostatic discharge voltage VESD[3] (kV) |
Peak pulse current IPP[2] (A) |
Zener voltage VZ (V) |
Clamp voltage VC[4][5] (V) |
Dynamic resistance RDYN[4] (Ω) |
|||||
| Contact | Air | Min | Typ. | Max | Test current IZ (mA) |
Typ. | Typ. | |||
| MKZ5V6 | SOT-23 (SOT23) 2.9× 2.4× 0.9 |
±30 | 12.0 | 5.3 | 5.6 | 6.0 | 5 | 9.0 | 0.16 | |
| MKZ6V2 | 11.0 | 5.8 | 6.2 | 6.6 | 5 | 10.0 | 0.21 | |||
| MKZ6V8 | 10.0 | 6.4 | 6.8 | 7.2 | 5 | 13.0 | 0.27 | |||
| MKZ7V5[6] | 9.5 | 7.0 | 7.5 | 7.9 | 5 | 14.0 | 0.32 | |||
| MKZ8V2 | 8.5 | 7.7 | 8.2 | 8.7 | 5 | 16.5 | 0.37 | |||
| MKZ9V1[6] | 8.0 | 8.5 | 9.1 | 9.6 | 5 | 17.0 | 0.44 | |||
| MKZ10V[6] | 7.5 | 9.4 | 10.0 | 10.6 | 5 | 19.0 | 0.52 | |||
| MKZ11V[6] | 7.25 | 10.4 | 11.0 | 11.6 | 5 | 24.0 | 0.60 | |||
| MKZ12V | 7.0 | 11.4 | 12.0 | 12.6 | 5 | 26.0 | 0.70 | |||
| MKZ13V[6] | 6.5 | 12.4 | 13.0 | 14.1 | 5 | 27.0 | 0.80 | |||
| MKZ15V[6] | 5.6 | 13.8 | 15.0 | 15.6 | 5 | 24.0 | 0.60 | |||
| MKZ16V | 5.5 | 15.3 | 16.0 | 17.1 | 5 | 27.0 | 0.50 | |||
| MKZ18V[6] | 5.1 | 16.8 | 18.0 | 19.1 | 5 | 28.5 | 0.40 | |||
| MKZ20V | 5.0 | 18.8 | 20.0 | 21.2 | 5 | 30.5 | 0.35 | |||
| MKZ22V[6] | 4.75 | 20.8 | 22.0 | 23.3 | 5 | 32.0 | 0.40 | |||
| MKZ24V | 4.5 | 22.8 | 24.0 | 25.6 | 5 | 36.5 | 0.60 | |||
| MKZ27V[6] | ±20 | 4.1 | 25.1 | 27.0 | 28.9 | 2 | 45.0 | 0.90 | ||
| MKZ30V | 4.0 | 28.0 | 30.0 | 32.0 | 2 | 47.5 | 1.25 | |||
MKZ33V[6] |
±17 | 3.5 | 31.0 | 33.0 | 35.0 | 2 | 57.0 | 1.80 | ||
| ±12 | 3.0 | 34.0 | 36.0 | 38.0 | 2 | 63.0 | 2.60 | |||
MSZ Series
(Ta=25 °C)
| Part number | Package | Absolute maximum ratings | Electrical characteristics | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Name Size (mm) Typ. |
Electrostatic discharge voltage VESD[3] (kV) |
Peak pulse current IPP[2] (A) |
Zener voltage VZ (V) |
Clamp voltage VC[4][5] (V) |
Dynamic resistance RDYN[4] (Ω) |
|||||
| Contact | Air | Min | Typ. | Max | Test current IZ (mA) |
Typ. | Typ. | |||
| MSZ5V6 | SOT-346 (S-Mini) 2.9× 2.5× 1.1 |
±30 | 12.0 | 5.3 | 5.6 | 6.0 | 5 | 9.0 | 0.16 | |
| MSZ6V2 | 11.0 | 5.8 | 6.2 | 6.6 | 5 | 10.0 | 0.21 | |||
| MSZ6V8 | 10.0 | 6.4 | 6.8 | 7.2 | 5 | 13.0 | 0.27 | |||
| MSZ7V5[6] | 9.5 | 7.0 | 7.5 | 7.9 | 5 | 14.0 | 0.32 | |||
| MSZ8V2 | 8.5 | 7.7 | 8.2 | 8.7 | 5 | 16.5 | 0.37 | |||
| MSZ9V1[6] | 8.0 | 8.5 | 9.1 | 9.6 | 5 | 17.0 | 0.44 | |||
| MSZ10V[6] | 7.5 | 9.4 | 10.0 | 10.6 | 5 | 19.0 | 0.52 | |||
| MSZ11V[6] | 7.25 | 10.4 | 11.0 | 11.6 | 5 | 24.0 | 0.60 | |||
| MSZ12V | 7.0 | 11.4 | 12.0 | 12.6 | 5 | 26.0 | 0.70 | |||
| MSZ13V[6] | 6.5 | 12.4 | 13.0 | 14.1 | 5 | 27.0 | 0.80 | |||
| MSZ15V[6] | 5.6 | 13.8 | 15.0 | 15.6 | 5 | 24.0 | 0.60 | |||
| MSZ16V | 5.5 | 15.3 | 16.0 | 17.1 | 5 | 27.0 | 0.50 | |||
| MSZ18V[6] | 5.1 | 16.8 | 18.0 | 19.1 | 5 | 28.5 | 0.40 | |||
| MSZ20V | 5.0 | 18.8 | 20.0 | 21.2 | 5 | 30.5 | 0.35 | |||
| MSZ22V[6] | 4.75 | 20.8 | 22.0 | 23.3 | 5 | 32.0 | 0.40 | |||
| MSZ24V | 4.5 | 22.8 | 24.0 | 25.6 | 5 | 36.5 | 0.60 | |||
| MSZ27V[6] | ±20 | 4.1 | 25.1 | 27.0 | 28.9 | 2 | 45.0 | 0.90 | ||
| MSZ30V | 4.0 | 28.0 | 30.0 | 32.0 | 2 | 47.5 | 1.25 | |||
| MSZ33V[6] | ±17 | 3.5 | 31.0 | 33.0 | 35.0 | 2 | 57.0 | 1.80 | ||
| MSZ36V | ±12 | 3.0 | 34.0 | 36.0 | 38.0 | 2 | 63.0 | 2.60 | ||
MUZ Series
(Ta=25 °C)
| Part number | Package | Absolute maximum ratings | Electrical characteristics | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Name Size (mm) Typ. |
Electrostatic discharge voltage VESD[3] (kV) |
Peak pulse current IPP[2] (A) |
Zener voltage VZ (V) |
Clamp voltage VC[4][5] (V) |
Dynamic resistance RDYN[4] (Ω) |
|||||
| Contact | Air | Min | Typ. | Max | Test current IZ (mA) |
Typ. | Typ. | |||
| MUZ5V6 | SOT-323 (USM) 2.0× 2.1× 0.9 |
±30 | 12.0 | 5.3 | 5.6 | 6.0 | 5 | 9.0 | 0.16 | |
| MUZ6V2 | 11.0 | 5.8 | 6.2 | 6.6 | 5 | 10.0 | 0.21 | |||
| MUZ6V8 | 10.0 | 6.4 | 6.8 | 7.2 | 5 | 13.0 | 0.27 | |||
| MUZ7V5[6] | 9.5 | 7.0 | 7.5 | 7.9 | 5 | 14.0 | 0.32 | |||
| MUZ8V2 | 8.5 | 7.7 | 8.2 | 8.7 | 5 | 16.5 | 0.37 | |||
| MUZ9V1[6] | 8.0 | 8.5 | 9.1 | 9.6 | 5 | 17.0 | 0.44 | |||
| MUZ10V[6] | 7.5 | 9.4 | 10.0 | 10.6 | 5 | 19.0 | 0.52 | |||
| MUZ11V[6] | 7.25 | 10.4 | 11.0 | 11.6 | 5 | 24.0 | 0.60 | |||
| MUZ12V | 7.0 | 11.4 | 12.0 | 12.6 | 5 | 26.0 | 0.70 | |||
| MUZ13V[6] | 6.5 | 12.4 | 13.0 | 14.1 | 5 | 27.0 | 0.80 | |||
| MUZ15V[6] | 5.6 | 13.8 | 15.0 | 15.6 | 5 | 24.0 | 0.60 | |||
| MUZ16V | 5.5 | 15.3 | 16.0 | 17.1 | 5 | 27.0 | 0.50 | |||
| MUZ18V[6] | 5.1 | 16.8 | 18.0 | 19.1 | 5 | 28.5 | 0.40 | |||
| MUZ20V | 5.0 | 18.8 | 20.0 | 21.2 | 5 | 30.5 | 0.35 | |||
| MUZ22V[6] | 4.75 | 20.8 | 22.0 | 23.3 | 5 | 32.0 | 0.40 | |||
| MUZ24V | 4.5 | 22.8 | 24.0 | 25.6 | 5 | 36.5 | 0.60 | |||
| MUZ27V[6] | ±20 | 4.1 | 25.1 | 27.0 | 28.9 | 2 | 45.0 | 0.90 | ||
| MUZ30V | 4.0 | 28.0 | 30.0 | 32.0 | 2 | 47.5 | 1.25 | |||
| MUZ33V[6] | ±17 | 3.5 | 31.0 | 33.0 | 35.0 | 2 | 57.0 | 1.80 | ||
| MUZ36V | ±12 | 3.0 | 34.0 | 36.0 | 38.0 | 2 | 63.0 | 2.60 | ||
CUZ Series
(Ta=25 °C)
| Part number | Package | Absolute maximum ratings | Electrical characteristics | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Name Size (mm) Typ. |
Electrostatic discharge voltage VESD[3] (kV) |
Peak pulse current IPP[2] (A) |
Zener voltage VZ (V) |
Clamp voltage VC[4][5] (V) |
Dynamic resistance RDYN[4] (Ω) |
|||||
| Contact | Air | Min | Typ. | Max | Test current IZ (mA) |
Typ. | Typ. | |||
| CUZ5V6 | SOD-323 (USC) 2.5× 1.25× 0.9 |
±30 | 12.0 | 5.3 | 5.6 | 6.0 | 5 | 9.0 | 0.16 | |
| CUZ6V2 | 11.0 | 5.8 | 6.2 | 6.6 | 5 | 10.0 | 0.21 | |||
| CUZ6V8 | 10.0 | 6.4 | 6.8 | 7.2 | 5 | 13.0 | 0.27 | |||
| CUZ7V5[6] | 9.5 | 7.0 | 7.5 | 7.9 | 5 | 14.0 | 0.32 | |||
| CUZ8V2 | 8.5 | 7.7 | 8.2 | 8.7 | 5 | 16.5 | 0.37 | |||
| CUZ9V1[6] | 8.0 | 8.5 | 9.1 | 9.6 | 5 | 17.0 | 0.44 | |||
| CUZ10V[6] | 7.5 | 9.4 | 10.0 | 10.6 | 5 | 19.0 | 0.52 | |||
| CUZ11V[6] | 7.25 | 10.4 | 11.0 | 11.6 | 5 | 24.0 | 0.60 | |||
| CUZ12V | 7.0 | 11.4 | 12.0 | 12.6 | 5 | 26.0 | 0.70 | |||
| CUZ13V[6] | 6.5 | 12.4 | 13.0 | 14.1 | 5 | 27.0 | 0.80 | |||
| CUZ15V[6] | 5.6 | 13.8 | 15.0 | 15.6 | 5 | 24.0 | 0.60 | |||
| CUZ16V | 5.5 | 15.3 | 16.0 | 17.1 | 5 | 27.0 | 0.50 | |||
| CUZ18V[6] | 5.1 | 16.8 | 18.0 | 19.1 | 5 | 28.5 | 0.40 | |||
| CUZ20V | 5.0 | 18.8 | 20.0 | 21.2 | 5 | 30.5 | 0.35 | |||
| CUZ22V[6] | 4.75 | 20.8 | 22.0 | 23.3 | 5 | 32.0 | 0.40 | |||
| CUZ24V | 4.5 | 22.8 | 24.0 | 25.6 | 5 | 36.5 | 0.60 | |||
| CUZ27V[6] | ±20 | 4.1 | 25.1 | 27.0 | 28.9 | 2 | 45.0 | 0.90 | ||
| CUZ30V | 4.0 | 28.0 | 30.0 | 32.0 | 2 | 47.5 | 1.25 | |||
| CUZ33V[6] | ±17 | 3.5 | 31.0 | 33.0 | 35.0 | 2 | 57.0 | 1.80 | ||
| CUZ36V | ±12 | 3.0 | 34.0 | 36.0 | 38.0 | 2 | 63.0 | 2.60 | ||
CEZ Series
(Ta=25 °C)
| Part number | Package | Absolute maximum ratings | Electrical characteristics | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Name Size (mm) Typ. |
Electrostatic discharge voltage VESD[3] (kV) |
Peak pulse current IPP[2] (A) |
Zener voltage VZ (V) |
Clamp voltage VC[4][5] (V) |
Dynamic resistance RDYN[4] (Ω) |
|||||
| Contact | Air | Min | Typ. | Max | Test current IZ (mA) |
Typ. | Typ. | |||
| CEZ5V6 | SOD-523 (ESC) 1.6× 0.8× 0.6 |
±30 | 12.0 | 5.3 | 5.6 | 6.0 | 5 | 9.0 | 0.16 | |
| CEZ6V2 | 11.0 | 5.8 | 6.2 | 6.6 | 5 | 10.0 | 0.21 | |||
| CEZ6V8 | 10.0 | 6.4 | 6.8 | 7.2 | 5 | 13.0 | 0.27 | |||
| CEZ7V5[6] | 9.5 | 7.0 | 7.5 | 7.9 | 5 | 14.0 | 0.32 | |||
| CEZ8V2 | 8.5 | 7.7 | 8.2 | 8.7 | 5 | 16.5 | 0.37 | |||
| CEZ9V1[6] | 8.0 | 8.5 | 9.1 | 9.6 | 5 | 17.0 | 0.44 | |||
| CEZ10V[6] | 7.5 | 9.4 | 10.0 | 10.6 | 5 | 19.0 | 0.52 | |||
| CEZ11V[6] | 7.25 | 10.4 | 11.0 | 11.6 | 5 | 24.0 | 0.60 | |||
| CEZ12V | 7.0 | 11.4 | 12.0 | 12.6 | 5 | 26.0 | 0.70 | |||
| CEZ13V[6] | 6.5 | 12.4 | 13.0 | 14.1 | 5 | 27.0 | 0.80 | |||
| CEZ15V[6] | 5.6 | 13.8 | 15.0 | 15.6 | 5 | 24.0 | 0.60 | |||
| CEZ16V | 5.5 | 15.3 | 16.0 | 17.1 | 5 | 27.0 | 0.50 | |||
| CEZ18V[6] | 5.1 | 16.8 | 18.0 | 19.1 | 5 | 28.5 | 0.40 | |||
| CEZ20V | 5.0 | 18.8 | 20.0 | 21.2 | 5 | 30.5 | 0.35 | |||
| CEZ22V[6] | 4.75 | 20.8 | 22.0 | 23.3 | 5 | 32.0 | 0.40 | |||
| CEZ24V | 4.5 | 22.8 | 24.0 | 25.6 | 5 | 36.5 | 0.60 | |||
| CEZ27V[6] | ±20 | 4.1 | 25.1 | 27.0 | 28.9 | 2 | 45.0 | 0.90 | ||
| CEZ30V | 4.0 | 28.0 | 30.0 | 32.0 | 2 | 47.5 | 1.25 | |||
| CEZ33V[6] | ±17 | 3.5 | 31.0 | 33.0 | 35.0 | 2 | 57.0 | 1.80 | ||
| CEZ36V | ±12 | 3.0 | 34.0 | 36.0 | 38.0 | 2 | 63.0 | 2.60 | ||
Notes:
[4] TLP parameter: Z0=50 Ω, tp=100 ns, tr=300 ps, averaging window t1=30 ns to t2=60 ns, extraction of dynamic resistance using least squares fit of TLP characteristics between ITLP1=16 A and ITLP2=30 A.
[5] ITLP =16 A
[6] New products
Internal Circuits
Application Circuit Examples
Note:
The application circuits shown in this document are provided for reference purposes only.
Thorough evaluation is required, especially at the mass-production design stage.
Providing these application circuit examples does not grant any license for industrial property rights.
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