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Zener Diodes for Over Voltage Protection that Use the Ultra-Small SOD-962 Package to Contribute to High-Density Mounting on Equipment

2022-07-25 | Return

Toshiba Electronic Devices & Storage Corporation ("Toshiba") has launched “CSLZ series” Zener diodes that protect semiconductor devices from switching surges, induced lightning surges[1], and electrostatic discharges (ESD)[2]. This lineup has 10 products having Zener voltage (typ.) ranging from 5.6 V to 30 V.

The new products protect semiconductor devices from ESD[2] in the order of nanoseconds, switching surges in the order of microseconds to milliseconds, and over voltage close to DC. By using the ultra-small package SOD-962[3]—whose mounting area is 0.1984 mm2 (typ.)—for the first time for Toshiba‘s Zener diodes, the products have reduced their footprint by about 85 % compared with Toshiba‘s current products[4] using the SOD-523[5] package, allowing high-density mounting on equipment. The products contribute to the effective use of circuit boards and higher reliability of equipment.

Notes:
[1] @IEC61000-4-5, tp=8/20 μs
[2] @IEC61000-4-2
[3] Toshiba’s package name: SL2
[4] CEZ series
[5] Toshiba’s package name: ESC

Applications
● Electronic device (IoT devices, mobile devices, etc.)

Features
● SOD-962[3] package suitable for high-density mounting: 0.62 mm × 0.32 mm × 0.3 mm (typ.)
● Allows protection from surges with wide pulse width range in the order of microseconds to milliseconds.
● Zener voltage lineups of wide range: VZ (typ.)=5.6 V to 30 V

Main Specifications

(@Ta=25 °C)

Part number	Package		Absolute maximum ratings			Zener voltage V_Z (V)		Clamp voltage V_C^[6][7] typ. (V)	Dynamic resistance R_DYN^[6] typ. (Ω)
	Package
	Name	Size typ. (mm)
			Electrostatic discharge voltage V_ESD^[2] (kV)		Peak pulse current I_PP^[1] (A)	typ.	Test current I_Z (mA)




			Contact	Air
CSLZ5V6	SOD-962^[3]	0.62 × 0.32 × 0.3	±30		2.5	5.6	5	9	0.25
CSLZ6V2						6.2		10.5	0.38
CSLZ6V8						6.8		14.5	0.5
CSLZ8V2						8.2		17	0.62
CSLZ10V						10		18	0.5
CSLZ12V			±20			12		28	1.5
CSLZ16V			±12			16		30	1.7
CSLZ20V			±12			20		30	2.5
CSLZ24V			±10			24		34	1.5
CSLZ30V			±8			30	2	51	4

Notes:
[6] TLP parameters: 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=8 A and ITLP2=16 A.
[7] ITLP=8 A

Pin Assignment

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.

Source: https://www.global.toshiba