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Toshiba Semiconductor and Storage CSLZ6V8,L3F
- Part No.:
- CSLZ6V8,L3F
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- TVS Diodes
- Package:
- 2-SMD, No Lead
- Datasheet:
-
CSLZ6V8,L3F.pdf
- Description:
- 6.8V ZNR DIODE SOD-962 OVP
- Quantity:
- Payment:
- Shipping:
Inventory:6,048
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Product details
Overview
CSLZ6V8,L3F from Toshiba Electronic Devices & Storage Corporation is a silicon epitaxial planar Zener diode designed for voltage regulation and transient overvoltage protection in low-power signal lines. It delivers a nominal Zener voltage of 6.8 V (min 6.4 V, max 7.2 V) at 5 mA test current, with dynamic impedance ≤30 Ω, clamp voltage of 14.5 V at 2.5 A peak pulse current, and ESD robustness of ±30 kV (contact). It is used in I/O port protection for microcontroller-based industrial sensors.
For engineers reviewing the CSLZ6V8,L3F datasheet, CSLZ6V8,L3F pinout, CSLZ6V8,L3F application, or CSLZ6V8,L3F equivalent, key selection criteria include its 150 mW steady-state power rating on small PCB pads, 40 W peak pulse power per IEC61000-4-5, low 0.5 pF junction capacitance, and SL2 surface-mount package compatibility with high-density layouts.
Technical Context
The CSLZ6V8,L3F operates as a precision shunt regulator and transient voltage suppressor in DC bias networks and data line interfaces. Its Zener breakdown mechanism provides stable reference voltage under reverse bias, while its low dynamic resistance (≤30 Ω) ensures tight regulation across 5 mA to 20 mA operating range.
Designed for compliance with IEC61000-4-2 (ESD) and IEC61000-4-5 (surge), it clamps transients to ≤14.5 V at 2.5 A with 8/20 μs waveform, and exhibits only 0.5 μA reverse leakage at 5.0 V - enabling use in battery-powered systems where standby current matters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.4–7.2 V (min–max) at 5 mA - ensures stable reference within ±5% tolerance for supply rail monitoring |
| Dynamic Impedance (ZZ) | ≤30 Ω - minimizes output voltage variation under load changes in regulation circuits |
| Clamp Voltage (VC) | 14.5 V at 2.5 A peak pulse - limits surge energy to safe levels for downstream logic ICs |
| Junction Capacitance (Ct) | 25 pF at 0 V, 1 MHz - preserves signal integrity in <10 MHz digital I/O and sensor interfaces |
| Power Dissipation (PD) | 150 mW on 4 mm × 4 mm pad - supports thermal reliability in compact consumer and industrial PCBs |
| ESD Withstand (Contact) | ±30 kV per IEC61000-4-2 - eliminates need for external ESD diodes in USB, UART, and GPIO protection |
| Reverse Leakage (IR) | 0.5 μA at 5.0 V - enables ultra-low quiescent current in always-on sensing nodes |
Pinout & Package
CSLZ6V8,L3F uses the SL2 surface-mount package (0.6 mm × 1.2 mm, 0.2 mg typical weight), optimized for automated placement and reflow soldering. The device has two terminals in a cathode-anode configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked) | Cathode | Connected to regulated or protected node; conducts when voltage exceeds VZ |
| 2 | Anode | Typically grounded or connected to lower-potential rail; completes conduction path during clamping |
Key Features
| Feature | Design Value |
|---|---|
| E24-series Zener voltage | 6.8 V nominal aligns with standard resistor/voltage-divider design practices and simplifies BOM rationalization |
| Low-clamp-voltage transient suppression | 14.5 V clamping at 2.5 A protects 3.3 V and 5 V logic without requiring series current limiting resistors |
| Ultra-low junction capacitance | 25 pF enables use on high-speed analog sensor outputs (e.g., thermistor bridges, ADC references) without bandwidth degradation |
| High ESD immunity | ±30 kV contact discharge withstand eliminates secondary ESD protection components in front-end interface stages |
| Small-outline SL2 package | 0.6 mm × 1.2 mm footprint saves >60% board area vs. SOD-323, critical for wearables and miniaturized IoT modules |
Applications
| Industrial Sensor Interface | USB-C Port Protection |
|---|---|
|
Use Scenario: Protecting analog output pins of temperature/humidity sensors exposed to ESD events during field servicing. IC Role / Device Role / Timing Role: Shunt clamping diode placed between sensor output and ground to divert ESD strikes before reaching ADC input. Use Value: 0.5 μA leakage and 25 pF capacitance prevent measurement drift or noise coupling in sub-16-bit precision systems. |
Use Scenario: Safeguarding CC and VCONN lines in USB-C receptacles against hot-plug transients and contact ESD. IC Role / Device Role / Timing Role: Low-capacitance Zener clamp absorbing ±30 kV ESD pulses while maintaining signal integrity up to 10 Mbps. Use Value: 14.5 V clamping voltage ensures downstream USB PD controllers remain within absolute maximum ratings during surge events. |
| Microcontroller GPIO Protection | Automotive Body Control Module Inputs |
|
Use Scenario: Hardening push-button and rotary encoder inputs on ARM Cortex-M based control panels against user-induced ESD. IC Role / Device Role / Timing Role: Bidirectional transient suppressor (anode grounded) providing fast response (<1 ns) to negative and positive transients. Use Value: SL2 package allows placement directly at connector entry point, minimizing trace inductance and improving clamping effectiveness. |
Use Scenario: Protecting LIN bus input pins in door module ECUs from load dump and jump-start induced surges. IC Role / Device Role / Timing Role: Standby Zener regulator holding bias voltage stable during 12 V rail fluctuations, while clamping spikes above 14.5 V. Use Value: 150 °C junction temperature rating supports operation in engine bay-adjacent mounting locations without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN2016LFG-7 | 100 mW PD, 12 V VZ, SOT-723 package, 45 pF Ct | Higher clamp voltage (19.5 V), higher capacitance - less suitable for 3.3 V logic protection | Select CSLZ6V8,L3F for 6.8 V regulation and lower capacitance; choose DMN2016LFG-7 only if higher VZ and legacy SOT-723 footprint required |
| BZX584C6V8 | 250 mW PD, same 6.8 V VZ, SOD-523 package, 30 pF Ct, 20 kV ESD | Larger footprint (1.2 mm × 0.8 mm), lower ESD rating - requires more board space and additional ESD hardening | Prefer CSLZ6V8,L3F for space-constrained designs needing ±30 kV ESD; BZX584C6V8 suits cost-sensitive, non-ESD-critical applications |
Compared with DMN2016LFG-7 and BZX584C6V8, CSLZ6V8,L3F uniquely combines ±30 kV ESD immunity, 25 pF capacitance, and SL2 footprint - making it optimal for high-density, ESD-prone interfaces like portable medical sensors and USB peripherals.
Availability
CSLZ6V8,L3F is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB-C port protection, and microcontroller GPIO hardening requiring stable component supply, consistent parametric performance, and full traceability across production lots.
Supply support for CSLZ6V8,L3F includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Toshiba Electronic Devices & Storage Corporation designs and manufactures discrete semiconductors, power devices, and logic ICs with emphasis on reliability, efficiency, and automotive-grade qualification.
The CSLZ Series is part of Toshiba's precision Zener diode portfolio engineered specifically for low-capacitance, high-ESD-survivability transient suppression in space-constrained, battery-operated, and industrial I/O applications.
FAQ
What is the Zener voltage tolerance of CSLZ6V8,L3F?
The CSLZ6V8,L3F has a Zener voltage range of 6.4 V (minimum) to 7.2 V (maximum) at 5 mA test current, corresponding to ±5% tolerance around the nominal 6.8 V rating. This E24-series alignment ensures compatibility with standard voltage divider and bias network designs. The specification is guaranteed under Ta = 25°C and is validated per Toshiba's production test flow.
Does CSLZ6V8,L3F support bidirectional ESD protection?
No - CSLZ6V8,L3F is a unidirectional Zener diode configured for reverse-bias operation only. It functions as a cathode-grounded shunt clamp. For bidirectional protection, two CSLZ6V8,L3F devices must be used in series opposition (anode-to-anode), or a dedicated bidirectional TVS such as DF2S7.5M should be selected instead.
What is the thermal resistance of CSLZ6V8,L3F on a standard PCB?
When mounted on a 20 mm × 20 mm glass epoxy board with 4 mm × 4 mm Cu pads, CSLZ6V8,L3F achieves a junction-to-ambient thermal resistance (Rth(j-a)) of approximately 833°C/W, enabling 150 mW continuous dissipation at 25°C ambient. Derating is required above 25°C per Toshiba's published Rth(j-a)-tw curves.
Can CSLZ6V8,L3F be used in place of a standard 1N4734A?
No - CSLZ6V8,L3F is not a drop-in replacement for 1N4734A. While both regulate near 6.8 V, the 1N4734A is a 1 W through-hole Zener with DO-41 package and ~5 Ω impedance, whereas CSLZ6V8,L3F is a 150 mW SL2 surface-mount device with 30 Ω impedance and optimized for ESD/surge clamping, not power regulation. Substitution requires full circuit revalidation.
Is CSLZ6V8,L3F RoHS and REACH compliant?
Yes - CSLZ6V8,L3F meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006 requirements, as confirmed by Toshiba's material declarations and compliance documentation. Lead-free soldering compatible, with MSL level 1 rating and no moisture sensitivity restrictions for standard reflow profiles.
CSLZ6V8,L3F Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Package/Case:
- 2-SMD, No Lead
- Series:
- CSLZ
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V (Typ)
- Current - Peak Pulse (10/1000µs):
- 2.5A (8/20µs)
- Power - Peak Pulse:
- 105W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 25pF @ 1MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SL2
CSLZ6V8,L3F FAQ
1.How can I place an order for CSLZ6V8,L3F through Aetrix?
Please submit a Request for Quotation (RFQ) for CSLZ6V8,L3F on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CSLZ6V8,L3F reliable?
The price and inventory of CSLZ6V8,L3F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CSLZ6V8,L3F is usually 5 days.
3.What payment methods are accepted for CSLZ6V8,L3F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CSLZ6V8,L3F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CSLZ6V8,L3F?
CSLZ6V8,L3F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CSLZ6V8,L3F order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CSLZ6V8,L3F?
For technical support, including CSLZ6V8,L3F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CSLZ6V8,L3F requirements.
6.How does Aetrix verify that CSLZ6V8,L3F is sourced from the original manufacturer or authorized distributors?
All CSLZ6V8,L3F products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CSLZ6V8,L3F meets industry standards.
7.What is the process for return or replacement of CSLZ6V8,L3F?
All CSLZ6V8,L3F units undergo pre-shipment inspection (PSI). If there is an issue with CSLZ6V8,L3F, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CSLZ6V8,L3F part is unused and in its original packaging.
Return procedure for CSLZ6V8,L3F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CSLZ6V8,L3F Tags
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