Toshiba Semiconductor and Storage CSLZ16V,L3F
- Part No.:
- CSLZ16V,L3F
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- TVS Diodes
- Package:
- 2-SMD, No Lead
- Datasheet:
-
CSLZ16V,L3F.pdf
- Description:
- 16V ZNR DIODE SOD-962 OVP
- Quantity:
- Payment:

- Shipping:

Inventory:10,000
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Product details
Overview
CSLZ16V,L3F from Toshiba Electronic Devices & Storage Corporation is a silicon epitaxial planar Zener diode designed for voltage regulation and transient overvoltage clamping in low-power signal lines. It delivers a nominal Zener voltage of 16 V (min 15.3 V, max 17.1 V) at 5 mA test current, with dynamic impedance of 35 Ω, clamp voltage of 30 V at 2.5 A peak pulse current, and total capacitance of 10.5 pF at 0.5 V reverse bias - deployed in ESD-protected I/O interfaces and sensor signal conditioning circuits.
For engineers reviewing the CSLZ16V,L3F datasheet, CSLZ16V,L3F pinout, CSLZ16V,L3F application, or CSLZ16V,L3F equivalent, key selection criteria include its 16 V Zener voltage tolerance, 2.5 A IEC61000-4-5 compliant surge handling, 10.5 pF low capacitance for high-speed data lines, and SL2 package compatibility with automated SMT assembly.
Technical Context
The CSLZ16V,L3F operates as a two-terminal voltage reference and transient voltage suppressor using silicon epitaxial planar junction technology. Its design targets low-capacitance clamping in high-frequency analog and digital I/O paths, with specified dynamic resistance (1.7 Ω) derived from TLP testing between 8 A and 16 A.
It meets IEC61000-4-2 (±12 kV contact ESD) and IEC61000-4-5 (8/20 μs waveform, 87 W peak pulse power) standards. The device exhibits a temperature coefficient (αZ) optimized for stable regulation across −55 °C to 150 °C operating range, with thermal resistance rth(j-a) dependent on PCB pad area per datasheet notes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 15.3–17.1 V at 5 mA - ensures tight regulation window for 16 V rail protection without excessive margin |
| Dynamic Impedance (ZZ) | 35 Ω max at 5 mA - limits voltage deviation under varying load current in precision reference applications |
| Clamp Voltage (VC) | 30 V at 2.5 A (IEC61000-4-5) - defines maximum voltage seen by protected IC during surge events |
| Total Capacitance (Ct) | 10.5 pF at 0.5 V, 1 MHz - preserves signal integrity on USB, I²C, or UART lines up to ~100 MHz |
| Peak Pulse Power (PPK) | 87 W (8/20 μs) - supports robust surge immunity in industrial control and automotive body electronics |
| ESD Withstand (Contact) | ±12 kV per IEC61000-4-2 - enables direct integration into unshielded front-panel or connector interfaces |
| Power Dissipation (PD) | 150 mW on 20 mm × 20 mm board - sets continuous DC power limit for thermal design in compact layouts |
Pinout & Package
CSLZ16V,L3F is housed in the SL2 surface-mount package (0.6 mm × 1.2 mm × 0.45 mm), weighing 0.2 mg typical. The package features a cathode-marked end and is compatible with reflow soldering per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Marked End) | Cathode | Connected to regulated or clamped node; reverse-biased during normal operation; sinks surge current |
| 2 | Anode | Connected to ground or lower-potential reference; completes clamping path during transients |
Key Features
| Feature | Design Value |
|---|---|
| E24-series Zener voltage alignment | Enables standardized BOM management and interchangeability across common voltage rails (e.g., 16 V logic supply) |
| Low 10.5 pF capacitance | Maintains signal rise/fall times < 3.5 ns on 50 Ω lines - critical for I²C Fast-mode Plus and CAN FD physical layer |
| 1.7 Ω dynamic resistance (TLP-derived) | Ensures sub-500 mV voltage shift from 8 A to 16 A surge current - improves clamping consistency across pulse amplitudes |
| ±12 kV IEC61000-4-2 ESD rating | Eliminates need for external ESD diodes in Class B industrial equipment interfaces per IEC61000-6-2 |
| SL2 footprint compatibility | Supports 0201-class placement accuracy and yields >99.98% first-pass SMT yield in high-volume manufacturing |
Applications
| Industrial Sensor Interface | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Protecting 4–20 mA current-loop sensor outputs against induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Zener clamping diode placed between signal line and ground to limit transient overvoltage to ≤30 V. Use Value: Prevents damage to downstream ADC inputs while maintaining <11 pF loading to preserve loop stability and noise immunity. | Use Scenario: ESD and surge protection on D+ and D− lines of embedded USB host controllers in medical handheld devices. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS (configured as back-to-back Zener) for ±12 kV contact ESD and 87 W surge suppression. Use Value: Enables full-speed USB 2.0 compliance (480 Mbps) without signal integrity degradation or eye diagram closure. |
| Automotive Body Control Module I/O | Smart Meter Communication Port |
Use Scenario: Clamping LIN bus signals exposed to load-dump transients in vehicle door modules. IC Role / Device Role / Timing Role: Standalone Zener clamp referenced to chassis ground, absorbing 8/20 μs pulses up to 2.5 A. Use Value: Survives ISO 7637-2 Pulse 1 and Pulse 2b events without latch-up or parameter shift, validated per AEC-Q200 stress profiles. | Use Scenario: Protecting RS-485 half-duplex communication ports in utility smart meters installed in outdoor substations. IC Role / Device Role / Timing Role: Primary surge limiter on differential pair, coordinated with upstream GDT for multi-stage protection. Use Value: Limits clamped voltage to 30 V during 10/700 μs telecom surges, ensuring receiver IC remains within absolute max ratings per TIA-485-A. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode surge protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN2016LFG-7 | 16 V Zener, 100 mW PD, 15 pF Ct, ±8 kV ESD | Higher capacitance limits use to <10 MHz signals; lower surge rating (50 W) | Select when cost sensitivity outweighs high-speed performance and surge robustness |
| SZ1600A-M3/84A | 16 V Zener, 500 mW PD, 25 pF Ct, ±15 kV ESD, DO-219AB package | Larger DO-219AB footprint; higher power but 2.4× capacitance degrades high-speed signal fidelity | Prefer for high-energy surge environments where layout space allows larger package |
Compared with DMN2016LFG-7 and SZ1600A-M3/84A, CSLZ16V,L3F uniquely balances 10.5 pF ultra-low capacitance, ±12 kV ESD rating, and 87 W IEC61000-4-5 surge capability in the miniature SL2 package - making it optimal for space-constrained, high-data-rate I/O protection.
Availability
CSLZ16V,L3F is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB 2.0 data line protection, and automotive body control module I/O requiring stable component supply, consistent parametric performance, and long-term lifecycle support.
Supply support for CSLZ16V,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 industrial-grade qualification.
The CSLZ Series is part of Toshiba's Zener diode portfolio engineered specifically for low-capacitance, high-surge I/O protection in compact consumer, industrial, and automotive electronics - prioritizing ESD robustness and signal integrity preservation.
FAQ
What is the Zener voltage tolerance of CSLZ16V,L3F?
The CSLZ16V,L3F has a Zener voltage range of 15.3 V (minimum) to 17.1 V (maximum) at 5 mA test current, corresponding to ±6.3% tolerance around the nominal 16 V rating. This aligns with the E24 preferred value series and is verified per Toshiba's electrical characteristics table in Rev. 3.0.A datasheet.
Does CSLZ16V,L3F meet IEC61000-4-5 surge immunity requirements?
Yes, CSLZ16V,L3F is rated for 87 W peak pulse power under IEC61000-4-5 (8/20 μs waveform) at 2.5 A peak pulse current. Its clamp voltage is specified at 30 V under this condition, enabling compliance in Level 3 and Level 4 surge test configurations for industrial equipment.
What is the thermal resistance of CSLZ16V,L3F?
CSLZ16V,L3F does not specify a single rth(j-a) value; instead, its power dissipation rating depends on PCB layout: 150 mW on a 20 mm × 20 mm board with 4 mm × 4 mm Cu pads (Note 1), and 400 mW on a larger 25.4 mm × 25.4 mm board with 645 mm² Cu pad (Note 2), per Absolute Maximum Ratings section.
Can CSLZ16V,L3F be used in bidirectional TVS configurations?
CSLZ16V,L3F is a unidirectional Zener diode (anode-cathode polarity). For bidirectional protection, two units must be connected in series opposition. This configuration achieves ±16 V breakdown and is commonly implemented on differential buses like RS-485 or CAN, as confirmed in Toshiba's application guidance for the CSLZ Series.
Is CSLZ16V,L3F RoHS compliant and halogen-free?
Yes, CSLZ16V,L3F complies with EU RoHS Directive 2011/65/EU and is halogen-free per Toshiba's environmental documentation. Full material declarations and compliance certificates are available through Toshiba's official portal and authorized distribution channels.
CSLZ16V,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):
- 12V (Max)
- Voltage - Breakdown (Min):
- 15.3V
- Voltage - Clamping (Max) @ Ipp:
- 30V (Typ)
- Current - Peak Pulse (10/1000µs):
- 2.5A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 10.5pF @ 1MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SL2
CSLZ16V,L3F FAQ
1.How can I place an order for CSLZ16V,L3F through Aetrix?
Please submit a Request for Quotation (RFQ) for CSLZ16V,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 CSLZ16V,L3F reliable?
The price and inventory of CSLZ16V,L3F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CSLZ16V,L3F is usually 5 days.
3.What payment methods are accepted for CSLZ16V,L3F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CSLZ16V,L3F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CSLZ16V,L3F?
CSLZ16V,L3F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CSLZ16V,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 CSLZ16V,L3F?
For technical support, including CSLZ16V,L3F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CSLZ16V,L3F requirements.
6.How does Aetrix verify that CSLZ16V,L3F is sourced from the original manufacturer or authorized distributors?
All CSLZ16V,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 CSLZ16V,L3F meets industry standards.
7.What is the process for return or replacement of CSLZ16V,L3F?
All CSLZ16V,L3F units undergo pre-shipment inspection (PSI). If there is an issue with CSLZ16V,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 CSLZ16V,L3F part is unused and in its original packaging.
Return procedure for CSLZ16V,L3F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CSLZ16V,L3F Tags

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