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Toshiba Semiconductor and Storage CSLZ30V,L3F
- Part No.:
- CSLZ30V,L3F
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- TVS Diodes
- Package:
- 2-SMD, No Lead
- Datasheet:
-
CSLZ30V,L3F.pdf
- Description:
- 30V ZNR DIODE SOD-962 OVP
- Quantity:
- Payment:
- Shipping:
Inventory:8,880
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Product details
Overview
CSLZ30V,L3F from Toshiba Electronic Devices & Storage Corporation is a silicon epitaxial planar Zener diode designed for voltage surge protection in low-power signal lines. It delivers a nominal Zener voltage of 30 V (min 28 V, max 31.5 V) at 2 mA test current, with dynamic impedance of 150 Ω and clamp voltage of 51 V under 2.5 A peak pulse current per IEC61000-4-5.
For engineers reviewing the CSLZ30V,L3F datasheet, CSLZ30V,L3F pinout, CSLZ30V,L3F application, or CSLZ30V,L3F equivalent, this device is selected for ESD-sensitive interfaces requiring precise clamping, low capacitance (7.5 pF), and high ESD robustness (±8 kV contact per IEC61000-4-2) in space-constrained designs.
Technical Context
The CSLZ30V,L3F operates as a bidirectional voltage-clamping device in reverse-biased configuration, leveraging silicon epitaxial planar junction technology for stable Zener breakdown and low leakage. Its thermal design supports 150 °C junction temperature and 400 mW power dissipation on large PCB pads.
It complies with IEC61000-4-2 (ESD) and IEC61000-4-5 (surge) standards, delivering 51 V clamping voltage at 2.5 A peak pulse current with 8/20 μs waveform, and exhibits 7.5 pF total capacitance at 0 V reverse bias - critical for preserving signal integrity in high-speed data lines.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 28–31.5 V at IZ = 2 mA - defines precise clamping threshold for overvoltage events |
| Dynamic Impedance (ZZ) | 150 Ω max at IZ = 2 mA - determines voltage rise under transient current, impacting clamping accuracy |
| Clamp Voltage (VC) | 51 V at IPP = 2.5 A (8/20 μs) - maximum voltage seen by protected circuit during surge |
| Total Capacitance (Ct) | 7.5 pF at VR = 0 V, f = 1 MHz - ensures minimal signal distortion on USB, I²C, or GPIO lines |
| ESD Withstand (Contact) | ±8 kV per IEC61000-4-2 - qualifies for industrial and consumer interface port protection |
| Peak Pulse Power (PPK) | 145 W per IEC61000-4-5 - enables single-device handling of Level 4 surge transients |
| Reverse Leakage (IR) | 23 μA max at VR = 23 V - guarantees low standby power loss in battery-powered systems |
Pinout & Package
CSLZ30V,L3F uses the SL2 surface-mount package (SOD-323F), measuring 1.7 × 1.25 × 0.9 mm (typ.), with cathode marked by a band. The package weighs 0.2 mg and is optimized for automated placement and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener anode connection point in reverse-bias operation | Connected to protected line; conducts during overvoltage to shunt current to ground |
| 2 (Anode) | Zener cathode connection point in reverse-bias operation | Typically tied to system ground or reference potential; completes clamping path |
Key Features
| Feature | Design Value |
|---|---|
| IEC61000-4-2/4-5 compliant clamping | Validated ±8 kV contact ESD and 145 W surge handling - eliminates need for external TVS staging |
| E24-series Zener voltage grading | 30 V nominal aligns with standard resistor/voltage-divider values - simplifies BOM rationalization |
| Low 7.5 pF capacitance | Preserves signal edge rate on 10+ Mbps digital interfaces without added termination or equalization |
| Small SL2 (SOD-323F) footprint | 1.7 × 1.25 mm area saves >60% board space vs. SOD-123 - ideal for wearables and IoT sensors |
| 150 °C junction rating | Enables operation in sealed enclosures or near heat sources without derating in most ambient conditions |
Applications
| USB 2.0 Data Lines | Industrial Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Protecting D+ and D− pins of USB 2.0 ports against ESD events during hot-plug insertion in factory-floor equipment. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed between data line and ground, operating in reverse breakdown during surges. Use Value: 7.5 pF capacitance avoids signal integrity degradation at 480 Mbps, while ±8 kV ESD rating meets IEC61000-4-2 Level 4 compliance. |
Use Scenario: Safeguarding analog output (4–20 mA) or digital I/O (RS-485) of pressure/temperature transmitters exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping element across signal-to-ground, activated within nanoseconds of overvoltage onset. Use Value: 51 V clamp voltage ensures downstream op-amps or ADCs remain below absolute maximum ratings during 1 kV/μs transients. |
| Automotive Body Control Modules | Smart Home Wireless Node Interfaces |
|
Use Scenario: Protecting LIN bus or switch-input lines in door modules subject to load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Low-leakage Zener clamp referenced to chassis ground, absorbing energy without false triggering. Use Value: 23 μA reverse leakage at 23 V prevents battery drain in always-on circuits; 145 W pulse rating handles ISO 7637-2 Test Pulse 1. |
Use Scenario: Shielding Zigbee or Bluetooth LE GPIOs and reset lines in battery-powered smart locks and thermostats. IC Role / Device Role / Timing Role: Standby-mode ESD protector with negligible quiescent current, activated only during human-contact discharge. Use Value: 0.2 mg weight and SL2 footprint enable integration into ultra-thin PCBs; RoHS-compliant construction supports global market access. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener-based transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DMN3016LSD-13 (Diodes Inc.) | 30 V Zener, SOD-123 package (2.7 × 1.6 mm), 100 Ω ZZ, 55 V VC @ 2.5 A | Larger footprint; higher thermal mass but lower dynamic impedance | Preferred when PCB layout allows larger pad area and tighter clamping voltage tolerance is required |
| SZ1.5SM30A (ON Semiconductor) | 30 V Zener, SMA package (4.5 × 2.7 mm), 1.5 kW PPK, 49.9 V VC @ 30 A | Higher power rating but 10× larger size and 100× higher capacitance (150 pF) | Selected for high-energy surge zones (e.g., AC input), not signal-line protection |
Compared with DMN3016LSD-13 and SZ1.5SM30A, the CSLZ30V,L3F uniquely balances ultra-low capacitance (7.5 pF), miniature SL2 packaging, and validated IEC61000-4-2/4-5 performance - making it optimal for high-density, high-speed interface protection where board space and signal fidelity are constrained.
Availability
CSLZ30V,L3F is available at Aetrix Electronics and suitable for USB interface protection, industrial sensor I/O conditioning, and automotive body electronics requiring stable component supply with full traceability and lifecycle management.
Supply support for CSLZ30V,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, miniaturization, and industrial-grade robustness.
The CSLZ Series targets compact, high-fidelity transient protection for signal-level circuits - engineered specifically for ESD/surge co-protection in space-constrained, high-speed electronic interfaces.
FAQ
What is the Zener voltage tolerance of CSLZ30V,L3F?
The CSLZ30V,L3F has a Zener voltage range of 28 V (minimum) to 31.5 V (maximum) at 2 mA test current, corresponding to ±5% tolerance around the nominal 30 V rating. This E24-series grading ensures compatibility with standard voltage-reference designs and simplifies selection across the CSLZ family. The specification is guaranteed under Ta = 25°C per Toshiba's Electrical Characteristics table.
Does CSLZ30V,L3F meet IEC61000-4-2 and IEC61000-4-5 requirements?
Yes, CSLZ30V,L3F is rated for ±8 kV contact discharge per IEC61000-4-2 and delivers 145 W peak pulse power at 2.5 A with 8/20 μs waveform per IEC61000-4-5. These values are measured and documented in Toshiba's Absolute Maximum Ratings 2 table and confirmed in the CSLZ30V-specific characteristics curves (Section 10.11). No derating or external components are needed to achieve compliance.
What is the thermal performance of CSLZ30V,L3F on a standard PCB?
CSLZ30V,L3F supports 400 mW power dissipation when mounted on a 25.4 mm × 25.4 mm glass epoxy board with 645 mm² copper pad (per Note 2), and 150 mW on smaller 20 mm × 20 mm boards (per Note 1). Its 150 °C maximum junction temperature allows reliable operation up to +85 °C ambient in typical layouts, provided trace width and copper area meet IPC-2221 guidelines for thermal relief.
Can CSLZ30V,L3F be used in bidirectional signal lines like USB D+/D−?
Yes, CSLZ30V,L3F functions as a bidirectional clamp due to its symmetrical Zener structure - it conducts in reverse breakdown for positive transients and forward conduction (≈0.7 V) for negative transients. Its 7.5 pF capacitance and low leakage (23 μA at 23 V) make it suitable for USB 2.0 differential pairs without degrading eye diagrams or increasing jitter.
What is the package type and marking code for CSLZ30V,L3F?
CSLZ30V,L3F uses the SL2 package (JEDEC MO-203-AA, equivalent to SOD-323F), with dimensions 1.7 × 1.25 × 0.9 mm. The device is marked "30" on the cathode side, consistent with Toshiba's CSLZ series marking convention shown in Section 7 of the datasheet. The "L3F" suffix denotes tape-and-reel packaging per JIS C 0806.
CSLZ30V,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):
- 23V (Max)
- Voltage - Breakdown (Min):
- 28V
- Voltage - Clamping (Max) @ Ipp:
- 51V (Typ)
- Current - Peak Pulse (10/1000µs):
- 2.5A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 7.5pF @ 1MHz
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SL2
CSLZ30V,L3F FAQ
1.How can I place an order for CSLZ30V,L3F through Aetrix?
Please submit a Request for Quotation (RFQ) for CSLZ30V,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 CSLZ30V,L3F reliable?
The price and inventory of CSLZ30V,L3F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CSLZ30V,L3F is usually 5 days.
3.What payment methods are accepted for CSLZ30V,L3F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CSLZ30V,L3F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CSLZ30V,L3F?
CSLZ30V,L3F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CSLZ30V,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 CSLZ30V,L3F?
For technical support, including CSLZ30V,L3F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CSLZ30V,L3F requirements.
6.How does Aetrix verify that CSLZ30V,L3F is sourced from the original manufacturer or authorized distributors?
All CSLZ30V,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 CSLZ30V,L3F meets industry standards.
7.What is the process for return or replacement of CSLZ30V,L3F?
All CSLZ30V,L3F units undergo pre-shipment inspection (PSI). If there is an issue with CSLZ30V,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 CSLZ30V,L3F part is unused and in its original packaging.
Return procedure for CSLZ30V,L3F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CSLZ30V,L3F Tags
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