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Diodes Incorporated ZLLS1000TA
- Part No.:
- ZLLS1000TA
- Manufacturer:
- Diodes Incorporated
- Category:
- Single Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
ZLLS1000TA.pdf
- Description:
- DIODE SCHOTTKY 40V 1.16A SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:71,464
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Product details
Overview
ZLLS1000TA from Diodes Incorporated is a 40V, 1.16A high-current low-leakage Schottky diode in SOT23 package, featuring 320mV typical forward voltage at 50mA, 6μA typical reverse leakage at 30V, and AEC-Q101 qualification for automotive-grade reliability-used in DC-DC converter output rectification and mobile phone charging circuits.
For engineers reviewing the ZLLS1000TA datasheet, ZLLS1000TA pinout, ZLLS1000TA application, or ZLLS1000TA equivalent, key selection criteria include reverse leakage at elevated temperature (20μA @30V/85°C), thermal resistance junction-to-lead (80°C/W), safe operating area under 10ms pulses, and SOT23-compatible layout with cathode/anode/NC terminals.
Technical Context
This Schottky diode employs a planar epitaxial construction optimized for low VF and ultra-low IR trade-off, with junction temperature rated to +150°C and thermally enhanced SOT23 leadframe design enabling 1.18W power dissipation under short-duration pulse conditions.
It delivers fast switching performance (tRR = 5ns typical) and low capacitive loading (CD = 28pF @1MHz/30V), making it suitable for high-frequency synchronous rectification where reverse recovery loss and EMI must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VR (Reverse Voltage) | 40V - Maximum continuous blocking voltage without breakdown; sets upper limit for input/output rail separation in buck converters. |
| IF (Forward Current) | 1.16A - Continuous DC current rating at 25°C ambient; defines steady-state conduction capability in charging paths. |
| VF @50mA | 320mV typ - Low forward drop reduces conduction loss and self-heating in portable power stages. |
| IR @30V/25°C | 5μA typ - Ultra-low leakage preserves battery standby time in always-on circuits like USB-C port controllers. |
| tRR | 5ns typ - Enables operation up to ~100MHz switching frequencies with minimal reverse recovery loss. |
| RθJL | 80°C/W - Junction-to-lead thermal resistance supports direct PCB copper pour heat sinking for compact layouts. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive electronics including temperature cycling and HTRB. |
Pinout & Package
SOT23 three-terminal surface-mount package with exposed leadframe for thermal enhancement; case outline conforms to JEDEC TO-236AB standard; weight 0.008g; UL 94V-0 rated epoxy molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Current entry point | Connected to lower-potential node (e.g., switch node in buck topology); requires low-inductance trace routing. |
| Cathode (C) | Current exit point | Connected to output rail or ground return; primary heat path to PCB copper via soldered lead. |
| No Connect (N/C) | Unused terminal | Internally unconnected; must remain floating-no biasing or routing required. |
Key Features
| Feature | Design Value |
|---|---|
| Low VF with high IF rating | 320mV @50mA and 1.16A continuous enable >92% efficiency in 5V-input DC-DC stages at light load. |
| 6μA IR @30V/25°C | Reduces standby power loss by >5× vs standard Schottkys, critical for battery-backed real-time clocks. |
| SOT23 thermal rating to +150°C | Allows placement near hot components (e.g., power inductors) without derating in industrial motor drives. |
| AEC-Q101 qualification | Validates robustness against thermal shock, humidity, and mechanical stress for under-hood automotive modules. |
Applications
| DC-DC Converters | Mobile Phone Charging |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 3.3V/5V buck converters powering SoCs and PMICs. IC Role / Device Role: Low-loss freewheeling path replacing MOSFET gate drive complexity. Use Value: 320mV VF cuts conduction loss by 40% vs. 500mV alternatives, improving light-load efficiency by 3–5%. | Use Scenario: USB-C PD input protection and reverse polarity blocking in smartphone charging ICs. IC Role / Device Role: Input-side reverse voltage clamp preventing damage during adapter hot-plug events. Use Value: 6μA leakage at 30V extends battery shelf life beyond 12 months in shipped devices. |
| Strobe Circuits | Motor Control |
Use Scenario: High-current discharge path in camera flash capacitor banks requiring sub-10ns turn-off. IC Role / Device Role: Fast-recovery flyback diode limiting voltage overshoot during capacitor dump. Use Value: 5ns tRR ensures <1.5V overshoot with 500mA di/dt, protecting LED driver ICs from overvoltage. | Use Scenario: Freewheeling path across brushed DC motor windings in automotive window lift modules. IC Role / Device Role: Inductive energy recirculation path during PWM off-time. Use Value: AEC-Q101 qualification guarantees operation at 125°C ambient with no parametric shift over 15-year vehicle life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ZHCS1000TA | Same electrical specs but rated for -55°C to +125°C (vs. +150°C for ZLLS1000TA); identical SOT23 pinout. | Preferred for low-temperature industrial sensors; not qualified to AEC-Q101. | Select ZHCS1000TA only when extended low-temp operation is required and automotive qualification is unnecessary. |
| SBM130LT3G | Higher VF (420mV @50mA), higher IR (100μA @30V), same 40V VR and SOT23 package. | Acceptable for cost-sensitive consumer chargers where leakage and efficiency are secondary. | Choose SBM130LT3G only if BOM cost reduction outweighs 12% higher conduction loss and 20× leakage penalty. |
Compared with ZHCS1000TA and SBM130LT3G, ZLLS1000TA uniquely combines AEC-Q101 qualification, +150°C junction rating, and 6μA leakage-making it the sole option for thermally demanding automotive power modules requiring long-term parametric stability.
Availability
ZLLS1000TA is available at Aetrix Electronics and suitable for DC-DC converters, mobile phone charging circuits, and automotive motor control systems requiring stable component supply across multi-year production cycles.
Supply support for ZLLS1000TA 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design centers across Asia and manufacturing in China, Taiwan, and the US.
ZLLS1000TA belongs to Diodes' high-reliability Schottky diode product line, engineered specifically for automotive and industrial power conversion where low leakage, thermal robustness, and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum allowable junction temperature for ZLLS1000TA?
The absolute maximum junction temperature is +150°C, validated per AEC-Q101 thermal stress testing. Derating begins above +25°C ambient using RθJA = 155°C/W on standard FR-4, with full 1.16A rating maintained up to +85°C ambient when mounted on 25mm × 25mm 1oz copper.
Is ZLLS1000TA pin-compatible with ZHCS1000TA?
Yes-both use identical SOT23 pinout (Anode, Cathode, N/C) and marking code L10. However, ZHCS1000TA lacks AEC-Q101 qualification and has reduced high-temperature capability (+125°C vs. +150°C), so substitution requires revalidation in automotive applications.
How does the N/C terminal affect PCB layout?
The N/C terminal is internally unconnected and must remain electrically floating-no trace routing, vias, or copper pour should contact it. Its presence maintains mechanical symmetry in the SOT23 mold, but connecting it risks parasitic coupling or thermal imbalance in high-frequency layouts.
What is the typical reverse recovery charge (QRR) value?
QRR is 350nC typical under test conditions of IF = 500mA switched to VR = 5.5V with di/dt = 500mA/ns. This low value minimizes switching loss in high-frequency (>500kHz) DC-DC topologies and reduces EMI generation compared to standard silicon diodes.
ZLLS1000TA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 1.16A
- Voltage - Forward (Vf) (Max) @ If:
- 560 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 5 ns
- Current - Reverse Leakage @ Vr:
- 20 µA @ 30 V
- Capacitance @ Vr, F:
- 28pF @ 30V, 1MHz
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
- Operating Temperature - Junction:
- 150°C (Max)
ZLLS1000TA FAQ
1.How can I place an order for ZLLS1000TA through Aetrix?
Please submit a Request for Quotation (RFQ) for ZLLS1000TA 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 ZLLS1000TA reliable?
The price and inventory of ZLLS1000TA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ZLLS1000TA is usually 5 days.
3.What payment methods are accepted for ZLLS1000TA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ZLLS1000TA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ZLLS1000TA?
ZLLS1000TA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ZLLS1000TA 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 ZLLS1000TA?
For technical support, including ZLLS1000TA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ZLLS1000TA requirements.
6.How does Aetrix verify that ZLLS1000TA is sourced from the original manufacturer or authorized distributors?
All ZLLS1000TA 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 ZLLS1000TA meets industry standards.
7.What is the process for return or replacement of ZLLS1000TA?
All ZLLS1000TA units undergo pre-shipment inspection (PSI). If there is an issue with ZLLS1000TA, 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 ZLLS1000TA part is unused and in its original packaging.
Return procedure for ZLLS1000TA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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