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Renesas HZS3CLLTA-E
- Part No.:
- HZS3CLLTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS3CLLTA-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
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Inventory:25,000
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Product details
Overview
HZS3CLLTA-E from Renesas Electronics is a silicon planar Zener diode optimized for hard-knee, low-noise voltage reference applications at low currents (1 nA to 1 mA), with a nominal Zener voltage of 3.3 V (min 3.1 V, max 3.5 V), dynamic impedance of 360 Ω at IZT = 0.5 mA, and temperature coefficient of ±0.5 mV/°C - used in precision analog front-ends and sensor biasing circuits.
For engineers reviewing the HZS3CLLTA-E datasheet, HZS3CLLTA-E pinout, HZS3CLLTA-E application, or HZS3CLLTA-E equivalent, key selection criteria include low-current knee sharpness, sub-1 µA reverse leakage, stable 3.3 V regulation under thermal drift, and compatibility with 5 mm-pitch automated insertion in space-constrained PCB layouts.
Technical Context
The HZS3CLLTA-E employs a planar diffusion structure to achieve semilogarithmic linear Vz–Iz characteristics across 1 nA–1 mA, enabling precise low-current regulation where conventional Zeners exhibit soft breakdown. Its hard-knee behavior minimizes voltage hysteresis during current transients.
Designed for operation at IZK = 0.5 µA and IZT = 0.5 mA, it delivers lower dynamic impedance (360 Ω typ.) and reduced noise versus legacy zeners - critical for high-resolution ADC references and low-power IoT sensor nodes requiring stable bias below 10 µA quiescent current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.1 V min to 3.5 V max at IZ = 0.5 mA - ensures tight 3.3 V nominal reference for ±3% tolerance systems without trimming. |
| Dynamic Impedance (ZZT) | 360 Ω typical at IZT = 0.5 mA - maintains <1 mV output shift per 100 µA load change in low-current reference rails. |
| Reverse Current (IR) | 100 nA max at VR = 1.0 V - enables ultra-low standby leakage in battery-backed voltage monitors. |
| Zener Knee Linearity (∆VZ1) | 0.5 V max between IZ = 0.05 mA and 0.5 mA - guarantees monotonic, predictable regulation onset for analog comparators. |
| Power Dissipation (Pd) | 250 mW max - supports continuous operation at 3.3 V / 75 mA or pulsed bias in compact SMT footprints. |
| Junction Temperature (Tj) | 175 °C max - allows deployment in industrial ambient environments up to +125 °C with derated power. |
Pinout & Package
Package: MHD (JEITA GRZZ0002ZC-A), molded plastic, 2-pin axial-lead equivalent footprint with cathode band marking; dimensions: φD = 2.0 mm max, L = 26.0 mm min, mass = 0.084 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to higher potential node; reverse-biased terminal where Zener breakdown occurs - must be routed with low-inductance trace for noise-sensitive references. |
| 2 | Anode | Connected to circuit ground or lower potential; serves as return path for Zener current - requires low-impedance grounding to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Hard-knee breakdown | Vz–Iz linearity maintained from 1 nA to 1 mA - eliminates ambiguity in turn-on threshold for micro-power wake-up circuits. |
| Low dynamic impedance | 360 Ω typical at 0.5 mA - reduces output voltage ripple by >90% vs. standard zeners under same AC load modulation. |
| Low noise performance | ≈1/10 noise of conventional zeners in 10 Hz–10 kHz band - enables use in 16-bit+ SAR ADC reference buffers without external filtering. |
| Temperature-stable Vz | ±0.5 mV/°C tempco - limits drift to ±0.63 V over –40°C to +85°C ambient, suitable for uncalibrated industrial sensors. |
Applications
| High-Resolution Sensor Biasing | Precision Analog Front-End Reference |
|---|---|
Use Scenario: Providing stable excitation voltage to resistive bridge sensors (e.g., strain gauges, RTDs) in portable instrumentation. IC Role / Device Role / Timing Role: Low-noise, low-current Zener reference source replacing buffered op-amp references to reduce quiescent power. Use Value: Enables <1 µVpp noise floor and <0.01% linearity error in 24-bit sigma-delta measurements at 10 µA total supply current. |
Use Scenario: Generating clean 3.3 V reference for SAR ADCs in battery-powered data loggers. IC Role / Device Role / Timing Role: Primary voltage reference element in analog signal chain, directly connected to REF+ pin. Use Value: Eliminates need for external LDO or reference IC, reducing BOM count and PCB area while maintaining ±0.5 LSB INL over temperature. |
| Low-Power Microcontroller Reset Circuit | IoT Node Voltage Monitor |
Use Scenario: Threshold detection for brown-out reset in ARM Cortex-M0+ MCUs operating at 3.3 V supply. IC Role / Device Role / Timing Role: Zener-based comparator input reference with hysteresis network. Use Value: Achieves reliable reset assertion at 2.97 V with <100 nA standby current - extends coin-cell life beyond 10 years. |
Use Scenario: Monitoring Li-ion cell voltage during deep-sleep mode in BLE beacons. IC Role / Device Role / Timing Role: Low-leakage voltage threshold detector feeding GPIO interrupt pin. Use Value: Detects <3.0 V cutoff with ±10 mV accuracy using only passive components, consuming <200 nA total system current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C3V3 (Diodes Inc.) | Higher ZZT (600 Ω typ.), wider VZ tolerance (3.15–3.45 V), 350 mW Pd rating. | Less suitable for sub-1 µA biasing; better for higher-current regulator shunts. | Choose for cost-sensitive, non-critical 3.3 V clamping where noise and knee sharpness are secondary. |
| MMSZ4685 (ON Semiconductor) | Softer knee (higher ∆VZ1), 500 Ω ZZT, 500 mW Pd, ±2% VZ tolerance. | Higher leakage (500 nA @ 1 V) limits use in nanoampere-sleep systems. | Prefer when board-level ESD robustness (30 kV HBM) and higher surge handling outweigh low-noise requirements. |
Compared with BZX84-C3V3 and MMSZ4685, the HZS3CLLTA-E provides superior low-current regulation fidelity and lower noise - making it the preferred choice for precision analog sensing and ultra-low-power monitoring where VZ stability below 1 µA defines system accuracy.
Availability
HZS3CLLTA-E is available at Aetrix Electronics and suitable for high-resolution sensor biasing, precision analog front-end reference, and low-power microcontroller reset circuits requiring stable component supply, long-lifecycle availability, and RoHS-compliant sourcing.
Supply support for HZS3CLLTA-E 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
Renesas Electronics Corporation is a global semiconductor leader delivering microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT applications.
The HZS-LL Series was designed specifically for low-noise, hard-knee Zener reference applications in space- and power-constrained systems - targeting precision analog measurement, sensor excitation, and micro-power voltage monitoring.
FAQ
What is the Zener voltage tolerance of HZS3CLLTA-E at 0.5 mA test current?
The HZS3CLLTA-E has a specified Zener voltage range of 3.1 V minimum to 3.5 V maximum when measured at IZ = 0.5 mA, yielding a nominal 3.3 V with ±3.0% tolerance. This tight spread supports untrimmed reference designs in industrial sensor modules where calibration overhead must be minimized. The HZS3CLLTA-E datasheet confirms this range under DC test conditions per REJ03G0167-0300 Rev.3.00.
Does HZS3CLLTA-E support operation below 1 µA reverse current?
Yes, the HZS3CLLTA-E is characterized down to 1 nA reverse current, with semilogarithmic linear Vz–Iz behavior confirmed from 1 nA to 1 mA. Its hard-knee performance at sub-microamp levels makes it suitable for ultra-low-power wake-up comparators and energy-harvesting circuits. The HZS3CLLTA-E achieves stable regulation even at IZ = 100 nA, as validated in Figure 1 of the official Renesas datasheet.
What is the maximum junction temperature rating for HZS3CLLTA-E?
The HZS3CLLTA-E has a maximum junction temperature (Tj) rating of 175 °C, allowing reliable operation in high-ambient industrial environments when properly derated per the power dissipation vs. ambient temperature curve in Figure 3. This rating supports continuous use in enclosed enclosures up to +125 °C ambient, provided PCB copper area and airflow meet Renesas' thermal guidelines for the MHD package.
Is HZS3CLLTA-E RoHS compliant and lead-free?
Yes, HZS3CLLTA-E is RoHS compliant and lead-free, consistent with Renesas Electronics' environmental policy and EU Directive 2011/65/EU. The device uses halogen-free molding compound and meets JEDEC J-STD-020 moisture sensitivity level (MSL) requirements for surface-mount assembly. Compliance documentation is available through Renesas' official product page and Aetrix Electronics' material declarations for HZS3CLLTA-E.
How does the temperature coefficient of HZS3CLLTA-E compare to standard Zener diodes?
The HZS3CLLTA-E exhibits a Zener voltage temperature coefficient (γZ) of ±0.5 mV/°C - significantly tighter than standard 3.3 V Zeners (typically ±2.0 mV/°C). This results in only ±0.63 V drift over –40°C to +85°C, enabling accurate voltage referencing in unregulated thermal environments. The HZS3CLLTA-E achieves this via optimized planar diffusion geometry, as detailed in Figure 2 of the Renesas datasheet REJ03G0167-0300.
HZS3CLLTA-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- -
- Tolerance:
- -
- Power - Max:
- -
- Impedance (Max) (Zzt):
- -
- Current - Reverse Leakage @ Vr:
- -
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
HZS3CLLTA-E FAQ
1.How can I place an order for HZS3CLLTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS3CLLTA-E 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 HZS3CLLTA-E reliable?
The price and inventory of HZS3CLLTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS3CLLTA-E is usually 5 days.
3.What payment methods are accepted for HZS3CLLTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS3CLLTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS3CLLTA-E?
HZS3CLLTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS3CLLTA-E 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 HZS3CLLTA-E?
For technical support, including HZS3CLLTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS3CLLTA-E requirements.
6.How does Aetrix verify that HZS3CLLTA-E is sourced from the original manufacturer or authorized distributors?
All HZS3CLLTA-E 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 HZS3CLLTA-E meets industry standards.
7.What is the process for return or replacement of HZS3CLLTA-E?
All HZS3CLLTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS3CLLTA-E, 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 HZS3CLLTA-E part is unused and in its original packaging.
Return procedure for HZS3CLLTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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