My Inquiry
My Account
Renesas HZ2CLLTD-E
- Part No.:
- HZ2CLLTD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ2CLLTD-E.pdf
- Description:
- DIODE ZENER 0.25W
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HZ2CLLTD-E from Renesas Electronics is a silicon planar Zener diode optimized for hard-knee, low-noise voltage reference applications at 2.2–2.6 V nominal Zener voltage, with 250 mW power dissipation, DO-35 package, and dynamic impedance as low as 350 Ω at IZT = 0.5 mA. It delivers sharp breakdown characteristics down to 1 nA reverse current and reduced temperature coefficient versus conventional zeners.
For engineers reviewing the HZ2CLLTD-E datasheet, HZ2CLLTD-E pinout, HZ2CLLTD-E application, or HZ2CLLTD-E equivalent, key selection criteria include its low-current knee performance (IZ = 0.001–0.5 mA), ±0.6 V linearity error over two decades of current, and suitability for precision analog references in space-constrained industrial instrumentation.
Technical Context
The HZ2CLLTD-E employs a planar diffusion process to achieve semi-logarithmic VZ–IZ linearity from 1 nA to 1 mA, enabling stable regulation at microamp-level bias currents where standard zeners exhibit poor knee definition. Its low dynamic impedance (350 Ω typ. at 0.5 mA) and low noise stem from optimized junction geometry and controlled doping profiles.
Designed for low-power reference use, it operates within a –55°C to +175°C storage range and supports junction temperatures up to 175°C. The device exhibits a Zener voltage temperature coefficient of approximately –0.03 %/°C (–0.7 mV/°C) near 2.4 V, confirmed by Renesas' characteristic curves across the HZ-LL series.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.2–2.6 V at IZ = 0.5 mA - defines tight reference window for low-voltage analog circuits |
| Dynamic Impedance (ZZT) | 350 Ω typical at IZT = 0.5 mA - ensures minimal output voltage shift under load transients |
| Reverse Current (IR) | ≤100 nA at VR = 0.5 V - enables ultra-low quiescent current biasing in battery-powered sensors |
| Power Dissipation (Pd) | 250 mW at Ta = 25°C - sets maximum continuous DC power handling in DO-35 package |
| Linearity Error (∆VZ1) | ≤0.6 V from IZ = 0.05 mA to 0.5 mA - quantifies hard-knee behavior critical for stable low-current regulation |
| Junction Temperature (Tj) | 175°C max - allows operation in high-ambient industrial environments with appropriate PCB thermal relief |
Pinout & Package
Package: DO-35 (JEITA code GRZZ0002ZB-A), glass axial leaded, cathode identified by navy-blue band, body color verdure, mass 0.13 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-biased terminal during Zener operation |
| 2 (Non-banded End) | Anode | Connected to circuit ground or lower-potential rail; establishes reference polarity |
Key Features
| Feature | Design Value |
|---|---|
| Hard-knee breakdown | VZ–IZ curve remains semi-logarithmic linear from 1 nA to 1 mA - enables stable reference generation at µA bias currents |
| Low dynamic impedance | 350 Ω typical at 0.5 mA - reduces output voltage variation under changing load conditions |
| Reduced temperature coefficient | ≈ –0.03 %/°C near 2.4 V - minimizes drift in unregulated ambient environments |
| Low noise performance | Approximately 1/10 the noise of standard zeners in low-current region - improves SNR in precision ADC references |
Applications
| Industrial Sensor Signal Conditioning | Portable Medical Instrumentation |
|---|---|
Use Scenario: Biasing op-amp input stages and ADC voltage references in low-power pressure/temperature transducers. IC Role / Device Role / Timing Role: Precision low-current voltage reference providing stable 2.4 V reference for ratiometric sensor excitation and analog front-end scaling. Use Value: Enables sub-1 µA standby operation while maintaining <0.5% reference accuracy over –40°C to +85°C due to hard-knee linearity and low TC. |
Use Scenario: Supplying reference voltage to ECG amplifier stages and low-power pulse oximeter analog signal chains. IC Role / Device Role / Timing Role: Low-noise Zener reference replacing higher-power shunt regulators to extend battery life in Class II medical devices. Use Value: Delivers 10× lower noise than standard zeners at 10 µA bias, improving effective resolution of 24-bit delta-sigma ADCs. |
| Automotive Cabin Control Modules | Test & Measurement Calibration Sources |
Use Scenario: Providing stable bias for LIN bus transceiver voltage monitors and HVAC sensor interfaces in non-safety-critical modules. IC Role / Device Role / Timing Role: Low-drift voltage clamp protecting MCU analog inputs against transient overvoltage while maintaining reference integrity. Use Value: Withstands 175°C junction temperature and maintains <1.5% VZ tolerance across automotive temperature range without active compensation. |
Use Scenario: Serving as primary reference element in handheld multimeters and portable calibration tools requiring traceable low-voltage standards. IC Role / Device Role / Timing Role: Primary Zener reference in 3½-digit DMM front-end, directly setting full-scale analog-to-digital conversion thresholds. Use Value: Achieves ±0.6 V linearity over 100:1 current range, enabling accurate auto-ranging without software correction tables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5221B (ON Semiconductor) | Zener voltage 2.4 V ±5%, Pd = 500 mW, ZZT = 130 Ω @ 20 mA - higher power, higher test current, less optimized for µA operation | Requires ≥1 mA bias for stable regulation; unsuitable for ultra-low-power designs | Select only when higher power margin and higher bias current are acceptable |
| BZX55C2V4 (Vishay) | Zener voltage 2.4 V ±5%, Pd = 500 mW, ZZT = 100 Ω @ 5 mA - standard knee, no hard-knee optimization below 10 µA | Lacks verified sub-100 nA linearity; exhibits soft knee and higher noise below 10 µA | Prefer for cost-sensitive, non-precision applications where µA-level stability is not required |
Compared with 1N5221B and BZX55C2V4, the HZ2CLLTD-E provides superior low-current regulation fidelity and lower noise at microamp bias levels, making it uniquely suited for battery-operated precision analog systems-whereas the alternatives require higher minimum operating current and deliver degraded stability below 10 µA.
Availability
HZ2CLLTD-E is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable medical instrumentation, and test & measurement calibration sources requiring stable component supply with guaranteed long-term continuity.
Supply support for HZ2CLLTD-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 HZ-LL Series was designed specifically for precision low-noise voltage reference applications demanding hard-knee behavior and stable regulation at microamp bias currents - targeting high-accuracy analog signal chains in resource-constrained systems.
FAQ
What is the Zener voltage tolerance of HZ2CLLTD-E at 0.5 mA test current?
The HZ2CLLTD-E has a specified Zener voltage range of 2.2 V to 2.6 V at IZ = 0.5 mA, representing a ±0.2 V absolute tolerance or approximately ±8.3% about the nominal 2.4 V value. This tolerance is guaranteed per Renesas' REJ03G0183-0300 datasheet and applies to all units shipped as HZ2CLLTD-E. No binning or tighter tolerance variants are defined for this part number.
Does HZ2CLLTD-E support operation below 1 µA reverse current?
Yes, the HZ2CLLTD-E is characterized down to 1 nA reverse current, with semi-logarithmic VZ–IZ linearity confirmed from 1 nA to 1 mA. Its hard-knee design ensures usable regulation even at 100 nA, unlike standard zeners that exhibit significant voltage droop below 10 µA. This makes HZ2CLLTD-E suitable for nanoamp-biased reference circuits.
What is the maximum allowable junction temperature for HZ2CLLTD-E?
The maximum rated junction temperature for HZ2CLLTD-E is 175°C, as specified in the Absolute Maximum Ratings table of the Renesas datasheet REJ03G0183-0300. Operation beyond this limit risks irreversible degradation of the Zener junction. Derating is required above 25°C ambient per the power dissipation vs. temperature curve on page 3.
Is HZ2CLLTD-E RoHS compliant and lead-free?
Yes, HZ2CLLTD-E meets EU RoHS Directive requirements and is lead-free. Renesas confirms environmental compliance in accordance with applicable regulations, including restriction of hazardous substances. The DO-35 package uses lead-free glass and internal metallization consistent with JEDEC standards for RoHS-compliant discrete semiconductors.
Can HZ2CLLTD-E be used as a substitute for HZ2CLL in a PCB design?
Yes, HZ2CLLTD-E is the tape-and-reel packaging variant of the HZ2CLL device - identical electrically and physically. The "TD-E" suffix denotes embossed carrier tape packaging per EIA-481-D standard, with same DO-35 package dimensions, pinout, and electrical specifications. No layout or schematic changes are needed when substituting HZ2CLLTD-E for HZ2CLL.
HZ2CLLTD-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:
- -
HZ2CLLTD-E FAQ
1.How can I place an order for HZ2CLLTD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ2CLLTD-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 HZ2CLLTD-E reliable?
The price and inventory of HZ2CLLTD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ2CLLTD-E is usually 5 days.
3.What payment methods are accepted for HZ2CLLTD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ2CLLTD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ2CLLTD-E?
HZ2CLLTD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ2CLLTD-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 HZ2CLLTD-E?
For technical support, including HZ2CLLTD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ2CLLTD-E requirements.
6.How does Aetrix verify that HZ2CLLTD-E is sourced from the original manufacturer or authorized distributors?
All HZ2CLLTD-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 HZ2CLLTD-E meets industry standards.
7.What is the process for return or replacement of HZ2CLLTD-E?
All HZ2CLLTD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ2CLLTD-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 HZ2CLLTD-E part is unused and in its original packaging.
Return procedure for HZ2CLLTD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ2CLLTD-E Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
