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Renesas HZ6C3LTD-E
- Part No.:
- HZ6C3LTD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ6C3LTD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:81,263
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Product details
Overview
HZ6C3LTD-E from Renesas Electronics is a silicon planar Zener diode optimized for low-noise voltage reference and stabilization in precision analog circuits, featuring a nominal zener voltage of 6.1–6.4 V, dynamic resistance of 60 Ω at 0.5 mA, maximum power dissipation of 400 mW, and junction temperature rating up to 175°C - deployed in regulated power supplies and sensor biasing networks.
For engineers reviewing the HZ6C3LTD-E datasheet, HZ6C3LTD-E pinout, HZ6C3LTD-E application, or HZ6C3LTD-E equivalent, key selection criteria include zener voltage tolerance (±0.15 V), low noise performance (≈1/3–1/10 of standard HZ series), DO-35 package compatibility, and thermal stability across −55°C to +175°C storage range.
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a planar-diffused silicon junction. Its low dynamic impedance (60 Ω) and tight zener voltage tolerance (6.1–6.4 V at 0.5 mA) enable stable regulation under varying load and temperature conditions.
The HZ6C3LTD-E exhibits a zener voltage temperature coefficient near zero (≈−0.02 %/°C per Fig.2), making it suitable for applications requiring minimal drift over ambient temperature changes. It is rated for 400 mW power dissipation at 25°C with linear derating above 25°C per Fig.3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.1–6.4 V at IZ = 0.5 mA - defines stable reference point for feedback loops in LDOs or op-amp references. |
| Dynamic Resistance (rd) | 60 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under load transients. |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - supports compact PCB layouts without forced cooling in low-power systems. |
| Junction Temperature (Tj) | 175°C max - enables operation in high-temperature industrial environments including motor control enclosures. |
| Reverse Leakage (IR) | 1 μA max at VR = 2.0 V - minimizes quiescent current draw in battery-powered precision sensors. |
| Package | DO-35 (JEITA GRZZ0002ZB-A) - industry-standard axial leaded package compatible with automated through-hole assembly. |
Pinout & Package
Package: DO-35 glass axial-leaded package with orange body color and navy-blue cathode band; total mass ≈ 0.13 g; dimensions per JEITA SC-40 outline (L = 26.0 mm, φD = 2.0 mm, E = 4.2 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener voltage reference terminal | Connected to regulated output node; reverse-biased operation requires positive voltage applied here relative to anode. |
| 2 (Anode) | Reference ground/reference return | Typically tied to system ground or common return path; establishes reference potential for voltage clamping or biasing. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | Noise level ≈1/3–1/10 that of standard HZ series - critical for high-resolution ADC references and audio preamp biasing. |
| Tight zener voltage tolerance | ±0.15 V window (6.1–6.4 V) - reduces need for post-production trimming in voltage reference designs. |
| Low dynamic impedance | 60 Ω at 0.5 mA - improves line and load regulation in shunt-regulated supplies. |
| High-temperature capability | 175°C max junction temperature - supports deployment in engine control units and industrial PLC modules. |
| Low leakage current | ≤1 μA at 2.0 V reverse bias - preserves battery life in portable instrumentation and IoT sensor nodes. |
Applications
| Industrial Power Monitoring | Precision Sensor Biasing |
|---|---|
|
Use Scenario: Real-time monitoring of 24 V DC bus voltage in factory automation controllers. IC Role / Device Role / Timing Role: Shunt voltage reference for ADC input scaling and overvoltage protection threshold detection. Use Value: Stable 6.25 V reference enables ±0.5% measurement accuracy over −40°C to +85°C ambient range. |
Use Scenario: Providing bias voltage to bridge-based pressure transducers in medical diagnostic equipment. IC Role / Device Role / Timing Role: Low-drift, low-noise excitation source for ratiometric signal conditioning. Use Value: <1 μA leakage and 60 Ω impedance minimize offset error and thermal drift in microvolt-level outputs. |
| LDO Feedback Reference | Overvoltage Clamp Protection |
|
Use Scenario: Setting output voltage of adjustable low-dropout regulators in telecom interface cards. IC Role / Device Role / Timing Role: Precision voltage divider reference node in feedback loop of TLV7xx series LDOs. Use Value: Tight 6.1–6.4 V tolerance ensures final output accuracy within ±1.2% without external calibration. |
Use Scenario: Protecting 5 V logic rails from transient surges in automotive body control modules. IC Role / Device Role / Timing Role: Fast-acting clamp element placed between supply and ground to limit voltage spikes. Use Value: 400 mW power rating absorbs 100 ms 12 V transients without degradation; DO-35 allows direct PCB mounting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4734A (ON Semiconductor) | Zener voltage 5.6 V ±5%, rd = 9 Ω, Pd = 1 W, DO-41 package | Higher power and lower impedance but wider voltage tolerance and higher noise than HZ6C3LTD-E | Select when higher surge energy handling is required and tighter voltage tolerance is not critical. |
| BZX55C6V2 (Vishay) | Zener voltage 6.2 V ±5%, rd = 100 Ω, Pd = 500 mW, DO-35 package | Same DO-35 footprint but higher dynamic resistance and unverified low-noise performance | Acceptable for general-purpose regulation where noise sensitivity is low and cost is prioritized. |
Compared with 1N4734A and BZX55C6V2, the HZ6C3LTD-E delivers superior voltage precision (±0.15 V vs. ±5%), verified low-noise operation, and optimized thermal stability - making it preferred for metrology-grade references despite its lower power rating.
Availability
HZ6C3LTD-E is available at Aetrix Electronics and suitable for industrial power monitoring, precision sensor biasing, LDO feedback reference, and overvoltage clamp protection requiring stable component supply and long-term obsolescence management.
Supply support for HZ6C3LTD-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 connectivity solutions for industrial, automotive, and enterprise applications.
The HZ-L Series Zener diodes were developed by Renesas specifically for low-noise, high-stability voltage reference applications in test equipment, sensor interfaces, and precision power systems - emphasizing tight tolerance, low impedance, and thermal robustness.
FAQ
What is the exact zener voltage range specified for HZ6C3LTD-E?
The HZ6C3LTD-E has a guaranteed zener voltage range of 6.1 V to 6.4 V when tested at 0.5 mA zener current and 25°C ambient temperature. This ±0.15 V window reflects tighter manufacturing control than standard Zener diodes and supports high-accuracy reference design without trimming. The value is confirmed in the Renesas REJ03G0182-0300 datasheet, Page 2, Electrical Characteristics table.
Is HZ6C3LTD-E RoHS compliant?
Yes, HZ6C3LTD-E complies with the EU RoHS Directive as confirmed by Renesas Electronics' environmental compliance documentation. The device contains no lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB), or polybrominated diphenyl ethers (PBDE) above threshold limits. Full material declarations are available upon request from Aetrix Electronics for qualifying customers.
What is the maximum allowable reverse current before breakdown in HZ6C3LTD-E?
The HZ6C3LTD-E specifies a maximum reverse leakage current (IR) of 1 μA at 2.0 V reverse voltage and 25°C. This parameter is measured well below the zener knee and confirms minimal standby current draw - essential for battery-operated instrumentation. It is distinct from the 0.5 mA test current used for zener voltage measurement.
Can HZ6C3LTD-E be used in surface-mount designs?
No - HZ6C3LTD-E uses a DO-35 axial-leaded glass package and is designed exclusively for through-hole mounting. It is not compatible with SMT reflow or wave soldering processes. For surface-mount equivalents, consider Renesas' HZ6C3L series in SOD-123 or similar packages - but note those are distinct orderable parts with different markings and packaging codes.
Does HZ6C3LTD-E have a documented temperature coefficient?
Yes - the HZ6C3LTD-E exhibits a zener voltage temperature coefficient (γZ) of approximately −0.02 %/°C, as shown in Figure 2 of the REJ03G0182-0300 datasheet. This near-zero drift behavior is characteristic of mid-voltage Zeners (~6.2 V) and makes HZ6C3LTD-E especially suitable for applications requiring stable reference performance across −40°C to +125°C operating ranges.
HZ6C3LTD-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:
- -
HZ6C3LTD-E FAQ
1.How can I place an order for HZ6C3LTD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ6C3LTD-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 HZ6C3LTD-E reliable?
The price and inventory of HZ6C3LTD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ6C3LTD-E is usually 5 days.
3.What payment methods are accepted for HZ6C3LTD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ6C3LTD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ6C3LTD-E?
HZ6C3LTD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ6C3LTD-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 HZ6C3LTD-E?
For technical support, including HZ6C3LTD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ6C3LTD-E requirements.
6.How does Aetrix verify that HZ6C3LTD-E is sourced from the original manufacturer or authorized distributors?
All HZ6C3LTD-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 HZ6C3LTD-E meets industry standards.
7.What is the process for return or replacement of HZ6C3LTD-E?
All HZ6C3LTD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ6C3LTD-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 HZ6C3LTD-E part is unused and in its original packaging.
Return procedure for HZ6C3LTD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ6C3LTD-E Tags
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