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Renesas HZS6C3TD-E
- Part No.:
- HZS6C3TD-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS6C3TD-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:3,750
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Product details
Overview
HZS6C3TD-E from Renesas Electronics is a silicon planar Zener diode designed for precision voltage regulation in low-power stabilized power supplies, with a nominal zener voltage of 6.1–6.4 V, maximum power dissipation of 400 mW, dynamic resistance of 2.0 Ω at 5 mA, and junction temperature rating up to 200°C - deployed in industrial control power rails and sensor biasing circuits.
For engineers reviewing the HZS6C3TD-E datasheet, HZS6C3TD-E pinout, HZS6C3TD-E application, or HZS6C3TD-E equivalent, key selection criteria include zener voltage tolerance (±0.3 V), low dynamic impedance for stable regulation under load transients, 5 mm-pitch compatibility for high-speed automated insertion, and MHD package thermal performance in compact PCB layouts.
Technical Context
The HZS6C3TD-E operates as a two-terminal shunt regulator, maintaining a stable reference voltage across its cathode-anode terminals when reverse-biased above its breakdown threshold. Its planar silicon construction ensures consistent VZ distribution and low leakage current (<25 µA at 0.5 V).
It is characterized at IZ = 5 mA with guaranteed VZ = 6.1–6.4 V, rd ≤ 2.0 Ω, and exhibits a negative temperature coefficient typical of mid-voltage Zeners (~−0.04 %/°C), enabling predictable drift behavior in ambient-temperature-varying environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 6.1–6.4 V at IZ = 5 mA - defines precise regulation point for 6 V rail stabilization. |
| Dynamic Resistance (rd) | ≤2.0 Ω at IZ = 5 mA - ensures minimal output voltage variation under load current changes. |
| Power Dissipation (Pd) | 400 mW - supports continuous operation in thermally constrained SMT-compatible layouts. |
| Reverse Leakage Current (IR) | ≤25 µA at VR = 0.5 V - guarantees low quiescent current in battery-backed or energy-sensitive designs. |
| Junction Temperature (Tj) | −55 to +200°C - enables use in extended-temperature industrial and automotive under-hood auxiliary circuits. |
| Zener Test Current (IZ) | 5 mA - standard operating point for specification compliance and design margin validation. |
Pinout & Package
Package: MHD (JEITA code GRZZ0002ZC-A), epoxy-molded, axial-lead miniature package with 5 mm pitch, 2.0 mm diameter body, and 26.0 mm lead length - optimized for high-speed automatic insertion and wave soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Reference Output Terminal | Connected to regulated voltage node; polarity-marked with lake-blue band for unambiguous orientation. |
| 2 (Anode) | Ground/Return Terminal | Common return path for zener current; must be tied to system ground or lowest potential reference. |
Key Features
| Feature | Design Value |
|---|---|
| Low Zener Impedance | 2.0 Ω max at 5 mA - delivers tight voltage regulation under dynamic load steps in feedback loops. |
| Wide Zener Voltage Range Coverage | Part of HZS Series spanning 1.6–38 V - allows single-source procurement across multiple voltage rails. |
| High-Temperature Junction Rating | 200°C max Tj - supports reliable operation in enclosed enclosures or near heat-generating components. |
| Automated Insertion Compatibility | 5 mm pitch and standardized MHD footprint - eliminates manual placement in high-volume manufacturing. |
Applications
| Industrial Sensor Biasing | Microcontroller Reset Circuit |
|---|---|
Use Scenario: Providing stable 6.2 V reference for analog front-end amplifiers in temperature and pressure transducers. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precision excitation voltage for bridge sensors. Use Value: Enables <±0.5% full-scale accuracy by minimizing VZ drift and noise coupling into signal chain. |
Use Scenario: Generating clean reset threshold for 5 V microcontrollers during power-up and brown-out events. IC Role / Device Role / Timing Role: Threshold-setting element in RC-based reset generator networks. Use Value: Ensures deterministic reset assertion at 6.2 V ±0.3 V, preventing premature MCU initialization. |
| LED Constant-Current Bias | Overvoltage Clamp in Interface Circuits |
Use Scenario: Setting reference voltage for op-amp-controlled LED driver current sources in signage modules. IC Role / Device Role / Timing Role: Stable voltage reference defining current-sense comparator trip point. Use Value: Maintains LED brightness consistency within ±2% over 0–70°C ambient range. |
Use Scenario: Protecting RS-485 receiver inputs against transient overvoltage exceeding 6.4 V. IC Role / Device Role / Timing Role: Clamping diode limiting input voltage to safe levels during ESD or surge events. Use Value: Absorbs >100 mJ transient energy without degradation, preserving interface IC integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C6V2 (ON Semiconductor) | VZ = 6.2 V ±5%, Pd = 500 mW, rd = 10 Ω - higher impedance and looser tolerance. | Suitable for non-critical biasing where ±5% VZ is acceptable; not recommended for precision references. | Select HZS6C3TD-E when <±0.3 V tolerance and sub-3 Ω impedance are required for closed-loop stability. |
| MMSZ4686 (Diodes Inc.) | VZ = 6.2 V ±5%, SOD-123 package, Pd = 350 mW - surface-mount only, lower power rating. | Preferred for space-constrained PCBs; lacks axial-leaded mechanical robustness and thermal mass of MHD. | Choose HZS6C3TD-E for through-hole automation, higher thermal endurance, and tighter spec compliance. |
Compared with BZX55C6V2 and MMSZ4686, the HZS6C3TD-E offers superior voltage accuracy (±0.3 V vs. ±5%), lower dynamic impedance (2.0 Ω vs. ≥10 Ω), and higher junction temperature capability (200°C vs. 150°C), making it optimal for industrial-grade regulation where long-term stability and thermal resilience are critical.
Availability
HZS6C3TD-E is available at Aetrix Electronics and suitable for industrial sensor biasing, microcontroller reset generation, and LED constant-current regulation requiring stable component supply, consistent parametric performance, and long-lifecycle availability.
Supply support for HZS6C3TD-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 specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
The HZS Series was developed as a family of precision silicon planar Zener diodes targeting cost-effective, high-reliability voltage reference and clamping functions in industrial power management and signal conditioning systems.
FAQ
What is the exact zener voltage range specified for HZS6C3TD-E?
The HZS6C3TD-E has a guaranteed zener voltage range of 6.1 V to 6.4 V when tested at IZ = 5 mA and Ta = 25°C. This ±0.3 V tolerance reflects Grade C3 specification within the HZS6 family and is confirmed in Renesas document REJ03G0184-0500 Rev.5.00.
Is HZS6C3TD-E compatible with automated through-hole assembly processes?
Yes, the HZS6C3TD-E uses the MHD package with 5 mm lead pitch and standardized dimensions (2.0 mm body diameter, 26.0 mm lead length), explicitly designed for high-speed automatic insertion equipment per Renesas' ordering information and package drawings.
What is the maximum allowable power dissipation for HZS6C3TD-E at 75°C ambient?
Per Figure 3 in the HZS Series datasheet, the derated power dissipation for HZS6C3TD-E at Ta = 75°C is approximately 300 mW. The linear derating begins at 50°C, with full 400 mW rated only at Ta ≤ 50°C.
Does HZS6C3TD-E have a specified temperature coefficient, and what is its typical value?
Yes - the HZS6C3TD-E exhibits a typical zener voltage temperature coefficient (γZ) of −0.04 %/°C, as shown in Figure 2 of the datasheet. This negative coefficient is characteristic of ~6 V Zeners and enables predictable, monotonic VZ drift over temperature.
Can HZS6C3TD-E be used as a replacement for older NEC-brand Zener diodes?
Yes - Renesas Electronics succeeded NEC Electronics Corporation in 2010 and maintains full continuity of the HZS Series. The HZS6C3TD-E is the direct successor to NEC's identically specified HZS6C3TD-E, with identical electrical specs, package, and qualification standards.
HZS6C3TD-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:
- -
HZS6C3TD-E FAQ
1.How can I place an order for HZS6C3TD-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS6C3TD-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 HZS6C3TD-E reliable?
The price and inventory of HZS6C3TD-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS6C3TD-E is usually 5 days.
3.What payment methods are accepted for HZS6C3TD-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS6C3TD-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS6C3TD-E?
HZS6C3TD-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS6C3TD-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 HZS6C3TD-E?
For technical support, including HZS6C3TD-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS6C3TD-E requirements.
6.How does Aetrix verify that HZS6C3TD-E is sourced from the original manufacturer or authorized distributors?
All HZS6C3TD-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 HZS6C3TD-E meets industry standards.
7.What is the process for return or replacement of HZS6C3TD-E?
All HZS6C3TD-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS6C3TD-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 HZS6C3TD-E part is unused and in its original packaging.
Return procedure for HZS6C3TD-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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