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Renesas HZS3C3TA-E
- Part No.:
- HZS3C3TA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS3C3TA-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
HZS3C3TA-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 3.3 V (min 3.3 V, max 3.5 V), 400 mW power dissipation, and dynamic resistance of 5 Ω at 5 mA test current.
For engineers reviewing the HZS3C3TA-E datasheet, HZS3C3TA-E pinout, HZS3C3TA-E application, or HZS3C3TA-E equivalent, this device serves as a compact, high-stability voltage reference in analog sensor interfaces, microcontroller reset circuits, and low-current bias networks where tight tolerance and low impedance are required.
Technical Context
The HZS3C3TA-E operates as a two-terminal shunt regulator, maintaining stable output voltage across varying load currents by conducting excess current to ground when input exceeds its zener threshold. Its low dynamic resistance (5 Ω) ensures minimal voltage deviation under load transients.
Designed for DC operation only, it features a junction temperature rating up to 200°C and storage range from −55°C to +175°C, enabling use in industrial ambient environments. The device exhibits a negative zener voltage temperature coefficient typical of low-voltage Zeners in the 3–4 V range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.3 V min / 3.5 V max at IZ = 5 mA - defines regulated output voltage window for design margining |
| Power Dissipation (Pd) | 400 mW - sets maximum continuous power handling without derating below 25°C ambient |
| Dynamic Resistance (rd) | 5 Ω at IZ = 5 mA - determines output voltage stability against load current changes |
| Reverse Current (IR) | Max 5 µA at VR = 0.5 V - ensures low leakage in standby or high-impedance bias networks |
| Junction Temperature (Tj) | 200°C - supports operation in thermally constrained PCB layouts or sealed enclosures |
| Package Type | MHD (Mini-High-Density) - 5 mm pitch, surface-mount compatible with automated insertion |
Pinout & Package
Package: MHD (JEITA code GRZZ0002ZC-A), epoxy-molded, axial-leaded miniature package with cathode band marking; dimensions per Page 6: φD = 2.0 mm (nom), L = 26.0 mm (min), mass ≈ 0.084 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener anode connection point | Connected to higher-potential node; reverse-biased operation requires cathode at positive potential relative to anode |
| 2 (Anode) | Zener cathode connection point | Typically tied to circuit ground or common reference; completes shunt regulation path |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 5 Ω enables <±15 mV output shift under ±75 mA load step in 1 kΩ series-limited supply |
| Wide zener voltage spectrum | 3.3 V grade fits standard 3.3 V rail monitoring and LDO feedback applications without external scaling |
| High thermal endurance | 200°C junction rating allows placement near heat-generating components without derating |
| Automated assembly compatibility | 5 mm pitch and MHD footprint support high-speed pick-and-place and wave soldering |
Applications
| Microcontroller Reset Circuit | Analog Sensor Biasing |
|---|---|
|
Use Scenario: Providing clean, stable reset threshold for 3.3 V microcontrollers during power-up and brownout conditions. IC Role / Device Role / Timing Role: Shunt voltage reference defining logic-high reset release voltage. Use Value: Tight 3.3–3.5 V tolerance ensures deterministic reset assertion timing across temperature and unit variance. |
Use Scenario: Supplying precise excitation voltage to resistive bridge sensors (e.g., strain gauges, RTDs) in data acquisition front-ends. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage reference source for ratiometric measurement accuracy. Use Value: 5 Ω dynamic resistance minimizes sensor output error caused by reference current variation. |
| Low-Power Voltage Monitor | LED Current Regulation |
|
Use Scenario: Detecting undervoltage on 3.3 V rails in battery-powered IoT nodes using comparator input. IC Role / Device Role / Timing Role: Stable reference input to comparator for accurate trip-point detection. Use Value: Max 5 µA leakage at 0.5 V ensures negligible current draw in always-on monitoring circuits. |
Use Scenario: Setting constant current for indicator LEDs in industrial control panels via series resistor + Zener clamp. IC Role / Device Role / Timing Role: Voltage clamp limiting forward voltage across current-setting resistor. Use Value: 400 mW power rating supports up to 120 mA LED drive with appropriate series resistance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C3V3 (Diodes Inc.) | Same 3.3 V nominal, SOT-23 package, 300 mW Pd, 90 Ω rd | Higher dynamic resistance reduces regulation precision in low-impedance loads | Select when board space is constrained and 90 Ω rd meets system error budget |
| MMBZ5226BS (ON Semiconductor) | 3.3 V nominal, SOT-323, 200 mW Pd, 28 Ω rd, tighter 3.1–3.5 V tolerance | Lower power rating limits current-sinking capability in high-load scenarios | Prefer for ultra-compact designs where 200 mW suffices and tighter VZ spread is critical |
Compared with BZX84-C3V3 and MMBZ5226BS, the HZS3C3TA-E delivers superior regulation stability (5 Ω vs. ≥28 Ω rd) and higher power headroom (400 mW), making it optimal for applications demanding low-output-impedance references in through-hole or MHD-compatible layouts.
Availability
HZS3C3TA-E is available at Aetrix Electronics and suitable for industrial control systems, sensor signal conditioning modules, and embedded power management circuits requiring stable component supply with consistent parametric performance across production lots.
Supply support for HZS3C3TA-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, and power devices for industrial, automotive, and infrastructure markets.
The HZS Series was developed as a family of precision silicon planar Zener diodes targeting cost-sensitive, high-reliability voltage reference needs in stabilized power supplies and analog interface circuits.
FAQ
What is the exact zener voltage range specified for HZS3C3TA-E?
The HZS3C3TA-E has a guaranteed zener voltage range of 3.3 V minimum to 3.5 V maximum when tested at IZ = 5 mA and Ta = 25°C. This grade (C3) is part of the HZS3 subfamily and is documented on Page 2 of the REJ03G0184-0500 datasheet. The HZS3C3TA-E maintains this specification across its qualified operating temperature range.
Does HZS3C3TA-E support surface-mount assembly?
The HZS3C3TA-E uses the MHD package (JEITA code GRZZ0002ZC-A), which is designed for 5 mm-pitch high-speed automatic insertion. While not a standard SMT package like SOT-23, its axial-leaded MHD form factor is compatible with wave soldering and selective reflow processes when mounted in through-hole pads. It is not intended for pick-and-place SMT placement.
What is the maximum reverse current specification for HZS3C3TA-E?
The HZS3C3TA-E specifies a maximum reverse current (IR) of 5 µA at VR = 0.5 V and Ta = 25°C. This low leakage supports energy-efficient operation in battery-backed or always-on monitoring circuits. The value is confirmed in the "Electrical Characteristics" table on Page 2 of the official Renesas datasheet REJ03G0184-0500 Rev.5.00.
Can HZS3C3TA-E be used in place of a 3.3 V voltage reference IC?
The HZS3C3TA-E functions as a passive shunt reference and lacks the initial accuracy, temperature drift compensation, and output current drive of active voltage reference ICs. It is suitable where ±3% voltage tolerance and moderate temperature coefficient are acceptable - such as reset thresholds or coarse biasing - but not for high-precision DAC/ADC references. For those, dedicated ICs like REF3333 remain preferred.
What is the thermal resistance junction-to-ambient for HZS3C3TA-E?
The datasheet does not specify a numerical junction-to-ambient thermal resistance (RθJA) for the HZS3C3TA-E. Instead, it provides the derating curve in Figure 3 (Page 5): power dissipation linearly decreases from 400 mW at 25°C ambient to 0 mW at approximately 150°C ambient. Designers must apply this curve directly rather than calculating temperature rise using RθJA.
HZS3C3TA-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:
- -
HZS3C3TA-E FAQ
1.How can I place an order for HZS3C3TA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS3C3TA-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 HZS3C3TA-E reliable?
The price and inventory of HZS3C3TA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS3C3TA-E is usually 5 days.
3.What payment methods are accepted for HZS3C3TA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS3C3TA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS3C3TA-E?
HZS3C3TA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS3C3TA-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 HZS3C3TA-E?
For technical support, including HZS3C3TA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS3C3TA-E requirements.
6.How does Aetrix verify that HZS3C3TA-E is sourced from the original manufacturer or authorized distributors?
All HZS3C3TA-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 HZS3C3TA-E meets industry standards.
7.What is the process for return or replacement of HZS3C3TA-E?
All HZS3C3TA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS3C3TA-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 HZS3C3TA-E part is unused and in its original packaging.
Return procedure for HZS3C3TA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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