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Renesas HZS4C1TA-E
- Part No.:
- HZS4C1TA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS4C1TA-E.pdf
- Description:
- DIODE ZENER 0.4W
- Quantity:
- Payment:
- Shipping:
Inventory:35,000
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Product details
Overview
HZS4C1TA-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 4.2–4.4 V, 400 mW power dissipation, and low dynamic impedance of ≤100 Ω at 5 mA test current - deployed in industrial control power rails and sensor biasing circuits.
For engineers reviewing the HZS4C1TA-E datasheet, HZS4C1TA-E pinout, HZS4C1TA-E application, or HZS4C1TA-E equivalent, key selection criteria include zener voltage tolerance (±0.2 V), temperature coefficient (−0.04 %/°C typical), cathode-anode polarity marking, MHD package compatibility with 5 mm-pitch auto-insertion, and compliance with Standard-grade reliability for office and industrial equipment.
Technical Context
This device operates as a two-terminal shunt regulator, maintaining stable output voltage across variable load and input conditions via controlled reverse-bias breakdown. Its planar junction construction ensures consistent zener voltage distribution and low leakage current (<25 µA at 0.5 V).
The HZS4C1TA-E exhibits a negative temperature coefficient (−0.04 %/°C) typical for its 4.3 V nominal range, enabling predictable drift compensation in temperature-sensitive references. It is rated for junction temperatures up to 200°C and storage from −55°C to +175°C, supporting operation in thermally demanding embedded environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.2–4.4 V at IZ = 5 mA - defines precise regulation point for 3.3 V or 5 V rail clamping and reference generation. |
| Power Dissipation (Pd) | 400 mW maximum - supports continuous regulation in compact PCB layouts without forced cooling. |
| Dynamic Resistance (rd) | ≤100 Ω at IZ = 5 mA - ensures minimal output voltage variation under load transients. |
| Reverse Leakage (IR) | ≤25 µA at VR = 0.5 V - enables low-quiescent-current designs in battery-backed or energy-harvesting systems. |
| Junction Temperature (Tj) | 200°C maximum - allows reliable operation adjacent to heat-generating components like power MOSFETs or LDOs. |
| Package Type | MHD (JEITA GRZZ0002ZC-A) - 2-pin axial leaded package with 5 mm pitch, optimized for high-speed automated insertion. |
Pinout & Package
MHD package: axial-leaded, cylindrical glass body with lake-blue cathode band marking; 2.0 mm diameter, 26.0 mm length, 0.4 mm lead diameter; mass ≈ 0.084 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-bias terminal where zener breakdown occurs. |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential reference; completes current path during regulation. |
Key Features
| Feature | Design Value |
|---|---|
| Low Zener Impedance | ≤100 Ω at 5 mA - minimizes output voltage deviation during load steps in feedback-sensing circuits. |
| Wide Zener Voltage Range | 1.6–38 V family coverage - enables single-supplier sourcing across multiple voltage rails in multi-rail power systems. |
| High-Speed Insertion Compatibility | 5 mm pitch, MHD package - supports automated assembly in high-volume industrial controller manufacturing. |
| Stable Temperature Coefficient | −0.04 %/°C typical at 4.3 V - reduces thermal drift in precision analog front-ends and ADC reference buffers. |
Applications
| Industrial Power Monitoring | Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Monitoring 24 V DC supply rails in PLC I/O modules using resistive divider + Zener clamp. IC Role / Device Role / Timing Role: Shunt voltage reference and overvoltage protector for ADC input protection circuitry. Use Value: Maintains ±0.2 V regulation accuracy across −40°C to +85°C ambient, preventing ADC saturation during line surges. |
Use Scenario: Biasing bridge-based pressure sensors in HVAC control units. IC Role / Device Role / Timing Role: Stable excitation voltage source replacing higher-cost IC references in low-bandwidth analog paths. Use Value: Delivers <25 µA leakage and <100 Ω impedance, reducing offset drift and improving sensor linearity by >0.1% FS. |
| Embedded Microcontroller Reset Circuit | USB Peripheral Voltage Clamp |
|
Use Scenario: Generating clean 3.3 V reset threshold for ARM Cortex-M0+ MCUs in smart meters. IC Role / Device Role / Timing Role: Zener-based reset supervisor element in discrete brown-out detection network. Use Value: Enables deterministic reset assertion at 3.0 V ±0.1 V with no external capacitors or timing components required. |
Use Scenario: Protecting USB data lines (D+/D−) from ESD-induced overvoltage in portable diagnostic tools. IC Role / Device Role / Timing Role: Low-capacitance shunt clamp limiting transient voltage to <5.5 V peak. Use Value: Withstands 400 mW surge pulses per IEC 61000-4-2 Level 3, preserving signal integrity without degrading 480 Mbps data rate. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4733A (ON Semiconductor) | 5.1 V nominal, ±5% tolerance, 1.0 W Pd, DO-41 package | Higher power, looser voltage tolerance, larger footprint - suited for general-purpose 5 V clamping, not precision 4.3 V references. | Select when higher surge capability is needed and tighter VZ tolerance is not required. |
| BZX55-C4V3 (Vishay) | 4.3 V nominal, ±5% tolerance, 500 mW Pd, DO-35 package | Same nominal voltage but wider tolerance (±5% vs. ±0.2 V), higher rd (≤150 Ω), different lead spacing (2.5 mm vs. 5 mm) | Acceptable for cost-sensitive consumer applications where auto-insertion pitch and tight regulation are secondary. |
Compared with 1N4733A and BZX55-C4V3, the HZS4C1TA-E offers superior voltage precision (±0.2 V), lower dynamic impedance, and MHD packaging optimized for industrial SMT-compatible through-hole assembly - making it preferred for space-constrained, thermally stable, and metrology-grade power monitoring designs.
Availability
HZS4C1TA-E is available at Aetrix Electronics and suitable for industrial control systems, sensor interface modules, and embedded microcontroller power management requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for HZS4C1TA-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 enterprise applications.
The HZS Series belongs to Renesas' legacy silicon planar Zener diode product line, engineered for high-reliability voltage stabilization in cost-sensitive, high-volume industrial power supply designs.
FAQ
What is the exact zener voltage range specified for HZS4C1TA-E?
The HZS4C1TA-E has a guaranteed zener voltage range of 4.2 V to 4.4 V at a test current of 5 mA, corresponding to Grade C3 within the HZS4 family. This tight ±0.1 V tolerance enables accurate voltage clamping in precision analog circuits where standard 5% Zeners would introduce unacceptable error margins. The specification is verified per REJ03G0184-0500 Rev.5.00.
Does HZS4C1TA-E support automatic insertion in high-volume manufacturing?
Yes, the HZS4C1TA-E uses the MHD package (JEITA GRZZ0002ZC-A) with standardized 5 mm lead pitch and axial geometry, explicitly qualified for high-speed automatic insertion equipment. Its lake-blue cathode band provides unambiguous polarity identification during placement, reducing misorientation defects in industrial controller PCB assembly lines.
What is the maximum allowable junction temperature for continuous operation of HZS4C1TA-E?
The HZS4C1TA-E is rated for a maximum junction temperature (Tj) of 200°C, allowing sustained operation in thermally dense environments such as near power converters or motor drivers. Derating curves in the datasheet confirm 400 mW dissipation remains valid up to 70°C ambient, with linear reduction to zero at 150°C - critical for thermal design validation of HZS4C1TA-E in sealed enclosures.
How does the temperature coefficient of HZS4C1TA-E affect its performance in wide-temperature applications?
HZS4C1TA-E exhibits a typical zener voltage temperature coefficient of −0.04 %/°C, meaning its regulation point decreases by ~1.7 mV/°C around 4.3 V. This predictable negative drift allows system-level compensation in temperature-critical applications like precision sensor excitation, and is significantly more stable than generic Zeners with coefficients exceeding ±0.1 %/°C.
Is HZS4C1TA-E compliant with environmental regulations such as RoHS?
Yes, HZS4C1TA-E complies with the EU RoHS Directive and other applicable environmental regulations. Renesas confirms RoHS compliance for the entire HZS Series in official documentation (REJ03G0184-0500), and Aetrix Electronics sources only certified lots with full material declarations and traceable lot-level compliance records for HZS4C1TA-E.
HZS4C1TA-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:
- -
HZS4C1TA-E FAQ
1.How can I place an order for HZS4C1TA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS4C1TA-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 HZS4C1TA-E reliable?
The price and inventory of HZS4C1TA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS4C1TA-E is usually 5 days.
3.What payment methods are accepted for HZS4C1TA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS4C1TA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS4C1TA-E?
HZS4C1TA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS4C1TA-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 HZS4C1TA-E?
For technical support, including HZS4C1TA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS4C1TA-E requirements.
6.How does Aetrix verify that HZS4C1TA-E is sourced from the original manufacturer or authorized distributors?
All HZS4C1TA-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 HZS4C1TA-E meets industry standards.
7.What is the process for return or replacement of HZS4C1TA-E?
All HZS4C1TA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS4C1TA-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 HZS4C1TA-E part is unused and in its original packaging.
Return procedure for HZS4C1TA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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