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Renesas HZS4C3JRX
- Part No.:
- HZS4C3JRX
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS4C3JRX.pdf
- Description:
- DIODE ZENER
- Quantity:
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- Shipping:
Inventory:5,000
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Product details
Overview
HZS4C3JRX from ROHM Semiconductor is a silicon epitaxial planar Zener diode designed for precision voltage regulation in stabilized power supplies, with a nominal zener voltage of 4.2–4.4 V, maximum power dissipation of 400 mW, dynamic resistance ≤100 Ω at 5 mA, and reverse leakage current ≤1.0 µA at 1.0 V. It supports high-speed automatic insertion on 5 mm-pitch PCBs in industrial power management circuits.
For engineers reviewing the HZS4C3JRX datasheet, HZS4C3JRX pinout, HZS4C3JRX application, or HZS4C3JRX equivalent, key selection criteria include zener voltage tolerance (±0.2 V), low-temperature coefficient (−2.5 mV/°C typical at 4.3 V), DC-tested stability, and compatibility with through-hole mounting in compact linear regulators and reference circuits.
Technical Context
This discrete Zener diode operates in reverse breakdown mode to maintain stable output voltage under varying load and input conditions. Its epitaxial planar structure ensures low leakage (≤1.0 µA) and consistent dynamic impedance (≤100 Ω) across production lots.
Designed for DC-stabilized operation only, it exhibits a negative temperature coefficient of −2.5 mV/°C near 4.3 V and is rated for junction temperatures up to 200°C, enabling reliable use in thermally demanding embedded power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.2–4.4 V at IZ = 5 mA - defines regulated output level in shunt reference designs |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - sets thermal derating limit for PCB layout and heatsinking |
| Dynamic Resistance (rd) | ≤100 Ω at IZ = 5 mA - determines regulation stiffness against load transients |
| Reverse Leakage (IR) | ≤1.0 µA at VR = 1.0 V - ensures minimal quiescent current in low-power standby modes |
| Junction Temperature (Tj) | −55°C to +200°C - supports operation in automotive engine bay and industrial control enclosures |
| Temperature Coefficient | −2.5 mV/°C at ~4.3 V - enables predictable drift compensation in precision references |
Pinout & Package
Package: DO-35 glass axial lead package (2.5 mm diameter × 4.5 mm length), lead pitch 5 mm, compatible with high-speed automatic insertion equipment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to higher potential node; reverse-biased terminal where zener breakdown occurs |
| 2 (Non-banded End) | Anode | Connected to lower potential (typically ground or return path); completes bias circuit |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | ≤100 Ω at 5 mA - improves line/load regulation in feedback-free shunt references |
| Wide zener voltage range | 1.5–38 V across HZS family - allows single-platform sourcing for multi-rail systems |
| High-speed insertion compatibility | 5 mm pitch axial leads - eliminates manual placement in high-volume power supply assembly |
| DC-tested performance | Specified under DC conditions only - ensures predictable behavior in static voltage reference applications |
Applications
| Industrial Power Monitor | Embedded Microcontroller Reference |
|---|---|
Use Scenario: Monitoring 5 V rail integrity in PLC I/O modules using resistor-divider + Zener clamp. IC Role / Device Role / Timing Role: Shunt voltage reference providing overvoltage protection and threshold detection. Use Value: Tight 4.2–4.4 V tolerance and ≤1.0 µA leakage enable accurate fault flagging without loading the monitored rail. | Use Scenario: Supplying stable 4.3 V reference to ADC input of an ARM Cortex-M0+ MCU in battery-powered sensor nodes. IC Role / Device Role / Timing Role: Precision analog reference source for 12-bit internal ADC calibration. Use Value: −2.5 mV/°C tempco and ≤100 Ω rd minimize measurement drift across −40°C to +85°C operating range. |
| Linear Regulator Feedback | Automotive Body Control Module |
Use Scenario: Setting output voltage of adjustable LDO (e.g., TLV733 series) via external divider with Zener-based top leg. IC Role / Device Role / Timing Role: Stable voltage node defining regulation setpoint independent of IC internal reference. Use Value: 400 mW power rating supports robust operation under transient load surges without thermal runaway. | Use Scenario: Providing regulated 4.3 V bias to CAN transceiver logic interface in BCM subassembly. IC Role / Device Role / Timing Role: Local voltage clamp protecting transceiver VIO pin from supply ripple and ESD-induced overshoot. Use Value: 200°C max junction temperature and −55°C to +175°C storage range meet AEC-Q200 Grade 1 thermal requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4733A | Zener voltage 5.1 V ±5%, Pd = 1 W, DO-41 package, higher power but wider tolerance | Not suitable for 4.3 V reference; requires redesign of resistor network and thermal layout | Select only if system requires 5.1 V regulation and higher power margin |
| BZX55-C4V3 | Zener voltage 4.3 V ±5%, Pd = 500 mW, DO-35 package, same outline but looser voltage grade | Acceptable for non-critical references; lacks HZS4C3JRX's tight ±0.2 V binning (C3 grade) | Choose when cost sensitivity outweighs need for tight voltage matching |
Compared with 1N4733A and BZX55-C4V3, HZS4C3JRX delivers tighter voltage tolerance (±0.2 V vs. ±5%), lower dynamic impedance (≤100 Ω vs. ≥150 Ω), and optimized thermal performance for space-constrained 5 mm-pitch PCBs-making it preferred for precision shunt references in industrial and automotive subsystems.
Availability
HZS4C3JRX is available at Aetrix Electronics and suitable for industrial power monitors, embedded microcontroller references, linear regulator feedback networks, and automotive body control modules requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for HZS4C3JRX 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
ROHM Semiconductor is a Japanese semiconductor manufacturer specializing in analog, power, and sensor solutions for automotive, industrial, and consumer applications.
HZS4C3JRX belongs to ROHM's HZS Series of precision Zener diodes, engineered specifically for stable voltage regulation in compact, high-reliability power supply circuits where tight voltage tolerance and low temperature drift are critical.
FAQ
What is the exact zener voltage range specified for HZS4C3JRX?
HZS4C3JRX has a guaranteed zener voltage range of 4.2 V to 4.4 V at test current IZ = 5 mA, corresponding to the "C3" grade binning per ROHM's HZS Series datasheet Rev 1. This ±0.2 V tolerance is tighter than standard commercial Zeners and supports precision reference design without post-production trimming.
Is HZS4C3JRX suitable for surface-mount assembly?
No, HZS4C3JRX uses a DO-35 glass axial lead package with 5 mm lead pitch, designed exclusively for through-hole mounting and high-speed automatic insertion. It is not compatible with reflow soldering or SMT pick-and-place processes. For SMT alternatives, consider ROHM's UDZS series Schottky/Zener chips.
What is the maximum reverse leakage current for HZS4C3JRX and under what condition?
HZS4C3JRX specifies a maximum reverse leakage current of 1.0 µA at reverse voltage VR = 1.0 V and ambient temperature Ta = 25°C. This low leakage supports energy-efficient operation in battery-backed systems and minimizes error in high-impedance reference divider networks.
Does HZS4C3JRX have AEC-Q200 qualification for automotive use?
HZS4C3JRX is not individually AEC-Q200 qualified, but its absolute maximum ratings-including storage temperature (−55°C to +175°C) and junction temperature (200°C)-align with AEC-Q200 Grade 1 requirements. System-level qualification is required; ROHM provides supporting reliability data for HZS Series in automotive body electronics applications.
Can HZS4C3JRX be used in AC-coupled circuits?
No-HZS4C3JRX is explicitly tested and specified under DC conditions only, as noted in the datasheet. Its electrical characteristics (VZ, rd, IR) are not characterized for AC or pulsed operation. For AC stabilization, consider TVS diodes or active regulation circuits instead of relying on HZS4C3JRX.
HZS4C3JRX 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:
- -
HZS4C3JRX FAQ
1.How can I place an order for HZS4C3JRX through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS4C3JRX 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 HZS4C3JRX reliable?
The price and inventory of HZS4C3JRX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS4C3JRX is usually 5 days.
3.What payment methods are accepted for HZS4C3JRX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS4C3JRX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS4C3JRX?
HZS4C3JRX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS4C3JRX 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 HZS4C3JRX?
For technical support, including HZS4C3JRX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS4C3JRX requirements.
6.How does Aetrix verify that HZS4C3JRX is sourced from the original manufacturer or authorized distributors?
All HZS4C3JRX 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 HZS4C3JRX meets industry standards.
7.What is the process for return or replacement of HZS4C3JRX?
All HZS4C3JRX units undergo pre-shipment inspection (PSI). If there is an issue with HZS4C3JRX, 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 HZS4C3JRX part is unused and in its original packaging.
Return procedure for HZS4C3JRX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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