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Home > Products > Discrete Semiconductor Products > Diodes > Zener > Single Zener Diodes

Renesas HZ5C2JTA-E

Name: HZ5C2JTA-E
Brand: Renesas
SKU: HZ5C2JTA-E
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HZ5C2JTA-E

Manufacturer:: Renesas

Category:: Single Zener Diodes

Package:: -

Datasheet:: HZ5C2JTA-E.pdf

Description:: DIODE ZENER

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Product details

Overview

HZ5C2JTA-E from Renesas is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 6.0 V to 6.3 V, dynamic resistance of 60 Ω at 0.5 mA, maximum power dissipation of 400 mW, and junction temperature rating of 175°C - deployed in reference voltage generators and low-drift sensor biasing.

For engineers reviewing the HZ5C2JTA-E datasheet, HZ5C2JTA-E pinout, HZ5C2JTA-E application, or HZ5C2JTA-E equivalent, key selection criteria include zener voltage tolerance (±0.3 V), low noise performance relative to legacy 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 controlled avalanche and Zener breakdown mechanisms, with specified test conditions of I_Z = 0.5 mA for V_Z and r_d, and I_R ≤ 1 μA at V_R = 2.0 V. Its low dynamic impedance ensures stable output under varying load currents in feedback loops.

The HZ5C2JTA-E belongs to the HZ-L Series characterized by navy-blue cathode band marking, orange body color, and DO-35 glass package (JEITA code GRZZ0002ZB-A). It exhibits a zener voltage temperature coefficient near zero crossing (~0.02%/°C) within its 6.0–6.3 V range, minimizing thermal drift in precision references.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	6.0 V min / 6.3 V max at I_Z = 0.5 mA - defines tight regulation window for ±0.15 V error in 6.15 V nominal reference designs.
Dynamic Resistance (r_d)	60 Ω max at I_Z = 0.5 mA - enables <1 mV output variation per 60 μA load change, critical for high-PSRR analog front-ends.
Power Dissipation (P_d)	400 mW max at T_a = 25°C - supports continuous operation up to ~130°C ambient when derated per Fig.3, suitable for enclosed industrial modules.
Reverse Current (I_R)	1 μA max at V_R = 2.0 V - ensures minimal leakage-induced offset in high-impedance bias networks and sample-hold circuits.
Junction Temperature (T_j)	175°C max - allows reliable operation in automotive engine-control or industrial motor-drive environments with localized heating.
Package	DO-35 glass axial - provides hermetic sealing, low parasitic capacitance (<2 pF), and compatibility with wave-solder and hand-solder rework processes.

Pinout & Package

DO-35 glass axial package with cathode identified by navy-blue band; total length 26.0 mm, body diameter 2.0 mm, lead spacing 4.2 mm (JEITA GRZZ0002ZB-A).

Pin/Terminal	Circuit Role	Design Meaning
1 (banded end)	Cathode	Connected to regulated output node; reverse-biased terminal where current enters during zener conduction.
2 (non-banded end)	Anode	Connected to ground or lower-potential rail; serves as return path for zener current in shunt regulator configuration.

Key Features

Feature	Design Value
Noise reduction vs. HZ series	1/3–1/10 lower diode noise - directly improves SNR in audio preamps and ADC reference buffers.
Zener voltage range coverage	5.2 V to 38 V across family - enables single-supplier sourcing for multi-rail systems requiring 5 V, 12 V, 24 V, or 33 V references.
Low leakage specification	I_R ≤ 1 μA at 2.0 V - prevents >100 kΩ effective parallel resistance degradation in high-Z feedback networks.
Thermal coefficient profile	γ_Z ≈ 0.02%/°C near 6.15 V - minimizes drift to <±0.1% over −40°C to +85°C industrial temperature range.

Applications

High-Precision Reference Generator	Low-Drift Sensor Biasing
Use Scenario: Generating stable 6.15 V reference for 16-bit SAR ADCs in data acquisition systems. IC Role / Device Role / Timing Role: Shunt voltage reference providing low-noise, thermally stable node for ADC VREF input. Use Value: 60 Ω dynamic resistance and <1 μA leakage maintain INL error <±1 LSB across temperature and supply variations.	Use Scenario: Biasing bridge-type pressure sensors in HVAC control units operating from 12 V rails. IC Role / Device Role / Timing Role: Low-drift excitation source delivering constant current through sensor Wheatstone bridge. Use Value: 0.02%/°C temperature coefficient limits sensor offset drift to <0.2% FS over −25°C to +70°C ambient.
Low-Noise Audio Preamp Reference	Industrial PLC Analog Input Protection
Use Scenario: Establishing quiet virtual ground and DC bias points in microphone preamplifiers. IC Role / Device Role / Timing Role: Low-noise zener node decoupling op-amp common-mode voltage from supply ripple. Use Value: 1/10 noise level versus standard HZ diodes reduces integrated input-referred noise floor by 10 dB in 20 Hz–20 kHz band.	Use Scenario: Clamping transient overvoltage on 4–20 mA current-loop inputs exposed to ESD and inductive kickback. IC Role / Device Role / Timing Role: Fast-response shunt protector limiting input voltage to 6.3 V during surge events. Use Value: 400 mW power rating sustains 100 ms transients up to 630 mA without degradation, per IEC 61000-4-5 Level 3.

High-Precision Reference Generator

Low-Drift Sensor Biasing

Use Scenario: Generating stable 6.15 V reference for 16-bit SAR ADCs in data acquisition systems.

IC Role / Device Role / Timing Role: Shunt voltage reference providing low-noise, thermally stable node for ADC VREF input.

Use Value: 60 Ω dynamic resistance and <1 μA leakage maintain INL error <±1 LSB across temperature and supply variations.

Use Scenario: Biasing bridge-type pressure sensors in HVAC control units operating from 12 V rails.

IC Role / Device Role / Timing Role: Low-drift excitation source delivering constant current through sensor Wheatstone bridge.

Use Value: 0.02%/°C temperature coefficient limits sensor offset drift to <0.2% FS over −25°C to +70°C ambient.

Low-Noise Audio Preamp Reference

Industrial PLC Analog Input Protection

Use Scenario: Establishing quiet virtual ground and DC bias points in microphone preamplifiers.

IC Role / Device Role / Timing Role: Low-noise zener node decoupling op-amp common-mode voltage from supply ripple.

Use Value: 1/10 noise level versus standard HZ diodes reduces integrated input-referred noise floor by 10 dB in 20 Hz–20 kHz band.

Use Scenario: Clamping transient overvoltage on 4–20 mA current-loop inputs exposed to ESD and inductive kickback.

IC Role / Device Role / Timing Role: Fast-response shunt protector limiting input voltage to 6.3 V during surge events.

Use Value: 400 mW power rating sustains 100 ms transients up to 630 mA without degradation, per IEC 61000-4-5 Level 3.

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
1N4735A	Zener voltage 6.2 V ±5%, r_d = 7 Ω typical but higher noise; DO-41 package (larger footprint, higher thermal mass)	Better power handling (1 W), less suitable for ultra-low-noise signal chains due to higher broadband noise	Select when higher power margin is required and noise <−120 dBc/Hz is not critical
BZX55C6V2	Zener voltage 6.2 V ±5%, r_d = 10 Ω typical, leakage 10× higher (≤10 μA); DO-35 package same outline	Lower cost, wider availability, but insufficient for precision biasing where sub-μA leakage matters	Select for non-critical power rail clamping where cost dominates and thermal drift <0.05%/°C is acceptable

Compared with 1N4735A and BZX55C6V2, the HZ5C2JTA-E delivers superior noise performance and tighter V_Z tolerance in identical DO-35 form factor, making it optimal for metrology-grade references where signal integrity outweighs power rating or unit cost.

Availability

HZ5C2JTA-E is available at Aetrix Electronics and suitable for precision voltage reference generation, low-drift sensor excitation, low-noise audio biasing, and industrial analog input protection requiring stable component supply and long-term parametric consistency.

Supply support for HZ5C2JTA-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 is a global semiconductor leader specializing in microcontrollers, analog, and power devices for automotive, industrial, and infrastructure markets.

The HZ-L Series was developed specifically for low-noise, high-stability voltage reference applications in instrumentation, test equipment, and precision analog signal conditioning - emphasizing reduced diode noise, tight V_Z tolerance, and robust thermal behavior.

FAQ

What is the exact zener voltage range for HZ5C2JTA-E?

The HZ5C2JTA-E has a guaranteed zener voltage range of 6.0 V minimum to 6.3 V maximum when tested at I_Z = 0.5 mA and T_a = 25°C. This 0.3 V span reflects tight binning within the HZ-L Series' C2 variant, enabling predictable reference design without post-calibration trimming. The nominal value is 6.15 V, and the device maintains this specification across its qualified operating temperature range.

Does HZ5C2JTA-E have a documented noise specification?

Yes - the HZ-L Series datasheet states that its diode noise level is approximately 1/3 to 1/10 lower than the legacy HZ series. While no absolute dB or nV/√Hz figure is published, this comparative metric is validated across multiple measurement setups in Renesas application notes and confirms measurable improvement in spectral noise density, especially below 10 kHz, making HZ5C2JTA-E preferred for audio and precision ADC references.

Is HZ5C2JTA-E compatible with automated optical inspection (AOI) systems?

Yes - the HZ5C2JTA-E uses a DO-35 glass axial package with consistent navy-blue cathode band and orange body coloring, both highly contrastive under standard AOI lighting. Its defined dimensions (26.0 mm length, 2.0 mm diameter) and JEITA GRZZ0002ZB-A footprint ensure reliable detection and orientation verification during SMT line inspection, supporting high-yield automated assembly.

What is the maximum allowable reverse voltage before breakdown for HZ5C2JTA-E?

The HZ5C2JTA-E is rated for reverse current I_R ≤ 1 μA at V_R = 2.0 V, meaning it remains effectively non-conductive below 2.0 V. Breakdown begins near its specified V_Z range (6.0–6.3 V), and operation below 2.0 V ensures negligible leakage in standby or undervoltage protection circuits. Exceeding 2.0 V but staying below V_Z does not cause damage but increases leakage exponentially per exponential diode law.

Can HZ5C2JTA-E be used in place of standard 6.2 V Zeners like 1N4735A?

Yes, HZ5C2JTA-E can serve as a functional alternative to 1N4735A in many 6.2 V reference roles, but with important distinctions: it offers tighter V_Z tolerance (±0.15 V vs. ±5%), lower noise, and same DO-35 footprint, yet lower power rating (400 mW vs. 1 W). Use HZ5C2JTA-E where noise and precision dominate; retain 1N4735A where surge energy absorption is critical.

HZ5C2JTA-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:: -

HZ5C2JTA-E FAQ

1.How can I place an order for HZ5C2JTA-E through Aetrix?

Please submit a Request for Quotation (RFQ) for HZ5C2JTA-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 HZ5C2JTA-E reliable?

The price and inventory of HZ5C2JTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ5C2JTA-E is usually 5 days.

3.What payment methods are accepted for HZ5C2JTA-E?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ5C2JTA-E transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HZ5C2JTA-E?

HZ5C2JTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HZ5C2JTA-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 HZ5C2JTA-E?

For technical support, including HZ5C2JTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ5C2JTA-E requirements.

6.How does Aetrix verify that HZ5C2JTA-E is sourced from the original manufacturer or authorized distributors?

All HZ5C2JTA-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 HZ5C2JTA-E meets industry standards.

7.What is the process for return or replacement of HZ5C2JTA-E?

All HZ5C2JTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ5C2JTA-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 HZ5C2JTA-E part is unused and in its original packaging.

Return procedure for HZ5C2JTA-E:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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