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Renesas HZ5B1JTA-E
- Part No.:
- HZ5B1JTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ5B1JTA-E.pdf
- Description:
- DIODE ZENER 0.5W
- Quantity:
- Payment:
- Shipping:
Inventory:155,000
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Product details
Overview
HZ5B1JTA-E from Renesas is a silicon planar Zener diode engineered for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 5.6 V (min 5.5 V, max 5.8 V), dynamic resistance of 80 Ω at 0.5 mA, maximum power dissipation of 400 mW, and junction temperature rating up to 175°C - deployed in reference voltage sources and stabilized power supplies.
For engineers reviewing the HZ5B1JTA-E datasheet, HZ5B1JTA-E pinout, HZ5B1JTA-E application, or HZ5B1JTA-E equivalent, key selection criteria include zener voltage tolerance (±0.3 V), low-noise performance (1/3–1/10 lower than standard 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 avalanche breakdown in a planar-diffused silicon junction, optimized for low dynamic impedance and minimal noise generation under DC bias conditions. Its zener voltage exhibits a temperature coefficient near zero around 5.6 V, enabling stable reference performance without external compensation.
The HZ5B1JTA-E is rated for 400 mW total power dissipation at 25°C ambient, with derating to zero at 175°C junction temperature. It maintains reverse leakage current ≤1 μA at VR = 2.0 V and supports zener test current of 0.5 mA per specification - consistent with low-power, high-stability reference design requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.5 V min / 5.8 V max at IZ = 0.5 mA - defines tight 5.6 V nominal regulation point for precision references |
| Dynamic Resistance (rd) | 80 Ω max at IZ = 0.5 mA - ensures minimal output voltage variation under load transients |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - supports compact PCB layout without forced cooling |
| Reverse Leakage Current (IR) | ≤1 μA max at VR = 2.0 V - reduces error contribution in high-impedance bias networks |
| Junction Temperature (Tj) | −55°C to +175°C - enables operation in automotive under-hood and industrial control environments |
| Noise Performance | ≈1/3–1/10 lower than HZ series - critical for audio preamps, sensor signal conditioning, and ADC reference buffers |
Pinout & Package
Package: DO-35 glass axial package (JEITA code GRZZ0002ZB-A, Renesas code SC-40), orange body color with navy blue cathode band, 2.0 mm diameter × 26.0 mm length, 0.13 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener voltage reference terminal | Connected to regulated output node; polarity must be observed to maintain reverse-bias operation |
| 2 (Anode) | Reference ground return path | Completes bias current loop; low-impedance connection required to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener structure | Diode noise reduced to 10–33% of standard HZ-series - directly improves SNR in sensitive analog front-ends |
| Stable low-impedance regulation | 80 Ω dynamic resistance at 0.5 mA - maintains <±10 mV output shift under ±1 mA load change |
| Wide operating temperature range | −55°C to +175°C junction rating - supports deployment in engine control units and power supply monitoring |
| Precision voltage tolerance | ±0.3 V absolute zener voltage window at 5.6 V - eliminates need for post-assembly trimming in many applications |
| Standard DO-35 footprint | Compatible with legacy through-hole assembly and automated optical inspection - no retooling required |
Applications
| High-Precision Reference Source | Low-Noise Audio Biasing |
|---|---|
Use Scenario: Generating stable 5.6 V reference for 16-bit SAR ADCs and instrumentation amplifiers in medical data acquisition systems. IC Role / Device Role / Timing Role: Two-terminal passive voltage reference providing primary regulation node for analog signal chain biasing. Use Value: Low dynamic resistance (80 Ω) and ultra-low noise suppress quantization errors and improve effective resolution by ≥1.5 bits. |
Use Scenario: Setting quiet bias points for JFET-input op-amps and discrete transistor stages in studio-grade microphone preamplifiers. IC Role / Device Role / Timing Role: Low-noise zener element establishing DC operating point without introducing audible hiss or hum. Use Value: Noise level reduced to ≤30% of standard zeners - measurable improvement in THD+N below −110 dB. |
| Industrial Sensor Excitation | Programmable Power Supply Feedback |
Use Scenario: Providing excitation voltage for RTD and strain gauge bridges in factory automation temperature and pressure transmitters. IC Role / Device Role / Timing Role: Stable, low-drift voltage source referenced to system ground for ratiometric measurement accuracy. Use Value: Zener voltage temperature coefficient near zero at 5.6 V minimizes drift-induced offset error across −40°C to +85°C operating range. |
Use Scenario: Closing feedback loop in adjustable DC-DC converters where output voltage is set via resistor divider tied to HZ5B1JTA-E reference node. IC Role / Device Role / Timing Role: Precision shunt reference replacing TL431 in cost-sensitive 5–12 V output supplies. Use Value: 400 mW power rating allows direct use without series resistor - simplifies BOM and improves long-term stability vs. IC-based alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5232B (ON Semiconductor) | Zener voltage 5.6 V ±5%, rd = 17 Ω typical but higher noise; DO-35 package, Pd = 500 mW | Better dynamic impedance but lacks documented low-noise optimization; suited for general regulation over precision analog | Select when lowest possible rd dominates over noise floor - verify spectral noise density in target bandwidth |
| BZX55-C5V6 (Vishay) | Zener voltage 5.6 V ±5%, rd = 40 Ω typical, noise not specified; DO-35, Pd = 500 mW, Tj = 175°C | Higher production volume and broader distributor availability; no published noise reduction claim vs. HZ-L series | Choose for cost-driven designs where 5.6 V reference suffices and noise is secondary to supply chain resilience |
Compared with 1N5232B and BZX55-C5V6, the HZ5B1JTA-E trades slightly higher dynamic resistance for quantifiably lower broadband noise - making it uniquely suitable for metrology-grade references and low-level signal conditioning where noise spectral density is a hard constraint.
Availability
HZ5B1JTA-E is available at Aetrix Electronics and suitable for precision voltage reference, low-noise analog biasing, and industrial sensor excitation requiring stable component supply with full traceability and long-lifecycle support.
Supply support for HZ5B1JTA-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 Technology Corp. is a Japanese semiconductor manufacturer specializing in microcontrollers, analog mixed-signal devices, and power management ICs for automotive, industrial, and infrastructure markets.
The HZ-L Series was developed specifically to address low-noise voltage reference needs in high-fidelity analog systems, extending Renesas' legacy in precision discrete components for measurement and signal integrity-critical applications.
FAQ
What is the exact zener voltage range for HZ5B1JTA-E at 0.5 mA test current?
The HZ5B1JTA-E has a guaranteed zener voltage range of 5.5 V minimum to 5.8 V maximum when tested at IZ = 0.5 mA and Ta = 25°C. This 0.3 V window centers on 5.6 V and reflects tighter binning than standard Zener diodes, supporting applications requiring predictable regulation without post-calibration.
Does HZ5B1JTA-E support operation above 100°C ambient temperature?
Yes, the HZ5B1JTA-E is rated for junction temperatures up to 175°C and storage from −55°C to +175°C. At 100°C ambient, its power dissipation capability remains above 250 mW per the derating curve in the datasheet - enabling use in engine control modules and industrial motor drives without heatsinking.
How does the noise performance of HZ5B1JTA-E compare to generic Zener diodes?
The HZ5B1JTA-E achieves approximately 1/3 to 1/10 the noise level of standard HZ-series Zeners due to proprietary planar diffusion and junction geometry. This is verified in Renesas' characterization data and makes HZ5B1JTA-E suitable for audio, precision ADC, and sensor signal conditioning where broadband noise directly impacts measurement fidelity.
Is HZ5B1JTA-E compatible with automated through-hole assembly processes?
Yes, the HZ5B1JTA-E uses the industry-standard DO-35 axial package (JEITA GRZZ0002ZB-A) with 2.0 mm diameter and 26.0 mm length. Its orange body with navy blue cathode band supports optical recognition, and mechanical tolerances align with IPC-7351 Class B guidelines for wave soldering and selective soldering equipment.
What is the maximum reverse leakage current specification for HZ5B1JTA-E?
The HZ5B1JTA-E specifies maximum reverse leakage current of 1 μA at VR = 2.0 V and Ta = 25°C. This low leakage supports high-impedance bias networks and minimizes error contributions in precision voltage dividers and reference buffers where input currents must remain below 100 nA.
HZ5B1JTA-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:
- -
HZ5B1JTA-E FAQ
1.How can I place an order for HZ5B1JTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ5B1JTA-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 HZ5B1JTA-E reliable?
The price and inventory of HZ5B1JTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ5B1JTA-E is usually 5 days.
3.What payment methods are accepted for HZ5B1JTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ5B1JTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ5B1JTA-E?
HZ5B1JTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ5B1JTA-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 HZ5B1JTA-E?
For technical support, including HZ5B1JTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ5B1JTA-E requirements.
6.How does Aetrix verify that HZ5B1JTA-E is sourced from the original manufacturer or authorized distributors?
All HZ5B1JTA-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 HZ5B1JTA-E meets industry standards.
7.What is the process for return or replacement of HZ5B1JTA-E?
All HZ5B1JTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ5B1JTA-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 HZ5B1JTA-E part is unused and in its original packaging.
Return procedure for HZ5B1JTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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