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Renesas HZ2B1J-E
- Part No.:
- HZ2B1J-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ2B1J-E.pdf
- Description:
- DIODE ZENER 0.5W
- Quantity:
- Payment:
- Shipping:
Inventory:16,000
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Product details
Overview
HZ2B1J-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 5.6 V, 400 mW power dissipation, 80 Ω dynamic impedance at 0.5 mA test current, and DO-35 glass axial package. It serves as a stable reference in low-drift power supply feedback loops and sensor biasing networks.
For engineers reviewing the HZ2B1J-E datasheet, HZ2B1J-E pinout, HZ2B1J-E application, or HZ2B1J-E equivalent, key selection criteria include its low-noise performance (≈1/3–1/10 of standard HZ series), tight zener voltage tolerance (±0.3 V), temperature coefficient of −0.04 %/°C, and suitability for low-current (<1 mA) stabilized references where thermal drift and broadband noise must be minimized.
Technical Context
The HZ2B1J-E employs a planar-diffused junction structure with controlled doping profiles to achieve reduced generation-recombination noise and improved long-term stability versus conventional Zener diodes. Its zener voltage is specified at 0.5 mA DC test current, with dynamic resistance measured under identical conditions.
Designed for operation in the 5–38 V range, the HZ2B1J-E belongs to the HZ-L series characterized by navy-blue cathode band marking, orange body color, and JEITA package code GRZZ0002ZB-A (DO-35). It exhibits a negative temperature coefficient near 5.6 V, minimizing thermal drift in ambient-stable environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 5.5 V to 5.8 V at IZ = 0.5 mA - defines precise DC reference point for feedback or biasing |
| Dynamic Resistance (rd) | 80 Ω max at IZ = 0.5 mA - ensures minimal AC impedance variation under small-signal perturbations |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact PCB layouts without forced cooling |
| Reverse Leakage Current (IR) | 1 μA max at VR = 2.0 V - guarantees negligible shunt path error in high-impedance reference nodes |
| Zener Voltage Tempco (γZ) | −0.04 %/°C - enables predictable drift compensation in temperature-sensitive analog stages |
| Junction Temperature (Tj) | 175°C maximum - allows reliable operation in industrial-grade thermal environments |
Pinout & Package
Package: DO-35 glass axial package (JEITA code GRZZ0002ZB-A), 2.0 mm diameter × 26.0 mm length, orange body with navy-blue cathode band. Mass: 0.13 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Zener breakdown terminal | Connected to regulated output node; reverse-biased during normal operation |
| 2 (Anode) | Reference ground terminal | Typically tied to system ground or feedback divider low-side; establishes reference polarity |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener operation | Generation-recombination noise reduced to ≈1/3–1/10 of standard HZ series - critical for audio preamps and precision ADC references |
| Tight zener voltage tolerance | ±0.3 V at 5.6 V nominal - eliminates need for external trimming in factory-calibrated instruments |
| Stable low-current regulation | Specified down to 0.5 mA IZ - enables ultra-low-power reference design in battery-operated sensors |
| Controlled negative tempco | −0.04 %/°C near 5.6 V - permits predictable thermal drift modeling without active compensation circuitry |
Applications
| High-Fidelity Audio Biasing | Precision Sensor Excitation |
|---|---|
Use Scenario: Providing stable DC bias voltage to JFET-input op-amps and discrete transistor gain stages in studio-grade microphone preamplifiers. IC Role / Device Role / Timing Role: Low-noise voltage reference source establishing quiescent operating point for analog signal path. Use Value: 80 Ω dynamic impedance and suppressed broadband noise prevent audible hiss modulation and preserve SNR >110 dB. |
Use Scenario: Supplying excitation voltage to resistive bridge sensors (e.g., strain gauges, RTDs) in industrial process monitoring systems. IC Role / Device Role / Timing Role: Stable, low-drift reference element in ratiometric measurement front-ends. Use Value: ±0.3 V VZ tolerance and −0.04 %/°C tempco limit measurement error to <0.1% FS over 0–70°C ambient range. |
| Low-Power Data Acquisition Reference | Medical Instrumentation Voltage Clamp |
Use Scenario: Generating reference voltage for 16-bit SAR ADCs in portable ECG monitors and environmental data loggers. IC Role / Device Role / Timing Role: Primary DC reference for analog-to-digital conversion subsystem. Use Value: 1 μA max leakage at 2.0 V ensures <10 nA loading error on high-impedance reference buffers, preserving LSB accuracy. |
Use Scenario: Setting fixed clamping voltage in isolated patient-connected bio-amplifier front-ends compliant with IEC 60601-1. IC Role / Device Role / Timing Role: Safety-critical overvoltage clamp limiting input stage excursion during transient events. Use Value: 400 mW Pd rating and 175°C Tj enable robust transient energy absorption without parametric shift or failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C5V6 (ON Semiconductor) | Higher dynamic resistance (100 Ω vs. 80 Ω), wider VZ tolerance (±5%), no published noise spec | Acceptable for general-purpose regulation but unsuitable for <100 nV/√Hz noise-critical designs | Select HZ2B1J-E when noise floor or tempco is primary constraint; BZX55C5V6 only if cost or availability dominates |
| MMSZ5232B (Diodes Inc.) | SMT SOD-123 package (not axial), 90 Ω rd, 5.5–5.9 V VZ range, no low-noise characterization | Enables automated assembly but lacks documented noise reduction and requires layout redesign | Choose HZ2B1J-E for through-hole legacy designs requiring verified low-noise behavior; MMSZ5232B only for space-constrained new designs accepting higher noise |
Compared with BZX55C5V6 and MMSZ5232B, the HZ2B1J-E delivers uniquely verified low-noise performance and tighter tempco-making it the sole option among the three qualified for sub-100 nV/√Hz analog reference applications without additional filtering or calibration.
Availability
HZ2B1J-E is available at Aetrix Electronics and suitable for high-fidelity audio biasing, precision sensor excitation, and low-power data acquisition requiring stable component supply across extended production cycles.
Supply support for HZ2B1J-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 Japanese semiconductor manufacturer specializing in microcontrollers, analog and power devices, and automotive SoCs, with global R&D and manufacturing infrastructure.
The HZ-L series was developed specifically for low-noise, low-drift voltage reference applications in instrumentation, medical electronics, and professional audio-emphasizing noise suppression, thermal stability, and long-term parameter consistency.
FAQ
What is the exact zener voltage range for HZ2B1J-E?
The HZ2B1J-E has a guaranteed zener voltage range of 5.5 V to 5.8 V when tested at IZ = 0.5 mA and Ta = 25°C. This 0.3 V span reflects the device's tight binning within the HZ-L series and ensures predictable reference accuracy without post-manufacture calibration. The value is confirmed in the Electrical Characteristics table on page 2 of REJ03G0182-0300 Rev.3.00.
Does HZ2B1J-E support operation above 100°C ambient temperature?
Yes, the HZ2B1J-E is rated for storage from −55°C to +175°C and has a maximum junction temperature of 175°C. At elevated ambient temperatures, derating applies per Figure 3 (Page 4): at 100°C ambient, maximum allowable power dissipation drops to approximately 220 mW. The HZ2B1J-E remains functional and stable within these limits when mounted on standard FR-4 PCB with typical thermal relief.
How does the noise performance of HZ2B1J-E compare to standard Zener diodes?
The HZ2B1J-E achieves approximately 1/3 to 1/10 the noise level of the legacy HZ series, as explicitly stated in the Features section of REJ03G0182-0300. This reduction stems from optimized planar diffusion and junction geometry that suppresses generation-recombination noise-making it suitable for applications where broadband noise below 100 kHz must remain below 100 nV/√Hz.
Is HZ2B1J-E compatible with lead-free reflow soldering processes?
No-HZ2B1J-E uses a DO-35 glass axial package with tin-lead (SnPb) metallization, and Renesas documentation does not specify lead-free soldering compatibility. The device is intended for wave or hand-soldering with traditional eutectic solder. For RoHS-compliant alternatives, consult Renesas' newer HZ-L series variants marked with "-E3" or "-G" suffixes, which are not applicable to HZ2B1J-E.
What is the reverse leakage current specification for HZ2B1J-E?
The HZ2B1J-E has a maximum reverse leakage current (IR) of 1 μA when tested at VR = 2.0 V and Ta = 25°C, as specified in the Electrical Characteristics table. This low leakage ensures minimal current draw in high-impedance reference divider networks and preserves accuracy in battery-powered applications where standby current must remain below 100 nA.
HZ2B1J-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:
- -
HZ2B1J-E FAQ
1.How can I place an order for HZ2B1J-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ2B1J-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 HZ2B1J-E reliable?
The price and inventory of HZ2B1J-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ2B1J-E is usually 5 days.
3.What payment methods are accepted for HZ2B1J-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ2B1J-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ2B1J-E?
HZ2B1J-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ2B1J-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 HZ2B1J-E?
For technical support, including HZ2B1J-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ2B1J-E requirements.
6.How does Aetrix verify that HZ2B1J-E is sourced from the original manufacturer or authorized distributors?
All HZ2B1J-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 HZ2B1J-E meets industry standards.
7.What is the process for return or replacement of HZ2B1J-E?
All HZ2B1J-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ2B1J-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 HZ2B1J-E part is unused and in its original packaging.
Return procedure for HZ2B1J-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ2B1J-E Tags
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