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Renesas HZU7.5B1JTRF-E
- Part No.:
- HZU7.5B1JTRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU7.5B1JTRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
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Inventory:36,000
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Product details
Overview
HZU7.5B1JTRF-E from Renesas Electronics is a silicon epitaxial planar Zener diode optimized for hard-knee, low-noise voltage reference applications. It delivers a nominal Zener voltage of 7.5 V at 5 mA, with dynamic resistance of 400 Ω (typical), reverse current ≤100 nA at 5.7 V, and temperature coefficient of −2.0 mV/°C - enabling stable biasing in precision analog circuits.
For engineers reviewing the HZU7.5B1JTRF-E datasheet, HZU7.5B1JTRF-E pinout, HZU7.5B1JTRF-E application, or HZU7.5B1JTRF-E equivalent, this device is selected for ultra-low-noise voltage regulation in space-constrained surface-mount designs requiring tight VZ tolerance and minimal thermal drift.
Technical Context
The HZU7.5B1JTRF-E belongs to the HZU-LL series, engineered for semi-logarithmic linear VZ–IZ characteristics across 1 nA to 1 mA, reducing noise by ~70–90% versus standard HZU diodes. Its hard-knee Zener behavior ensures predictable turn-on with minimal knee curvature.
It operates within a junction temperature range of −55°C to +150°C and is rated for 150 mW power dissipation at 25°C ambient, derating linearly above 25°C per Fig.3 in the datasheet. The device uses a silicon epitaxial planar structure to achieve low leakage and repeatable breakdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.3 V min / 7.7 V max at IZ = 5 mA - defines precise reference point for analog feedback loops |
| Dynamic Resistance (ZZT) | 400 Ω typical at IZT = 5 mA - determines load regulation sensitivity and noise coupling |
| Reverse Current (IR) | ≤100 nA max at VR = 5.7 V - ensures negligible error current in high-impedance reference nodes |
| Temperature Coefficient (γZ) | −2.0 mV/°C typical - enables <±0.02%/°C drift over −25°C to +85°C for stable references |
| Power Dissipation (Pd) | 150 mW max at Ta = 25°C - sets maximum continuous bias current limit (~20 mA at 7.5 V) |
| Junction Temperature (Tj) | 150°C max - supports operation in thermally demanding industrial environments |
Pinout & Package
Package: Ultra Small Resin Package (URP), JEITA code PTSP0002ZA-A, SC-76A outline, mass 0.004 g. Surface-mount compatible with 0.8 mm × 1.25 mm footprint and 0.45 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to higher-potential node; polarity mark on package body identifies this terminal |
| 2 | Anode | Connected to lower-potential node (typically ground or return path); reverse-biased operation requires anode at lower voltage than cathode |
Key Features
| Feature | Design Value |
|---|---|
| Hard-knee Zener characteristic | VZ–IZ curve exhibits sharp, low-curvature turn-on from 1 nA to 1 mA - improves reference stability under varying load currents |
| Ultra-low noise voltage | ~70–90% lower than standard HZU series - reduces RMS noise in precision ADC references and op-amp bias networks |
| Reduced temperature coefficient | Approximately half that of HZU series - lowers thermal drift contribution in wide-temperature-range instrumentation |
| Surface-mount URP package | 0.8 mm × 1.25 mm footprint - enables high-density PCB layouts in portable and miniaturized analog signal chains |
Applications
| High-Precision Voltage Reference | Low-Noise Sensor Biasing |
|---|---|
Use Scenario: Providing stable 7.5 V reference for 16-bit SAR ADCs in industrial data acquisition modules. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to generate fixed, low-drift reference voltage for ADC internal reference buffer. Use Value: Tight VZ tolerance (±0.2 V) and −2.0 mV/°C TC ensure reference error remains <±0.5 LSB over −40°C to +85°C. | Use Scenario: Biasing bridge-type pressure sensors in automotive cabin air quality monitors. IC Role / Device Role / Timing Role: Low-noise Zener supplying excitation voltage to sensor Wheatstone bridge, minimizing noise-induced measurement uncertainty. Use Value: 100 nA max reverse current and hard-knee behavior prevent bias current variation across sensor output range, improving SNR by >12 dB. |
| Portable Instrumentation Power Rails | Calibration-Grade Analog Front-Ends |
Use Scenario: Generating local 7.5 V rail for op-amp gain stages in handheld multimeters. IC Role / Device Role / Timing Role: Precision shunt regulator maintaining regulated voltage despite battery voltage sag and load transients. Use Value: 400 Ω dynamic resistance limits output voltage shift to <2 mV under ±1 mA load steps - preserves measurement accuracy during auto-ranging. | Use Scenario: Serving as primary reference in factory-calibrated thermocouple input modules. IC Role / Device Role / Timing Role: Primary voltage reference source for ratiometric DAC calibration and cold-junction compensation circuitry. Use Value: Semi-logarithmic linearity from 1 nA to 1 mA ensures consistent reference behavior across calibration current sweep profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C7V5 | Zener voltage tolerance ±5%, TC ≈ −3.5 mV/°C, ZZT = 600 Ω typ, Pd = 300 mW | Higher power rating but looser VZ tolerance and greater thermal drift - suitable where cost outweighs precision | Select when board-level thermal management allows higher dissipation and ±5% reference accuracy is acceptable |
| MMSZ5236B | Zener voltage tolerance ±5%, TC ≈ −2.5 mV/°C, ZZT = 500 Ω typ, Pd = 350 mW, SOD-123 package | Larger footprint (2.7 mm × 1.6 mm), higher Pd, but no hard-knee optimization - better for general-purpose regulation | Choose when layout space permits larger package and ultra-low noise is not required for sensor biasing |
Compared with BZX84-C7V5 and MMSZ5236B, the HZU7.5B1JTRF-E offers tighter VZ tolerance (±0.2 V vs. ±5%), lower TC (−2.0 vs. −2.5 to −3.5 mV/°C), and hard-knee linearity - making it uniquely suited for metrology-grade references where noise and drift dominate error budgets.
Availability
HZU7.5B1JTRF-E is available at Aetrix Electronics and suitable for high-precision voltage reference, low-noise sensor biasing, and portable instrumentation power rails requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for HZU7.5B1JTRF-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 manufacturer specializing in microcontrollers, analog, power, and timing solutions for industrial, automotive, and infrastructure markets.
The HZU-LL series was developed specifically for ultra-low-noise, hard-knee Zener reference applications in space-constrained analog systems - targeting instrumentation, sensor interfaces, and precision power management where traditional Zeners introduce unacceptable noise or drift.
FAQ
What is the Zener voltage tolerance of HZU7.5B1JTRF-E at 5 mA?
The HZU7.5B1JTRF-E has a specified Zener voltage range of 7.3 V minimum to 7.7 V maximum at test current IZ = 5 mA, corresponding to a ±0.2 V absolute tolerance. This tight tolerance is confirmed in the Electrical Characteristics table on page 2 of the REJ03G1216-0500 datasheet and enables direct use in applications requiring sub-1% reference accuracy without external trimming. The HZU7.5B1JTRF-E achieves this via laser-trimmed epitaxial process control.
Does HZU7.5B1JTRF-E support operation at elevated ambient temperatures?
Yes, the HZU7.5B1JTRF-E is rated for storage from −55°C to +150°C and junction operation up to 150°C. Its power dissipation derates linearly above 25°C ambient, delivering ~120 mW at 50°C and ~60 mW at 100°C per Fig.3 in the datasheet. This thermal performance makes the HZU7.5B1JTRF-E suitable for under-hood automotive sensor modules and industrial PLC analog input stages where ambient temperatures exceed 85°C.
How does the noise performance of HZU7.5B1JTRF-E compare to standard Zener diodes?
The HZU7.5B1JTRF-E delivers approximately 1/3 to 1/10 the noise voltage of standard HZU-series Zeners, as stated in the Features section of the datasheet. This ultra-low-noise behavior stems from its hard-knee epitaxial planar structure and optimized doping profile, directly reducing broadband RMS noise in precision reference paths - critical for 16+ bit data converters and low-level sensor signal conditioning where HZU7.5B1JTRF-E is commonly deployed.
What is the reverse leakage current specification for HZU7.5B1JTRF-E?
The HZU7.5B1JTRF-E specifies maximum reverse current IR ≤100 nA at VR = 5.7 V (i.e., 0.75 × VZ nominal), per the Electrical Characteristics table. This low leakage ensures minimal error current injection into high-impedance reference nodes - essential for maintaining accuracy in micropower sensor interfaces and battery-operated instrumentation where the HZU7.5B1JTRF-E is frequently used.
Is HZU7.5B1JTRF-E compatible with reflow soldering processes?
Yes, the HZU7.5B1JTRF-E's URP package (JEITA code PTSP0002ZA-A) is qualified for standard lead-free reflow soldering per J-STD-020. Its glass epoxy substrate and Cu foil construction withstand peak temperatures up to 260°C for ≤40 seconds. The datasheet confirms compatibility with surface-mount assembly, and the 0.8 mm × 1.25 mm footprint aligns with common 0402-class stencil apertures - facilitating reliable placement and solder joint formation in automated HZU7.5B1JTRF-E production lines.
HZU7.5B1JTRF-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:
- -
HZU7.5B1JTRF-E FAQ
1.How can I place an order for HZU7.5B1JTRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU7.5B1JTRF-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 HZU7.5B1JTRF-E reliable?
The price and inventory of HZU7.5B1JTRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU7.5B1JTRF-E is usually 5 days.
3.What payment methods are accepted for HZU7.5B1JTRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU7.5B1JTRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU7.5B1JTRF-E?
HZU7.5B1JTRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU7.5B1JTRF-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 HZU7.5B1JTRF-E?
For technical support, including HZU7.5B1JTRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU7.5B1JTRF-E requirements.
6.How does Aetrix verify that HZU7.5B1JTRF-E is sourced from the original manufacturer or authorized distributors?
All HZU7.5B1JTRF-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 HZU7.5B1JTRF-E meets industry standards.
7.What is the process for return or replacement of HZU7.5B1JTRF-E?
All HZU7.5B1JTRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZU7.5B1JTRF-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 HZU7.5B1JTRF-E part is unused and in its original packaging.
Return procedure for HZU7.5B1JTRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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