My Inquiry
My Account
Renesas HZU7.5B2TRF-E-Q
- Part No.:
- HZU7.5B2TRF-E-Q
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU7.5B2TRF-E-Q.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:117,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HZU7.5B2TRF-E-Q from Renesas Electronics is a silicon epitaxial planar Zener diode optimized for hard-knee, low-noise voltage reference applications, with nominal Zener voltage 7.5 V, dynamic resistance 400 Ω at IZT = 5 mA, temperature coefficient –0.025 %/°C, and ultra-small URP (SC-76A) surface-mount package.
For engineers reviewing the HZU7.5B2TRF-E-Q datasheet, HZU7.5B2TRF-E-Q pinout, HZU7.5B2TRF-E-Q application, or HZU7.5B2TRF-E-Q equivalent, this part delivers stable low-noise reference performance in space-constrained analog circuits requiring tight VZ tolerance, low ∆VZ, and minimal thermal drift across industrial temperature ranges.
Technical Context
The HZU7.5B2TRF-E-Q belongs to the HZU-LL series, engineered for semi-logarithmic linear VZ–IZ characteristics over 1 nA to 1 mA, enabling precise low-current regulation. Its hard-knee Zener behavior minimizes knee voltage uncertainty compared to standard Zeners.
It achieves ~1/3 to 1/10 lower noise voltage and ~1/2 lower temperature coefficient versus legacy HZU-series diodes. The device operates within 150 mW power dissipation limit and supports junction temperatures up to 150°C, with storage range from –55°C to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 7.5 V ±5% at IZ = 5 mA - defines stable reference point for precision biasing and feedback networks |
| Dynamic Resistance ZZT | 400 Ω typ. at IZT = 5 mA - ensures minimal output impedance shift under load variation |
| Reverse Current IR | ≤100 nA at VR = 5.0 V - guarantees high off-state blocking for low-leakage reference designs |
| Temperature Coefficient γZ | –0.025 %/°C - enables <±1.5 mV/°C drift in 7.5 V reference over –40°C to +85°C |
| Power Dissipation Pd | 150 mW max at Ta = 25°C - constrains usable current to ≤20 mA at 7.5 V without derating |
| Junction Temperature Tj | 150°C max - allows operation in thermally demanding PCB environments with adequate copper thermal relief |
Pinout & Package
Package: Ultra Small Resin Package (URP), JEITA code SC-76A, Renesas code PTSP0002ZA-A, mass 0.004 g, dimensions 1.25 mm × 0.80 mm × 0.45 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; reverse-biased terminal where Zener breakdown occurs |
| 2 | Anode | Ground or low-potential return path; polarity marking aligns with cathode band on top surface |
Key Features
| Feature | Design Value |
|---|---|
| Hard-knee Zener characteristic | Enables sharp, predictable breakdown onset at 7.5 V with minimal knee uncertainty (<0.1 V) |
| Low-noise voltage generation | Reduces RMS noise by 70–90% vs. standard HZU series - critical for high-SNR sensor front-ends |
| Semi-logarithmic VZ–IZ linearity | Maintains stable 7.5 V reference across 1 nA–1 mA operating range - supports micro-power and high-current modes |
| Ultra-low temperature coefficient | –0.025 %/°C minimizes thermal drift to <±1.2 mV over 0–70°C ambient - suitable for uncalibrated instrumentation |
Applications
| High-Precision ADC Reference | Low-Noise Sensor Biasing |
|---|---|
Use Scenario: Providing stable 7.5 V reference for 16-bit SAR ADCs in portable data loggers. IC Role / Device Role / Timing Role: Voltage reference source establishing full-scale input range and LSB accuracy. Use Value: Low ∆VZ (≤0.15 V from 0.05 mA to 5 mA) and hard-knee behavior ensure <±0.5 LSB integral nonlinearity error. | Use Scenario: Biasing photodiode transimpedance amplifiers in optical smoke detectors. IC Role / Device Role / Timing Role: Low-noise DC bias supply for active sensor elements. Use Value: 70–90% lower noise voltage vs. standard Zeners reduces baseline fluctuation, improving detection SNR by ≥12 dB. |
| Industrial Current Loop Transmitters | Microcontroller Reset Supervision |
Use Scenario: Generating 7.5 V rail for 4–20 mA loop-powered transmitter ICs in hazardous-area field devices. IC Role / Device Role / Timing Role: Primary voltage reference for DAC and op-amp circuitry regulating loop current. Use Value: 150°C max junction temperature and –55°C to +150°C storage rating support operation in extended-temperature enclosures. | Use Scenario: Supplying accurate reset threshold for 3.3 V microcontrollers with external reset supervisor ICs. IC Role / Device Role / Timing Role: Precision voltage divider element setting reset trip point. Use Value: Semi-logarithmic linearity ensures consistent 7.5 V output across wide load current swings (1 µA–5 mA), preventing false resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMBZ5236B-7-F | Zener voltage 7.5 V ±5%, but higher dynamic resistance (600 Ω typ.), higher tempco (–0.08 %/°C), and no hard-knee optimization | Acceptable for general-purpose regulation but unsuitable for low-noise or micro-power reference use | Select only if cost sensitivity outweighs noise/thermal stability requirements |
| BZX84-C7V5 | 7.5 V ±5%, 600 Ω ZZT, –0.075 %/°C tempco, SOT-23 package (larger footprint than URP) | Limited to moderate-precision applications; lacks semi-logarithmic linearity and low-noise design | Prefer when existing SOT-23 layout prohibits URP rework and performance margin is sufficient |
Compared with MMBZ5236B-7-F and BZX84-C7V5, the HZU7.5B2TRF-E-Q delivers superior low-noise operation, tighter thermal stability, and hard-knee predictability-enabling higher-accuracy references in miniaturized industrial and sensor systems where URP's 1.25 mm × 0.80 mm footprint is critical.
Availability
HZU7.5B2TRF-E-Q is available at Aetrix Electronics and suitable for high-precision ADC reference, low-noise sensor biasing, and industrial current loop transmitters requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for HZU7.5B2TRF-E-Q 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 designed specifically for low-noise, hard-knee Zener reference applications in space-constrained analog signal chains-targeting instrumentation, sensor interfaces, and precision power management where traditional Zeners exhibit excessive drift or noise.
FAQ
What is the Zener voltage tolerance of the HZU7.5B2TRF-E-Q?
The HZU7.5B2TRF-E-Q has a Zener voltage of 7.5 V with ±5% tolerance at IZ = 5 mA, confirmed per Renesas Electrical Characteristics table. This tolerance directly defines its accuracy as a reference source in analog circuits, and the hard-knee behavior ensures minimal deviation across operating current variations. The HZU7.5B2TRF-E-Q maintains this specification under standard test conditions (Ta = 25°C) and is validated across production lots.
Does the HZU7.5B2TRF-E-Q support low-current operation down to nanoamp levels?
Yes, the HZU7.5B2TRF-E-Q exhibits semi-logarithmic linear VZ–IZ characteristics from IZ = 1 nA to 1 mA, enabling stable 7.5 V reference behavior even at ultra-low bias currents. This capability makes the HZU7.5B2TRF-E-Q suitable for battery-powered sensor nodes and energy-harvesting systems where quiescent current must remain below 100 nA while preserving reference integrity.
What is the maximum power dissipation for the HZU7.5B2TRF-E-Q at 70°C ambient?
Per Renesas Absolute Maximum Ratings and Fig.3 (Power Dissipation vs. Ambient Temperature), the HZU7.5B2TRF-E-Q is rated for 150 mW at Ta = 25°C, with linear derating to approximately 115 mW at Ta = 70°C. This corresponds to a maximum continuous Zener current of ~15.3 mA at 7.5 V, assuming no additional PCB thermal relief beyond standard JEDEC 2-layer test board conditions.
Is the HZU7.5B2TRF-E-Q RoHS compliant and lead-free?
Yes, the HZU7.5B2TRF-E-Q is RoHS compliant and lead-free, consistent with Renesas Electronics' environmental policy and the "E-Q" suffix designation in the part number, which indicates lead-free, halogen-free, and RoHS-compliant packaging per EU Directive 2011/65/EU. The URP package uses matte tin termination and complies with J-STD-020 moisture sensitivity level 1.
How does the temperature coefficient of the HZU7.5B2TRF-E-Q compare to standard 7.5 V Zeners?
The HZU7.5B2TRF-E-Q has a temperature coefficient of –0.025 %/°C, approximately half that of standard 7.5 V Zeners like the BZX84-C7V5 (–0.075 %/°C) or MMBZ5236B (–0.08 %/°C). This translates to <±1.2 mV/°C drift in the HZU7.5B2TRF-E-Q versus >±2.8 mV/°C for alternatives - a key differentiator for uncalibrated industrial references operating across –40°C to +85°C.
HZU7.5B2TRF-E-Q 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:
- -
HZU7.5B2TRF-E-Q FAQ
1.How can I place an order for HZU7.5B2TRF-E-Q through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU7.5B2TRF-E-Q 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 HZU7.5B2TRF-E-Q reliable?
The price and inventory of HZU7.5B2TRF-E-Q are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU7.5B2TRF-E-Q is usually 5 days.
3.What payment methods are accepted for HZU7.5B2TRF-E-Q?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU7.5B2TRF-E-Q transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU7.5B2TRF-E-Q?
HZU7.5B2TRF-E-Q orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU7.5B2TRF-E-Q 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 HZU7.5B2TRF-E-Q?
For technical support, including HZU7.5B2TRF-E-Q datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU7.5B2TRF-E-Q requirements.
6.How does Aetrix verify that HZU7.5B2TRF-E-Q is sourced from the original manufacturer or authorized distributors?
All HZU7.5B2TRF-E-Q 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 HZU7.5B2TRF-E-Q meets industry standards.
7.What is the process for return or replacement of HZU7.5B2TRF-E-Q?
All HZU7.5B2TRF-E-Q units undergo pre-shipment inspection (PSI). If there is an issue with HZU7.5B2TRF-E-Q, 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 HZU7.5B2TRF-E-Q part is unused and in its original packaging.
Return procedure for HZU7.5B2TRF-E-Q:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZU7.5B2TRF-E-Q Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
