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Renesas HZU7.5B1TRF-E
- Part No.:
- HZU7.5B1TRF-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZU7.5B1TRF-E.pdf
- Description:
- DIODE ZENER
- Quantity:
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- Shipping:
Inventory:25,571
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Product details
Overview
HZU7.5B1TRF-E from Renesas Electronics is a silicon planar Zener diode designed for voltage stabilization in low-power analog and digital circuits, featuring a nominal Zener voltage of 7.76 V to 8.10 V at 5 mA test current, 30 Ω dynamic resistance, and 200 mW power dissipation in an ultra-small URP surface-mount package - commonly used in power supply reference, overvoltage protection, and precision biasing applications.
For engineers reviewing the HZU7.5B1TRF-E datasheet, HZU7.5B1TRF-E pinout, HZU7.5B1TRF-E application, or HZU7.5B1TRF-E equivalent, key selection considerations include Zener voltage tolerance (±2.2% at mid-grade B1), thermal coefficient behavior near 7.5 V, reverse leakage under 2 µA at 5.0 V, and compatibility with high-density PCB layouts requiring SC-76A footprint compliance.
Technical Context
This Zener diode operates as a two-terminal shunt voltage regulator, maintaining stable output voltage across varying load currents by conducting excess current to ground when input exceeds its breakdown threshold. Its planar junction construction ensures consistent breakdown characteristics and low noise performance suitable for sensitive analog references.
The device exhibits a positive temperature coefficient near +0.04 %/°C at 7.5 V (per Fig.2), enabling predictable drift compensation in temperature-stable references. It is rated for 150 °C maximum junction temperature and supports pulsed testing per 40 ms width, confirming robustness under transient overvoltage conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.76 V to 8.10 V at IZ = 5 mA - defines precise regulation point for feedback loops or reference rails. |
| Dynamic Resistance (rd) | 30 Ω max at IZ = 5 mA - determines regulation stiffness and output impedance in shunt configuration. |
| Power Dissipation (Pd) | 200 mW at Ta = 25 °C - sets maximum continuous DC or pulsed power handling without derating. |
| Reverse Current (IR) | ≤2 µA at VR = 5.0 V - ensures minimal standby leakage in battery-powered or high-impedance bias networks. |
| Junction Temperature (Tj) | −55 °C to +150 °C - enables operation in industrial and automotive under-hood environments with appropriate PCB thermal design. |
| Package | URP (SC-76A / JEITA PTSP0002ZA-A) - 1.55 mm × 0.80 mm × 0.45 mm footprint optimized for automated SMT assembly. |
Pinout & Package
Ultra-small Resin Package (URP) is a surface-mount, two-terminal device with cathode marked by a visible band on the top surface. The package conforms to SC-76A mechanical outline and JEITA code PTSP0002ZA-A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to regulated output node; must be held at higher potential than anode to enable Zener conduction. |
| 2 | Anode | Typically grounded or connected to lowest system potential; completes shunt path for excess current. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small URP package | 1.55 mm × 0.80 mm footprint enables placement in space-constrained sensor modules and portable electronics. |
| Grade B1 voltage tolerance | ±2.2% Zener voltage spread (7.76–8.10 V) supports tighter regulation than standard-grade Zeners in cost-sensitive designs. |
| Pulse-tested reliability | Validated with 40 ms pulse width per Fig.3 - confirms stability during short-duration transients like ESD or switching spikes. |
| Taped and reel packaging | TRF taping (3,000 pcs/reel) ensures compatibility with high-speed pick-and-place equipment and reduces handling damage. |
Applications
| Power Supply Reference | Overvoltage Clamp |
|---|---|
Use Scenario: Providing stable 7.5 V reference for ADC voltage dividers or op-amp biasing in microcontroller-based sensor nodes. IC Role / Device Role / Timing Role: Shunt voltage reference establishing accurate scaling for analog signal conditioning. Use Value: Enables ±0.5% measurement accuracy in 12-bit data acquisition systems operating from unregulated 9 V batteries. |
Use Scenario: Protecting I/O pins of MCU or logic ICs against accidental 12 V misconnection or inductive kickback. IC Role / Device Role / Timing Role: Passive clamping element diverting surge current away from sensitive inputs. Use Value: Limits pin voltage to ≤8.1 V while absorbing up to 200 mW transient energy without latch-up or permanent damage. |
| Bias Network Stabilizer | Temperature-Compensated Reference |
Use Scenario: Setting fixed base-emitter voltage for low-noise BJT amplifiers in audio front-ends. IC Role / Device Role / Timing Role: DC bias voltage source maintaining transistor Q-point under supply variation. Use Value: Reduces gain drift by 60% compared to resistor-divider biasing alone in 0–70 °C ambient range. |
Use Scenario: Paired with negative-TC component (e.g., forward-biased diode) to build zero-drift 7.5 V reference for precision instrumentation. IC Role / Device Role / Timing Role: Positive-temperature-coefficient voltage source (≈+0.04 %/°C) for TC matching. Use Value: Achieves <±10 ppm/°C net drift when combined with −2 mV/°C silicon diode in series configuration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage stabilization applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C7V5LT1G | 7.5 V nominal (6.9–8.2 V tolerance), SOT-23 package, 300 mW Pd, 30 Ω rd. | Larger 3-pin SOT-23 footprint; requires layout change; higher power rating allows higher current operation. | Select when board space permits larger package and >200 mW dissipation is needed. |
| MMSZ5235B-TP | 7.5 V nominal (7.14–7.88 V), SOD-123 package, 500 mW Pd, 30 Ω rd. | 0.003 g mass vs. HZU7.5B1TRF-E's 0.004 g; same Zener voltage grade but wider tolerance (±4.5%). | Choose for higher power margin and broader availability, accepting looser voltage spec. |
Compared with BZX84-C7V5LT1G and MMSZ5235B-TP, the HZU7.5B1TRF-E offers the smallest footprint (URP vs. SOT-23/SOD-123), tightest voltage tolerance (±2.2%), and optimized thermal profile for dense PCBs - making it preferred for miniaturized, high-accuracy analog subsystems where space and regulation precision are critical.
Availability
HZU7.5B1TRF-E is available at Aetrix Electronics and suitable for power supply reference, overvoltage clamp, and bias network stabilizer applications requiring stable component supply, consistent Zener voltage grading, and RoHS-compliant surface-mount packaging.
Supply support for HZU7.5B1TRF-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 manufacturer headquartered in Japan, specializing in microcontrollers, analog and power devices, and SoC solutions for industrial, automotive, and consumer markets.
The HZU Series belongs to Renesas' discrete Zener diode product line, engineered specifically for compact, high-reliability voltage stabilization in space-constrained and thermally demanding applications - emphasizing tight voltage grading, low dynamic resistance, and SC-76A compatibility.
FAQ
What is the Zener voltage range of the HZU7.5B1TRF-E?
The HZU7.5B1TRF-E has a guaranteed Zener voltage range of 7.76 V to 8.10 V when tested at 5 mA Zener current and 25 °C ambient temperature. This ±2.2% tolerance reflects Grade B1 specification per Renesas' HZU Series datasheet Rev.10.00, making it suitable for applications requiring tighter regulation than standard-grade Zeners.
Does the HZU7.5B1TRF-E support high-temperature operation?
Yes, the HZU7.5B1TRF-E is rated for junction temperatures from −55 °C to +150 °C and storage temperatures over the same range. Its silicon planar construction and URP package enable reliable operation in industrial control modules and automotive cabin electronics, provided PCB copper area and airflow meet thermal derating guidelines shown in Fig.3 of the datasheet.
What is the dynamic resistance of the HZU7.5B1TRF-E and why does it matter?
The HZU7.5B1TRF-E has a maximum dynamic resistance of 30 Ω at 5 mA Zener current. This value directly impacts regulation accuracy: lower rd means smaller output voltage variation under changing load current, which is essential for stable reference rails in precision ADCs or analog front-ends where even 10 mV shift degrades measurement fidelity.
Is the HZU7.5B1TRF-E compatible with lead-free reflow soldering processes?
Yes, the HZU7.5B1TRF-E is RoHS-compliant and qualified for standard lead-free reflow profiles, including peak temperatures up to 260 °C for 10 seconds. Its URP package uses matte tin plating and passes JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), eliminating pre-bake requirements for most production environments.
How is the cathode identified on the HZU7.5B1TRF-E package?
The cathode of the HZU7.5B1TRF-E is marked by a visible band or dot on the top surface of the URP package, aligned with Pin 1 as shown in the "Pin Arrangement" diagram on page 1 of the datasheet. During PCB layout, Pin 1 (cathode) must connect to the regulated node, while Pin 2 (anode) connects to ground or the lowest system potential.
HZU7.5B1TRF-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:
- -
HZU7.5B1TRF-E FAQ
1.How can I place an order for HZU7.5B1TRF-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZU7.5B1TRF-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 HZU7.5B1TRF-E reliable?
The price and inventory of HZU7.5B1TRF-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZU7.5B1TRF-E is usually 5 days.
3.What payment methods are accepted for HZU7.5B1TRF-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZU7.5B1TRF-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZU7.5B1TRF-E?
HZU7.5B1TRF-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZU7.5B1TRF-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 HZU7.5B1TRF-E?
For technical support, including HZU7.5B1TRF-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZU7.5B1TRF-E requirements.
6.How does Aetrix verify that HZU7.5B1TRF-E is sourced from the original manufacturer or authorized distributors?
All HZU7.5B1TRF-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 HZU7.5B1TRF-E meets industry standards.
7.What is the process for return or replacement of HZU7.5B1TRF-E?
All HZU7.5B1TRF-E units undergo pre-shipment inspection (PSI). If there is an issue with HZU7.5B1TRF-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 HZU7.5B1TRF-E part is unused and in its original packaging.
Return procedure for HZU7.5B1TRF-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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