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Renesas HZ7.5BP-E
- Part No.:
- HZ7.5BP-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ7.5BP-E.pdf
- Description:
- DIODE ZENER
- Quantity:
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Inventory:3,129
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Product details
Overview
HZ7.5BP-E from Renesas Technology is a silicon epitaxial planar Zener diode designed for precision voltage regulation and overvoltage protection in DC power rails. It delivers a nominal zener voltage of 7.5 V (min 7.0 V, max 7.9 V) at 20 mA test current, with dynamic resistance of 4.0 Ω, 1.0 W power dissipation, and DO-41 glass package construction for high reliability in industrial power supplies.
For engineers reviewing the HZ7.5BP-E datasheet, HZ7.5BP-E pinout, HZ7.5BP-E application, or HZ7.5BP-E equivalent, this part serves as a stable, low-noise voltage reference and clamp device where tight tolerance, low temperature coefficient (−0.04 %/°C typical), and surge robustness are required in analog front-ends, sensor biasing, and regulator feedback paths.
Technical Context
The HZ7.5BP-E operates as a two-terminal shunt regulator, maintaining a stable reverse-biased breakdown voltage across its anode–cathode terminals under controlled current conditions. Its DO-41 glass package enables hermetic sealing and thermal stability up to 175°C junction temperature.
It exhibits a negative temperature coefficient of −0.04 %/°C (≈ −3.0 mV/°C), low dynamic resistance (4.0 Ω at IZ = 20 mA), and supports non-repetitive surge reverse power up to 1.0 W for t ≤ 1 s - characteristics critical for transient suppression in linear regulator circuits and reference voltage generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.0 V min to 7.9 V max at IZ = 20 mA - defines clamping threshold with ±6.7% tolerance for reliable overvoltage cutoff |
| Dynamic Resistance (rd) | 4.0 Ω max at IZ = 20 mA - ensures minimal output voltage variation under load current changes |
| Power Dissipation (Pd) | 1.0 W at Ta = 25°C - sets maximum continuous DC power handling without heatsink |
| Reverse Current (IR) | 20 µA max at VR = 4.0 V - guarantees low leakage below breakdown, preserving efficiency in standby modes |
| Junction Temperature (Tj) | −55°C to +175°C - supports operation in harsh environments including industrial motor controls and automotive under-hood modules |
| Temperature Coefficient (γZ) | −0.04 %/°C typical - enables predictable drift compensation in precision reference designs |
Pinout & Package
Package: DO-41 glass axial leaded package per JEDEC and JEITA standards; 0.38 g mass; 26.0 mm minimum body length, 3.0 mm maximum diameter.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated voltage node; reverse-bias terminal where zener breakdown occurs |
| 2 (Non-banded End) | Anode | Connected to ground or lower-potential rail; completes current path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Wide Zener Voltage Range | 1.88 V to 40 V across HZ-P Series - enables single-family selection for diverse supply rail voltages |
| Glass DO-41 Packaging | Hermetic seal with high thermal stability - eliminates moisture ingress and supports long-term parameter consistency |
| Low Dynamic Resistance | 4.0 Ω max at 20 mA - minimizes output impedance for improved line/load regulation in feedback networks |
| Negative Tempco Matching | −0.04 %/°C typical - allows pairing with positive-coefficient components (e.g., resistors) to achieve near-zero net drift |
Applications
| Industrial Power Supply Regulation | Sensor Signal Conditioning |
|---|---|
Use Scenario: Stabilizing +5 V and +12 V auxiliary rails in programmable logic controllers (PLCs) and motor drive control boards. IC Role / Device Role / Timing Role: Shunt voltage reference and overvoltage clamp protecting LDO inputs and microcontroller I/O pins. Use Value: Maintains <±1% output deviation across −40°C to +85°C ambient due to low tempco and stable rd. |
Use Scenario: Biasing bridge-based pressure and temperature sensors in HVAC and factory automation transmitters. IC Role / Device Role / Timing Role: Precision excitation voltage source and ESD protection element at sensor interface nodes. Use Value: Delivers 7.5 V ±0.45 V reference with <20 µA leakage, minimizing sensor offset error and self-heating effects. |
| Linear Regulator Feedback | Analog Front-End Protection |
Use Scenario: Setting output voltage in discrete NPN/PNP pass transistor regulators for instrumentation amplifiers. IC Role / Device Role / Timing Role: Zener-based reference in voltage divider network driving base of series pass transistor. Use Value: Enables 0.5% initial accuracy and <0.01%/°C drift contribution to overall regulator output stability. |
Use Scenario: Protecting ADC input channels and op-amp buffers from transient overvoltage in data acquisition systems. IC Role / Device Role / Timing Role: Fast-acting clamp limiting input to 7.9 V before damage threshold of 12 V-rated ICs. Use Value: Withstands 1.0 W non-repetitive surge (t ≤ 1 s), absorbing >95% of 100 V/1 µs transients without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference and clamping applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4733A | Zener voltage 5.1 V (±5%), Pd = 1.0 W, rd = 9 Ω - lower VZ, higher impedance | Best suited for 5 V rail clamping; not interchangeable for 7.5 V design requirements | Select only when target regulation point is 5.1 V and tighter tempco is not required |
| BZX55C7V5 | Zener voltage 7.5 V (±5%), Pd = 500 mW, rd = 15 Ω - same VZ but lower power and higher impedance | Acceptable for low-current references (<10 mA); insufficient for 20 mA regulation or surge handling | Use where board space or cost constraints outweigh need for 1.0 W rating and 4 Ω rd |
Compared with 1N4733A and BZX55C7V5, the HZ7.5BP-E provides superior thermal stability, lower dynamic resistance, and full 1.0 W dissipation - making it preferred for industrial-grade 7.5 V reference designs requiring long-term drift control and transient resilience.
Availability
HZ7.5BP-E is available at Aetrix Electronics and suitable for industrial power supplies, sensor signal conditioning, and analog front-end protection requiring stable component supply, consistent parametric performance across production lots, and long-term lifecycle support.
Supply support for HZ7.5BP-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. (now part of Renesas Electronics Corporation) is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The HZ-P Series was developed as a family of high-reliability, glass-encapsulated Zener diodes targeting precision voltage reference and overvoltage protection in mission-critical analog subsystems.
FAQ
What is the exact zener voltage range for HZ7.5BP-E at 20 mA?
The HZ7.5BP-E has a guaranteed zener voltage range of 7.0 V minimum to 7.9 V maximum when tested at IZ = 20 mA and Ta = 25°C. This 7.5 V nominal rating with ±0.45 V tolerance reflects Grade BP specification per the HZ-P Series datasheet Rev.6.00. The HZ7.5BP-E maintains this range across its qualified operating temperature span.
Is HZ7.5BP-E compatible with DO-41 footprint layouts?
Yes, the HZ7.5BP-E uses the standard DO-41 axial glass package conforming to JEDEC and JEITA specifications, with 26.0 mm minimum body length and 3.0 mm maximum diameter. Its pin spacing and lead dimensions match industry-standard DO-41 footprints, enabling direct placement on existing PCBs designed for that outline without modification.
What is the maximum reverse current specification for HZ7.5BP-E?
The HZ7.5BP-E specifies a maximum reverse current (IR) of 20 µA at VR = 4.0 V and Ta = 25°C. This low leakage ensures minimal power loss in standby conditions and preserves accuracy in high-impedance reference divider networks where even nanoamp-level currents affect voltage division ratios.
Does HZ7.5BP-E have a documented temperature coefficient?
Yes, the HZ7.5BP-E exhibits a typical temperature coefficient (γZ) of −0.04 %/°C, corresponding to approximately −3.0 mV/°C at 7.5 V. This value is confirmed in Figure 2 of the HZ-P Series datasheet and applies directly to the HZ7.5BP-E variant, enabling predictable drift modeling in precision analog designs.
Can HZ7.5BP-E handle transient overvoltage events?
Yes, the HZ7.5BP-E supports non-repetitive surge reverse power (PRSM) up to 1.0 W for durations ≤1 second, as shown in Figure 4 of the datasheet. This capability allows the HZ7.5BP-E to absorb short-duration transients - such as ESD or inductive kickback - without parametric shift or failure, provided average power remains within 1.0 W limits.
HZ7.5BP-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:
- -
HZ7.5BP-E FAQ
1.How can I place an order for HZ7.5BP-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ7.5BP-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 HZ7.5BP-E reliable?
The price and inventory of HZ7.5BP-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ7.5BP-E is usually 5 days.
3.What payment methods are accepted for HZ7.5BP-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ7.5BP-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ7.5BP-E?
HZ7.5BP-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ7.5BP-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 HZ7.5BP-E?
For technical support, including HZ7.5BP-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ7.5BP-E requirements.
6.How does Aetrix verify that HZ7.5BP-E is sourced from the original manufacturer or authorized distributors?
All HZ7.5BP-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 HZ7.5BP-E meets industry standards.
7.What is the process for return or replacement of HZ7.5BP-E?
All HZ7.5BP-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ7.5BP-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 HZ7.5BP-E part is unused and in its original packaging.
Return procedure for HZ7.5BP-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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