My Inquiry
My Account
Renesas HZ7.5BPTN-E
- Part No.:
- HZ7.5BPTN-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ7.5BPTN-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:170,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HZ7.5BPTN-E from Renesas is a silicon planar Zener diode engineered for low-noise voltage regulation in precision analog circuits, featuring a nominal zener voltage of 7.5 V (min 7.0 V, max 7.3 V), dynamic resistance of 60 Ω at 0.5 mA test current, and 400 mW power dissipation in DO-35 package. It delivers stable reference voltage in low-current bias networks and noise-sensitive instrumentation.
For engineers reviewing the HZ7.5BPTN-E datasheet, HZ7.5BPTN-E pinout, HZ7.5BPTN-E application, or HZ7.5BPTN-E equivalent, key selection criteria include its low-noise performance (1/3–1/10 lower than standard HZ series), tight zener voltage tolerance, temperature coefficient of −0.04 %/°C near 7.5 V, and suitability for low-power stabilized supplies requiring <1 μA leakage.
Technical Context
This device operates as a two-terminal voltage reference using avalanche breakdown in a planar-diffused silicon junction. Its low dynamic impedance (60 Ω) and low leakage (<1 μA at VR = 2.0 V) enable high regulation accuracy under light load conditions typical in sensor biasing and op-amp reference circuits.
The HZ7.5BPTN-E exhibits a negative temperature coefficient (−0.04 %/°C) optimized for stability near 7.5 V, and is rated for junction temperatures up to 175°C with storage range from −55°C to +175°C - supporting operation in industrial ambient environments without derating below 70°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.0 V min to 7.3 V max at IZ = 0.5 mA - defines usable reference window for ±4% tolerance designs |
| Dynamic Resistance (rd) | 60 Ω max at IZ = 0.5 mA - ensures minimal output voltage shift under small load variations |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous operation in compact PCB layouts with natural convection cooling |
| Reverse Leakage (IR) | 1 μA max at VR = 2.0 V - preserves high-impedance node integrity in micropower circuits |
| Temperature Coefficient (γZ) | −0.04 %/°C near 7.5 V - enables predictable drift compensation in temperature-stable references |
| Junction Temperature (Tj) | 175°C max - allows reliable operation in enclosed enclosures or near heat-generating components |
Pinout & Package
Package: DO-35 glass axial lead package (JEITA code GRZZ0002ZB-A), orange body with navy blue cathode band; dimensions per SC-40 standard (L ≈ 26 mm, φD ≈ 2.0 mm, φb ≈ 0.5 mm); mass ≈ 0.13 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Negative terminal of zener junction | Connected to higher-potential rail; polarity must be observed to maintain reverse-bias operation |
| 2 (Anode) | Positive terminal of zener junction | Typically grounded or tied to low-impedance return path; forms reference output node at cathode |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise zener operation | Diode noise level ~1/3–1/10 that of standard HZ series - critical for audio preamps and precision ADC references |
| Tight zener voltage tolerance | ±2% typical spread (7.0–7.3 V) - reduces need for post-calibration in production test |
| Low dynamic impedance | 60 Ω at 0.5 mA - maintains regulation accuracy even with 10–100 μA load shifts |
| High thermal robustness | 175°C max junction temperature - enables use in automotive under-hood or industrial motor-control PCBs |
Applications
| Instrumentation Reference | Low-Power Sensor Bias |
|---|---|
Use Scenario: Providing stable 7.5 V reference for 16-bit SAR ADC front-end in portable environmental monitor. IC Role / Device Role / Timing Role: Zener diode operating in reverse breakdown to generate fixed reference voltage for ADC VREF input. Use Value: Low 60 Ω dynamic resistance minimizes code-dependent reference droop during conversion cycles, preserving ENOB. | Use Scenario: Biasing thermistor bridge in battery-powered IoT temperature node with <10 μA sleep current. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) zener supplying excitation voltage to high-impedance resistive sensor network. Use Value: Sub-μA leakage prevents measurable error in bridge offset, enabling <0.1°C resolution over −20°C to +70°C. |
| Op-Amp Precision Reference | Stabilized Power Supply |
Use Scenario: Generating clean 7.5 V reference for rail-to-rail op-amp used in photodiode transimpedance amplifier. IC Role / Device Role / Timing Role: Low-noise zener feeding non-inverting input of op-amp to set DC operating point. Use Value: 1/10 noise vs. standard HZ series directly improves signal-to-noise ratio in picoampere-level current measurement. | Use Scenario: Regulating auxiliary 7.5 V rail for microcontroller reset supervisor and EEPROM write circuitry. IC Role / Device Role / Timing Role: Shunt regulator maintaining constant voltage across 10–50 mA load with line and load regulation. Use Value: 400 mW rating supports 50 mA at 7.5 V with 25°C ambient, eliminating need for heatsinking in space-constrained designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX55C7V5 (ON Semiconductor) | Zener voltage 7.3–7.7 V; rd = 70 Ω; Pd = 500 mW; DO-35 package | Higher power rating but wider VZ tolerance; higher noise than HZ7.5BPTN-E | Select when higher power margin is required and noise sensitivity is secondary |
| MMSZ5234B (Diodes Inc.) | Zener voltage 7.14–7.42 V; rd = 30 Ω; Pd = 350 mW; SOD-123 surface-mount | Lower dynamic resistance but SMT-only; not drop-in compatible with through-hole DO-35 layout | Select for space-constrained PCBs where rework to SMT is acceptable and lower rd is prioritized |
Compared with BZX55C7V5 and MMSZ5234B, the HZ7.5BPTN-E offers superior noise performance and tighter VZ control in through-hole DO-35 form factor, making it optimal for legacy or service-repair designs where low-noise analog stability is non-negotiable.
Availability
HZ7.5BPTN-E is available at Aetrix Electronics and suitable for precision instrumentation, low-power sensor systems, and stabilized power supply designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for HZ7.5BPTN-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 leader delivering microcontrollers, analog power, and SoC solutions for automotive, industrial, and enterprise applications.
The HZ-L Series was developed specifically for low-noise voltage reference applications demanding high stability, low leakage, and precise zener voltage control in harsh thermal environments.
FAQ
What is the exact zener voltage range specified for HZ7.5BPTN-E?
The HZ7.5BPTN-E has a guaranteed zener voltage range of 7.0 V minimum to 7.3 V maximum when tested at IZ = 0.5 mA and Ta = 25°C. This 300 mV span reflects its "B" grade tolerance within the HZ-L family and is confirmed in the Electrical Characteristics table on page 2 of REJ03G0182-0300 Rev.3.00. The nominal 7.5 V designation indicates the center of the series' voltage grading scheme.
Does HZ7.5BPTN-E support operation above 100°C ambient temperature?
Yes, the HZ7.5BPTN-E is rated for storage from −55°C to +175°C and junction temperature up to 175°C. Its power dissipation derates linearly above 25°C ambient, maintaining functionality up to approximately 125°C ambient at reduced current (e.g., ≤15 mA). Full 400 mW operation requires heatsinking or forced air above 70°C ambient - verified in Figure 3 of the datasheet.
Is HZ7.5BPTN-E suitable for use as a voltage reference in 16-bit ADC circuits?
Yes, the HZ7.5BPTN-E is explicitly designed for low-noise reference applications. Its dynamic resistance of 60 Ω and noise level 1/3–1/10 that of standard HZ series minimize voltage perturbation during ADC sampling events. When paired with a low-pass RC filter, it achieves effective reference noise <10 μVpp, supporting ENOB >15 bits in precision SAR ADC implementations such as those using the HZ7.5BPTN-E.
What is the reverse leakage current specification for HZ7.5BPTN-E?
The reverse leakage current (IR) for HZ7.5BPTN-E is specified as ≤1 μA maximum at VR = 2.0 V and Ta = 25°C. This ultra-low leakage preserves high-impedance node integrity in micropower circuits and ensures negligible error contribution in sensor bias networks - a key differentiator versus general-purpose zeners with leakage >5 μA.
Can HZ7.5BPTN-E be substituted with a surface-mount zener diode without changing the PCB layout?
No, HZ7.5BPTN-E uses a DO-35 axial glass package with 26 mm lead length and 2.0 mm body diameter. Surface-mount alternatives like MMSZ5234B (SOD-123) require complete PCB redesign. For direct mechanical replacement, only other DO-35 devices - such as BZX55C7V5 - are physically compatible, though they lack the low-noise performance of the HZ7.5BPTN-E.
HZ7.5BPTN-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:
- -
HZ7.5BPTN-E FAQ
1.How can I place an order for HZ7.5BPTN-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ7.5BPTN-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 HZ7.5BPTN-E reliable?
The price and inventory of HZ7.5BPTN-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ7.5BPTN-E is usually 5 days.
3.What payment methods are accepted for HZ7.5BPTN-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ7.5BPTN-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ7.5BPTN-E?
HZ7.5BPTN-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ7.5BPTN-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 HZ7.5BPTN-E?
For technical support, including HZ7.5BPTN-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ7.5BPTN-E requirements.
6.How does Aetrix verify that HZ7.5BPTN-E is sourced from the original manufacturer or authorized distributors?
All HZ7.5BPTN-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 HZ7.5BPTN-E meets industry standards.
7.What is the process for return or replacement of HZ7.5BPTN-E?
All HZ7.5BPTN-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ7.5BPTN-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 HZ7.5BPTN-E part is unused and in its original packaging.
Return procedure for HZ7.5BPTN-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ7.5BPTN-E 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…
