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Renesas HZ22BPTN-E
- Part No.:
- HZ22BPTN-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ22BPTN-E.pdf
- Description:
- DIODE ZENER
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Inventory:40,000
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Product details
Overview
HZ22BPTN-E from Renesas is a silicon planar Zener diode optimized for low-noise voltage reference and stabilization in precision analog circuits, featuring a nominal zener voltage of 22.6 V (typ.), dynamic resistance of 100 Ω at 0.5 mA, maximum power dissipation of 400 mW, and junction temperature rating up to 175°C - deployed in high-stability power supplies and sensor biasing networks.
For engineers reviewing the HZ22BPTN-E datasheet, HZ22BPTN-E pinout, HZ22BPTN-E application, or HZ22BPTN-E equivalent, key selection criteria include its low-noise performance (1/3–1/10 of standard HZ series), tight zener voltage tolerance (21.6–22.6 V), DO-35 package compatibility, and thermal stability across −55°C to +175°C storage range.
Technical Context
This device operates as a two-terminal voltage reference using controlled avalanche breakdown in a planar-diffused silicon junction. Its low dynamic impedance (100 Ω) and low leakage current (<1 μA at VR = 18.8 V) ensure minimal output variation under load and temperature shifts.
The HZ22BPTN-E exhibits a zener voltage temperature coefficient of approximately +0.04 %/°C (≈ +9 mV/°C) near 22 V, confirmed by Figure 2 in REJ03G0182-0300, and maintains stable regulation down to 0.5 mA test current - enabling use in low-quiescent-current reference designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 21.6 V min / 22.6 V max at IZ = 0.5 mA - defines regulated output range for precision biasing |
| Dynamic Resistance (rd) | 100 Ω max at IZ = 0.5 mA - ensures low output impedance and minimal load-induced voltage drift |
| Power Dissipation (Pd) | 400 mW max at Ta = 25°C - sets thermal derating limit for PCB layout and heatsinking |
| Reverse Current (IR) | 1 μA max at VR = 18.8 V - guarantees low standby leakage in battery-powered references |
| Junction Temperature (Tj) | 175°C max - supports operation in high-ambient industrial environments without thermal shutdown |
| Storage Temperature | −55°C to +175°C - enables use in automotive under-hood and aerospace applications |
Pinout & Package
Package: DO-35 (JEITA code GRZZ0002ZB-A, Renesas SC-40 variant), glass axial leaded, orange body with navy-blue cathode band. Mass: 0.13 g. Dimensions: φD = 2.0 mm, L = 26.0 mm, E = 4.2 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | High-side reference node | Connected to regulated positive rail; polarity must be observed to avoid reverse conduction failure |
| 2 (Anode) | Reference ground return | Biased to circuit common; forms low-impedance path for zener current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| Noise level | Approximately 1/3–1/10 lower than standard HZ-series diodes - reduces RMS noise in sensitive ADC references |
| Zener impedance | 100 Ω max at 0.5 mA - improves line/load regulation in low-current feedback loops |
| Voltage tolerance | ±0.5 V over 21.6–22.6 V range - enables tighter system-level voltage margining |
| Thermal coefficient | +0.04 %/°C (≈ +9 mV/°C) - predictable drift behavior simplifies temperature compensation |
Applications
| High-Precision ADC Reference | Low-Power Sensor Biasing |
|---|---|
Use Scenario: Providing stable 22.6 V reference for 24-bit delta-sigma ADCs in industrial data acquisition systems. IC Role / Device Role / Timing Role: Two-terminal shunt voltage reference establishing precise input full-scale range. Use Value: Low dynamic resistance (100 Ω) and low noise suppress quantization error and improve effective number of bits (ENOB). | Use Scenario: Biasing photodiode or RTD front-end amplifiers in portable environmental monitors. IC Role / Device Role / Timing Role: Low-leakage (≤1 μA) voltage source enabling nanoampere-level signal conditioning. Use Value: Ultra-low reverse current prevents loading of high-impedance transducer outputs and preserves measurement accuracy. |
| Stabilized Power Supply Feedback | Overvoltage Protection Clamp |
Use Scenario: Setting feedback threshold in isolated flyback converters requiring ±1% output regulation. IC Role / Device Role / Timing Role: Precision zener element in optocoupler-coupled secondary-side regulation loop. Use Value: Tight VZ tolerance (21.6–22.6 V) and low tempco enable consistent cross-regulation across line/load variations. | Use Scenario: Clamping transient surges on 24 V industrial control bus lines. IC Role / Device Role / Timing Role: Fast-response shunt protector absorbing energy above 22.6 V while limiting peak voltage. Use Value: 400 mW power rating and robust junction temperature (175°C) allow brief surge handling without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5255B (ON Semiconductor) | Zener voltage 22 V ±5%, rd = 35 Ω typical, Pd = 500 mW, DO-35 package | Higher power rating but wider VZ tolerance and no documented low-noise optimization | Select when higher surge power handling is prioritized over noise-sensitive referencing |
| BZX85C22 (Vishay) | Zener voltage 22 V ±5%, rd = 50 Ω typical, Pd = 1.3 W, DO-41 package | Larger DO-41 footprint, higher power, but lacks HZ-L series' verified low-noise specification | Choose for cost-sensitive, non-critical reference roles where board space allows larger package |
Compared with 1N5255B and BZX85C22, the HZ22BPTN-E delivers superior noise performance and tighter voltage control at the expense of slightly higher dynamic impedance - making it optimal for metrology-grade references rather than general-purpose clamping.
Availability
HZ22BPTN-E is available at Aetrix Electronics and suitable for high-reliability power supply design, precision analog instrumentation, and industrial sensor interface applications requiring stable component supply and long-term obsolescence management.
Supply support for HZ22BPTN-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 mixed-signal solutions for automotive, industrial, and infrastructure markets.
The HZ-L Series was designed specifically for low-noise, high-stability voltage reference applications in precision analog systems - addressing demand for improved signal integrity in data converters, sensor interfaces, and regulated power rails.
FAQ
What is the exact zener voltage range specified for HZ22BPTN-E?
The HZ22BPTN-E has a guaranteed zener voltage range of 21.6 V minimum to 22.6 V maximum when tested at IZ = 0.5 mA and Ta = 25°C, per REJ03G0182-0300 Rev.3.00 page 3. This 1.0 V span reflects the "B2" variant within the HZ22-2L subgroup and is tighter than generic 5% tolerance Zeners.
Does HZ22BPTN-E have a documented low-noise specification?
Yes - the HZ-L Series datasheet explicitly states that diode noise level is "approximately 1/3–1/10 lower than the HZ series", and the HZ22BPTN-E inherits this low-noise characteristic as a member of the HZ-L family. No absolute dB or nV/√Hz values are published, but comparative noise reduction is confirmed in the Features section on page 1.
What package type and dimensions does HZ22BPTN-E use?
HZ22BPTN-E uses the DO-35 package (JEITA code GRZZ0002ZB-A, Renesas SC-40 variant), with an orange glass body, navy-blue cathode band, diameter φD = 2.0 mm, length L = 26.0 mm, and lead spacing E = 4.2 mm. It is a through-hole axial-leaded device weighing 0.13 g.
Is HZ22BPTN-E suitable for surface-mount assembly?
No - HZ22BPTN-E is a DO-35 axial-leaded through-hole device and is not compatible with SMT reflow or wave soldering processes. It requires manual or automated through-hole insertion and soldering. For SMT alternatives, Renesas offers other families (e.g., HZ22BPTN-E has no SMD variant in the HZ-L Series).
What is the maximum allowable reverse current for HZ22BPTN-E before regulation begins?
The maximum reverse current (IR) for HZ22BPTN-E is 1 μA at VR = 18.8 V, per Electrical Characteristics table on page 2 of REJ03G0182-0300. This low leakage ensures minimal parasitic loading in high-impedance reference nodes and supports ultra-low-power operation.
HZ22BPTN-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:
- -
HZ22BPTN-E FAQ
1.How can I place an order for HZ22BPTN-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ22BPTN-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 HZ22BPTN-E reliable?
The price and inventory of HZ22BPTN-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ22BPTN-E is usually 5 days.
3.What payment methods are accepted for HZ22BPTN-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ22BPTN-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ22BPTN-E?
HZ22BPTN-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ22BPTN-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 HZ22BPTN-E?
For technical support, including HZ22BPTN-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ22BPTN-E requirements.
6.How does Aetrix verify that HZ22BPTN-E is sourced from the original manufacturer or authorized distributors?
All HZ22BPTN-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 HZ22BPTN-E meets industry standards.
7.What is the process for return or replacement of HZ22BPTN-E?
All HZ22BPTN-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ22BPTN-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 HZ22BPTN-E part is unused and in its original packaging.
Return procedure for HZ22BPTN-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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