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Renesas HZ20BP-JTK-E
- Part No.:
- HZ20BP-JTK-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZ20BP-JTK-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
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Inventory:82,500
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Product details
Overview
HZ20BP-JTK-E from Renesas is a silicon planar Zener diode optimized for low-noise voltage regulation in precision analog circuits, with a nominal zener voltage of 20.2–21.1 V at 0.5 mA test current, 18.0 Ω dynamic impedance, 400 mW power dissipation, and DO-35 glass package. It serves as a stable reference in low-drift power supplies and sensor signal conditioning.
For engineers reviewing the HZ20BP-JTK-E datasheet, HZ20BP-JTK-E pinout, HZ20BP-JTK-E application, or HZ20BP-JTK-E equivalent, key selection criteria include zener voltage tolerance (±0.5 V), low noise performance (1/3–1/10 of standard HZ series), temperature coefficient (−0.02 to −0.04 %/°C near 20 V), and DO-35 mechanical compatibility for through-hole PCB layouts.
Technical Context
The HZ20BP-JTK-E employs a silicon planar junction structure to minimize flicker and thermal noise, achieving significantly lower noise than legacy HZ-series Zeners. Its zener voltage is specified at DC test conditions (IZ = 0.5 mA), with dynamic resistance measured at IZ = 1 mA and VR = 0.5 V.
Designed for stable DC reference generation, it operates within a junction temperature range of −55°C to +175°C and exhibits a negative temperature coefficient of approximately −0.03 %/°C at 20 V, enabling predictable drift compensation in temperature-sensitive designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 20.2–21.1 V at IZ = 0.5 mA - defines precise DC reference level for feedback loops |
| Dynamic Resistance (rd) | 18.0 Ω at IZ = 1 mA - ensures minimal output voltage variation under load transients |
| Power Dissipation (Pd) | 400 mW - supports continuous operation in compact through-hole regulator stages |
| Reverse Leakage (IR) | ≤1 μA at VR = 0.5 V - maintains high impedance in off-state, reducing quiescent error |
| Temperature Coefficient (γZ) | ≈−0.03 %/°C - enables predictable, linear drift correction in compensated references |
| Junction Temperature (Tj) | −55°C to +175°C - allows deployment in industrial and automotive under-hood environments |
Pinout & Package
Package: DO-35 glass axial package (JEITA code GRZZ0002ZB-A), orange body color, 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) | Zener breakdown terminal | Connected to regulated output node; polarity must be observed to avoid forward conduction |
| 2 (Anode) | Reference ground terminal | Typically tied to system ground or bias return path; establishes reference potential |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise Zener structure | 1/3–1/10 noise vs. standard HZ series - critical for audio preamps and precision ADC references |
| Stable low-impedance regulation | 18.0 Ω dynamic resistance at 1 mA - minimizes ripple coupling into sensitive analog stages |
| Wide zener voltage range support | Part of HZ-L family spanning 5.2–38 V - enables single-supplier sourcing across multiple reference voltages |
| High-temperature reliability | 175°C max junction temperature - suitable for engine control units and industrial motor drives |
Applications
| Industrial Sensor Signal Conditioning | Precision Analog Power Supply Reference |
|---|---|
Use Scenario: Stabilizing excitation voltage for strain gauge bridges in factory-floor load cells. IC Role / Device Role / Timing Role: Zener diode providing low-drift, low-noise 20.2–21.1 V reference for bridge biasing. Use Value: Enables <±0.01% linearity over temperature due to predictable −0.03 %/°C drift and 18.0 Ω impedance. | Use Scenario: Generating stable feedback reference for adjustable linear regulators in lab-grade power supplies. IC Role / Device Role / Timing Role: Primary voltage reference element in TL431-based shunt regulator topologies. Use Value: Delivers 400 mW dissipation headroom and sub-μA leakage to maintain regulation accuracy under light-load conditions. |
| Automotive Engine Control Unit (ECU) Biasing | Medical Instrumentation Reference Stage |
Use Scenario: Supplying calibrated bias to oxygen sensor interface circuitry in exhaust manifolds. IC Role / Device Role / Timing Role: High-temp-stable Zener reference operating up to 175°C junction temperature. Use Value: Maintains ±0.5 V zener tolerance across −40°C to +150°C ambient via verified JEDEC DO-35 thermal profile. | Use Scenario: Establishing reference voltage for 24-bit delta-sigma ADC front-ends in portable ECG monitors. IC Role / Device Role / Timing Role: Low-noise voltage reference minimizing quantization uncertainty in biopotential acquisition. Use Value: Achieves 1/10 noise of standard Zeners, directly improving effective resolution by ≥1 LSB in low-frequency biosignal bands. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4742A | Zener voltage 12 V (fixed), 22 Ω rd, 1 W Pd, DO-41 package | Higher power but wider voltage tolerance (±5%), higher noise, unsuitable for 20 V precision use | Select only if 12 V reference and higher dissipation are required; not a direct substitute for HZ20BP-JTK-E's 20.2–21.1 V range |
| BZX85C20 | Zener voltage 20 V ±5%, 50 Ω rd, 1.3 W Pd, DO-41 package | Loose tolerance and higher impedance degrade reference stability; no low-noise specification | Acceptable only in non-critical voltage clamp roles; avoid where low drift or low noise is required |
Compared with 1N4742A and BZX85C20, the HZ20BP-JTK-E delivers tighter voltage tolerance (±0.5 V), lower dynamic impedance (18.0 Ω), and documented low-noise performance-making it uniquely suited for precision analog reference applications where stability and spectral purity are design-critical.
Availability
HZ20BP-JTK-E is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, precision analog power supply reference, and automotive ECU biasing requiring stable component supply, long-term manufacturability, and traceable sourcing.
Supply support for HZ20BP-JTK-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 specializing in microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The HZ-L Series Zener diodes were developed specifically for low-noise, high-stability voltage reference applications in precision analog systems-emphasizing reduced flicker noise, tight voltage tolerance, and robust thermal performance.
FAQ
What is the exact zener voltage range for HZ20BP-JTK-E?
The HZ20BP-JTK-E has a guaranteed zener voltage range of 20.2 V to 21.1 V when tested at IZ = 0.5 mA, per Renesas datasheet REJ03G0182-0300 Rev.3.00. This 0.9 V span reflects tight process control for precision reference use, and the device is part of the HZ20-3L variant group within the HZ-L family.
Is HZ20BP-JTK-E compatible with standard DO-35 footprint layouts?
Yes, HZ20BP-JTK-E uses the JEITA-standard DO-35 package (Renesas code GRZZ0002ZB-A) with 26.0 mm body length, 2.0 mm diameter, and 4.2 mm lead spacing. Its mechanical dimensions match industry-standard DO-35 footprints, enabling drop-in replacement in existing through-hole PCB designs without layout modification.
Does HZ20BP-JTK-E specify noise performance in the datasheet?
Yes-the HZ-L Series datasheet explicitly states that its noise level is "approximately 1/3–1/10 lower than the HZ series" and identifies this as a core feature. While absolute µV/√Hz values are not tabulated, the comparative noise reduction is validated across the full HZ-L family, including HZ20BP-JTK-E, for low-frequency analog reference applications.
What is the maximum reverse current specification for HZ20BP-JTK-E?
The HZ20BP-JTK-E is rated for ≤1 μA reverse leakage current at VR = 0.5 V, per the Electrical Characteristics table on page 3 of REJ03G0182-0300. This low leakage supports high-impedance reference nodes and minimizes error in precision bias networks where input currents must remain below nanoampere levels.
Can HZ20BP-JTK-E operate reliably at elevated temperatures?
Yes-HZ20BP-JTK-E is qualified for junction temperatures from −55°C to +175°C and features a published temperature coefficient of ≈−0.03 %/°C near 20 V. Its DO-35 glass package and silicon planar construction ensure stable operation in under-hood automotive and industrial environments where ambient temperatures exceed 100°C.
HZ20BP-JTK-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:
- -
HZ20BP-JTK-E FAQ
1.How can I place an order for HZ20BP-JTK-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZ20BP-JTK-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 HZ20BP-JTK-E reliable?
The price and inventory of HZ20BP-JTK-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZ20BP-JTK-E is usually 5 days.
3.What payment methods are accepted for HZ20BP-JTK-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZ20BP-JTK-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZ20BP-JTK-E?
HZ20BP-JTK-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZ20BP-JTK-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 HZ20BP-JTK-E?
For technical support, including HZ20BP-JTK-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZ20BP-JTK-E requirements.
6.How does Aetrix verify that HZ20BP-JTK-E is sourced from the original manufacturer or authorized distributors?
All HZ20BP-JTK-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 HZ20BP-JTK-E meets industry standards.
7.What is the process for return or replacement of HZ20BP-JTK-E?
All HZ20BP-JTK-E units undergo pre-shipment inspection (PSI). If there is an issue with HZ20BP-JTK-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 HZ20BP-JTK-E part is unused and in its original packaging.
Return procedure for HZ20BP-JTK-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZ20BP-JTK-E Tags
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