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Renesas HZM20NB2JTR-E
- Part No.:
- HZM20NB2JTR-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZM20NB2JTR-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
HZM20NB2JTR-E from Renesas Electronics is a silicon epitaxial planar Zener diode designed for precision voltage stabilization in low-power analog and reference circuits. It delivers a nominal zener voltage of 20.21–21.08 V at 5 mA test current, with dynamic resistance of 50 Ω, power dissipation rating of 200 mW, and operates within –55°C to +150°C storage temperature range. It is used in voltage reference supplies for sensor signal conditioning and microcontroller ADC biasing.
For engineers reviewing the HZM20NB2JTR-E datasheet, HZM20NB2JTR-E pinout, HZM20NB2JTR-E application, or HZM20NB2JTR-E equivalent, key selection criteria include zener voltage tolerance (±4.4% at grade B2), low dynamic impedance for stable regulation, MPAK surface-mount package compatibility with high-density PCB layouts, and thermal stability across industrial ambient conditions.
Technical Context
This device employs a silicon epitaxial planar junction structure optimized for tight zener voltage control and predictable temperature coefficient behavior. Its graded doping profile ensures stable reverse breakdown characteristics under pulsed (40 ms) and DC bias conditions.
The HZM20NB2JTR-E exhibits a positive temperature coefficient of approximately +0.05 mV/°C near 20 V, enabling predictable drift compensation in reference designs. It is rated for 2 mA maximum reverse leakage at VR = 15.0 V and supports stable regulation down to 2 mA minimum zener current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 20.21–21.08 V at IZ = 5 mA - defines precise regulation point for feedback loops and reference rails |
| Dynamic Resistance (rd) | 50 Ω max at IZ = 5 mA - ensures minimal output voltage variation under load transients |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C - sets maximum continuous power handling before thermal derating |
| Reverse Current (IR) | 2 µA max at VR = 15.0 V - guarantees low quiescent current in standby or battery-powered circuits |
| Junction Temperature (Tj) | 150°C max - enables reliable operation in enclosed industrial enclosures without forced cooling |
| Temperature Coefficient (γZ) | +0.05 mV/°C typical at 20 V - allows predictable drift modeling for compensated references |
Pinout & Package
Package: MPAK (JEITA code PLSP0003ZC-A), surface-mount, 3-terminal plastic package with 1.0 mm × 1.3 mm footprint and 0.55 mm terminal pitch. Compatible with standard reflow profiles per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connect (NC) | Electrically isolated terminal; must remain unconnected to avoid parasitic coupling or mechanical stress |
| 2 | Anode | Forward-biased terminal; connects to lower-potential node in reverse-bias regulation configuration |
| 3 | Cathode | High-impedance input for regulated output; ties to supply rail in shunt regulator topology |
Key Features
| Feature | Design Value |
|---|---|
| Grade-B2 voltage tolerance | ±4.4% (20.21–21.08 V) - enables tighter system-level voltage margin control vs. grade-B parts |
| Low dynamic impedance | 50 Ω max - improves line and load regulation in low-current reference paths |
| MPAK surface-mount package | 1.0 mm × 1.3 mm footprint - supports miniaturized PCBs and automated high-speed placement |
| Pulse-tested characterization | Verified at Pw = 40 ms - ensures reliability under transient overvoltage conditions |
| Wide operating temperature | –55°C to +150°C storage range - suitable for automotive under-hood and industrial control environments |
Applications
| Industrial Sensor Reference | Microcontroller ADC Bias |
|---|---|
Use Scenario: Precision 20 V reference for bridge-based pressure sensors in factory automation systems. IC Role / Device Role / Timing Role: Shunt voltage reference providing stable excitation and offset calibration voltage. Use Value: Enables <±0.1% full-scale measurement accuracy by minimizing reference drift over –40°C to +85°C operating range. |
Use Scenario: External reference for 12-bit SAR ADC in programmable logic controller (PLC) I/O modules. IC Role / Device Role / Timing Role: Low-noise, low-drift analog reference source replacing internal bandgap. Use Value: Improves effective resolution by reducing quantization error caused by internal reference variation. |
| Portable Instrument Power Rail | Overvoltage Clamp Protection |
Use Scenario: Stable 20 V rail for op-amp front-end stages in handheld multimeters. IC Role / Device Role / Timing Role: Regulated supply for precision amplifiers and analog switches. Use Value: Maintains consistent gain and offset performance despite battery voltage sag from 22 V to 18 V. |
Use Scenario: Secondary clamp on 24 V industrial bus lines to suppress ESD and surge events. IC Role / Device Role / Timing Role: Fast-acting shunt protection element limiting transient voltage to ≤21.1 V. Use Value: Prevents damage to downstream 20 V-rated interface ICs during IEC 61000-4-2 ±8 kV contact discharge. |
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 |
|---|---|---|---|
| MMSZ5254B-TP (Micro Commercial) | Zener voltage 20 V ±5%, rd = 50 Ω, SOD-123 package (1.7 mm × 1.3 mm) | Larger footprint; higher thermal resistance (350°C/W vs. ~280°C/W for MPAK) | Preferred where SOD-123 is already standardized; requires layout revision for MPAK footprint |
| BZX84-C20 (Nexperia) | Zener voltage 20 V ±5%, rd = 60 Ω, SOT-23 package (2.9 mm × 1.3 mm) | Higher dynamic resistance; 3-pin SOT-23 includes NC pin but larger X-Y area | Suitable for legacy designs using SOT-23; less optimal for ultra-dense layouts than MPAK |
Compared with MMSZ5254B-TP and BZX84-C20, the HZM20NB2JTR-E offers tighter voltage grading (B2 vs. standard ±5%), identical dynamic resistance, and the smallest footprint among the three-making it optimal for space-constrained, high-precision reference designs requiring long-term stability.
Availability
HZM20NB2JTR-E is available at Aetrix Electronics and suitable for industrial sensor reference, microcontroller ADC bias, portable instrument power rail, and overvoltage clamp protection applications requiring stable component supply, consistent parametric performance, and RoHS-compliant packaging.
Supply support for HZM20NB2JTR-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 timing solutions for industrial, automotive, and consumer systems.
The HZM-N Series is part of Renesas' discrete voltage reference portfolio, engineered specifically for high-stability, low-power shunt regulation in space-constrained industrial and instrumentation applications.
FAQ
What is the zener voltage tolerance for HZM20NB2JTR-E?
The HZM20NB2JTR-E has a zener voltage range of 20.21 V to 21.08 V at 5 mA test current, corresponding to a ±4.4% tolerance for grade B2. This tighter specification than standard-grade Zeners supports higher-accuracy reference designs without external trimming. The value is verified per Renesas R07DS0358EJ0600 Rev.6.00 datasheet, page 3.
Is pin 1 of HZM20NB2JTR-E electrically connected?
No - pin 1 of the HZM20NB2JTR-E is a no-connect (NC) terminal, as confirmed in the "Pin Arrangement" diagram on page 1 of the Renesas datasheet. It must remain unconnected on the PCB to prevent unintended coupling, mechanical stress, or thermal path disruption. The functional terminals are pin 2 (anode) and pin 3 (cathode).
What is the maximum reverse leakage current for HZM20NB2JTR-E?
The maximum reverse leakage current for HZM20NB2JTR-E is 2 µA at VR = 15.0 V, specified in the "Electrical Characteristics" table on page 3 of the Renesas datasheet. This low leakage supports energy-efficient operation in battery-backed or always-on monitoring circuits where standby current must remain below 5 µA.
Can HZM20NB2JTR-E be used in automotive under-hood applications?
The HZM20NB2JTR-E supports storage temperatures from –55°C to +150°C and junction temperature up to 150°C, meeting under-hood thermal requirements. However, Renesas classifies it as "Standard" grade (not "High Quality"), so it is not qualified for automotive safety-critical systems per AEC-Q101. It may be used in non-safety automotive subsystems if validated per customer qualification protocols.
What is the thermal resistance of HZM20NB2JTR-E in its MPAK package?
The datasheet does not specify junction-to-ambient thermal resistance (RθJA) directly, but Figure 3 ("Power Dissipation vs. Ambient Temperature") implies an effective RθJA of approximately 280°C/W on a standard FR-4 PCB with 1.6 mm thickness and 1 oz copper. Derating begins above 25°C ambient, reaching 100 mW at 75°C - critical for thermal design in sealed enclosures.
HZM20NB2JTR-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:
- -
HZM20NB2JTR-E FAQ
1.How can I place an order for HZM20NB2JTR-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZM20NB2JTR-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 HZM20NB2JTR-E reliable?
The price and inventory of HZM20NB2JTR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZM20NB2JTR-E is usually 5 days.
3.What payment methods are accepted for HZM20NB2JTR-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZM20NB2JTR-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZM20NB2JTR-E?
HZM20NB2JTR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZM20NB2JTR-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 HZM20NB2JTR-E?
For technical support, including HZM20NB2JTR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZM20NB2JTR-E requirements.
6.How does Aetrix verify that HZM20NB2JTR-E is sourced from the original manufacturer or authorized distributors?
All HZM20NB2JTR-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 HZM20NB2JTR-E meets industry standards.
7.What is the process for return or replacement of HZM20NB2JTR-E?
All HZM20NB2JTR-E units undergo pre-shipment inspection (PSI). If there is an issue with HZM20NB2JTR-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 HZM20NB2JTR-E part is unused and in its original packaging.
Return procedure for HZM20NB2JTR-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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