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Renesas HZM24NB3TR-E
- Part No.:
- HZM24NB3TR-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZM24NB3TR-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:15,000
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Product details
Overview
HZM24NB3TR-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 24.54 V to 25.57 V at 5 mA, with dynamic resistance of 60 Ω, power dissipation up to 200 mW, and operates within a junction temperature range of –55°C to +150°C - suitable for industrial sensor signal conditioning and power supply feedback loops.
For engineers reviewing the HZM24NB3TR-E datasheet, HZM24NB3TR-E pinout, HZM24NB3TR-E application, or HZM24NB3TR-E equivalent, key selection considerations include its B3-grade voltage tolerance (±2.1% at 25°C), MPAK surface-mount package compatibility with high-density PCB layouts, thermal coefficient of +0.07 mV/°C near 24 V, and compliance with JEITA code PLSP0003ZC-A.
Technical Context
This Zener diode employs a silicon epitaxial planar structure optimized for stable reverse-breakdown behavior under DC and low-frequency transient conditions. Its electrical characteristics are specified at 25°C with 40 ms pulse testing to minimize self-heating effects during measurement.
The device exhibits a positive temperature coefficient (+0.07 mV/°C) in the 24 V range, enabling predictable drift compensation in voltage references. It is rated for 2 mA reverse current at VR = 19.0 V and supports operation across ambient temperatures from –55°C to +150°C with derated power dissipation per Fig.3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24.54 V to 25.57 V at IZ = 5 mA - defines tight regulation window for 24 V reference designs |
| Dynamic Resistance (rd) | 60 Ω max at IZ = 5 mA - determines load regulation sensitivity and ripple rejection capability |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C - sets maximum continuous DC power handling before thermal derating |
| Reverse Current (IR) | 2 µA max at VR = 19.0 V - ensures low leakage in high-impedance bias networks |
| Junction Temperature (Tj) | –55°C to +150°C - enables use in extended-temperature industrial and automotive under-hood environments |
| Temperature Coefficient (γZ) | +0.07 mV/°C - provides known, linear drift behavior for temperature-compensated reference designs |
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.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connect (NC) | Internally unconnected - must remain floating; no routing or soldering required |
| 2 | Anode | DC current entry point during forward bias; tied to lower-potential node in Zener configuration |
| 3 | Cathode | DC current exit point during reverse breakdown; connected to regulated output node |
Key Features
| Feature | Design Value |
|---|---|
| Grade-B3 voltage tolerance | ±2.1% zener voltage spread - enables tighter system-level accuracy without external trimming |
| MPAK surface-mount package | 0.55 mm terminal pitch, 1.0 mm × 1.3 mm body - supports automated placement and high-density PCB layouts |
| Pulse-tested characterization | 40 ms test pulse - guarantees parameter stability under real-world transient loading, not just DC conditions |
| Low leakage at 19 V | ≤2 µA reverse current - preserves bias network integrity in micropower sensor interfaces and battery-backed circuits |
Applications
| Industrial Sensor Signal Conditioning | Microcontroller ADC Reference |
|---|---|
Use Scenario: Stabilizing excitation voltage for resistive bridge sensors (e.g., strain gauges, pressure transducers) in PLC analog input modules. IC Role / Device Role / Timing Role: Zener diode providing fixed 24 V reference for ratiometric bridge excitation and analog front-end biasing. Use Value: Maintains <±0.5% full-scale accuracy over –40°C to +85°C ambient due to predictable +0.07 mV/°C drift and low dynamic resistance. |
Use Scenario: Supplying precise reference voltage to 12-bit SAR ADCs in embedded data loggers powered by 3.3 V LDOs. IC Role / Device Role / Timing Role: Low-leakage (≤2 µA) Zener shunt regulator generating clean 2.5 V or 3.3 V reference via resistor divider from 24 V rail. Use Value: Enables ≤1 LSB INL error across temperature by minimizing reference drift and noise coupling into high-impedance ADC inputs. |
| Switch-Mode Power Supply Feedback | Overvoltage Protection Clamp |
Use Scenario: Setting output voltage threshold in isolated flyback converters using optocoupler feedback with TL431-like topology. IC Role / Device Role / Timing Role: Precision Zener element in secondary-side voltage sensing network, directly replacing TL431 in cost-sensitive designs. Use Value: Delivers comparable regulation accuracy (±2.1%) with simpler passive design, eliminating need for external op-amp or reference IC. |
Use Scenario: Clamping transient surges on 24 V control bus in factory automation I/O modules exposed to inductive switching noise. IC Role / Device Role / Timing Role: Fast-response shunt clamp absorbing >100 V spikes while limiting bus voltage to ≤25.6 V peak. Use Value: Survives repeated 200 mW surge events without degradation due to robust silicon epitaxial construction and 150°C junction rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C24LT1G | Zener voltage 22.8–25.2 V (±5%), SOT-23 package, 350 mW Pd, 90 Ω rd | Higher power rating but wider voltage tolerance and larger footprint - better for general-purpose clamping, less suitable for precision references | Select when board space allows SOT-23 and ±5% tolerance is acceptable; avoid where <±2.5% regulation is required. |
| MMSZ5248B-TP | Zener voltage 23.5–25.5 V (±5%), SOD-123 package, 500 mW Pd, 35 Ω rd | Lower dynamic resistance and higher power, but grade-B only - lacks B3's tight 24 V binning for critical references | Prefer for high-current shunt applications; not recommended where B3-grade voltage consistency across production lots is mandatory. |
Compared with BZX84-C24LT1G and MMSZ5248B-TP, HZM24NB3TR-E offers the narrowest voltage spread (±2.1%) in an ultra-compact MPAK package, making it uniquely suited for space-constrained, high-accuracy 24 V reference designs where batch-to-batch consistency matters more than raw power handling.
Availability
HZM24NB3TR-E is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, microcontroller ADC reference generation, and switch-mode power supply feedback requiring stable component supply across long-lifecycle embedded programs.
Supply support for HZM24NB3TR-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 manufacturer headquartered in Japan, specializing in microcontrollers, analog and power devices, and timing solutions for industrial, automotive, and infrastructure markets.
HZM24NB3TR-E belongs to the HZM-N Series of silicon epitaxial planar Zener diodes, engineered specifically for high-stability voltage reference and regulation in space-constrained, thermally demanding applications - not general-purpose clamping.
FAQ
What is the exact zener voltage range for HZM24NB3TR-E at 5 mA?
The HZM24NB3TR-E has a guaranteed zener voltage range of 24.54 V to 25.57 V when tested at IZ = 5 mA and Ta = 25°C. This B3-grade specification corresponds to ±2.1% tolerance around the nominal 24 V point, confirmed in the R07DS0358EJ0600 Rev.6.00 datasheet Table on page 3. The value is measured using a 40 ms pulse to avoid thermal drift during test.
Does HZM24NB3TR-E have a pin 1 connection, and what is its function?
No - pin 1 of the HZM24NB3TR-E is designated NC (No Connect) and is internally unconnected. As shown in the "Pin Arrangement" diagram on page 1 of the datasheet, only pins 2 (Anode) and 3 (Cathode) are electrically active. Pin 1 must remain unconnected on the PCB; routing or soldering to it may compromise reliability or violate package specifications.
What is the maximum reverse voltage HZM24NB3TR-E can withstand before breakdown?
The HZM24NB3TR-E is characterized to maintain ≤2 µA reverse current at VR = 19.0 V, per the Electrical Characteristics table on page 2 of the datasheet. Its nominal breakdown occurs at 24.54–25.57 V. Applying voltages above 25.57 V risks entering uncontrolled avalanche, so design margin should keep operating reverse voltage below 19 V unless actively regulating in Zener mode.
Is HZM24NB3TR-E suitable for automotive applications?
HZM24NB3TR-E carries Renesas' "Standard" quality grade per Note 7 on page 6 of the datasheet, meaning it is qualified for industrial and consumer applications - including industrial vehicles and non-safety-critical automotive subsystems - but not for AEC-Q101-qualified automotive powertrain or ADAS systems. Its –55°C to +150°C junction rating supports under-hood use, but formal automotive qualification requires additional testing not covered in this preliminary datasheet.
How does the temperature coefficient of HZM24NB3TR-E affect circuit accuracy?
The HZM24NB3TR-E exhibits a temperature coefficient of +0.07 mV/°C near 24 V, as shown in Figure 2 on page 5. Over a 100°C ambient range (–25°C to +75°C), this contributes ~7 mV total drift - approximately ±0.03% of 24 V. For high-accuracy references, this predictable linear drift can be compensated in firmware or with complementary components, unlike uncharacterized or nonlinear coefficients found in lower-grade Zeners.
HZM24NB3TR-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:
- -
HZM24NB3TR-E FAQ
1.How can I place an order for HZM24NB3TR-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZM24NB3TR-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 HZM24NB3TR-E reliable?
The price and inventory of HZM24NB3TR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZM24NB3TR-E is usually 5 days.
3.What payment methods are accepted for HZM24NB3TR-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZM24NB3TR-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZM24NB3TR-E?
HZM24NB3TR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZM24NB3TR-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 HZM24NB3TR-E?
For technical support, including HZM24NB3TR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZM24NB3TR-E requirements.
6.How does Aetrix verify that HZM24NB3TR-E is sourced from the original manufacturer or authorized distributors?
All HZM24NB3TR-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 HZM24NB3TR-E meets industry standards.
7.What is the process for return or replacement of HZM24NB3TR-E?
All HZM24NB3TR-E units undergo pre-shipment inspection (PSI). If there is an issue with HZM24NB3TR-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 HZM24NB3TR-E part is unused and in its original packaging.
Return procedure for HZM24NB3TR-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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