My Inquiry
My Account
Renesas HZM24NB2TL-E
- Part No.:
- HZM24NB2TL-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZM24NB2TL-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:114,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
HZM24NB2TL-E from Renesas Electronics is a silicon epitaxial planar Zener diode designed for precision voltage stabilization in low-power analog and reference circuits, with a nominal zener voltage of 24.54 V to 25.57 V at 5 mA test current, 60 Ω dynamic resistance, and 200 mW power dissipation in the MPAK (SC-59A) surface-mount package.
For engineers reviewing the HZM24NB2TL-E datasheet, HZM24NB2TL-E pinout, HZM24NB2TL-E application, or HZM24NB2TL-E equivalent, this device serves as a stable, temperature-compensated voltage reference in power supply feedback loops, sensor biasing networks, and overvoltage protection circuits where tight tolerance and low dynamic impedance are required.
Technical Context
The HZM24NB2TL-E operates as a two-terminal shunt regulator, maintaining a stable reverse-biased breakdown voltage across its cathode–anode terminals under controlled current conditions. Its zener voltage exhibits a positive temperature coefficient of approximately +0.07 mV/°C near 24 V, enabling predictable thermal drift behavior in compensated designs.
It is rated for junction temperatures up to 150°C and storage from –55°C to +150°C, with absolute maximum power dissipation of 200 mW at 25°C ambient-derating linearly above 25°C per Fig.3 in the datasheet. The device uses silicon epitaxial planar construction for consistent breakdown characteristics and low leakage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 24.54 V min to 25.57 V max at IZ = 5 mA - defines stable regulation range for feedback or reference use |
| Dynamic Resistance (rd) | 60 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C - sets maximum continuous power handling before thermal derating applies |
| Reverse Current (IR) | 2 µA max at VR = 19.0 V - ensures low leakage below breakdown, critical for high-impedance bias networks |
| Junction Temperature (Tj) | 150°C max - constrains PCB layout and thermal management for reliability in enclosed environments |
| Package | MPAK (SC-59A), JEITA code PLSP0003ZC-A - enables high-density SMT assembly with 0.65 mm lead pitch and 1.0 mm profile |
Pinout & Package
MPAK (SC-59A) surface-mount package: 3-terminal, single-row, gull-wing leads; body size 2.7 × 1.35 × 0.95 mm (L × W × H); terminal pitch 0.65 mm; weight 0.011 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connect (NC) | Internally unconnected; must remain floating-no routing or soldering required |
| 2 | Anode | Connected to circuit ground or lower potential node in shunt regulator configuration |
| 3 | Cathode | Connected to regulated voltage node; carries full zener current during operation |
Key Features
| Feature | Design Value |
|---|---|
| Grade B2 zener voltage tolerance | ±2.1% (24.54–25.57 V) - enables tighter system-level voltage accuracy without external trimming |
| Low dynamic resistance | 60 Ω max - minimizes output voltage variation under changing load or input conditions |
| MPAK package compatibility | JEITA PLSP0003ZC-A footprint - supports automated high-speed placement and reflow with standard SC-59A tooling |
| Stable temperature coefficient | +0.07 mV/°C near 24 V - allows predictable drift compensation in wide-temperature industrial applications |
Applications
| Industrial Power Supply Feedback | Automotive Sensor Biasing |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback or buck-derived auxiliary supplies for PLC I/O modules. IC Role / Device Role / Timing Role: Shunt voltage reference in optocoupler feedback path, setting precise 24 V output threshold. Use Value: Maintains ±1% output stability over –40°C to +85°C due to low rd and predictable γZ, reducing need for secondary regulation. |
Use Scenario: Providing stable bias voltage to resistive temperature detectors (RTDs) in engine coolant sensors. IC Role / Device Role / Timing Role: Precision voltage reference for constant-current excitation circuitry driving 100 Ω PT100 elements. Use Value: Enables <10 ppm/°C measurement drift by delivering low-noise, low-drift 24 V bias independent of supply rail fluctuations. |
| Medical Instrument Reference | Test & Measurement Calibration |
Use Scenario: Generating fixed reference for analog front-end gain stages in portable ECG signal conditioners. IC Role / Device Role / Timing Role: Low-leakage (2 µA max) voltage clamp ensuring accurate DC offset control in high-impedance biopotential inputs. Use Value: Prevents baseline wander and amplifier saturation by holding common-mode voltage within ADC input range under varying electrode contact impedance. |
Use Scenario: Serving as traceable voltage standard in handheld multimeter internal calibration circuits. IC Role / Device Role / Timing Role: Primary shunt reference in self-calibrating voltage divider network, verified against NIST-traceable sources. Use Value: Delivers long-term stability (<0.5% annual drift) and repeatability essential for Class II handheld meter accuracy certification. |
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 |
|---|---|---|---|
| BZX84-C24LT1G | Zener voltage 22.8–25.2 V (±5%), rd = 90 Ω max, SOT-23 package | Wider tolerance and higher dynamic resistance; suitable for non-critical regulation | Select when cost sensitivity outweighs precision requirements and board space permits SOT-23 footprint |
| MMSZ5245B-TP | Zener voltage 23.5–25.5 V (±5%), rd = 75 Ω max, SOD-123 package | Loose grade tolerance, higher leakage (5 µA), smaller thermal mass | Choose for compact layouts where 200 mW derating margin is acceptable and ±5% VZ meets system spec |
Compared with BZX84-C24LT1G and MMSZ5245B-TP, the HZM24NB2TL-E provides tighter grade-B2 tolerance (±2.1%), lower dynamic resistance (60 Ω), and superior thermal robustness (150°C Tj), making it preferred for industrial and medical applications demanding long-term stability and low drift.
Availability
HZM24NB2TL-E is available at Aetrix Electronics and suitable for industrial power supply feedback, automotive sensor biasing, medical instrument reference, and test & measurement calibration requiring stable component supply, consistent parametric performance, and RoHS-compliant packaging.
Supply support for HZM24NB2TL-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 advanced SoCs for industrial, automotive, and infrastructure markets.
The HZM-N Series is part of Renesas' discrete voltage reference portfolio, engineered specifically for high-stability, low-drift shunt regulation in space-constrained, thermally demanding applications such as factory automation controllers and automotive ECUs.
FAQ
What is the exact zener voltage range for HZM24NB2TL-E at 5 mA?
The HZM24NB2TL-E has a guaranteed zener voltage range of 24.54 V minimum to 25.57 V maximum when tested at IZ = 5 mA and Ta = 25°C. This B2-grade specification reflects ±2.1% tolerance around the nominal 24 V point, confirmed in Table on page 3 of R07DS0358EJ0600 Rev.6.00.
Is pin 1 of HZM24NB2TL-E electrically connected?
No-pin 1 of the HZM24NB2TL-E is designated NC (No Connect) and is internally unconnected. Per the "Pin Arrangement" diagram on page 1 of the datasheet, only pins 2 (Anode) and 3 (Cathode) are functional; pin 1 must remain unconnected in PCB layout and assembly.
What is the maximum reverse leakage current for HZM24NB2TL-E?
The maximum reverse leakage current (IR) for HZM24NB2TL-E is 2 µA at VR = 19.0 V, as specified in the Electrical Characteristics table on page 3. This low leakage supports high-impedance reference nodes and minimizes error in precision biasing applications.
Can HZM24NB2TL-E be used in automotive applications?
The HZM24NB2TL-E is classified as a "Standard" quality grade device per Renesas' quality policy (page 6), intended for industrial and commercial equipment-not automotive safety-critical systems. It may be used in non-safety automotive subsystems (e.g., infotainment power rails) but requires full qualification per AEC-Q101 if deployed in engine bay or ADAS-related functions.
What is the thermal derating behavior of HZM24NB2TL-E above 25°C?
HZM24NB2TL-E follows linear thermal derating from 200 mW at Ta = 25°C, as shown in Fig.3 on page 5. Derating begins immediately above 25°C, reaching ~120 mW at 75°C ambient and ~40 mW at 125°C-requiring careful thermal design in enclosed enclosures or high-power-density layouts.
HZM24NB2TL-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:
- -
HZM24NB2TL-E FAQ
1.How can I place an order for HZM24NB2TL-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZM24NB2TL-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 HZM24NB2TL-E reliable?
The price and inventory of HZM24NB2TL-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZM24NB2TL-E is usually 5 days.
3.What payment methods are accepted for HZM24NB2TL-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZM24NB2TL-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZM24NB2TL-E?
HZM24NB2TL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZM24NB2TL-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 HZM24NB2TL-E?
For technical support, including HZM24NB2TL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZM24NB2TL-E requirements.
6.How does Aetrix verify that HZM24NB2TL-E is sourced from the original manufacturer or authorized distributors?
All HZM24NB2TL-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 HZM24NB2TL-E meets industry standards.
7.What is the process for return or replacement of HZM24NB2TL-E?
All HZM24NB2TL-E units undergo pre-shipment inspection (PSI). If there is an issue with HZM24NB2TL-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 HZM24NB2TL-E part is unused and in its original packaging.
Return procedure for HZM24NB2TL-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZM24NB2TL-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…
