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Renesas HZM3.0NB2TR-E
- Part No.:
- HZM3.0NB2TR-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
HZM3.0NB2TR-E.pdf
- Description:
- DIODE ZENER 3.08V 200MW 3MPAK
- Quantity:
- Payment:
- Shipping:
Inventory:54,000
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Product details
Overview
HZM3.0NB2TR-E from Renesas Electronics (formerly Hitachi) 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 3.0 V (2.95–3.20 V at 5 mA), with dynamic resistance of 120 Ω, reverse current ≤1.0 µA at 1.0 V, and power dissipation up to 200 mW in the MPAK package - commonly used in voltage regulation for sensor biasing, ADC references, and power supply feedback networks.
For engineers reviewing the HZM3.0NB2TR-E datasheet, HZM3.0NB2TR-E pinout, HZM3.0NB2TR-E application, or HZM3.0NB2TR-E equivalent, key selection criteria include its tight zener voltage tolerance (B2 grade), low dynamic impedance, surface-mount MPAK footprint, and suitability for space-constrained 3.0 V reference designs requiring stable temperature coefficient behavior.
Technical Context
The HZM3.0NB2TR-E operates as a two-terminal voltage reference device using controlled avalanche and Zener breakdown mechanisms. Its B2 grade specifies a zener voltage range of 2.95 V to 3.20 V at IZ = 5 mA, with temperature coefficient near zero crossing (~0.01 %/°C at ~3.0 V) per Figure 2 of the datasheet.
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 Ta = 25°C - derating linearly above 25°C per Fig. 3. The device uses an epitaxial planar structure for improved stability and reproducibility versus diffused Zeners.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 2.95–3.20 V at IZ = 5 mA - defines precise 3.0 V stabilization window for low-voltage reference use. |
| Dynamic Resistance (rd) | 120 Ω max at IZ = 5 mA - determines output impedance and load regulation sensitivity in shunt regulator topologies. |
| Reverse Current (IR) | ≤1.0 µA at VR = 1.0 V - ensures minimal leakage in standby or high-impedance bias networks. |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C - sets maximum continuous power handling before thermal derating applies. |
| Junction Temperature (Tj) | 150°C max - defines upper thermal limit for reliable long-term operation in enclosed or hot environments. |
| Package | MPAK (JEDEC SC-59A) - 3-pin SMT package with NC, Anode, Cathode; enables high-density PCB layout and automated assembly. |
Pinout & Package
MPAK package (JEDEC SC-59A), 3-terminal surface-mount outline with non-functional lead 1 (NC), lead 2 (Anode), and lead 3 (Cathode). Dimensions: 2.8 × 1.9 × 0.95 mm (L × W × H), weight 0.011 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connect (NC) | Electrically isolated; no internal connection - must remain unconnected or floating on PCB. |
| 2 | Anode | Connected to lower-potential node in reverse-bias configuration; current enters here during zener conduction. |
| 3 | Cathode | Connected to higher-potential node; zener voltage develops across cathode-to-anode terminals under reverse bias. |
Key Features
| Feature | Design Value |
|---|---|
| Tight Zener Voltage Tolerance (B2 Grade) | 2.95–3.20 V at 5 mA - reduces calibration overhead in precision 3.0 V reference designs. |
| Low Dynamic Impedance | 120 Ω max - improves regulation against load transients in shunt-based voltage references. |
| Surface-Mount MPAK Package | SC-59A footprint - supports high-density placement and reflow-compatible manufacturing. |
| Stable Temperature Coefficient | ~0.01 %/°C near 3.0 V - minimizes drift over industrial temperature range (–40°C to +85°C). |
Applications
| Industrial Sensor Biasing | ADC Reference Voltage Source |
|---|---|
|
Use Scenario: Providing stable excitation voltage to resistive temperature detectors (RTDs) or bridge sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Shunt voltage reference establishing fixed 3.0 V bias point independent of supply variation. Use Value: Enables <1% full-scale error in 12-bit sensor signal chains by holding bias within ±25 mV over temperature and line variations. |
Use Scenario: Supplying reference voltage to 3.0 V-input SAR ADCs in portable data loggers and battery-powered instrumentation. IC Role / Device Role / Timing Role: Low-noise, low-drift voltage reference replacing larger three-terminal IC references where board space is constrained. Use Value: Delivers <±0.5% initial accuracy and <50 ppm/°C drift - sufficient for 10-bit effective resolution without trimming. |
| Power Supply Feedback Network | Overvoltage Protection Clamp |
|
Use Scenario: Setting regulated output voltage in isolated flyback converters using optocoupler feedback with TL431-like topology. IC Role / Device Role / Timing Role: Precision zener element in secondary-side error amplifier divider network. Use Value: Allows accurate 3.3 V ±1% output setting with minimal external resistor count and no active components in feedback path. |
Use Scenario: Clamping transient surges on 3.3 V I/O lines in automotive body control modules exposed to load dump events. IC Role / Device Role / Timing Role: Fast-reacting shunt clamp limiting voltage excursion to ≤3.2 V during ESD or inductive kick events. Use Value: Responds within nanoseconds to suppress >3.2 V spikes while dissipating <200 mW - protects downstream logic without crowbar action. |
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-C3V0LT1G | Zener voltage 2.8–3.2 V (±6.7%), rd = 90 Ω max, SOT-23 package, Pd = 300 mW. | Higher power rating but looser initial tolerance; lacks B1/B2/B3 grading granularity. | Preferred when higher surge power handling is needed and tighter voltage binning is not required. |
| MMSZ4684T1G | Zener voltage 2.85–3.15 V (±5%), rd = 150 Ω max, SOD-123 package, Pd = 500 mW. | Larger SOD-123 footprint and higher power; less stable tempco (~0.05 %/°C) than HZM3.0NB2TR-E. | Chosen for cost-sensitive consumer applications where thermal drift is less critical and layout space allows larger package. |
Compared with BZX84-C3V0LT1G and MMSZ4684T1G, the HZM3.0NB2TR-E offers superior voltage binning control (B2 grade), lower temperature coefficient near 3.0 V, and a compact MPAK footprint - making it optimal for high-accuracy, space-constrained industrial references where consistent performance across production lots matters.
Availability
HZM3.0NB2TR-E is available at Aetrix Electronics and suitable for industrial sensor biasing, ADC reference voltage sourcing, and power supply feedback networks requiring stable component supply, consistent parametric performance, and long-term obsolescence management.
Supply support for HZM3.0NB2TR-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 Corporation, formed from the merger of NEC Electronics and Renesas Technology, is a global semiconductor leader delivering microcontrollers, analog, and power devices for industrial, automotive, and infrastructure markets.
The HZM-N Series was developed by Hitachi (now Renesas) specifically for high-reliability, low-power voltage stabilization in compact SMT applications - emphasizing tight voltage grading, stable temperature behavior, and compatibility with automated assembly processes.
FAQ
What is the exact zener voltage range for HZM3.0NB2TR-E?
The HZM3.0NB2TR-E has a guaranteed zener voltage range of 2.95 V to 3.20 V at test current IZ = 5 mA, per its B2 grade designation in the official Renesas datasheet (ADE-208-130C Rev. 3). This binning ensures tighter distribution than standard B-grade parts and supports precision reference design without post-production sorting.
Is pin 1 of HZM3.0NB2TR-E electrically connected?
No - pin 1 of the HZM3.0NB2TR-E is a No Connect (NC) terminal with no internal electrical connection. As confirmed in the "Outline" diagram and "Mark Code" section of the datasheet, only pins 2 (Anode) and 3 (Cathode) are functional; pin 1 must remain unconnected on the PCB to avoid mechanical stress or unintended coupling.
What is the maximum power dissipation for HZM3.0NB2TR-E at 70°C ambient?
At Ta = 70°C, the HZM3.0NB2TR-E's maximum power dissipation is derated to approximately 120 mW, calculated using the linear derating slope shown in Fig. 3 of the datasheet (200 mW at 25°C, zero at ~125°C). This ensures junction temperature remains below 150°C under continuous operation.
Does HZM3.0NB2TR-E have a specified temperature coefficient?
Yes - the HZM3.0NB2TR-E exhibits a temperature coefficient near zero crossing at ~3.0 V, measured at approximately +0.01 %/°C per Figure 2 of the datasheet. This low drift supports stable reference performance across –40°C to +85°C industrial operating ranges without external compensation.
Can HZM3.0NB2TR-E replace a generic 3.0 V Zener diode in existing designs?
Yes, the HZM3.0NB2TR-E can directly replace generic 3.0 V Zeners in most shunt reference applications, provided the MPAK footprint is accommodated and the B2-grade voltage range (2.95–3.20 V) meets system accuracy requirements. Its 120 Ω dynamic resistance and 1.0 µA leakage at 1.0 V offer improved regulation versus many legacy parts.
HZM3.0NB2TR-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 3.08 V
- Tolerance:
- ±4.06%
- Power - Max:
- 200 mW
- Impedance (Max) (Zzt):
- 120 Ohms
- Current - Reverse Leakage @ Vr:
- 50 µA @ 1 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 3-MPAK
HZM3.0NB2TR-E FAQ
1.How can I place an order for HZM3.0NB2TR-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZM3.0NB2TR-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 HZM3.0NB2TR-E reliable?
The price and inventory of HZM3.0NB2TR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZM3.0NB2TR-E is usually 5 days.
3.What payment methods are accepted for HZM3.0NB2TR-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZM3.0NB2TR-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZM3.0NB2TR-E?
HZM3.0NB2TR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZM3.0NB2TR-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 HZM3.0NB2TR-E?
For technical support, including HZM3.0NB2TR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZM3.0NB2TR-E requirements.
6.How does Aetrix verify that HZM3.0NB2TR-E is sourced from the original manufacturer or authorized distributors?
All HZM3.0NB2TR-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 HZM3.0NB2TR-E meets industry standards.
7.What is the process for return or replacement of HZM3.0NB2TR-E?
All HZM3.0NB2TR-E units undergo pre-shipment inspection (PSI). If there is an issue with HZM3.0NB2TR-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 HZM3.0NB2TR-E part is unused and in its original packaging.
Return procedure for HZM3.0NB2TR-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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