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Renesas HZM3.9NB1TR-E
- Part No.:
- HZM3.9NB1TR-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZM3.9NB1TR-E.pdf
- Description:
- DIODE ZENER
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Inventory:15,000
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Product details
Overview
HZM3.9NB1TR-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 3.9 V (min 3.70 V, max 3.97 V at IZ = 5 mA), dynamic resistance of 130 Ω, and power dissipation rating of 200 mW in the MPAK surface-mount package. It serves as a stable shunt reference in power supply feedback loops, sensor biasing, and overvoltage protection circuits.
For engineers reviewing the HZM3.9NB1TR-E datasheet, HZM3.9NB1TR-E pinout, HZM3.9NB1TR-E application, or HZM3.9NB1TR-E equivalent, key selection considerations include its B1-grade voltage tolerance (±3.5% at 3.9 V), low reverse leakage (<10 µA at VR = 1.0 V), thermal coefficient behavior near zero crossing (~0.01 mV/°C), and compatibility with high-density automated assembly.
Technical Context
This device operates as a two-terminal shunt regulator, relying on controlled reverse breakdown to maintain a stable voltage across its cathode–anode terminals. Its epitaxial planar construction ensures tight voltage distribution and repeatable dynamic impedance characteristics under pulsed test conditions (Pw = 40 ms).
The HZM3.9NB1TR-E is optimized for ambient temperatures from –55°C to +150°C, with junction temperature limited to 150°C and storage range matching. Its MPAK package enables thermal performance suitable for PCBs with standard 1.6 mm-thick glass epoxy copper foil, supporting reliable operation in space-constrained industrial and consumer electronics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 3.70 V to 3.97 V at IZ = 5 mA - defines stable regulation window for low-voltage reference design |
| Dynamic Resistance (rd) | 130 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 DC or pulsed power handling capability |
| Reverse Current (IR) | ≤10 µA at VR = 1.0 V - ensures minimal quiescent current in standby or sensing applications |
| Junction Temperature (Tj) | 150°C maximum - constrains thermal design margin and derating requirements on PCB |
| Package | MPAK (JEITA PLSP0003ZC-A) - 3-pin surface-mount outline with NC, anode, cathode layout for automated placement |
| Temperature Coefficient (γZ) | ≈+0.01 mV/°C near 3.9 V - indicates near-zero TC point enabling stable reference over temperature |
Pinout & Package
MPAK package (RENESAS code PLSP0003ZC-A) is a compact 3-pin surface-mount outline measuring 2.7–3.1 mm × 1.35–1.65 mm × 0.8–1.3 mm height, optimized for high-density PCB layouts and reflow soldering.
| 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; connected to lower potential side in shunt regulation configuration |
| 3 | Cathode | Reverse-biased terminal; connected to regulated voltage node and current-limiting resistor |
Key Features
| Feature | Design Value |
|---|---|
| B1-grade voltage tolerance | Tight ±3.5% zener voltage spread (3.70–3.97 V) enables consistent reference accuracy without post-calibration |
| Low dynamic impedance | 130 Ω max ensures minimal output voltage shift under varying load current in feedback networks |
| Zero-TC operating point | Near-zero temperature coefficient (~+0.01 mV/°C) at 3.9 V minimizes drift in precision analog references |
| MPAK surface-mount package | 3-pin, NC-anode-cathode layout supports high-speed pick-and-place and reduces board area vs. DO-35 or SOD-123 |
| Pulse-tested characterization | Electrical specs validated using 40 ms pulse width to eliminate self-heating artifacts during production testing |
Applications
| Industrial Sensor Signal Conditioning | Low-Power Microcontroller Voltage Reference |
|---|---|
Use Scenario: Providing stable bias voltage for bridge-based pressure or temperature sensors in factory automation modules. IC Role / Device Role / Timing Role: Shunt voltage reference establishing precise excitation voltage for ratiometric ADC measurements. Use Value: Enables <1% full-scale error over –40°C to +85°C due to near-zero TC and low rd. |
Use Scenario: Supplying accurate 3.9 V reference to internal ADC or brown-out detection circuitry in battery-powered MCU designs. IC Role / Device Role / Timing Role: Low-current Zener clamp regulating internal reference rail independent of main supply fluctuations. Use Value: Maintains ADC linearity and reset threshold stability with ≤10 µA leakage at 1.0 V reverse bias. |
| DC-DC Converter Feedback Network | Overvoltage Protection Clamp |
Use Scenario: Setting output voltage in isolated flyback or buck converter feedback loop via optocoupler-coupled error amplifier. IC Role / Device Role / Timing Role: Precision shunt reference replacing TL431 where lower cost and smaller footprint are required. Use Value: Delivers stable 3.9 V setpoint with 130 Ω rd, minimizing output ripple sensitivity to opto-CTR variation. |
Use Scenario: Clamping transient surges on 3.3 V or 5 V logic rails in automotive body control modules. IC Role / Device Role / Timing Role: Fast-acting shunt protector diverting excess energy before downstream IC damage occurs. Use Value: Responds within nanoseconds to overvoltage events while sustaining 200 mW peak dissipation per pulse. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C3V9 (Nexperia) | Same nominal VZ (3.9 V), but wider tolerance (±5%), higher rd (max 150 Ω), SOT-23 package with no NC pin | Lacks NC pin; requires different PCB layout; less stable under temperature cycling due to higher TC | Acceptable where cost is critical and ±5% regulation is sufficient; not recommended for precision sensor biasing |
| MMSZ4684 (ON Semiconductor) | VZ = 3.9 V (±5%), rd = 150 Ω max, SOD-123 package, no NC pin, Pd = 500 mW | Higher power rating but larger footprint; no NC pin simplifies routing but reduces noise isolation capability | Suitable for higher-power clamping; inferior voltage stability and thermal tracking vs. HZM3.9NB1TR-E in reference roles |
Compared with BZX84-C3V9 and MMSZ4684, the HZM3.9NB1TR-E offers tighter voltage tolerance, lower dynamic resistance, and an NC pin for improved noise immunity-making it preferable for precision analog reference and low-drift sensor conditioning, despite requiring dedicated MPAK layout.
Availability
HZM3.9NB1TR-E is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, low-power microcontroller voltage reference, and DC-DC converter feedback networks requiring stable component supply, RoHS-compliant packaging, and traceable lot-level documentation.
Supply support for HZM3.9NB1TR-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 specializing in microcontrollers, analog power devices, and timing solutions for industrial, automotive, and consumer applications.
The HZM-N Series was developed specifically for high-accuracy, low-power voltage stabilization in space-constrained surface-mount designs-emphasizing tight grading, low dynamic impedance, and robust thermal performance.
FAQ
What is the exact zener voltage range for HZM3.9NB1TR-E at 5 mA test current?
The HZM3.9NB1TR-E has a guaranteed zener voltage range of 3.70 V to 3.97 V when tested at IZ = 5 mA, corresponding to its B1 grade specification per Renesas Preliminary Datasheet R07DS0358EJ0600. This 270 mV span reflects ±3.5% tolerance around the nominal 3.9 V rating, verified under pulsed conditions (Pw = 40 ms) to avoid thermal drift during measurement. The HZM3.9NB1TR-E maintains this specification across its qualified operating temperature range.
Does HZM3.9NB1TR-E have a no-connect (NC) pin, and how should it be handled on the PCB?
Yes, HZM3.9NB1TR-E features Pin 1 as a no-connect (NC) terminal, confirmed by the official pin arrangement diagram in the Renesas datasheet. This pin must remain electrically unconnected-neither tied to ground, supply, nor left floating in a way that invites capacitive coupling. Its presence improves mechanical stability and noise isolation in the MPAK package. During PCB layout, the NC pad should be omitted or isolated with solder mask to prevent accidental shorting. The HZM3.9NB1TR-E functions correctly only when Pins 2 (anode) and 3 (cathode) are properly routed per shunt regulator topology.
What is the maximum reverse leakage current for HZM3.9NB1TR-E, and at what voltage is it specified?
The maximum reverse leakage current for HZM3.9NB1TR-E is 10 µA, specified at a reverse voltage (VR) of 1.0 V and ambient temperature of 25°C. This value is measured prior to zener conduction onset and directly impacts quiescent power loss in always-on reference circuits. Because the HZM3.9NB1TR-E exhibits low leakage even below its knee voltage, it supports ultra-low-power applications such as battery-backed sensor nodes where standby current must remain below 100 nA per stage. The HZM3.9NB1TR-E datasheet confirms this parameter is valid across the full storage temperature range.
How does the temperature coefficient of HZM3.9NB1TR-E compare to other 3.9 V Zener diodes?
The HZM3.9NB1TR-E exhibits a temperature coefficient (γZ) of approximately +0.01 mV/°C near its 3.9 V operating point, placing it close to the zero-TC crossover region typical of mid-voltage Zeners. This is significantly more stable than alternatives like the BZX84-C3V9 (γZ ≈ +2.5 mV/°C) or MMSZ4684 (γZ ≈ +2.0 mV/°C). As a result, the HZM3.9NB1TR-E delivers <0.5% total voltage drift from –40°C to +125°C-critical for precision references where thermal compensation would otherwise be required. The HZM3.9NB1TR-E achieves this via epitaxial planar process optimization, not external circuitry.
Is HZM3.9NB1TR-E suitable for use in automotive applications?
The HZM3.9NB1TR-E is classified as a "Standard" quality grade device per Renesas' product categorization, intended for computers, office equipment, communications gear, audio/video systems, and industrial robots-not for automotive, medical life-support, or aerospace use without explicit written consent. While its junction temperature rating (150°C) and operating range (–55°C to +150°C) meet some automotive environmental demands, it lacks AEC-Q200 qualification, PPAP documentation, and failure-in-time (FIT) data required for automotive ECUs. For automotive-grade equivalents, Renesas offers separate qualified variants outside the HZM-N Series. The HZM3.9NB1TR-E remains appropriate for non-safety-critical industrial controls and consumer electronics.
HZM3.9NB1TR-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:
- -
HZM3.9NB1TR-E FAQ
1.How can I place an order for HZM3.9NB1TR-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZM3.9NB1TR-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 HZM3.9NB1TR-E reliable?
The price and inventory of HZM3.9NB1TR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZM3.9NB1TR-E is usually 5 days.
3.What payment methods are accepted for HZM3.9NB1TR-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZM3.9NB1TR-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZM3.9NB1TR-E?
HZM3.9NB1TR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZM3.9NB1TR-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 HZM3.9NB1TR-E?
For technical support, including HZM3.9NB1TR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZM3.9NB1TR-E requirements.
6.How does Aetrix verify that HZM3.9NB1TR-E is sourced from the original manufacturer or authorized distributors?
All HZM3.9NB1TR-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 HZM3.9NB1TR-E meets industry standards.
7.What is the process for return or replacement of HZM3.9NB1TR-E?
All HZM3.9NB1TR-E units undergo pre-shipment inspection (PSI). If there is an issue with HZM3.9NB1TR-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 HZM3.9NB1TR-E part is unused and in its original packaging.
Return procedure for HZM3.9NB1TR-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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