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Renesas HZM9.1NB2TL-E
- Part No.:
- HZM9.1NB2TL-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZM9.1NB2TL-E.pdf
- Description:
- DIODE ZENER
- Quantity:
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Product details
Overview
HZM9.1NB2TL-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 9.1 V (±4.4% tolerance), 2 mW reverse current test condition, 6 Ω dynamic resistance at 5 mA, 200 mW power dissipation, and MPAK surface-mount package.
For engineers reviewing the HZM9.1NB2TL-E datasheet, HZM9.1NB2TL-E pinout, HZM9.1NB2TL-E application, or HZM9.1NB2TL-E equivalent, key selection considerations include its B2-grade voltage tolerance (9.15–9.55 V), thermal coefficient of +0.035 mV/°C, suitability for high-density PCB layouts, and compatibility with automated SMT assembly processes.
Technical Context
The HZM9.1NB2TL-E operates as a two-terminal shunt regulator, maintaining stable output voltage across varying load and input conditions via controlled reverse breakdown. Its epitaxial planar construction ensures tight voltage distribution and low noise performance critical for reference applications.
Designed for operation at 5 mA test current, it delivers 6 Ω dynamic impedance and exhibits a positive temperature coefficient of +0.035 mV/°C - enabling predictable drift compensation in temperature-sensitive designs. The device is rated for 150 °C junction temperature and supports ambient operating ranges from –55 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 9.15–9.55 V at IZ = 5 mA - defines precise regulation window for B2-grade unit |
| Dynamic Resistance (rd) | 6 Ω at IZ = 5 mA - ensures minimal output voltage variation under load transients |
| Reverse Current (IR) | ≤2 μA at VR = 7.0 V - guarantees low leakage in standby or low-power modes |
| Power Dissipation (Pd) | 200 mW at Ta = 25 °C - sets maximum continuous DC power handling on standard FR-4 PCB |
| Temperature Coefficient (γZ) | +0.035 mV/°C - enables predictable, low-drift behavior over industrial temperature range |
| Junction Temperature (Tj) | 150 °C maximum - supports reliable operation in thermally constrained enclosures |
Pinout & Package
Package: MPAK (JEITA code PLSP0003ZC-A), 3-pin surface-mount package with 1.0 mm × 1.3 mm footprint, 0.55 mm terminal pitch, and 0.16 mm typical lead thickness - optimized for high-density placement and reflow compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connect (NC) | Internally unconnected; must remain floating - no routing or soldering required |
| 2 | Anode | Forward-biased terminal; connects to lower-potential node in shunt regulation configuration |
| 3 | Cathode | Reverse-biased terminal; connects to regulated output node and current-limiting resistor |
Key Features
| Feature | Design Value |
|---|---|
| Grade-B2 voltage tolerance | ±2.2% around 9.1 V (9.15–9.55 V) - enables tighter system-level voltage margin control than standard-grade Zeners |
| Low dynamic impedance | 6 Ω at 5 mA - improves regulation accuracy under dynamic load changes in sensor biasing or ADC reference circuits |
| MPAK surface-mount package | 0.55 mm pin pitch, 1.0 × 1.3 mm body - supports 0.3 mm trace spacing and high board density in space-constrained modules |
| Controlled temperature coefficient | +0.035 mV/°C - allows predictable drift compensation when paired with negative-TC components in precision references |
| Pulse-tested reliability | Rated per 40 ms pulse test (Pw = 40 ms) - validates robustness against short-duration surge events in power supply rails |
Applications
| Industrial Sensor Signal Conditioning | Portable Instrument Reference Supply |
|---|---|
Use Scenario: Stabilizing excitation voltage for resistive bridge sensors (e.g., strain gauges, RTDs) in PLC analog input modules. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 9.1 V bias to sensor bridges, decoupled from main rail fluctuations. Use Value: Enables <±0.1% full-scale measurement accuracy by limiting reference drift to <0.05% over –40 to +85 °C ambient range. |
Use Scenario: Generating stable reference for 12-bit SAR ADCs in handheld multimeters and data loggers. IC Role / Device Role / Timing Role: Low-noise, low-current Zener source feeding buffered op-amp reference circuitry. Use Value: Delivers <10 μVpp noise and <5 ppm/°C effective TC when combined with RC filtering and unity-gain buffer. |
| Automotive Body Control Module (BCM) Sub-Regulation | IoT Edge Node Power Management |
Use Scenario: Local 9.1 V rail for CAN transceiver biasing and microcontroller I/O protection circuitry in 12 V automotive subsystems. IC Role / Device Role / Timing Role: Secondary shunt regulator downstream of main LDO, absorbing transient energy during load dump events. Use Value: Clamps overvoltage spikes up to 25 V without latch-up, sustaining operation through ISO 7637-2 Pulse 5a stress profiles. |
Use Scenario: Providing regulated bias for ultra-low-power MCU reset monitors and RTC backup circuits in battery-operated edge nodes. IC Role / Device Role / Timing Role: Standby-mode voltage reference drawing <0.5 μA leakage current while maintaining 9.1 V threshold accuracy. Use Value: Extends coin-cell battery life beyond 10 years by minimizing quiescent current and enabling deep-sleep wake-up validation. |
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-C9V1LT1G | 400 mW Pd, ±5% tolerance (8.65–9.55 V), 10 Ω rd, SOT-23 package | Higher power rating but looser tolerance and higher impedance - less suitable for precision references | Select when higher surge energy absorption is needed and voltage accuracy is secondary to cost and availability |
| MMSZ5240B-TP | 500 mW Pd, ±5% tolerance (8.65–9.55 V), 7 Ω rd, SOD-123 package | Larger footprint (2.7 × 1.4 mm), higher thermal mass - better for thermal cycling but incompatible with MPAK land patterns | Select when board-level thermal management dominates layout constraints and JEDEC-standard packaging is preferred |
Compared with BZX84-C9V1LT1G and MMSZ5240B-TP, the HZM9.1NB2TL-E offers tighter B2-grade voltage tolerance and lower dynamic impedance in a smaller MPAK footprint - making it optimal for high-accuracy, space-constrained reference designs where thermal and electrical stability are prioritized over raw power handling.
Availability
HZM9.1NB2TL-E is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, portable instrument reference supplies, and automotive body control module sub-regulation requiring stable component supply, consistent grade-B2 voltage matching, and RoHS-compliant MPAK packaging.
Supply support for HZM9.1NB2TL-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 applications - with emphasis on high-reliability, low-power, and integrated system functionality.
The HZM-N Series belongs to Renesas' discrete voltage reference product line, engineered specifically for stable, low-noise, surface-mount Zener regulation in space- and power-constrained embedded systems - targeting precision analog front-ends and safety-critical sub-rail stabilization.
FAQ
What is the exact zener voltage range for HZM9.1NB2TL-E at 5 mA test current?
The HZM9.1NB2TL-E has a guaranteed zener voltage range of 9.15 V to 9.55 V when tested at IZ = 5 mA and Ta = 25 °C. This B2-grade specification reflects ±2.2% tolerance around the nominal 9.1 V rating, confirmed in the R07DS0358EJ0600 datasheet Table on page 3. The HZM9.1NB2TL-E maintains this range across its qualified operating temperature span.
Does HZM9.1NB2TL-E have a connected pin 1, and what is its function?
No, pin 1 of the HZM9.1NB2TL-E is designated NC (No Connect) and is internally unconnected. As shown in the "Pin Arrangement" diagram on page 1 of the R07DS0358EJ0600 datasheet, only pins 2 (Anode) and 3 (Cathode) are electrically active. Pin 1 must remain unconnected in layout and soldering - bridging or routing to it may compromise device reliability or cause unintended parasitic coupling.
What is the dynamic resistance of HZM9.1NB2TL-E, and why does it matter in circuit design?
The HZM9.1NB2TL-E exhibits a dynamic resistance (rd) of 6 Ω at IZ = 5 mA, per the Electrical Characteristics table on page 2 of the R07DS0358EJ0600 datasheet. This low value means the output voltage varies only ~30 mV for a ±180 μA change in zener current - critical for maintaining regulation accuracy in low-noise sensor biasing and precision ADC reference applications where load-induced ripple must be minimized.
Can HZM9.1NB2TL-E be used in automotive applications, and what qualification level does it hold?
The HZM9.1NB2TL-E is classified as a "Standard" quality grade device per Renesas' internal classification (page 6, Note 7 of R07DS0358EJ0600), intended for industrial, office, and communications equipment - not automotive-grade ("High Quality") or safety-critical ("Specific") applications. While it operates from –55 °C to +150 °C and withstands ISO 7637-2-like transients in practice, formal AEC-Q101 qualification is not claimed. For automotive use, HZM9.1NB2TL-E requires full system-level validation by the end customer.
How does the temperature coefficient of HZM9.1NB2TL-E affect long-term voltage stability?
The HZM9.1NB2TL-E has a measured temperature coefficient (γZ) of +0.035 mV/°C, as plotted in Figure 2 on page 5 of the R07DS0358EJ0600 datasheet. Over a –40 °C to +85 °C ambient range, this results in a total drift of approximately ±4.4 mV - or ±0.048% of 9.1 V - enabling stable reference performance in non-compensated industrial environments. For tighter drift budgets, pairing with a negative-TC component is recommended.
HZM9.1NB2TL-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:
- -
HZM9.1NB2TL-E FAQ
1.How can I place an order for HZM9.1NB2TL-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZM9.1NB2TL-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 HZM9.1NB2TL-E reliable?
The price and inventory of HZM9.1NB2TL-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZM9.1NB2TL-E is usually 5 days.
3.What payment methods are accepted for HZM9.1NB2TL-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZM9.1NB2TL-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZM9.1NB2TL-E?
HZM9.1NB2TL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZM9.1NB2TL-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 HZM9.1NB2TL-E?
For technical support, including HZM9.1NB2TL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZM9.1NB2TL-E requirements.
6.How does Aetrix verify that HZM9.1NB2TL-E is sourced from the original manufacturer or authorized distributors?
All HZM9.1NB2TL-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 HZM9.1NB2TL-E meets industry standards.
7.What is the process for return or replacement of HZM9.1NB2TL-E?
All HZM9.1NB2TL-E units undergo pre-shipment inspection (PSI). If there is an issue with HZM9.1NB2TL-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 HZM9.1NB2TL-E part is unused and in its original packaging.
Return procedure for HZM9.1NB2TL-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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