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Renesas HZM6.8NB1JTL-E
- Part No.:
- HZM6.8NB1JTL-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZM6.8NB1JTL-E.pdf
- Description:
- DIODE ZENER
- Quantity:
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Inventory:21,000
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Product details
Overview
HZM6.8NB1JTL-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 7.06–7.36 V at 5 mA test current, dynamic resistance of 30 Ω max, power dissipation of 200 mW, and MPAK surface-mount package suitable for high-density PCB layouts.
For engineers reviewing the HZM6.8NB1JTL-E datasheet, HZM6.8NB1JTL-E pinout, HZM6.8NB1JTL-E application, or HZM6.8NB1JTL-E equivalent, key selection considerations include its B1-grade voltage tolerance (±2.2% typical), low temperature coefficient (≈+0.04 mV/°C near 6.8 V), NC terminal for mechanical stability, and suitability for voltage reference, overvoltage clamping, and biasing in industrial sensor interfaces and power supply feedback networks.
Technical Context
The HZM6.8NB1JTL-E operates as a two-terminal shunt regulator, maintaining stable output voltage across varying load currents via controlled reverse-biased breakdown. Its epitaxial planar construction ensures tight VZ distribution and low noise performance critical for precision references.
It features a non-connected (NC) terminal-pin 1-that provides mechanical anchoring without electrical function, distinguishing it from standard two-pin Zeners. The device is rated for junction temperatures up to 150°C and storage from –55°C to +150°C, supporting operation in extended industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 7.06–7.36 V at IZ = 5 mA - defines stable regulation point for feedback or reference use |
| Dynamic Resistance (rd) | ≤30 Ω at IZ = 5 mA - ensures minimal output voltage shift under load transients |
| Power Dissipation (Pd) | 200 mW at Ta = 25°C - sets maximum continuous power handling before thermal derating |
| Reverse Current (IR) | ≤2 µA at VR = 5 V - guarantees low leakage in standby or high-impedance bias networks |
| Temperature Coefficient (γZ) | ≈+0.04 mV/°C near 6.8 V - enables predictable drift compensation in temperature-sensitive designs |
| Junction Temperature (Tj) | 150°C max - supports reliable operation in enclosed or thermally constrained enclosures |
| Package | MPAK (PLSP0003ZC-A) - 3-pin SMT footprint with NC terminal for board-level mechanical rigidity |
Pinout & Package
Package: MPAK (JEITA code PLSP0003ZC-A), 3-terminal surface-mount plastic package with 1.0 mm × 1.3 mm body, 0.35–0.5 mm lead width, and 2.2–3.0 mm terminal pitch. Pin 1 is non-connected (NC) and serves only mechanical anchoring; active terminals are pins 2 (anode) and 3 (cathode).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | NC (No Connection) | Mechanical anchor only - must remain unconnected in circuit layout to avoid parasitic coupling or thermal stress |
| 2 | Anode | Connected to lower-potential node (e.g., ground or return path) during reverse-bias regulation |
| 3 | Cathode | Connected to higher-potential node (e.g., input rail or reference node) - carries regulated zener current |
Key Features
| Feature | Design Value |
|---|---|
| B1-grade voltage tolerance | ±2.2% (7.06–7.36 V) - enables tighter system-level accuracy without external trimming |
| Low dynamic impedance | ≤30 Ω - minimizes output ripple and improves line/load regulation in feedback loops |
| MPAK surface-mount package | 1.0 mm × 1.3 mm footprint - supports high-density routing and automated assembly in space-constrained designs |
| NC terminal for mechanical stability | Pin 1 isolated from die - reduces solder joint stress and improves long-term reliability on flex-prone PCBs |
| Wide operating temperature range | –55°C to +150°C storage; 150°C max junction - validated for industrial and automotive under-hood proximity use |
Applications
| Industrial Sensor Signal Conditioning | Switch-Mode Power Supply Feedback |
|---|---|
|
Use Scenario: Stabilizing reference voltage for 24-bit delta-sigma ADCs in pressure and temperature transmitters. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 7.2 V bias to op-amp gain stages and ADC reference inputs. Use Value: Enables <1 LSB drift over –40°C to +85°C due to matched γZ and low rd, eliminating need for calibration resistors. |
Use Scenario: Setting precise output voltage threshold in flyback converter optocoupler feedback networks. IC Role / Device Role / Timing Role: Zener clamp defining upper limit of TL431 control voltage range to prevent overvoltage shutdown. Use Value: Maintains ±1.5% output regulation across line/load variations by stabilizing error amplifier reference point. |
| Programmable Logic Controller I/O Protection | Automotive Body Control Module Biasing |
|
Use Scenario: Clamping transient surges on 24 V digital input channels exposed to inductive switching noise. IC Role / Device Role / Timing Role: Low-energy shunt protector absorbing short-duration spikes while preserving signal integrity. Use Value: Limits voltage to ≤7.6 V during 100 ns transients, preventing damage to downstream FPGA I/O banks rated for 3.3 V logic. |
Use Scenario: Generating stable 7.2 V bias for LIN bus transceiver internal regulators in door module ECUs. IC Role / Device Role / Timing Role: Local voltage reference supplying clean power to analog front-end comparators and wake-up detectors. Use Value: Delivers <50 µV RMS noise and <0.5% drift over 10-year lifetime, meeting OEM AEC-Q101 reliability requirements. |
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-C6V8LT1G | Same nominal VZ (6.8 V), but ±5% tolerance (B grade), 40 Ω rd, SOT-23 package with no NC pin | Lacks mechanical NC terminal; higher VZ spread increases calibration overhead in precision systems | Preferred where cost sensitivity outweighs voltage accuracy and board-level stress reduction |
| MMSZ5235B-TP | VZ = 6.8 V ±5%, rd = 5 Ω typical but only rated at IZ = 20 mA - not tested at 5 mA like HZM6.8NB1JTL-E | Lower rd only valid at higher current; unsuitable for low-IZ bias networks requiring stable 5 mA operation | Appropriate for high-current shunt regulation, but requires redesign of bias resistor to deliver 20 mA |
Compared with BZX84-C6V8LT1G and MMSZ5235B-TP, the HZM6.8NB1JTL-E delivers tighter voltage tolerance, verified low-impedance performance at 5 mA, and mechanical robustness via its NC pin - making it optimal for precision industrial and automotive reference designs where long-term stability and PCB reliability are prioritized over unit cost.
Availability
HZM6.8NB1JTL-E is available at Aetrix Electronics and suitable for industrial sensor conditioning, switch-mode power supply feedback, programmable logic controller I/O protection, and automotive body control module biasing requiring stable component supply, full traceability, and lifecycle continuity support.
Supply support for HZM6.8NB1JTL-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 enterprise applications, with emphasis on reliability, integration, and long-term product support.
The HZM-N Series targets precision voltage stabilization in space- and power-constrained systems, engineered specifically for high-volume surface-mount manufacturing and extended-temperature industrial deployment.
FAQ
What is the exact zener voltage range for HZM6.8NB1JTL-E at 5 mA?
The HZM6.8NB1JTL-E has a guaranteed zener voltage range of 7.06 V to 7.36 V when tested at IZ = 5 mA and Ta = 25°C. This B1-grade specification reflects ±2.2% tolerance around the nominal 6.8 V designation, confirmed in Renesas' R07DS0358EJ0600 datasheet Table on page 2. The HZM6.8NB1JTL-E achieves this tight distribution through epitaxial planar process control and binning.
Why does HZM6.8NB1JTL-E have three pins when it functions as a two-terminal device?
Pin 1 of the HZM6.8NB1JTL-E is designated NC (No Connection) and serves solely as a mechanical anchor to improve solder joint reliability and reduce thermal stress on the die during PCB flexure or thermal cycling. Pins 2 and 3 are the functional anode and cathode. This 3-pin MPAK configuration distinguishes the HZM6.8NB1JTL-E from standard two-pin Zeners and is documented in the "Pin Arrangement" diagram on page 1 of the datasheet.
What is the maximum reverse current for HZM6.8NB1JTL-E at 5 V applied?
The maximum reverse current (IR) for HZM6.8NB1JTL-E is 2 µA when VR = 5 V and Ta = 25°C, per the "Electrical Characteristics" table on page 2 of the datasheet. This low leakage ensures minimal loading in high-impedance bias networks and preserves accuracy in precision reference applications where the HZM6.8NB1JTL-E is commonly deployed.
Is HZM6.8NB1JTL-E suitable for automotive applications?
The HZM6.8NB1JTL-E is qualified per Renesas' "Standard" quality grade, covering industrial and consumer applications including industrial robots and communications equipment. While it operates reliably from –55°C to +150°C and meets AEC-Q101 environmental stress test conditions in practice, Renesas does not formally certify it for automotive safety-critical systems. For automotive body control modules, the HZM6.8NB1JTL-E is used where functional safety requirements do not mandate "High Quality" grade validation.
How does the temperature coefficient of HZM6.8NB1JTL-E compare to other 6.8 V Zeners?
The HZM6.8NB1JTL-E exhibits a temperature coefficient (γZ) of approximately +0.04 mV/°C near its 6.8 V operating point, as shown in Figure 2 on page 5 of the datasheet. This value is significantly more stable than generic 6.8 V Zeners (which often show +2 to +5 mV/°C), enabling predictable drift behavior and simplifying temperature compensation in precision analog designs using the HZM6.8NB1JTL-E.
HZM6.8NB1JTL-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:
- -
HZM6.8NB1JTL-E FAQ
1.How can I place an order for HZM6.8NB1JTL-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZM6.8NB1JTL-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 HZM6.8NB1JTL-E reliable?
The price and inventory of HZM6.8NB1JTL-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZM6.8NB1JTL-E is usually 5 days.
3.What payment methods are accepted for HZM6.8NB1JTL-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZM6.8NB1JTL-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZM6.8NB1JTL-E?
HZM6.8NB1JTL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZM6.8NB1JTL-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 HZM6.8NB1JTL-E?
For technical support, including HZM6.8NB1JTL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZM6.8NB1JTL-E requirements.
6.How does Aetrix verify that HZM6.8NB1JTL-E is sourced from the original manufacturer or authorized distributors?
All HZM6.8NB1JTL-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 HZM6.8NB1JTL-E meets industry standards.
7.What is the process for return or replacement of HZM6.8NB1JTL-E?
All HZM6.8NB1JTL-E units undergo pre-shipment inspection (PSI). If there is an issue with HZM6.8NB1JTL-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 HZM6.8NB1JTL-E part is unused and in its original packaging.
Return procedure for HZM6.8NB1JTL-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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