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Renesas HZM8.2NB2TL-E
- Part No.:
- HZM8.2NB2TL-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZM8.2NB2TL-E.pdf
- Description:
- DIODE ZENER
- Quantity:
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Inventory:36,000
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Product details
Overview
HZM8.2NB2TL-E from Renesas Electronics 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 8.2 V (min 8.02 V, max 8.36 V at IZ = 5 mA), with dynamic resistance of 5.0 Ω, reverse current ≤2 μA at VR = 5.0 V, and power dissipation up to 200 mW in the MPAK package - commonly used in voltage regulation for sensor signal conditioning and microcontroller reference rails.
For engineers reviewing the HZM8.2NB2TL-E datasheet, HZM8.2NB2TL-E pinout, HZM8.2NB2TL-E application, or HZM8.2NB2TL-E equivalent, key selection criteria include its B2-grade zener tolerance (±2.1% at 25°C), low temperature coefficient (≈+0.04 mV/°C near 8.2 V), surface-mount MPAK footprint compatibility, and suitability for space-constrained DC biasing and overvoltage clamping in industrial control modules.
Technical Context
The HZM8.2NB2TL-E operates as a two-terminal shunt regulator, maintaining stable output voltage across varying load currents by conducting excess current through its cathode-anode path when input exceeds VZ. Its epitaxial planar construction ensures tight parametric control and low leakage.
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 that ambient per Fig.3 in the datasheet. The device exhibits a positive zener voltage temperature coefficient of approximately +0.04 mV/°C at 8.2 V, confirming its use in mid-voltage stabilization where moderate TC is acceptable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 8.02 V to 8.36 V at IZ = 5 mA - defines stable regulation point for biasing and reference applications |
| Dynamic Resistance rd | 5.0 Ω - determines output impedance and load regulation sensitivity in shunt configuration |
| Reverse Current IR | ≤2 μA at VR = 5.0 V - ensures minimal quiescent power loss in standby or high-impedance sensing nodes |
| Power Dissipation Pd | 200 mW - sets maximum continuous power handling before thermal shutdown or degradation |
| Junction Temperature Tj | 150°C - defines upper thermal limit for reliable long-term operation in enclosed environments |
| Package | MPAK (JEITA code PLSP0003ZC-A) - 3-pin SMT package with 1.0 mm × 1.3 mm footprint for high-density PCB layouts |
| Zener Grade | B2 - tighter tolerance than B1/B3 variants, enabling improved accuracy in calibrated references |
Pinout & Package
Package: MPAK (PLSP0003ZC-A), 3-terminal surface-mount package with 1.0 mm × 1.3 mm body, 0.55 mm terminal pitch, and 0.35–0.5 mm lead width. Pin 1 is NC (no connection), Pin 2 is Anode, Pin 3 is Cathode - top-view orientation as shown in datasheet Figure "Pin Arrangement".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connection (NC) | Electrically isolated; must not be soldered or routed to avoid parasitic coupling or mechanical stress |
| 2 | Anode | Connected to lower-potential node (e.g., ground or common return) in shunt regulation configuration |
| 3 | Cathode | Connected to higher-potential input rail; conducts current to maintain regulated VZ across load |
Key Features
| Feature | Design Value |
|---|---|
| Zener voltage grade B2 | 8.02–8.36 V tolerance band enables ±2.1% regulation accuracy without external trimming |
| Low dynamic resistance | 5.0 Ω minimizes output voltage shift under load transients in feedback or reference paths |
| MPAK surface-mount package | Compact 1.0 × 1.3 mm outline supports automated placement and high board density in portable instrumentation |
| 150°C junction rating | Enables deployment in thermally demanding environments such as motor drive control boards or industrial PLC I/O modules |
| Pulse-tested characterization | All electrical specs validated using 40 ms pulses - ensures reliability under short-duration surge conditions |
Applications
| Industrial Sensor Signal Conditioning | Microcontroller Reference Voltage Source |
|---|---|
Use Scenario: Stabilizing excitation voltage for resistive bridge sensors (e.g., strain gauges, RTDs) in factory-floor monitoring systems. IC Role / Device Role / Timing Role: Shunt voltage reference providing fixed 8.2 V bias to sensor bridges independent of supply ripple. Use Value: Maintains measurement linearity and offset stability despite ±10% input rail variation due to low rd and tight VZ tolerance. |
Use Scenario: Supplying precise reference voltage to ADCs or internal voltage monitors in Cortex-M0+ based edge controllers. IC Role / Device Role / Timing Role: Passive two-terminal reference element establishing known potential for analog-to-digital conversion thresholds. Use Value: Enables <1 LSB gain error in 12-bit ADCs via sub-2 μA leakage and 5 Ω output impedance, reducing need for active buffering. |
| Overvoltage Clamp in CAN Transceiver Bias Rails | Low-Power Analog Front-End Protection |
Use Scenario: Clamping VCC rail of ISO 11898-2 compliant CAN transceivers during ESD or load dump events. IC Role / Device Role / Timing Role: Fast-reacting shunt protector diverting transient energy away from sensitive PHY circuitry. Use Value: Responds within nanoseconds to >12 V surges while limiting clamped voltage to ≤8.4 V - preserving transceiver integrity without crowbar action. |
Use Scenario: Protecting op-amp inputs and ADC front-ends in battery-powered environmental data loggers. IC Role / Device Role / Timing Role: Low-leakage voltage limiter preventing input stage saturation during sensor hot-plug or cable ESD. Use Value: Adds <2 μA standby current penalty while holding input nodes at safe potentials - critical for multi-year coin-cell operation. |
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-C8V2LT1G | Same nominal VZ (8.2 V), but ±5% tolerance (BZ grade), 15 Ω rd, SOT-23 package (larger footprint) | Higher dynamic impedance reduces regulation fidelity in precision references; suitable only for coarse clamping | Prefer HZM8.2NB2TL-E where <3% VZ drift or low-rd response is required |
| MMSZ5236BT1G | 8.2 V nominal, ±5% tolerance, 7 Ω rd, SOD-123 package, 500 mW Pd | Higher power rating allows greater surge handling but larger size and looser tolerance compromise board space and accuracy | Choose HZM8.2NB2TL-E for compact, high-accuracy designs; select MMSZ5236BT1G only if >200 mW pulse dissipation is mandatory |
Compared with BZX84-C8V2LT1G and MMSZ5236BT1G, the HZM8.2NB2TL-E offers superior voltage accuracy (B2 grade vs. ±5%), lower dynamic resistance (5.0 Ω vs. 7–15 Ω), and smallest footprint (MPAK vs. SOT-23/SOD-123), making it optimal for miniaturized, high-fidelity analog subsystems where regulation stability directly impacts measurement repeatability.
Availability
HZM8.2NB2TL-E is available at Aetrix Electronics and suitable for industrial sensor interfaces, microcontroller reference circuits, and low-power analog front-end protection requiring stable component supply, consistent B2-grade parametric performance, and RoHS-compliant MPAK packaging.
Supply support for HZM8.2NB2TL-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 power devices, and timing solutions for industrial, automotive, and infrastructure markets.
The HZM-N Series is part of Renesas' discrete Zener diode portfolio, engineered specifically for high-accuracy voltage stabilization in space-constrained, thermally stable applications - emphasizing tight grading, low dynamic resistance, and robust MPAK packaging for modern SMT assembly.
FAQ
What is the exact zener voltage range for HZM8.2NB2TL-E at 5 mA test current?
The HZM8.2NB2TL-E has a guaranteed zener voltage range of 8.02 V to 8.36 V when tested at IZ = 5 mA and Ta = 25°C. This B2-grade specification reflects ±2.1% tolerance around the nominal 8.2 V value, confirmed in the "Electrical Characteristics" table on page 3 of R07DS0358EJ0600 Rev.6.00. The HZM8.2NB2TL-E maintains this range across its qualified operating temperature span without recalibration.
Is Pin 1 of HZM8.2NB2TL-E electrically connected or functional?
No - Pin 1 of the HZM8.2NB2TL-E is designated NC (No Connection) and is electrically isolated from all internal circuitry. As shown in the "Pin Arrangement" diagram on page 1 of the datasheet, only Pins 2 (Anode) and 3 (Cathode) are active terminals. PCB layout must treat Pin 1 as a mechanical dummy pad; soldering or routing to it may induce stress or parasitic coupling affecting HZM8.2NB2TL-E regulation stability.
What is the maximum allowable reverse voltage before significant leakage occurs in HZM8.2NB2TL-E?
Per the "Electrical Characteristics" table, the HZM8.2NB2TL-E guarantees reverse current IR ≤2 μA when reverse voltage VR is applied up to 5.0 V. Beyond this, leakage rises nonlinearly - at VR = 7.0 V, typical IR exceeds 10 μA. For reliable low-leakage operation, design circuits to ensure VR never exceeds 5.0 V unless transient clamping is the explicit intent, in which case the HZM8.2NB2TL-E's 8.2 V zener action dominates.
Can HZM8.2NB2TL-E replace standard 1N4737A Zener diodes in existing designs?
No - the HZM8.2NB2TL-E is not a drop-in replacement for 1N4737A due to fundamental differences: HZM8.2NB2TL-E uses a 3-pin MPAK package with Pin 1 (NC), whereas 1N4737A is a 2-pin DO-41 axial device. Additionally, HZM8.2NB2TL-E has tighter B2-grade tolerance (±2.1%) versus 1N4737A's ±5%, and lower dynamic resistance (5.0 Ω vs. ~7 Ω). Board redesign and layout adaptation are required to use HZM8.2NB2TL-E in place of 1N4737A.
Does HZM8.2NB2TL-E meet RoHS and REACH compliance requirements?
Yes - the HZM8.2NB2TL-E is RoHS-compliant and REACH-conformant, as confirmed by Renesas' public environmental documentation and product change notifications. The MPAK package contains no lead, mercury, cadmium, hexavalent chromium, PBB, or PBDE substances above threshold limits. Full compliance data for HZM8.2NB2TL-E is accessible via Renesas' Material Declaration Portal using the part number and lot traceability.
HZM8.2NB2TL-E Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- -
HZM8.2NB2TL-E FAQ
1.How can I place an order for HZM8.2NB2TL-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZM8.2NB2TL-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 HZM8.2NB2TL-E reliable?
The price and inventory of HZM8.2NB2TL-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZM8.2NB2TL-E is usually 5 days.
3.What payment methods are accepted for HZM8.2NB2TL-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZM8.2NB2TL-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZM8.2NB2TL-E?
HZM8.2NB2TL-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZM8.2NB2TL-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 HZM8.2NB2TL-E?
For technical support, including HZM8.2NB2TL-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZM8.2NB2TL-E requirements.
6.How does Aetrix verify that HZM8.2NB2TL-E is sourced from the original manufacturer or authorized distributors?
All HZM8.2NB2TL-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 HZM8.2NB2TL-E meets industry standards.
7.What is the process for return or replacement of HZM8.2NB2TL-E?
All HZM8.2NB2TL-E units undergo pre-shipment inspection (PSI). If there is an issue with HZM8.2NB2TL-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 HZM8.2NB2TL-E part is unused and in its original packaging.
Return procedure for HZM8.2NB2TL-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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