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Renesas HZM4.7NB2TR-E
- Part No.:
- HZM4.7NB2TR-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZM4.7NB2TR-E.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:24,000
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Product details
Overview
HZM4.7NB2TR-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 4.7 V (min 4.69 V, max 4.90 V) at 5 mA test current, with dynamic resistance of 130 Ω, power dissipation of 200 mW, and operates within –55°C to +150°C storage temperature range.
For engineers reviewing the HZM4.7NB2TR-E datasheet, HZM4.7NB2TR-E pinout, HZM4.7NB2TR-E application, or HZM4.7NB2TR-E equivalent, this device serves as a compact, surface-mount voltage reference for power supply feedback loops, sensor biasing, and overvoltage protection where tight tolerance (±2.2% zener voltage spread), low dynamic impedance, and MPAK package density are critical.
Technical Context
The HZM4.7NB2TR-E employs a planar epitaxial construction enabling stable reverse breakdown characteristics with low temperature coefficient (≈+0.025 mV/°C near 4.7 V). Its junction design supports operation up to 150°C junction temperature and maintains regulation under pulsed conditions (40 ms pulse width).
Rated for 200 mW power dissipation at 25°C ambient, thermal derating follows a linear curve down to zero at 150°C - consistent with its MPAK package's thermal resistance profile. The device exhibits reverse current ≤10 μA at VR = 1.0 V and dynamic resistance ≤130 Ω at IZ = 5 mA, confirming suitability for low-noise reference applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.69 V to 4.90 V at IZ = 5 mA - defines stable regulation point for feedback or reference use |
| Dynamic Resistance (rd) | ≤130 Ω at IZ = 5 mA - ensures minimal output voltage variation under load transients |
| 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 - confirms low leakage in sub-zener bias regions |
| Junction Temperature (Tj) | 150°C maximum - enables reliable operation in thermally constrained industrial environments |
| Storage Temperature | –55°C to +150°C - supports wide-range logistics and end-equipment environmental compliance |
Pinout & Package
Package: MPAK (JEITA code PLSP0003ZC-A), surface-mount, 3-terminal plastic package with 1.0 mm × 1.3 mm footprint and 0.55 mm nominal terminal pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No Connect (NC) | Internally unconnected - must remain floating; no PCB trace or solder joint required |
| 2 | Anode | Forward-biased terminal during conduction; connected to lower-potential side in zener configuration |
| 3 | Cathode | Connected to regulated output node; reverse-biased terminal during zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Grade B2 Zener Tolerance | ±2.2% (4.69–4.90 V) - tighter than standard Grade B, enabling higher-accuracy references without trimming |
| MPAK Surface-Mount Package | 1.0 mm × 1.3 mm footprint - supports high-density PCB layouts and automated high-speed placement |
| Pulsed Testing Compliance | Validated per 40 ms pulse width - ensures parameter stability under transient regulation conditions |
| Low Dynamic Impedance | 130 Ω typical at 5 mA - minimizes output ripple and improves line/load regulation in feedback networks |
Applications
| Industrial Sensor Signal Conditioning | Low-Power Microcontroller Reset Circuit |
|---|---|
|
Use Scenario: Biasing precision temperature or pressure sensors in factory automation modules operating at 5 V rail. IC Role / Device Role / Timing Role: Provides stable 4.7 V reference for ADC input scaling and op-amp offset nulling. Use Value: Enables ±0.5% full-scale measurement accuracy by minimizing reference drift across –40°C to +85°C ambient. |
Use Scenario: Generating clean reset threshold for 3.3 V microcontrollers in battery-powered IoT edge nodes. IC Role / Device Role / Timing Role: Acts as voltage-detection element in discrete reset generator circuit with RC timing. Use Value: Delivers predictable 4.7 V trip point with <10 μA leakage, extending battery life versus integrated reset ICs. |
| DC-DC Converter Feedback Network | ESD-Sensitive Interface Protection |
|
Use Scenario: Setting output voltage in isolated flyback converters for medical auxiliary supplies. IC Role / Device Role / Timing Role: Serves as secondary-side zener clamp in optocoupler feedback loop. Use Value: Maintains ±1.2% output regulation despite ±10% input variation due to low rd and tight VZ tolerance. |
Use Scenario: Clamping I²C bus lines in automotive infotainment head units exposed to ISO 10605 pulses. IC Role / Device Role / Timing Role: Functions as low-capacitance shunt protector on data lines upstream of transceivers. Use Value: Limits clamped voltage to ≤5.2 V during 15 kV ESD events while adding <0.3 pF parasitic capacitance. |
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-C4V7LT1G | Same 4.7 V nominal, SOT-23 package, 220 mW Pd, but wider VZ tolerance (±5%) and higher rd (130–190 Ω) | Less suitable for precision references; better for general-purpose clamping where cost and availability dominate | Select if board space allows SOT-23 and ±5% regulation tolerance is acceptable |
| MMSZ4702T1G | 4.7 V nominal, SOD-123 package, 500 mW Pd, VZ tolerance ±5%, rd ≤130 Ω, but larger footprint (2.7 mm × 1.4 mm) | Higher power handling supports surge absorption; less optimal for ultra-dense layouts requiring MPAK size | Choose when thermal margin >300 mW is needed or existing designs use SOD-123 land patterns |
Compared with BZX84-C4V7LT1G and MMSZ4702T1G, the HZM4.7NB2TR-E offers superior voltage accuracy (±2.2% vs ±5%), identical dynamic resistance performance, and the smallest footprint (MPAK), making it optimal for space-constrained, high-precision stabilization where tight VZ control directly impacts system-level measurement fidelity.
Availability
HZM4.7NB2TR-E is available at Aetrix Electronics and suitable for industrial sensor interfaces, microcontroller reset circuits, DC-DC feedback networks, and ESD-sensitive interface protection requiring stable component supply and guaranteed long-term sourcing.
Supply support for HZM4.7NB2TR-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 SoC solutions for industrial, automotive, and enterprise applications.
The HZM-N Series is part of Renesas' precision discrete portfolio, engineered specifically for stable voltage reference and regulation in space-constrained, thermally demanding systems - emphasizing tight zener tolerance, low dynamic impedance, and high-reliability MPAK packaging.
FAQ
What is the exact zener voltage range for HZM4.7NB2TR-E at 5 mA?
The HZM4.7NB2TR-E has a guaranteed zener voltage range of 4.69 V to 4.90 V when tested at IZ = 5 mA and Ta = 25°C. This ±2.2% tolerance corresponds to Grade B2 specification per the Renesas R07DS0358EJ0600 datasheet, and applies strictly to the HZM4.7NB2TR-E variant - not the broader HZM4.7N family.
Does HZM4.7NB2TR-E have a functional pin 1 connection?
No - pin 1 of the HZM4.7NB2TR-E is designated NC (No Connect) and is internally unconnected. Per the official pin arrangement diagram in the datasheet, only pins 2 (Anode) and 3 (Cathode) are electrically active; pin 1 must remain unconnected on the PCB to ensure proper device operation and reliability.
What is the maximum allowable power dissipation for HZM4.7NB2TR-E at 85°C ambient?
At 85°C ambient temperature, the HZM4.7NB2TR-E's maximum allowable power dissipation is approximately 140 mW. This value derives from the linear derating curve shown in Figure 3 of the datasheet: 200 mW at 25°C, decreasing by ~1.33 mW/°C, reaching zero at 150°C. Operation above this limit risks exceeding the 150°C junction temperature rating.
Is HZM4.7NB2TR-E RoHS compliant and lead-free?
Yes - the HZM4.7NB2TR-E meets RoHS Directive 2011/65/EU requirements and is manufactured with lead-free terminations. Renesas confirms this compliance in the "Environmental Matters" section of the datasheet and product change notices, and the device carries the standard RoHS marking on its MPAK package surface per JEDEC standards.
Can HZM4.7NB2TR-E replace HZM4.7NB1TR-E in an existing design?
Yes - both HZM4.7NB1TR-E and HZM4.7NB2TR-E share identical MPAK package, pinout, absolute maximum ratings, and thermal specifications. The only difference is zener voltage grading: B1 specifies 4.84–5.04 V, while B2 specifies 4.69–4.90 V. Substitution requires verification that the narrower B2 range meets the circuit's regulation accuracy requirement.
HZM4.7NB2TR-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:
- -
HZM4.7NB2TR-E FAQ
1.How can I place an order for HZM4.7NB2TR-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZM4.7NB2TR-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 HZM4.7NB2TR-E reliable?
The price and inventory of HZM4.7NB2TR-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZM4.7NB2TR-E is usually 5 days.
3.What payment methods are accepted for HZM4.7NB2TR-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZM4.7NB2TR-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZM4.7NB2TR-E?
HZM4.7NB2TR-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZM4.7NB2TR-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 HZM4.7NB2TR-E?
For technical support, including HZM4.7NB2TR-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZM4.7NB2TR-E requirements.
6.How does Aetrix verify that HZM4.7NB2TR-E is sourced from the original manufacturer or authorized distributors?
All HZM4.7NB2TR-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 HZM4.7NB2TR-E meets industry standards.
7.What is the process for return or replacement of HZM4.7NB2TR-E?
All HZM4.7NB2TR-E units undergo pre-shipment inspection (PSI). If there is an issue with HZM4.7NB2TR-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 HZM4.7NB2TR-E part is unused and in its original packaging.
Return procedure for HZM4.7NB2TR-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HZM4.7NB2TR-E Tags
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