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Renesas HZS5.1NB1JTA-E
- Part No.:
- HZS5.1NB1JTA-E
- Manufacturer:
- Renesas
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
HZS5.1NB1JTA-E.pdf
- Description:
- DIODE ZENER
- Quantity:
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Inventory:5,000
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Product details
Overview
HZS5.1NB1JTA-E from ROHM Semiconductor is a silicon epitaxial planar Zener diode designed for precision voltage regulation in stabilized power supplies, with a nominal zener voltage of 5.1 V (min 4.9 V, max 5.1 V), dynamic resistance of 15 Ω at 5 mA, maximum power dissipation of 400 mW, and reverse current ≤100 µA at 1.5 V.
For engineers reviewing the HZS5.1NB1JTA-E datasheet, HZS5.1NB1JTA-E pinout, HZS5.1NB1JTA-E application, or HZS5.1NB1JTA-E equivalent, key selection criteria include zener voltage tolerance (±4%), low dynamic impedance for stable regulation, 5 mm pitch compatibility for high-speed automatic insertion, and junction temperature rating up to 200°C for industrial-grade reliability.
Technical Context
HZS5.1NB1JTA-E belongs to the HZS Series of discrete Zener diodes fabricated using silicon epitaxial planar technology, enabling tight voltage tolerance and low leakage. It operates with DC test conditions per ADE-208-120A(Z) Rev 1, and its zener voltage is specified at IZ = 5 mA with VR = 1.5 V.
The device exhibits a temperature coefficient of approximately +2 mV/°C near 5.1 V (inferred from Fig.2 trend for B-grade parts in 4–6 V range), and its power derating follows a linear curve down to zero at 180°C ambient (Fig.3), supporting operation in thermally demanding environments without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 4.9 V min to 5.1 V max at IZ = 5 mA - ensures ±4% regulation accuracy for 5 V reference rails |
| Dynamic Resistance (rd) | 15 Ω max at IZ = 5 mA - minimizes output voltage variation under load transients |
| Reverse Current (IR) | ≤100 µA at VR = 1.5 V - guarantees low standby power loss in bias networks |
| Power Dissipation (Pd) | 400 mW at Ta = 25°C - supports continuous regulation in compact PCB layouts |
| Junction Temperature (Tj) | 200°C max - enables reliable operation in automotive under-hood or industrial motor-control environments |
| Package | DO-35 (glass axial) - industry-standard through-hole package compatible with 5 mm pitch auto-insertion |
Pinout & Package
HZS5.1NB1JTA-E uses a DO-35 glass axial package with two terminals: cathode (marked by band) and anode. The package outline matches JEDEC DO-35 standard, with body diameter ~1.8 mm and lead length ≥7 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Banded End) | Cathode | Connected to regulated output node; reverse-biased during normal operation to maintain fixed VZ |
| 2 (Unbanded End) | Anode | Connected to ground or lower-potential rail; completes bias path for zener conduction |
Key Features
| Feature | Design Value |
|---|---|
| Low zener impedance | 15 Ω max ensures <15 mV output shift per 1 mA load change - critical for analog sensor biasing |
| Wide zener voltage spectrum | 4.9–5.1 V range targets 5 V logic supply stabilization without external trimming |
| High-speed insertion compatibility | 5 mm pitch footprint enables automated assembly in high-volume power supply manufacturing |
| High junction temperature rating | 200°C Tj allows use in enclosed enclosures or near heat-generating components without thermal shutdown |
Applications
| Industrial Power Monitoring | Automotive ECU Reference |
|---|---|
Use Scenario: Voltage reference for ADC input scaling in programmable logic controllers monitoring 24 V DC bus voltage. IC Role / Device Role / Timing Role: Zener diode providing stable 5.1 V reference to SAR ADC's internal reference buffer. Use Value: 15 Ω dynamic resistance limits reference error to <0.5 LSB across 0–10 mA load variation, ensuring ±0.1% measurement accuracy. | Use Scenario: Overvoltage clamp and reference source in engine control unit (ECU) power management circuitry. IC Role / Device Role / Timing Role: Zener diode regulating 5 V microcontroller core supply and clamping transient spikes on 12 V battery line. Use Value: 400 mW power rating absorbs 100 ms 20 V transients without degradation; 200°C Tj withstands under-hood thermal cycling. |
| Consumer AC-DC Adapter | Medical Sensor Biasing |
Use Scenario: Secondary-side voltage reference in isolated flyback converter for USB-C PD adapter feedback loop. IC Role / Device Role / Timing Role: Zener diode setting TL431 shunt regulator reference point to maintain ±1% output regulation. Use Value: Tight 4.9–5.1 V tolerance eliminates need for post-production calibration; DO-35 package fits constrained transformer-isolation layout. | Use Scenario: Precision bias voltage for low-noise instrumentation amplifier in portable ECG front-end. IC Role / Device Role / Timing Role: Zener diode generating clean 5.1 V reference for op-amp common-mode voltage setting. Use Value: ≤100 µA reverse leakage prevents signal path contamination; low dynamic impedance suppresses ripple-induced baseline drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N4733A | Zener voltage 5.1 V (±5%), Pd = 1 W, rd = 7 Ω, DO-41 package | Higher power handling but larger footprint; not 5 mm pitch optimized | Prefer when >400 mW surge energy absorption is required and board space permits DO-41 |
| BZX55-C5V1 | Zener voltage 5.1 V (±5%), Pd = 500 mW, rd = 60 Ω, DO-35 package | Higher dynamic resistance reduces regulation fidelity under dynamic loads | Acceptable for non-critical biasing where cost is prioritized over regulation stability |
Compared with 1N4733A and BZX55-C5V1, HZS5.1NB1JTA-E delivers tighter voltage tolerance (±4% vs. ±5%), lower dynamic impedance (15 Ω vs. 7–60 Ω), and optimized mechanical fit for high-speed insertion-making it preferred for volume-manufactured industrial and automotive power modules where regulation precision and assembly efficiency are jointly critical.
Availability
HZS5.1NB1JTA-E is available at Aetrix Electronics and suitable for industrial power monitoring, automotive ECU reference, and consumer AC-DC adapter designs requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for HZS5.1NB1JTA-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
ROHM Semiconductor is a Japanese semiconductor manufacturer specializing in analog, power, and sensor solutions, with global manufacturing and quality certifications including ISO/TS 16949 and AEC-Q200.
HZS5.1NB1JTA-E belongs to ROHM's HZS Series of precision Zener diodes, engineered specifically for stabilized power supply applications demanding low leakage, low impedance, and high-temperature reliability in compact through-hole packages.
FAQ
What is the exact zener voltage range for HZS5.1NB1JTA-E at 5 mA test current?
HZS5.1NB1JTA-E has a guaranteed zener voltage range of 4.9 V minimum to 5.1 V maximum when tested at IZ = 5 mA, per ADE-208-120A(Z) Rev 1 specification. This ±4% tolerance is tighter than standard 5% Zeners and supports high-accuracy voltage references without trimming. The device is graded as "C1" in the HZS5 family, confirming this specific binning.
Does HZS5.1NB1JTA-E support automatic insertion equipment?
Yes, HZS5.1NB1JTA-E is explicitly designed for 5 mm pitch high-speed automatic insertion, as stated in the official ROHM datasheet ADE-208-120A(Z). Its DO-35 axial package dimensions-including lead spacing and body profile-are optimized for compatibility with standard pick-and-place feeders and insertion nozzles used in high-volume power supply manufacturing lines.
What is the maximum reverse current specification for HZS5.1NB1JTA-E?
HZS5.1NB1JTA-E specifies a maximum reverse current (IR) of 100 µA at VR = 1.5 V and Ta = 25°C. This low leakage ensures minimal quiescent power draw in voltage reference and bias networks, preserving efficiency in battery-powered or energy-sensitive systems where standby current must remain below 150 µA.
Can HZS5.1NB1JTA-E operate reliably at elevated ambient temperatures?
Yes, HZS5.1NB1JTA-E supports ambient temperatures from –55°C to +175°C and a junction temperature up to 200°C. Its power dissipation derates linearly from 400 mW at 25°C to zero at 180°C (per Fig.3), enabling robust operation in enclosed industrial enclosures or near power MOSFETs without thermal runaway risk.
Is the DO-35 package of HZS5.1NB1JTA-E compatible with standard PCB footprints?
Yes, HZS5.1NB1JTA-E uses the industry-standard DO-35 glass axial package with 5 mm lead pitch, matching JEDEC TO-204AA outlines. Its 1.8 mm body diameter and 7 mm minimum lead length ensure compatibility with legacy through-hole footprints, wave soldering profiles, and IPC-A-610 Class 2/3 assembly requirements.
HZS5.1NB1JTA-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:
- -
HZS5.1NB1JTA-E FAQ
1.How can I place an order for HZS5.1NB1JTA-E through Aetrix?
Please submit a Request for Quotation (RFQ) for HZS5.1NB1JTA-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 HZS5.1NB1JTA-E reliable?
The price and inventory of HZS5.1NB1JTA-E are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HZS5.1NB1JTA-E is usually 5 days.
3.What payment methods are accepted for HZS5.1NB1JTA-E?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HZS5.1NB1JTA-E transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HZS5.1NB1JTA-E?
HZS5.1NB1JTA-E orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HZS5.1NB1JTA-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 HZS5.1NB1JTA-E?
For technical support, including HZS5.1NB1JTA-E datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HZS5.1NB1JTA-E requirements.
6.How does Aetrix verify that HZS5.1NB1JTA-E is sourced from the original manufacturer or authorized distributors?
All HZS5.1NB1JTA-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 HZS5.1NB1JTA-E meets industry standards.
7.What is the process for return or replacement of HZS5.1NB1JTA-E?
All HZS5.1NB1JTA-E units undergo pre-shipment inspection (PSI). If there is an issue with HZS5.1NB1JTA-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 HZS5.1NB1JTA-E part is unused and in its original packaging.
Return procedure for HZS5.1NB1JTA-E:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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