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onsemi 1N5954BRLG
- Part No.:
- 1N5954BRLG
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
1N5954BRLG.pdf
- Description:
- DIODE ZENER
- Quantity:
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- Shipping:
Inventory:3,705
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Product details
Overview
1N5954BRLG from ON Semiconductor is a 3 W, 160 V nominal Zener voltage regulator diode in DO−41 axial package, rated for ±5% tolerance, 2.3 mA test current (IZT), and 121.6 A maximum DC zener current (IZM), used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the 1N5954BRLG datasheet, pinout, applications, or equivalent options, key selection criteria include zener voltage stability at 75°C lead temperature, surge capability of 98 W @ 1 ms, ESD rating >16 kV HBM, and compatibility with Pb−free reflow soldering at 260°C for 10 seconds.
Technical Context
This device operates as a silicon-oxide passivated junction Zener diode optimized for stable reverse-biased regulation. It delivers specified VZ = 152–168 V at IZT = 2.3 mA, with ZZT = 5.0 Ω max and ZZK = 2000 Ω max at IZK = 0.25 mA, ensuring low dynamic impedance across its operating range.
Thermal design relies on lead-to-ambient conduction (primary path through cathode lead), with steady-state dissipation derated linearly above TL = 75°C (24 mW/°C) and TA = 50°C (6.67 mW/°C). Junction temperature rise is validated via transient thermal resistance curves for L = 3/8″ leads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 152–168 V @ IZT = 2.3 mA - defines regulation band for high-voltage reference circuits |
| Power Dissipation (PD) | 3 W @ TL = 75°C - supports continuous operation in compact heatsink-free designs |
| Zener Impedance (ZZT) | 5.0 Ω max @ IZT - ensures minimal output voltage variation under load transients |
| Surge Rating | 98 W @ 1 ms - enables robust handling of short-duration overvoltage events |
| ESD Rating | Class 3 (>16 kV) HBM - provides built-in electrostatic discharge immunity during assembly |
| Operating Temp | −65°C to +200°C - suitable for extended industrial and automotive under-hood environments |
| Leakage Current | 0.25 μA max @ VR = 121.6 V - guarantees low standby power loss in high-impedance bias networks |
Pinout & Package
Package: DO−41 axial-lead plastic case (Case 59−10), void-free thermosetting material, cathode indicated by polarity band, lead diameter uncontrolled within F dimension (max 1.27 mm), lead length standard 3/8″ for thermal rating compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-bias anode connection point | Connected to regulated voltage node; must be held at higher potential than anode for conduction |
| Anode (unbanded end) | Reverse-bias cathode return path | Typically tied to ground or lower-potential rail; carries full zener current during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Guaranteed 152–168 V band eliminates need for post-production trimming in fixed-reference designs |
| Surge-rated construction | Withstands 98 W transient pulses without degradation-critical for input-stage protection in AC/DC converters |
| Pb−free compatible packaging | Meets RoHS and JEDEC J-STD-020 reflow requirements (260°C, 10 s) without reliability compromise |
| Low leakage at high VR | 0.25 μA max @ 121.6 V enables use in ultra-low-power bias networks and high-impedance sensing circuits |
| Wide temperature range | −65°C to +200°C operation supports deployment in engine control units and downhole instrumentation |
Applications
| Industrial Power Supply Feedback | Telecom Line Card Protection |
|---|---|
|
Use Scenario: Regulating output voltage in isolated flyback converters with optocoupler feedback. IC Role / Device Role / Timing Role: Precision voltage reference establishing error amplifier threshold. Use Value: Tight 160 V ±5% tolerance and 5.0 Ω ZZT ensure <±0.5% output regulation accuracy across line/load variations. |
Use Scenario: Clamping induced surges on -48 V telecom distribution lines. IC Role / Device Role / Timing Role: Overvoltage shunt protector absorbing transient energy before downstream ICs. Use Value: 98 W @ 1 ms surge rating and 16 kV HBM ESD immunity prevent latch-up or failure during lightning-induced spikes. |
| Automotive Battery Monitoring | Test Equipment Reference Source |
|
Use Scenario: Providing stable reference for microcontroller ADC measurement of 12 V battery voltage scaled to 160 V range. IC Role / Device Role / Timing Role: High-voltage scaling reference enabling accurate low-side sensing. Use Value: −65°C to +200°C operating range and 0.25 μA leakage maintain accuracy in under-hood temperature extremes. |
Use Scenario: Generating calibrated high-voltage reference in programmable DC loads and source-measure units. IC Role / Device Role / Timing Role: Primary voltage standard traceable to factory-tested VZ specification. Use Value: Guaranteed 152–168 V band and 2.3 mA IZT test condition enable repeatable calibration across production units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5954BRL | Same electrical specs; non-Pb−free version with SnPb lead finish | Not compliant with RoHS or modern reflow profiles requiring Pb−free solder | Select only if legacy manufacturing process mandates SnPb soldering and exemption documentation is approved |
| BZX85C150 | 150 V nominal, 1.3 W rating, DO-41, ±5% tolerance, higher ZZT (15 Ω) | Limited to lower-power applications due to 1.3 W PD and reduced surge margin | Acceptable for cost-sensitive, low-duty-cycle references where 160 V exactness and 3 W headroom are not required |
Compared with 1N5954BRLG, the 1N5954BRL lacks Pb−free compliance and requires SnPb process validation, while BZX85C150 trades 10 V lower nominal voltage, 1.7 W less power handling, and higher dynamic impedance-making it unsuitable for high-stability or high-surge industrial designs relying on 1N5954BRLG's full 3 W and 98 W ratings.
Availability
1N5954BRLG is available at Aetrix Electronics and suitable for industrial power supplies, telecom infrastructure protection, and automotive battery monitoring systems requiring stable component supply with full RoHS compliance and long-term lifecycle support.
Supply support for 1N5954BRLG 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
ON Semiconductor (now onsemi) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensor, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The 1N5954BRLG belongs to the 1N5913B Series of 3 W Zener regulators designed specifically for high-reliability voltage reference and overvoltage clamping in harsh-environment power systems.
FAQ
What is the guaranteed Zener voltage range for 1N5954BRLG?
The 1N5954BRLG has a guaranteed Zener voltage range of 152 V to 168 V when measured at IZT = 2.3 mA and lead temperature TL = 30°C ±1°C, per ON Semiconductor's Rev. 5 datasheet. This ±5% tolerance band is fully tested and specified, making 1N5954BRLG suitable for applications demanding precise high-voltage referencing without external trimming.
Can 1N5954BRLG be used in Pb−free reflow soldering processes?
Yes, 1N5954BRLG is explicitly qualified for Pb−free reflow soldering with a maximum lead temperature of 260°C at 1/16″ from the case for 10 seconds. Its "G" suffix denotes Pb−free packaging compliance per JEDEC J-STD-020, and the device meets RoHS Directive 2011/65/EU requirements-ensuring reliable assembly in modern SMT lines without lead contamination risk.
What is the maximum DC zener current (IZM) rating for 1N5954BRLG?
The 1N5954BRLG has a maximum DC zener current (IZM) rating of 121.6 A, derived from its 3 W power rating and nominal 160 V Zener voltage (IZM = PD / VZ = 3 W / 160 V ≈ 121.6 A). This value is confirmed in the Electrical Characteristics table and reflects the highest continuous current the device can safely regulate without exceeding thermal limits at TL = 75°C.
How does the surge rating of 1N5954BRLG compare to its steady-state power dissipation?
The 1N5954BRLG sustains 98 W for 1 ms in nonrepetitive surge conditions-over 32× its 3 W steady-state rating-due to thermal mass limiting junction temperature rise during short pulses. This capability is validated in Figure 3 of the datasheet and enables robust transient suppression in power input stages where 1N5954BRLG absorbs energy that would otherwise damage downstream components.
Is the 1N5954BRLG suitable for automotive under-hood applications?
Yes, the 1N5954BRLG is rated for −65°C to +200°C operating and storage temperatures, exceeding typical automotive under-hood requirements (−40°C to +150°C). Its silicon-oxide passivated junction, 16 kV HBM ESD rating, and DO−41 mechanical robustness make 1N5954BRLG appropriate for battery monitoring, alternator regulation, and engine control unit voltage references where thermal and environmental resilience are critical.
1N5954BRLG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- 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:
- -
1N5954BRLG FAQ
1.How can I place an order for 1N5954BRLG through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5954BRLG 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 1N5954BRLG reliable?
The price and inventory of 1N5954BRLG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5954BRLG is usually 5 days.
3.What payment methods are accepted for 1N5954BRLG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5954BRLG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5954BRLG?
1N5954BRLG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5954BRLG 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 1N5954BRLG?
For technical support, including 1N5954BRLG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5954BRLG requirements.
6.How does Aetrix verify that 1N5954BRLG is sourced from the original manufacturer or authorized distributors?
All 1N5954BRLG 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 1N5954BRLG meets industry standards.
7.What is the process for return or replacement of 1N5954BRLG?
All 1N5954BRLG units undergo pre-shipment inspection (PSI). If there is an issue with 1N5954BRLG, 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 1N5954BRLG part is unused and in its original packaging.
Return procedure for 1N5954BRLG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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