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onsemi 1N5954BRL
- Part No.:
- 1N5954BRL
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- -
- Datasheet:
-
1N5954BRL.pdf
- Description:
- DIODE ZENER
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
1N5954BRL from ON Semiconductor is a 3 W, 160 V nominal Zener voltage regulator diode in DO−41 axial plastic package, rated for 700 mA maximum DC zener current, 2.3 Ω maximum zener impedance at 700 mA test current, and 0.25 μA reverse leakage at 121.6 V breakdown voltage. It delivers stable voltage reference in power supply overvoltage protection circuits.
For engineers reviewing the 1N5954BRL datasheet, pinout, applications, or equivalent options, key selection criteria include its ±5% tolerance (B-suffix), 98 W surge rating at 1 ms, Class 3 ESD immunity (>16 kV HBM), 200°C max junction temperature, and Pb-free tape-and-reel packaging (6000 units/reel).
Technical Context
This device operates as a silicon-oxide passivated Zener diode with a precisely controlled reverse breakdown characteristic. Its 160 V nominal zener voltage is guaranteed at IZT = 700 mA with TL = 30°C, and it maintains regulation across −65°C to +200°C operating range.
The 1N5954BRL exhibits low dynamic impedance (2.3 Ω @ 700 mA) and tight leakage control (0.25 μA @ VR = 121.6 V), enabling accurate voltage clamping in high-voltage transient suppression and reference circuits where thermal stability and long-term reliability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 152 V min / 160 V nom / 168 V max @ IZT = 700 mA - defines precise clamping threshold under regulated DC conditions |
| Max Power Dissipation | 3 W @ TL = 75°C - supports continuous operation in compact heatsink-limited designs |
| Zener Impedance | 2.3 Ω max @ IZT = 700 mA - ensures minimal voltage deviation during load current transients |
| Reverse Leakage | 0.25 μA max @ VR = 121.6 V - guarantees negligible standby current in high-impedance bias networks |
| Surge Rating | 98 W @ 1 ms - withstands short-duration line surges without degradation |
| ESD Rating | Class 3 (>16 kV) per HBM - survives handling and board-level electrostatic discharge events |
| Operating Temp | −65°C to +200°C - suitable for under-hood automotive, industrial power, and aerospace environments |
Pinout & Package
Package: DO−41 (Case 59−10), axial-lead, void-free transfer-molded thermosetting plastic. Cathode indicated by polarity band; anode is unmarked lead. Mounting position unrestricted.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener breakdown terminal | Connected to higher-potential node; reverse-biased to conduct and clamp voltage above VZ |
| Anode (unbanded end) | Reference/return terminal | Connected to circuit ground or lower-potential rail; completes conduction path during regulation |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Guaranteed 152–168 V range enables predictable overvoltage trip points without calibration |
| Low zener impedance (2.3 Ω) | Minimizes output voltage shift under varying load currents in precision reference applications |
| High surge capability (98 W @ 1 ms) | Protects downstream circuitry against lightning-induced or switching-induced transients |
| Pb-free tape-and-reel packaging | Enables automated SMT-compatible assembly with RoHS-compliant supply chain traceability |
| 200°C max junction temperature | Supports operation in high-ambient environments such as motor drives and power converters |
Applications
| Industrial Power Supply Protection | Automotive Battery Monitoring |
|---|---|
Use Scenario: Clamping transient spikes on 12 V/24 V battery rails during load dump or alternator switching. IC Role / Device Role / Timing Role: Standalone voltage clamp protecting microcontroller inputs and sensor interfaces. Use Value: Prevents latch-up or damage to 5 V logic rails using only passive components and no external biasing. |
Use Scenario: Providing stable reference for analog-to-digital conversion of battery voltage in engine control units. IC Role / Device Role / Timing Role: Precision voltage reference source for ADC input scaling networks. Use Value: Enables <1% full-scale error in battery SOC estimation over −40°C to +125°C ambient. |
| Telecom Line Surge Suppression | High-Voltage DC Link Monitoring |
Use Scenario: Protecting Ethernet PHY interface ICs from induced surges on PoE-powered lines. IC Role / Device Role / Timing Role: Primary overvoltage shunt element in front-end protection stage. Use Value: Absorbs up to 98 W for 1 ms without failure, meeting GR-1089-CORE Level 3 surge requirements. |
Use Scenario: Voltage scaling and fault detection in 300–400 V DC link circuits for solar inverters. IC Role / Device Role / Timing Role: High-voltage divider reference in isolated feedback paths. Use Value: Maintains <0.5% ratio accuracy over temperature due to matched TC characteristics in series string configurations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5954B | Same electrical specs but in bulk box (2000 units), not tape-and-reel; identical DO−41 package and marking | No reel handling support; unsuitable for automated pick-and-place | Select 1N5954BRL when requiring SMT-compatible packaging and volume production logistics |
| BZX85C160 | 160 V, 1.3 W rating, 10 Ω ZZT, TO-204AA (DO-41) package; lower power and higher impedance | Limited to low-power reference use; cannot sustain 700 mA continuous or 98 W surge | Choose BZX85C160 only for cost-sensitive, low-current biasing where 3 W headroom is unnecessary |
Compared with 1N5954B (bulk) and BZX85C160 (1.3 W), the 1N5954BRL uniquely combines 3 W dissipation, 2.3 Ω impedance, and Pb-free tape-and-reel delivery-making it the only option for high-reliability, high-volume, high-power Zener regulation in automotive and industrial systems.
Availability
1N5954BRL is available at Aetrix Electronics and suitable for industrial power supply protection, automotive battery monitoring, telecom surge suppression, and high-voltage DC link monitoring requiring stable component supply and full RoHS compliance.
Supply support for 1N5954BRL 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, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The 1N5954BRL belongs to the 1N5913B Series of 3 W Zener regulators designed for robust voltage reference and overvoltage protection in harsh-environment power systems where reliability, surge resilience, and thermal stability are mandatory.
FAQ
What is the Zener voltage tolerance of the 1N5954BRL?
The 1N5954BRL has a ±5% Zener voltage tolerance, meaning its nominal 160 V rating spans 152 V (minimum) to 168 V (maximum) at IZT = 700 mA and TL = 30°C. This tight tolerance ensures consistent clamping behavior across production lots and simplifies design margining for overvoltage protection circuits without requiring post-production trimming.
Does the 1N5954BRL support automated assembly?
Yes, the 1N5954BRL is supplied in Pb-free tape-and-reel packaging (6000 units per reel), fully compatible with standard SMT pick-and-place equipment. Its DO−41 axial package is oriented consistently per onsemi's Tape and Reel Packaging Specification BRD8011/D, enabling reliable feeding and placement in high-throughput manufacturing lines.
What is the maximum surge power the 1N5954BRL can handle?
The 1N5954BRL is rated for 98 W maximum nonrepetitive surge power at 1 ms pulse width, as defined in Figure 3 of the official datasheet. This capability allows it to absorb transient energy from load dump events, inductive switching spikes, or lightning-induced surges without parametric shift or catastrophic failure-critical for automotive and industrial power interface protection.
How does the 1N5954BRL perform at elevated temperatures?
The 1N5954BRL maintains full functionality from −65°C to +200°C junction temperature. Its Zener voltage exhibits a known positive temperature coefficient above ~6 V, and the datasheet provides TC curves (Figure 6) confirming stable regulation up to 200°C. Derating is required above 75°C lead temperature-24 mW/°C reduction applies beyond that point.
Is the 1N5954BRL RoHS compliant and halogen-free?
Yes, the 1N5954BRL carries the "G" suffix indicating Pb-free construction and full compliance with RoHS Directive 2011/65/EU. ON Semiconductor confirms the device meets JEDEC JS709B halogen-free requirements, with chlorine and bromine content below 900 ppm each and total halogens under 1500 ppm-ensuring environmental safety and solderability in modern reflow processes.
1N5954BRL 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:
- -
1N5954BRL FAQ
1.How can I place an order for 1N5954BRL through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5954BRL 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 1N5954BRL reliable?
The price and inventory of 1N5954BRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5954BRL is usually 5 days.
3.What payment methods are accepted for 1N5954BRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5954BRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5954BRL?
1N5954BRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5954BRL 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 1N5954BRL?
For technical support, including 1N5954BRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5954BRL requirements.
6.How does Aetrix verify that 1N5954BRL is sourced from the original manufacturer or authorized distributors?
All 1N5954BRL 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 1N5954BRL meets industry standards.
7.What is the process for return or replacement of 1N5954BRL?
All 1N5954BRL units undergo pre-shipment inspection (PSI). If there is an issue with 1N5954BRL, 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 1N5954BRL part is unused and in its original packaging.
Return procedure for 1N5954BRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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