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onsemi 1N5934BRL
- Part No.:
- 1N5934BRL
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N5934BRL.pdf
- Description:
- DIODE ZENER 24V 3W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:5,851
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Product details
Overview
1N5934BRL from onsemi is a 3 W, 24 V ±5% Zener diode in DO-41 axial package, designed for precision voltage regulation and overvoltage protection in DC power rails. It delivers 18.2 mA maximum DC zener current, 15.6 Ω dynamic impedance at 19 mA test current, and supports surge power up to 98 W for 1 ms pulses. Used in industrial power supply feedback loops and analog reference stabilization.
For engineers reviewing the 1N5934BRL datasheet, pinout, applications, or equivalent options, key selection criteria include Zener voltage tolerance (±5%), thermal derating above 75°C, cathode-band polarity marking, and Pb-free tape-and-reel packaging compliance for automated assembly.
Technical Context
This device operates as a silicon-oxide passivated junction Zener regulator with stable reverse breakdown behavior across −65°C to +200°C. Its 24 V nominal Zener voltage is guaranteed at 30°C lead temperature with 19 mA test current (IZT), and exhibits 0.25 μA max leakage at 18.2 V (VR).
The 1N5934BRL features Class 3 ESD robustness (>16 kV HBM) and transient surge capability defined by Figure 3 in the datasheet. Thermal resistance from junction-to-lead is characterized for 3/8″ lead length, enabling accurate TJ estimation under pulsed or continuous dissipation conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 22.8 V min / 24 V nom / 25.2 V max at IZT = 19 mA - defines regulated output voltage window under standard test conditions |
| Zener Impedance (ZZT) | 15.6 Ω max at IZT = 19 mA - determines regulation accuracy under load current variation |
| Max DC Zener Current (IZM) | 62 mA - sets absolute upper limit for continuous reverse conduction without degradation |
| Surge Power Rating | 98 W @ 1 ms non-repetitive - enables transient overvoltage clamping in power supply input stages |
| ESD Rating | Class 3 (>16 kV) per Human Body Model - ensures handling robustness during PCB assembly |
| Operating Temperature | −65°C to +200°C - supports deployment in automotive engine compartments and industrial control enclosures |
| Package | DO-41 (Case 59), axial lead, Pb-free - compatible with standard through-hole reflow and wave soldering processes |
Pinout & Package
Package: DO-41 axial-leaded plastic case (Case 59), void-free thermosetting material with corrosion-resistant leads and cathode polarity band. Mounting position unrestricted; max soldering temperature 260°C at 1/16″ from case for 10 seconds.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased Zener terminal | Connected to higher-potential node in regulation circuit; voltage referenced to this point |
| Anode | Forward-biased terminal / reference ground | Typically tied to system ground or lower-voltage rail; completes bias path for Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| ±5% Zener voltage tolerance | Guarantees tight regulation band (22.8–25.2 V) without post-manufacturing sorting or trimming |
| 3 W steady-state power rating @ TL = 75°C | Enables use in medium-power shunt regulators without heatsinking under typical ambient conditions |
| Surge rating of 98 W @ 1 ms | Provides robust transient suppression for inductive kickback or lightning-induced surges in 24 V systems |
| Pb-free tape-and-reel packaging (6000/reel) | Supports high-volume SMT-compatible pick-and-place assembly while meeting RoHS compliance requirements |
| ESD rating >16 kV (HBM) | Eliminates need for additional ESD protection during board handling and functional testing |
Applications
| Industrial Power Supply Feedback | Automotive Battery Monitoring |
|---|---|
Use Scenario: Stabilizing error amplifier reference in isolated 24 V DC-DC converter feedback network. IC Role / Device Role / Timing Role: Zener reference element providing precise 24 V threshold for optocoupler-driven regulation loop. Use Value: Maintains ±1% output voltage accuracy over temperature due to low dynamic impedance (15.6 Ω) and stable 24 V nominal Zener point. |
Use Scenario: Overvoltage clamp on 24 V battery-sensed line in commercial vehicle telematics module. IC Role / Device Role / Timing Role: Passive protection device limiting sensed voltage to safe levels for microcontroller ADC input. Use Value: Absorbs 98 W surge energy for 1 ms without failure, preventing ADC damage during load dump events. |
| Programmable Logic Controller I/O Protection | Analog Sensor Reference Stabilization |
Use Scenario: Input protection for 24 V digital input channel exposed to field wiring transients. IC Role / Device Role / Timing Role: Shunt limiter clamping induced spikes before they reach isolation barrier or input conditioning circuitry. Use Value: Withstands repeated 1 ms surges up to 98 W while maintaining <0.25 μA leakage at 18.2 V, ensuring signal integrity during normal operation. |
Use Scenario: Providing stable 24 V reference for precision 4–20 mA transmitter current loop calibration. IC Role / Device Role / Timing Role: Voltage reference source for DAC output stage and current sense amplifier biasing. Use Value: Delivers <±0.5% drift over −40°C to +85°C operating range due to silicon-oxide passivated junction and controlled thermal design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5934B (tube, DO-41) | Identical electrical specs; differs only in packaging (2000/unit box vs. 6000/reel) | No difference in circuit function or layout; same thermal and electrical performance | Select 1N5934BRL for automated SMT lines requiring tape-and-reel; choose 1N5934B for manual prototyping or low-volume repair |
| MMSZ5245B (SOD-123) | Same 24 V Zener voltage but 500 mW rating, surface-mount package, higher ZZT (33 Ω) | Not suitable for 3 W continuous dissipation; limited to low-power bias/reference roles | Use MMSZ5245B only in space-constrained, low-power designs where 62 mA IZM and 98 W surge capability are not required |
Compared with 1N5934B (tube) and MMSZ5245B (SMD), the 1N5934BRL offers full 3 W power handling and tape-and-reel compatibility-making it the sole choice for high-reliability, high-volume 24 V shunt regulation where surge immunity and automated assembly are mandatory.
Availability
1N5934BRL is available at Aetrix Electronics and suitable for industrial power supplies, automotive battery monitoring systems, and programmable logic controller I/O protection requiring stable component supply and RoHS-compliant packaging.
Supply support for 1N5934BRL 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
onsemi (Semiconductor Components Industries, LLC) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The 1N5934BRL belongs to the 1N5913B Series of 3 W Zener regulators, engineered for high-reliability voltage reference and overvoltage protection in harsh-environment power systems where stability, surge resilience, and long-term parametric consistency are critical.
FAQ
What is the Zener voltage tolerance of the 1N5934BRL?
The 1N5934BRL has a Zener voltage tolerance of ±5%, specified as 22.8 V minimum, 24 V nominal, and 25.2 V maximum at 19 mA test current (IZT) and 30°C lead temperature. This tolerance is guaranteed by onsemi's manufacturing process and applies to all units bearing the "B" suffix, ensuring consistent regulation performance across production lots without binning.
Can the 1N5934BRL be used in surface-mount designs?
No - the 1N5934BRL uses a DO-41 axial-leaded package (Case 59) intended for through-hole mounting. It is not compatible with standard SMT reflow profiles or pick-and-place equipment. For surface-mount alternatives, consider the MMSZ5245B (SOD-123, 500 mW), though it lacks the 3 W power rating and 98 W surge capability of the 1N5934BRL.
What is the maximum allowable lead temperature during soldering for the 1N5934BRL?
The maximum lead temperature for soldering the 1N5934BRL is 260°C, measured at a point 1/16″ from the case, for no longer than 10 seconds. This specification ensures junction integrity is preserved during wave or hand-soldering operations. Exceeding this limit risks internal bond degradation or passivation layer damage, potentially increasing leakage or shifting Zener voltage.
How does the 1N5934BRL handle transient surges?
The 1N5934BRL is rated for 98 W non-repetitive surge power at 1 ms pulse width, as defined in Figure 3 of the onsemi datasheet. This capability allows it to safely clamp fast transients such as inductive switch-off spikes or EFT bursts in 24 V systems. Surge performance is independent of steady-state thermal limits and must be evaluated using the published surge curve-not DC derating charts.
Is the 1N5934BRL RoHS compliant and halogen-free?
Yes - the "G" suffix in the full ordering code (1N5934BRL, G) explicitly denotes a Pb-free, RoHS-compliant package. The device meets JEDEC J-STD-609A Class 1 moisture sensitivity and contains no intentionally added halogens. Full compliance documentation, including substance declarations and test reports, is available via onsemi's product portal under document number 1N5913B/D.
1N5934BRL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-204AL, DO-41, Axial
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 24 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 19 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 18.2 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.5 V @ 200 mA
- Operating Temperature:
- -65°C ~ 200°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- Axial
1N5934BRL FAQ
1.How can I place an order for 1N5934BRL through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5934BRL 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 1N5934BRL reliable?
The price and inventory of 1N5934BRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5934BRL is usually 5 days.
3.What payment methods are accepted for 1N5934BRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5934BRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5934BRL?
1N5934BRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5934BRL 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 1N5934BRL?
For technical support, including 1N5934BRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5934BRL requirements.
6.How does Aetrix verify that 1N5934BRL is sourced from the original manufacturer or authorized distributors?
All 1N5934BRL 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 1N5934BRL meets industry standards.
7.What is the process for return or replacement of 1N5934BRL?
All 1N5934BRL units undergo pre-shipment inspection (PSI). If there is an issue with 1N5934BRL, 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 1N5934BRL part is unused and in its original packaging.
Return procedure for 1N5934BRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5934BRL Tags
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BZT52C5V6T-7
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MMSZ5231B-7-F
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BZX84C3V3LT1G
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MMSZ4682T1G
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BZT52C15S-7-F
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MM5Z5V1ST1G
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SMAZ12-13-F
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