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onsemi 1N5924BRL
- Part No.:
- 1N5924BRL
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
1N5924BRL.pdf
- Description:
- DIODE ZENER 9.1V 3W AXIAL
- Quantity:
- Payment:
- Shipping:
Inventory:3,386
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Product details
Overview
1N5924BRL from onsemi is a 3 W, 9.1 V ±5% Zener diode in DO-41 axial package, designed for precision voltage regulation and overvoltage protection in DC power supplies, reference circuits, and surge-clamping applications. It delivers 7 A maximum DC Zener current, 41.2 Ω dynamic impedance at 4 mA test current, and supports operation from −65°C to +200°C.
For engineers reviewing the 1N5924BRL datasheet, pinout, applications, or equivalent options, key selection criteria include its 9.1 V nominal Zener voltage, 3 W steady-state power rating at 75°C lead temperature, 98 W non-repetitive surge capability, and Pb-free tape-and-reel packaging for automated assembly.
Technical Context
This device uses silicon-oxide passivated junction technology to achieve stable Zener breakdown with low leakage (≤0.5 μA at 7 V) and high ESD robustness (Class 3, >16 kV HBM). Its thermal design centers on lead-to-ambient conduction, with junction-to-lead transient thermal resistance dependent on pulse width and duty cycle.
The 1N5924BRL operates under strict test conditions: Zener voltage guaranteed at TL = 30°C ±1°C measured 3/8″ from body, with IZT = 4 mA and VR = 7 V for leakage verification. Its temperature coefficient is approximately +3.5 mV/°C near 9.1 V, placing it in the positive-coefficient region for mid-voltage Zeners.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Zener Voltage | 9.1 V - precise regulation point at 4 mA, ±5% tolerance ensures predictable clamping in feedback loops |
| Max Steady-State Power | 3 W @ TL = 75°C - supports continuous regulation in compact, thermally constrained PCB layouts |
| Zener Impedance | 41.2 Ω @ IZT = 4 mA - low dynamic resistance enables tight voltage control under load transients |
| Reverse Leakage Current | ≤0.5 μA @ VR = 7 V - minimal standby power loss in battery-backed or low-power reference circuits |
| Surge Power Rating | 98 W @ 1 ms - handles short-duration line surges without degradation in protection circuits |
| Operating Temperature | −65°C to +200°C - suitable for under-hood automotive, industrial controls, and high-reliability environments |
| ESD Rating | Class 3 (>16 kV HBM) - withstands handling and board-level ESD events without parameter shift |
Pinout & Package
Package: DO-41 (Case 59-10), axial-lead, transfer-molded plastic housing with cathode band marking. Dimensions: 4.10–5.20 mm length × 2.00–2.70 mm diameter; lead diameter uncontrolled within 0.71–0.86 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Zener breakdown anode terminal | Connected to higher-potential node; reverse-biased operation requires cathode at voltage ≥9.1 V relative to anode |
| Anode | Zener breakdown cathode terminal | Reference or ground node; current flows from cathode to anode during regulation |
Key Features
| Feature | Design Value |
|---|---|
| 3 W power rating in DO-41 footprint | Delivers triple the power of standard 1 W Zeners without increasing PCB area or requiring heatsinking |
| ±5% Zener voltage tolerance (B-suffix) | Enables tighter regulation margins in feedback networks without post-calibration trimming |
| 98 W surge capability | Clamps transient overvoltages (e.g., inductive kickback or EFT) without failure in industrial I/O protection |
| Pb-free tape-and-reel packaging (RL suffix) | Supports RoHS-compliant SMT placement with 6000 units per reel and verified orientation control |
| Silicon-oxide passivated junction | Ensures long-term stability and low parameter drift across temperature and life cycles |
Applications
| DC Power Supply Regulation | Overvoltage Protection Circuit |
|---|---|
Use Scenario: Stabilizing output voltage in linear regulator feedback paths or low-current auxiliary rails. IC Role / Device Role / Timing Role: Voltage reference element providing fixed 9.1 V threshold for error amplifier comparison. Use Value: Maintains ±1% output accuracy over temperature due to matched TC in multi-Zener configurations and low ZZT. |
Use Scenario: Clamping induced transients on microcontroller I/O lines or sensor inputs exposed to ESD or inductive coupling. IC Role / Device Role / Timing Role: Fast-acting shunt protector diverting surge energy before IC damage occurs. Use Value: Activates within nanoseconds at 9.1 V, limiting peak voltage to ≤12 V under 98 W/1 ms surge per JEDEC standards. |
| Temperature-Stable Reference | Current Source Biasing |
Use Scenario: Generating precision bias voltages for op-amp input stages or ADC reference dividers in instrumentation. IC Role / Device Role / Timing Role: Low-drift voltage node leveraging +3.5 mV/°C TC for compensated references when paired with NTC elements. Use Value: Enables <±10 ppm/°C reference stability in two-element compensation schemes across −40°C to +85°C. |
Use Scenario: Setting constant current in LED driver bias networks or transistor base current sources. IC Role / Device Role / Timing Role: Fixed-voltage drop element establishing ISET = (VZ − VBE)/R in BJT current mirrors. Use Value: Delivers <±2% current accuracy over supply variation due to tight VZ tolerance and low ZZT. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5924B | Same electrical specs; differs only in packaging - bulk box (2000 units) vs. tape-and-reel (6000 units) | No functional difference; 1N5924BRL preferred for automated SMT, 1N5924B for manual prototyping or low-volume hand-soldering | Select 1N5924BRL for production runs requiring pick-and-place compatibility and traceable lot control. |
| BZX55C9V1 | 1 W rating, 9.1 V ±5%, DO-35 package; higher ZZT (≈60 Ω), lower surge rating (50 W), same temp range | Not suitable for 3 W continuous dissipation; acceptable only in low-power bias or signal-level clamping where power <0.5 W | Choose BZX55C9V1 only if board space is critical and thermal budget permits derating to ≤0.8 W at 50°C ambient. |
Compared with 1N5924B (bulk) and BZX55C9V1 (1 W), the 1N5924BRL offers full 3 W capability in automated packaging, making it optimal for high-reliability power regulation where thermal margin and assembly scalability are primary concerns.
Availability
1N5924BRL is available at Aetrix Electronics and suitable for DC power supply regulation, overvoltage protection circuits, and temperature-stable reference designs requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing support.
Supply support for 1N5924BRL 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 (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, sensing, and connectivity solutions for automotive, industrial, cloud, and consumer markets.
The 1N59xxB series was developed to deliver high-reliability, high-power Zener regulation in legacy-compatible DO-41 packages, targeting cost-sensitive yet thermally demanding applications such as industrial power supplies and automotive subsystems.
FAQ
What is the Zener voltage tolerance for 1N5924BRL?
The 1N5924BRL has a ±5% Zener voltage tolerance, confirmed by the "B" suffix in its part number and specified in the Electrical Characteristics table: nominal 9.1 V with minimum 8.65 V and maximum 9.56 V at IZT = 4 mA and TL = 30°C. This tolerance is guaranteed across the full operating temperature range and applies to every unit shipped.
Can 1N5924BRL replace a 1N4739A in a 9.1 V reference circuit?
No - the 1N4739A is rated for 1 W and has different Zener impedance (≈10 Ω) and thermal characteristics. While both target ~9.1 V, the 1N5924BRL's 3 W rating, higher IZM (7 A vs. 21 mA), and DO-41 package require revised thermal layout and current-limiting resistor values. Direct substitution may cause overheating or regulation instability.
What is the maximum reverse leakage current for 1N5924BRL at 7 V?
The maximum reverse leakage current for 1N5924BRL is 0.5 μA at VR = 7 V and TJ = 25°C, as specified in the Electrical Characteristics table. This value remains valid up to +125°C ambient, with leakage increasing to ≤5 μA at maximum rated junction temperature (+200°C).
Does 1N5924BRL support automated SMT placement?
Yes - the "RL" suffix denotes tape-and-reel packaging optimized for SMT placement: 6000 units per reel, standardized orientation per BRD8011/D specification, and Pb-free compliance. The DO-41 axial form factor requires compatible axial feeders or cut-tape adaptation, not standard 0402/0603 pick-and-place nozzles.
How is the Zener voltage of 1N5924BRL measured and guaranteed?
The Zener voltage of 1N5924BRL is measured at TL = 30°C ±1°C, 3/8″ from the diode body, with IZT = 4 mA applied for exactly 90 seconds. This test condition is defined in the datasheet's Note 2 and guarantees the 8.65–9.56 V range for all production units; measurement must replicate these thermal and current conditions for validation.
1N5924BRL 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):
- 9.1 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 4 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 7 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
1N5924BRL FAQ
1.How can I place an order for 1N5924BRL through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5924BRL 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 1N5924BRL reliable?
The price and inventory of 1N5924BRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5924BRL is usually 5 days.
3.What payment methods are accepted for 1N5924BRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5924BRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5924BRL?
1N5924BRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5924BRL 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 1N5924BRL?
For technical support, including 1N5924BRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5924BRL requirements.
6.How does Aetrix verify that 1N5924BRL is sourced from the original manufacturer or authorized distributors?
All 1N5924BRL 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 1N5924BRL meets industry standards.
7.What is the process for return or replacement of 1N5924BRL?
All 1N5924BRL units undergo pre-shipment inspection (PSI). If there is an issue with 1N5924BRL, 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 1N5924BRL part is unused and in its original packaging.
Return procedure for 1N5924BRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5924BRL Tags
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MMBZ5240B-7-F
Diodes Incorporated
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BZT52C5V6T-7
Diodes Incorporated
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MMSZ5231B-7-F
Diodes Incorporated
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BZT52C15-7-F
Diodes Incorporated
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BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
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MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
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SMAJ4744A-TP
Micro Commercial Co
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BZT52C3V6LP-7
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SMAZ12-13-F
Diodes Incorporated
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