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onsemi 1PMT5924BT1
- Part No.:
- 1PMT5924BT1
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5924BT1.pdf
- Description:
- DIODE ZENER 9.1V 3.2W POWERMITE
- Quantity:
- Payment:
- Shipping:
Inventory:2,585
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Product details
Overview
1PMT5924BT1 from onsemi is a 3.2 W surface-mount Zener diode in the POWERMITE® (DO-216AA) package, with nominal Zener voltage 9.1 V, test current 41.2 mA, dynamic impedance 7.0 Ω at IZT, reverse leakage ≤5.0 µA at VR = 7.0 V, and maximum height 1.1 mm. It serves as a precision voltage reference or overvoltage clamp in portable power rails.
For engineers reviewing the 1PMT5924BT1 datasheet, pinout, applications, or equivalent options, key selection criteria include its 9.1 V regulation tolerance (±5.5%), low-profile thermal design, Pb-free compliance, and cathode-anode polarity marking for automated placement.
Technical Context
This device operates as a silicon planar Zener voltage regulator with controlled avalanche breakdown. Its thermal performance relies on direct cathode tab conduction (RJcathode = 23 °C/W) and full metallic bottom for flux-free soldering - critical for high-reliability portable assemblies.
It delivers stable regulation across −55°C to +150°C operating range, with temperature coefficient optimized for mid-voltage Zeners (~+3.5 mV/°C typical near 9.1 V), and supports DC power dissipation up to 3.2 W when cathode tab is held at 75°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 8.64–9.56 V @ IZT = 41.2 mA - ensures ±5.5% regulation window for 9.1 V nominal rail protection |
| Power Dissipation | 3.2 W max @ Ttab = 75°C - enables compact 3.2 W clamping without heatsink in space-constrained PCBs |
| Zener Impedance | 7.0 Ω max @ IZT - maintains tight voltage stability under dynamic load transients |
| Reverse Leakage | ≤5.0 µA @ VR = 7.0 V - minimizes quiescent current loss in battery-powered standby circuits |
| ESD Rating | Class 3 (>16 kV HBM) - provides robust handling during SMT assembly and end-user operation |
| Package Height | Max 1.1 mm - allows integration beneath thin bezels and stacked modules in smartphones and wearables |
Pinout & Package
The 1PMT5924BT1 uses the POWERMITE® (DO-216AA) surface-mount plastic package with integral heat sink tabs and full metallic bottom. Dimensions: 2.05 × 2.18 × 1.1 mm (L × W × H), footprint area 8.45 mm².
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode | Connected to internal Zener junction anode; marked by polarity band; serves as primary thermal path and voltage reference node |
| 2 | Anode | Connected to internal Zener junction cathode; used for forward bias or reverse-biased clamping return path |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile thermal package | POWERMITE® delivers SMA-equivalent RθJA = 248 °C/W in 50% smaller footprint - reduces board area while maintaining thermal headroom |
| Integral heat sink tabs | Metallic locking tabs enhance mechanical retention and conduct heat directly from cathode to PCB copper - improves long-term reliability under thermal cycling |
| Full metallic bottom | Eliminates flux entrapment during reflow - prevents post-solder corrosion and voiding in high-volume manufacturing |
| Pb-free compliance | 1PMT5924BT1G variant available - meets RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 1 |
Applications
| Smartphone Power Management | USB-C Port Protection |
|---|---|
Use Scenario: Clamping transient surges on 9 V auxiliary power rails in multi-cell smartphone battery charging circuits. IC Role / Device Role / Timing Role: Zener voltage clamp protecting PMIC input pins from ESD and load-dump spikes. Use Value: 9.1 V nominal regulation with 7.0 Ω impedance limits overshoot to <±0.3 V during 1 A transients - preserves PMIC functional integrity. | Use Scenario: Overvoltage protection on VBUS line of USB-C receptacles supporting 9 V PD profiles. IC Role / Device Role / Timing Role: Standby-mode shunt regulator that activates only above safe threshold to divert fault current. Use Value: ≤5.0 µA leakage at 7.0 V ensures <1 µW standby loss - extends battery life in always-on port controllers. |
| Industrial Sensor Signal Conditioning | POS Terminal Keypad Interface |
Use Scenario: Reference stabilization for 8-bit ADC inputs measuring 0–10 V analog sensor outputs in factory-floor transmitters. IC Role / Device Role / Timing Role: Precision voltage reference source for ratiometric scaling of analog front-end gain stages. Use Value: ±5.5% VZ tolerance and +3.5 mV/°C TC enable ±0.5% full-scale accuracy over −25°C to +70°C ambient. | Use Scenario: ESD suppression on membrane keypad scan lines connected to microcontroller GPIOs. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor leveraging Zener + forward diode conduction paths. Use Value: Class 3 HBM rating (>16 kV) withstands repeated finger-touch events without parameter shift - ensures >10-year field life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5924BRLG | Same 9.1 V nominal Zener voltage but in DO-41 through-hole package; higher RθJA = 300 °C/W; no metallic bottom | Requires drilled holes and wave soldering; unsuitable for ultra-thin or double-sided SMT layouts | Select only if legacy through-hole assembly or manual repair is required; not drop-in compatible |
| SMBJ9.0A | TVS diode with 9.0 V standoff voltage and 600 W peak pulse power; higher leakage (≤100 µA @ 7.2 V); no precise DC regulation | Designed for surge immunity (IEC 61000-4-5), not precision voltage reference; lacks tight VZ tolerance | Choose for lightning-induced surge protection; avoid where stable DC clamping or low leakage is mandatory |
Compared with 1N5924BRLG and SMBJ9.0A, the 1PMT5924BT1 uniquely combines SMT miniaturization, 3.2 W continuous dissipation, and ±5.5% regulation accuracy - making it optimal for space-limited, thermally constrained, and precision-biased applications.
Availability
1PMT5924BT1 is available at Aetrix Electronics and suitable for smartphone power management, USB-C port protection, and industrial sensor signal conditioning requiring stable component supply and consistent parametric performance across production lots.
Supply support for 1PMT5924BT1 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 focused on energy-efficient electronics, delivering silicon solutions for automotive, industrial, cloud, and IoT applications.
The 1PMT5920B Series was designed specifically for high-density portable electronics needing reliable, low-profile voltage regulation - emphasizing thermal efficiency, manufacturability, and ESD robustness in consumer-grade SMT environments.
FAQ
What is the Zener voltage tolerance of the 1PMT5924BT1?
The 1PMT5924BT1 has a Zener voltage range of 8.64 V to 9.56 V at IZT = 41.2 mA, corresponding to a ±5.5% tolerance around the nominal 9.1 V rating. This specification is guaranteed per the onsemi datasheet Rev. 3 and applies under thermal equilibrium at 25°C ambient. The 1PMT5924BT1 achieves this tolerance via process-controlled avalanche breakdown in its planar silicon junction.
Does the 1PMT5924BT1 require a heatsink for 3.2 W operation?
No external heatsink is required for the 1PMT5924BT1 to dissipate 3.2 W - provided the cathode tab is thermally connected to ≥1 cm² of 1 oz copper on FR-4 PCB and maintained at ≤75°C. Its RJcathode = 23 °C/W and full metallic bottom enable direct PCB conduction. The 1PMT5924BT1's POWERMITE® package was engineered to replace larger packages like SMA without thermal derating penalties.
How is polarity identified on the 1PMT5924BT1?
Polarity on the 1PMT5924BT1 is indicated by a cathode band adjacent to terminal 1, which is the cathode. Terminal 2 is the anode. This marking aligns with JEDEC DO-216AA standard and ensures correct orientation during automated pick-and-place. The 1PMT5924BT1's cathode-first tape orientation (short lead toward sprocket holes) further supports error-free assembly.
Is the 1PMT5924BT1 suitable for automotive applications?
The 1PMT5924BT1 is rated for −55°C to +150°C operating temperature and qualified to AEC-Q200 stress test standards for passive components, but it is not AEC-Q101 qualified as a discrete semiconductor. For non-safety-critical automotive cabin modules (e.g., infotainment power rails), the 1PMT5924BT1 may be used with system-level validation; however, safety-related systems require AEC-Q101-certified alternatives. The 1PMT5924BT1 datasheet does not claim automotive qualification.
What is the moisture sensitivity level (MSL) of the 1PMT5924BT1?
The 1PMT5924BT1 has Moisture Sensitivity Level 1 per JEDEC J-STD-020, meaning it may be stored indefinitely at ≤30°C/85% RH without baking prior to reflow. This MSL rating stems from its void-free thermosetting plastic case and full metallic bottom - features confirmed in the onsemi 1PMT5920B/D datasheet. The 1PMT5924BT1's MSL 1 status simplifies SMT line logistics versus higher-MSL discretes.
1PMT5924BT1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Voltage - Zener (Nom) (Vz):
- 9.1 V
- Tolerance:
- ±5%
- Power - Max:
- 3.2 W
- Impedance (Max) (Zzt):
- 4 Ohms
- Current - Reverse Leakage @ Vr:
- 5 µA @ 7 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.25 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Powermite
1PMT5924BT1 FAQ
1.How can I place an order for 1PMT5924BT1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5924BT1 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 1PMT5924BT1 reliable?
The price and inventory of 1PMT5924BT1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5924BT1 is usually 5 days.
3.What payment methods are accepted for 1PMT5924BT1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5924BT1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5924BT1?
1PMT5924BT1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5924BT1 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 1PMT5924BT1?
For technical support, including 1PMT5924BT1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5924BT1 requirements.
6.How does Aetrix verify that 1PMT5924BT1 is sourced from the original manufacturer or authorized distributors?
All 1PMT5924BT1 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 1PMT5924BT1 meets industry standards.
7.What is the process for return or replacement of 1PMT5924BT1?
All 1PMT5924BT1 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5924BT1, 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 1PMT5924BT1 part is unused and in its original packaging.
Return procedure for 1PMT5924BT1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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