My Inquiry
My Account
onsemi 1PMT5929BT1G
- Part No.:
- 1PMT5929BT1G
- Manufacturer:
- onsemi
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5929BT1G.pdf
- Description:
- DIODE ZENER 15V 3.2W POWERMITE
- Quantity:
- Payment:
- Shipping:
Inventory:1,539
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1PMT5929BT1G from onsemi is a 3.2 W surface-mount Zener diode in the POWERMITE (DO-216AA) package, with nominal Zener voltage 15 V (14.25–15.75 V), test current 25 mA, dynamic impedance 9.0 Ω at IZT, and reverse leakage ≤1.0 µA at 11.4 V. It delivers low-profile thermal performance (RθJC = 23 °C/W to cathode tab) and is used for precision voltage regulation in space-constrained portable power rails.
For engineers reviewing the 1PMT5929BT1G datasheet, pinout, applications, or equivalent options, key selection criteria include its 15 V regulation tolerance, 3.2 W dissipation at Ttab = 75 °C, JEDEC-registered DO-216AA footprint, and Class 3 ESD rating (>16 kV HBM).
Technical Context
The 1PMT5929BT1G operates as a two-terminal voltage reference device, conducting in reverse breakdown to clamp voltage across load circuits. Its Zener mechanism provides stable regulation under varying load currents within its specified IZK–IZT range (0.25 mA to 25 mA), with temperature coefficient optimized for mid-voltage Zeners (~+3.5 mV/°C typical per Figure 6).
Thermal design relies on direct heat conduction from the cathode tab (Pin 1) to PCB copper, enabled by full metallic bottom and integral locking tabs. The 1.1 mm max height and 1.90 × 1.96 mm footprint support high-density layouts where SMA or SOD-123 alternatives would exceed board area constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 14.25–15.75 V @ IZT = 25 mA - defines regulated output voltage window under standard test conditions |
| Power Dissipation | 3.2 W @ cathode tab Ttab = 75 °C - maximum steady-state power handling with proper thermal pad layout |
| Zener Impedance (ZZT) | 9.0 Ω @ IZT = 25 mA - determines AC ripple rejection and regulation stability under dynamic load changes |
| Reverse Leakage (IR) | ≤1.0 µA @ VR = 11.4 V - ensures minimal standby current in battery-powered systems |
| Thermal Resistance (RθJC) | 23 °C/W (junction-to-cathode tab) - enables thermal modeling of junction temperature rise above PCB copper |
| ESD Rating | Class 3 (>16 kV HBM) - supports robustness against handling and system-level electrostatic discharge events |
| Package | POWERMITE (DO-216AA), 1.90 × 1.96 × 1.00 mm - JEDEC-registered ultra-small outline with integral heat sink tabs |
Pinout & Package
The 1PMT5929BT1G uses the POWERMITE (DO-216AA) surface-mount package with a full metallic bottom and integral cathode heat-sink tab. Cathode is marked by a polarity band and designated Pin 1; Anode is Pin 2. Mounting orientation is unrestricted, and soldering is rated to 260 °C for 10 seconds.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Cathode) | Current sink / thermal path | Primary heat conduction node; must be connected to thermal pad for rated 3.2 W operation |
| Pin 2 (Anode) | Current source / reference return | Low-inductance connection point for load return; not thermally coupled to die |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low profile | 1.1 mm max height - enables stacking under shields or integration into slim handheld enclosures |
| Small footprint | 8.45 mm² area - 50% smaller than SMA while matching thermal resistance to ambient |
| Full metallic bottom | Eliminates flux entrapment during reflow - improves solder joint reliability and void control |
| Pb-free & RoHS compliant | Meets EU Directive 2011/65/EU - suitable for consumer, industrial, and medical end equipment |
| Tape-and-reel packaging | 3000 units per reel, cathode lead oriented toward sprocket holes - supports automated pick-and-place |
Applications
| Portable Power Rail Regulation | USB-C PD Voltage Clamp |
|---|---|
|
Use Scenario: Regulating 15 V supply rail in Bluetooth earbud charging case PCB where board space is limited to <10 mm² per component. IC Role / Device Role / Timing Role: Two-terminal shunt regulator maintaining stable 15 V despite input variation from 16–20 V Li-ion charger output. Use Value: 1PMT5929BT1G's 9.0 Ω ZZT ensures <±50 mV output deviation under ±100 mA load transients, critical for analog codec biasing. |
Use Scenario: Clamping overvoltage on USB-C CC line during hot-plug detection to protect Type-C controller GPIO. IC Role / Device Role / Timing Role: Transient voltage suppressor limiting CC line to ≤15.75 V during 100 V surge events per USB PD spec. Use Value: 1PMT5929BT1G's Class 3 ESD rating and 1.0 µA leakage at 11.4 V prevent false detection while minimizing standby current drain. |
| Industrial Sensor Signal Conditioning | Automotive Body Control Module Reference |
|
Use Scenario: Providing stable 15 V reference for 24-bit sigma-delta ADC in vibration sensor node operating at −40 to +125 °C ambient. IC Role / Device Role / Timing Role: Precision voltage reference source with known TC for ratiometric scaling of bridge sensor outputs. Use Value: 1PMT5929BT1G's tight 14.25–15.75 V tolerance and documented TC curve enable <0.1% full-scale error compensation across temperature. |
Use Scenario: Biasing CAN transceiver VIO rail in BCM subassembly where 12 V battery input varies between 9–16 V during cranking. IC Role / Device Role / Timing Role: Secondary shunt regulator stabilizing 15 V auxiliary rail feeding isolated digital isolators and level shifters. Use Value: 1PMT5929BT1G's 3.2 W rating at 75 °C tab temperature allows continuous operation without derating in sealed plastic housing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MMSZ5245B-TP (Micro Commercial) | 15 V nominal, 500 mW, SOD-123 package, RθJA = 350 °C/W - no cathode thermal tab | Limited to ≤150 mW continuous in same PCB area; unsuitable for >200 mA load step response | Select when board space permits larger thermal relief or power demand is <0.5 W |
| BZX84-C15 (Nexperia) | 15 V nominal, 300 mW, SOT-23 package, ZZT = 30 Ω @ 5 mA - higher impedance, lower power | Higher output impedance causes >150 mV droop under 50 mA load steps; not rated for 3.2 W | Select only for low-current signal-level clamping where thermal performance is secondary |
Compared with MMSZ5245B-TP and BZX84-C15, the 1PMT5929BT1G uniquely combines 3.2 W dissipation, 9.0 Ω ZZT, and DO-216AA footprint-enabling compact, high-stability regulation where thermal management and dynamic response are co-constrained.
Availability
1PMT5929BT1G is available at Aetrix Electronics and suitable for portable power rail regulation, USB-C PD voltage clamp, and industrial sensor signal conditioning requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for 1PMT5929BT1G 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 silicon solutions for automotive, industrial, cloud, medical, and IoT applications.
The 1PMT5929BT1G belongs to the 1PMT5920B Series of high-power Zener diodes designed specifically for space-constrained, thermally demanding voltage regulation in portable and battery-powered systems.
FAQ
What is the maximum continuous power dissipation of the 1PMT5929BT1G?
The 1PMT5929BT1G has a maximum DC power dissipation of 3.2 W when the cathode tab temperature is maintained at 75 °C. This rating assumes mounting on a PCB with recommended minimum copper pad area per the onsemi datasheet. Derating is required above 75 °C tab temperature at 4.0 mW/°C.
How is the cathode identified on the 1PMT5929BT1G package?
The cathode of the 1PMT5929BT1G is marked by a polarity band on the top surface of the POWERMITE package and corresponds to Pin 1 in the mechanical outline. In tape-and-reel packaging, the cathode (short) lead is oriented toward the sprocket holes per onsemi specification BRD8011/D.
Does the 1PMT5929BT1G meet RoHS and REACH requirements?
Yes, the 1PMT5929BT1G is Pb-free and fully RoHS compliant per EU Directive 2011/65/EU. It also meets REACH SVHC requirements and carries the "G" suffix designation indicating compliance with onsemi's green packaging standards.
What is the Zener impedance of the 1PMT5929BT1G at its rated test current?
The 1PMT5929BT1G has a maximum Zener impedance (ZZT) of 9.0 Ω measured at IZT = 25 mA and 60 Hz AC signal superimposed on DC bias. This value directly impacts regulation accuracy under dynamic load conditions and is confirmed in the Electrical Characteristics table on page 2 of the datasheet.
Can the 1PMT5929BT1G replace SMA-package Zeners in existing designs?
The 1PMT5929BT1G is not a drop-in replacement for SMA Zeners due to different footprint and thermal interface requirements. While both offer similar power ratings, the 1PMT5929BT1G requires dedicated cathode thermal pad layout and has a 1.90 × 1.96 mm DO-216AA outline versus SMA's 4.5 × 2.7 mm body - redesign of land pattern and thermal vias is necessary.
1PMT5929BT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 15 V
- Tolerance:
- ±5%
- Power - Max:
- 3.2 W
- Impedance (Max) (Zzt):
- 9 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 11.4 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
1PMT5929BT1G FAQ
1.How can I place an order for 1PMT5929BT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5929BT1G 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 1PMT5929BT1G reliable?
The price and inventory of 1PMT5929BT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5929BT1G is usually 5 days.
3.What payment methods are accepted for 1PMT5929BT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5929BT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5929BT1G?
1PMT5929BT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5929BT1G 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 1PMT5929BT1G?
For technical support, including 1PMT5929BT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5929BT1G requirements.
6.How does Aetrix verify that 1PMT5929BT1G is sourced from the original manufacturer or authorized distributors?
All 1PMT5929BT1G 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 1PMT5929BT1G meets industry standards.
7.What is the process for return or replacement of 1PMT5929BT1G?
All 1PMT5929BT1G units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5929BT1G, 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 1PMT5929BT1G part is unused and in its original packaging.
Return procedure for 1PMT5929BT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5929BT1G Tags
-
MMBZ5240B-7-F
Diodes Incorporated
-
BZT52C5V6T-7
Diodes Incorporated
-
MMSZ5231B-7-F
Diodes Incorporated
-
BZT52C15-7-F
Diodes Incorporated
-
BZX84C3V3LT1G
onsemi
-
MMSZ5245BS-7-F
Diodes Incorporated
-
MMSZ4682T1G
onsemi
-
BZT52C15S-7-F
Diodes Incorporated
-
MM5Z5V1ST1G
onsemi
-
SMAJ4744A-TP
Micro Commercial Co
-
BZT52C3V6LP-7
Diodes Incorporated
-
SMAZ12-13-F
Diodes Incorporated
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
