Microchip Technology 1PMT5928/TR7
- Part No.:
- 1PMT5928/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5928/TR7.pdf
- Description:
- DIODE ZENER 13V 3W DO216AA
- Quantity:
- Payment:

- Shipping:

Inventory:6,976
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Product details
Overview
1PMT5928B from Microsemi is a 13 V, 3.0 W surface-mount Zener diode in the Powermite® package, featuring 7.0 Ω dynamic impedance at 28.8 mA test current, 550 µA max reverse leakage at 1 V, and thermal resistance of 30°C/W junction-to-tab. It serves as a precision voltage reference or overvoltage clamp in power supply regulation and transient protection circuits.
For engineers reviewing the 1PMT5928B datasheet, 1PMT5928B pinout, 1PMT5928B application, or 1PMT5928B equivalent, key selection criteria include zener voltage tolerance (±5%), ESD rating (>16 kV HBM), full metallic bottom for flux-free soldering, and compatibility with automated insertion equipment.
Technical Context
This Zener diode operates with a nominal zener voltage of 13 V at 28.8 mA (IZT), exhibits low dynamic impedance (7.0 Ω), and maintains tight regulation across temperature (–55°C to +150°C junction range). Its Powermite® package integrates a locking tab acting as an integral heat sink and features a full metallic bottom to prevent solder flux entrapment.
The device delivers 3.0 W DC power dissipation when TAB 1 is held at 60°C, supports forward voltage of 1.2 V at 200 mA, and achieves knee current (IZK) of 0.25 mA with knee impedance (ZZK) of 550 Ω - enabling stable low-current regulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 13 V ±5% at 28.8 mA - defines stable regulation point for reference or clamping |
| Power Dissipation | 3.0 W with TAB 1 at 60°C - enables high-power SMT operation without external heatsink |
| Dynamic Impedance (ZZT) | 7.0 Ω at IZT - ensures minimal output voltage variation under load changes |
| Reverse Leakage (IR) | ≤550 µA at VR = 1 V - guarantees low standby power loss in bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - allows accurate thermal design using tab as primary heat path |
| ESD Rating | >16 kV per HBM - provides robust handling in automated assembly and field environments |
| Junction Temp Range | –55°C to +150°C - supports operation in automotive under-hood and industrial control applications |
Pinout & Package
Package: Powermite® (DO-216AA), molded surface-mount package with full metallic bottom and integral heat-sink locking tab; cathode designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat-sinking terminal and electrical cathode connection; must be thermally anchored for rated power |
| Lead 2 | Anode | Standard anode connection; mounted opposite TAB 1 per DO-216AA mechanical outline |
Key Features
| Feature | Design Value |
|---|---|
| Integral Heat Sink Locking Tab | TAB 1 functions as both cathode and low-thermal-resistance path (30°C/W) to PCB copper |
| Full Metallic Bottom | Eliminates solder flux entrapment during reflow, improving long-term reliability and void-free solder joints |
| Automated Insertion Compatibility | Robust mechanical design and standardized tape-and-reel packaging (EIA-481) support high-speed pick-and-place |
| Low Reverse Leakage | ≤550 µA at 1 V reverse bias ensures minimal current draw in precision bias networks |
| Tight Voltage Tolerance Option | Available in ±2% (suffix C) and ±1% (suffix D) for high-accuracy reference applications |
Applications
| Power Supply Voltage Reference | Overvoltage Clamp Protection |
|---|---|
Use Scenario: Stabilizing feedback node in isolated DC-DC converter secondary-side regulation. IC Role / Device Role / Timing Role: Zener diode providing precise 13 V reference to optocoupler input or error amplifier. Use Value: Maintains ±5% output regulation accuracy across line/load/temperature with 7.0 Ω dynamic impedance. | Use Scenario: Protecting microcontroller I/O pins from ESD and surge transients on industrial sensor interfaces. IC Role / Device Role / Timing Role: Clamping device shunting excess voltage above 13 V to ground via TAB 1. Use Value: Absorbs 3.0 W peak power without degradation, leveraging 30°C/W thermal path to PCB. |
| Automotive Body Control Module | Industrial PLC Input Conditioning |
Use Scenario: Regulating auxiliary 13 V rail for LIN transceiver bias in under-hood modules. IC Role / Device Role / Timing Role: Primary voltage reference with operation up to +150°C junction temperature. Use Value: Ensures stable bias under thermal stress, supported by –55°C to +150°C qualified operating range. | Use Scenario: Level-shifting and protecting 24 V digital inputs against back-EMF and lightning-induced surges. IC Role / Device Role / Timing Role: Standoff/clamp element placed between input and ground with 13 V breakdown threshold. Use Value: Delivers >16 kV HBM ESD immunity and low-leakage (<550 µA) to preserve signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ13A | TVS diode (not Zener); 13 V standoff, 1500 W peak pulse power, higher clamping voltage | Designed for transient suppression, not precision DC regulation | Select only for surge-only protection; not suitable as voltage reference |
| BZX84-C13 | SOT-23 Zener; 13 V ±5%, 300 mW power, 40 Ω dynamic impedance, no integral heatsink tab | Limited to low-power biasing; cannot dissipate 3.0 W without external heatsinking | Use where space is constrained and power < 0.3 W; avoid for high-stability or high-power roles |
Compared with SMCJ13A and BZX84-C13, the 1PMT5928B uniquely combines 3.0 W continuous dissipation, 7.0 Ω dynamic impedance, and integrated thermal management - making it optimal for precision, high-power Zener applications where stability and thermal performance are critical.
Availability
1PMT5928B is available at Aetrix Electronics and suitable for power supply regulation, overvoltage protection, automotive body control modules, and industrial PLC input conditioning requiring stable component supply and long-term lifecycle support.
Supply support for 1PMT5928B 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
Microsemi (now part of Microchip Technology) is a semiconductor manufacturer specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line was designed for high-power surface-mount voltage regulation and transient clamping in space-constrained, thermally demanding applications - emphasizing robust packaging, low thermal resistance, and automated assembly readiness.
FAQ
What is the zener voltage tolerance for 1PMT5928B?
The standard 1PMT5928B has a zener voltage tolerance of ±5% at 13 V. Tighter tolerances are available: ±2% with suffix C (1PMT5928C) and ±1% with suffix D (1PMT5928D). All variants maintain identical thermal and packaging characteristics, and the 1PMT5928B datasheet specifies voltage measurement at 28.8 mA test current with TAB 1 held at 30°C for 20 seconds.
How is thermal management handled in the 1PMT5928B package?
The 1PMT5928B uses its metallic TAB 1 as the primary thermal conduction path, achieving 30°C/W junction-to-tab thermal resistance. This design eliminates need for external heatsinks in most 3.0 W applications. The full metallic bottom prevents flux entrapment, ensuring reliable solder joint formation and consistent thermal transfer to the PCB copper plane.
Can 1PMT5928B be used in automotive under-hood applications?
Yes, the 1PMT5928B is qualified for junction temperatures from –55°C to +150°C and features >16 kV HBM ESD rating - meeting requirements for under-hood automotive modules. Its Powermite® package resists mechanical stress and thermal cycling, and the 13 V regulation supports LIN bus biasing and sensor reference rails in harsh environments.
What is the maximum reverse leakage current for 1PMT5928B?
The 1PMT5928B has a maximum reverse leakage current (IR) of 550 µA at 1 V reverse voltage and 30°C. At higher reverse voltages near breakdown, leakage remains tightly controlled due to low knee impedance (550 Ω at 0.25 mA), ensuring predictable turn-on behavior essential for precision clamping and reference designs.
Is 1PMT5928B compatible with standard SMT reflow processes?
Yes, the 1PMT5928B is supplied in EIA-481 compliant tape-and-reel format (3,000 pcs per 7-inch reel) and designed for compatibility with automated pick-and-place and lead-free reflow soldering. Its molded Powermite® package withstands standard JEDEC moisture sensitivity level (MSL) handling, and the full metallic bottom ensures void-free solder joints without flux entrapment.
1PMT5928/TR7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 13 V
- Tolerance:
- ±20%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 7 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 9.9 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.2 V @ 200 mA
- Operating Temperature:
- -55°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-216AA
1PMT5928/TR7 FAQ
1.How can I place an order for 1PMT5928/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5928/TR7 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 1PMT5928/TR7 reliable?
The price and inventory of 1PMT5928/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5928/TR7 is usually 5 days.
3.What payment methods are accepted for 1PMT5928/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5928/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5928/TR7?
1PMT5928/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5928/TR7 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 1PMT5928/TR7?
For technical support, including 1PMT5928/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5928/TR7 requirements.
6.How does Aetrix verify that 1PMT5928/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5928/TR7 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 1PMT5928/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5928/TR7?
All 1PMT5928/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5928/TR7, 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 1PMT5928/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5928/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5928/TR7 Tags

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