Microchip Technology 1PMT5934CE3/TR7
- Part No.:
- 1PMT5934CE3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5934CE3/TR7.pdf
- Description:
- DIODE ZENER 24V 3W DO216AA
- Quantity:
- Payment:

- Shipping:

Inventory:4,306
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Product details
Overview
1PMT5934CE3/TR7 from Microsemi is a 24 V, ±5% tolerance surface-mount Zener diode in the Powermite® package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 19 Ω dynamic impedance at 15.6 mA test current and 1 µA max reverse leakage at 18.2 V. It serves as a precision voltage reference or overvoltage clamp in DC power rails of industrial control modules.
For engineers reviewing the 1PMT5934CE3/TR7 datasheet, 1PMT5934CE3/TR7 pinout, 1PMT5934CE3/TR7 application, or 1PMT5934CE3/TR7 equivalent, key selection criteria include zener voltage tolerance, thermal resistance (30°C/W junction-to-TAB), ESD rating (>16 kV HBM), low knee impedance, and compatibility with automated SMT assembly.
Technical Context
This Zener diode operates in reverse breakdown mode to regulate or clamp voltage with tight voltage stability across temperature (–55°C to +150°C junction/storage range). Its full metallic bottom and integral locking tab provide mechanical anchoring and enhanced thermal conduction to the PCB pad.
The device exhibits low reverse leakage (≤1 µA at VR = 18.2 V) and controlled dynamic impedance (19 Ω at IZT = 15.6 mA), enabling stable regulation under varying load conditions. The DO-216 package footprint supports high-density layouts while maintaining 3.0 W power handling capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 24 V ±5% - precise clamping threshold for 24 V nominal systems |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - enables robust thermal performance without external heatsink |
| Test Current | 15.6 mA - defined operating point for voltage specification and impedance measurement |
| Dynamic Impedance | 19 Ω - low AC impedance ensures minimal voltage deviation under ripple or transient load changes |
| Reverse Leakage | ≤1 µA at 18.2 V - guarantees low standby power loss in high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB - allows accurate thermal design when mounted on copper pour |
| ESD Rating | >16 kV HBM - provides inherent protection against handling-induced electrostatic discharge |
Pinout & Package
Package: Powermite® (DO-216), molded surface-mount package with full metallic bottom and integral heat-sink locking tab. Cathode is designated by TAB 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat path and electrical cathode connection; must be soldered to thermal pad for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode terminal; connects to lower-potential node in reverse-bias configuration |
Key Features
| Feature | Design Value |
|---|---|
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term solder joint reliability |
| Integral heat-sink locking tab | Provides mechanical retention and direct thermal conduction path to PCB copper |
| Automated insertion compatibility | Enables high-throughput placement using standard SMT pick-and-place equipment |
| Low knee impedance (0.25 Ω at IZK) | Ensures stable regulation even at low bias currents near breakdown threshold |
| Wide zener voltage range (3.3–200 V) | Supports standardized design reuse across multiple rail voltages within same package family |
Applications
| Industrial Power Supply Monitoring | Automotive Body Control Module |
|---|---|
Use Scenario: Monitoring 24 V battery rail for undervoltage/overvoltage faults in programmable logic controllers. IC Role / Device Role / Timing Role: Zener reference for comparator input threshold setting. Use Value: Stable 24 V reference enables reliable fault detection across –40°C to +105°C ambient with <±5% voltage drift. | Use Scenario: Clamping transients on LIN bus power line during load dump events. IC Role / Device Role / Timing Role: Overvoltage protection element shunting surge energy to ground. Use Value: 3.0 W power rating absorbs 100 ms pulses up to 30 V without degradation, per ISO 7637-2. |
| Medical Infusion Pump Power Stage | Telecom Remote Radio Unit |
Use Scenario: Providing regulated bias voltage for motor driver gate-control circuitry. IC Role / Device Role / Timing Role: Precision voltage reference for op-amp feedback network. Use Value: 19 Ω dynamic impedance minimizes output ripple sensitivity, ensuring clean gate drive signals. | Use Scenario: Stabilizing auxiliary 24 V supply feeding FPGA configuration circuitry. IC Role / Device Role / Timing Role: Low-leakage voltage clamp preventing brownout during hot-swap transitions. Use Value: ≤1 µA reverse leakage preserves hold-up capacitance, extending safe shutdown window by >200 ms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMCJ24A | TVS diode (unidirectional), 24 V standoff, 38.9 V clamping, 1500 W peak pulse power | Designed for transient suppression, not precision DC regulation | Use only where surge immunity dominates over voltage accuracy |
| BZX84-C24 | SOT-23 package, 24 V ±5%, 300 mW power, 25 Ω dynamic impedance, 100 nA leakage | Limited thermal capacity; unsuitable for sustained 3 W dissipation | Select when board space is critical and average power <100 mW |
Compared with SMCJ24A and BZX84-C24, the 1PMT5934CE3/TR7 uniquely balances 3.0 W continuous power handling, 24 V precision regulation, and SMT manufacturability-making it optimal for DC rail stabilization where both accuracy and thermal robustness are required.
Availability
1PMT5934CE3/TR7 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, medical infusion pumps, and telecom remote radio units requiring stable component supply with full traceability and lifecycle support.
Supply support for 1PMT5934CE3/TR7 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 U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
The Powermite® Zener diode product line delivers high-power surface-mount voltage regulation in compact packages, designed specifically for space-constrained, thermally demanding applications where traditional through-hole Zeners fall short.
FAQ
What is the zener voltage tolerance for 1PMT5934CE3/TR7?
The 1PMT5934CE3/TR7 has a nominal zener voltage of 24 V with a standard tolerance of ±5%. This tolerance is measured at 15.6 mA test current with TAB 1 held at 30°C. Tighter tolerances (±2% and ±1%) are available with suffixes C and D, but the CE3/TR7 variant specifies ±5%.
How is thermal performance specified for 1PMT5934CE3/TR7?
The 1PMT5934CE3/TR7 has a thermal resistance of 30°C/W from junction to TAB 1. Its 3.0 W power rating applies when TAB 1 is maintained at 60°C. Effective thermal design requires soldering TAB 1 to a minimum 100 mm² copper pour; derating is necessary above 60°C ambient or with reduced copper area.
Is 1PMT5934CE3/TR7 compatible with lead-free reflow processes?
Yes, the 1PMT5934CE3/TR7 is qualified for lead-free reflow per JEDEC J-STD-020. Its molded Powermite® package withstands peak temperatures up to 260°C for 10 seconds. The full metallic bottom ensures uniform heating and eliminates voiding risks associated with flux entrapment.
What does the 'E3/TR7' suffix indicate in 1PMT5934CE3/TR7?
The 'E3' denotes tape-and-reel packaging per EIA-481 standard, and 'TR7' specifies a 7-inch reel containing 3,000 units. This packaging format ensures compatibility with high-speed SMT pick-and-place equipment and supports automated manufacturing workflows.
Can 1PMT5934CE3/TR7 be used as a replacement for through-hole zener diodes like 1N5245B?
No-while both regulate at ~24 V, the 1PMT5934CE3/TR7 is a surface-mount device with 3.0 W power rating and thermal path via TAB 1, whereas the 1N5245B is a 0.5 W through-hole device with different thermal behavior and mounting requirements. Direct substitution requires PCB redesign and thermal validation.
1PMT5934CE3/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):
- 24 V
- Tolerance:
- ±2%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 19 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 18.2 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
1PMT5934CE3/TR7 FAQ
1.How can I place an order for 1PMT5934CE3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5934CE3/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 1PMT5934CE3/TR7 reliable?
The price and inventory of 1PMT5934CE3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5934CE3/TR7 is usually 5 days.
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Once your 1PMT5934CE3/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 1PMT5934CE3/TR7?
For technical support, including 1PMT5934CE3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5934CE3/TR7 requirements.
6.How does Aetrix verify that 1PMT5934CE3/TR7 is sourced from the original manufacturer or authorized distributors?
All 1PMT5934CE3/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 1PMT5934CE3/TR7 meets industry standards.
7.What is the process for return or replacement of 1PMT5934CE3/TR7?
All 1PMT5934CE3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5934CE3/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 1PMT5934CE3/TR7 part is unused and in its original packaging.
Return procedure for 1PMT5934CE3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5934CE3/TR7 Tags

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