My Inquiry
My Account
Microchip Technology 1PMT5941E3/TR13
- Part No.:
- 1PMT5941E3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5941E3/TR13.pdf
- Description:
- DIODE ZENER 47V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,641
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1PMT5941E3/TR13 from Microsemi is a 47 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 67 Ω dynamic impedance at 8.0 mA test current and <1 µA reverse leakage at 35.8 V. It serves as a precision voltage reference or overvoltage clamp in power supply regulation circuits.
For engineers reviewing the 1PMT5941E3/TR13 datasheet, 1PMT5941E3/TR13 pinout, 1PMT5941E3/TR13 application, or 1PMT5941E3/TR13 equivalent, key selection criteria include zener voltage accuracy, thermal resistance (30°C/W junction-to-TAB), ESD robustness (>16 kV HBM), and compatibility with automated SMT assembly per EIA-481 tape-and-reel packaging.
Technical Context
This Zener diode operates in reverse breakdown mode to maintain stable voltage across its terminals under varying load and line conditions. Its Powermite® package integrates a full metallic bottom and locking tab that functions as both mechanical anchor and thermal path to PCB copper, enabling efficient heat transfer from junction to TAB 1.
The device exhibits low knee impedance (≤1000 Ω at IZK = 0.25 mA) and tight voltage regulation over temperature (–55°C to +150°C junction range), supporting reliable clamping in transient suppression and feedback-sensing applications where forward voltage drop (1.2 V @ 200 mA) is irrelevant to primary function.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage VZ | 47 V ±5% at IZT = 8.0 mA - defines nominal regulation point with predictable deviation in production |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous power handling with derating above ambient |
| Dynamic Impedance ZZT | 67 Ω at IZT = 8.0 mA - determines output voltage variation under small-signal current changes |
| Reverse Leakage IR | <1 µA at VR = 35.8 V - ensures minimal quiescent current in standby or high-impedance bias networks |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - quantifies temperature rise per watt, critical for thermal design on PCB |
| ESD Rating | >16 kV HBM - provides robustness against human-body-model electrostatic discharge during handling and assembly |
| Junction Temp Range | –55°C to +150°C - supports operation in automotive under-hood and industrial control environments |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral locking tab; cathode designated by TAB 1; weight ≈ 0.016 g; DO-216 outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary thermal and electrical connection point; must be soldered to copper pour for thermal management and circuit return |
| Lead 2 | Anode | Signal input terminal; reverse-biased relative to TAB 1 during Zener operation |
Key Features
| Feature | Design Value |
|---|---|
| Surface-mount Powermite® package | Enables automated placement and reflow while delivering 3.0 W power handling in footprint smaller than DO-41 |
| Integral heat sink locking tab | Provides mechanical retention during reflow and direct thermal conduction path from junction to PCB copper |
| Full metallic bottom | Eliminates solder flux entrapment risk, improving long-term reliability and solder joint integrity |
| ESD robustness >16 kV HBM | Reduces need for external ESD protection in board-level handling and system integration |
Applications
| Power Supply Voltage Reference | Overvoltage Clamp in DC-DC Converters |
|---|---|
Use Scenario: Stabilizing feedback node in isolated flyback or buck-boost converters requiring precise 47 V reference. IC Role / Device Role / Timing Role: Zener diode providing shunt-regulated voltage reference for optocoupler or error amplifier input. Use Value: Tight 47 V ±5% tolerance and low 67 Ω dynamic impedance ensure stable loop response and minimal output drift. | Use Scenario: Protecting gate drivers or controller ICs from transient overvoltage spikes on 48 V bus rails. IC Role / Device Role / Timing Role: Passive clamping element diverting excess energy to ground when rail exceeds 47 V. Use Value: 3.0 W power rating and 30°C/W thermal resistance allow sustained clamping without thermal runaway. |
| Industrial Sensor Bias Network | Automotive Body Control Module Protection |
Use Scenario: Providing stable bias voltage for analog sensor signal conditioning circuits operating from unregulated 24 V supplies. IC Role / Device Role / Timing Role: Zener-based voltage shifter establishing fixed reference for op-amp input stages. Use Value: Low reverse leakage (<1 µA) prevents loading of high-impedance sensor outputs and preserves accuracy. | Use Scenario: Suppressing load-dump transients on 12 V/24 V vehicle subsystems such as lighting or HVAC controls. IC Role / Device Role / Timing Role: Transient voltage suppressor clamping induced surges before they reach microcontroller I/O pins. Use Value: –55°C to +150°C operating range and >16 kV HBM rating meet AEC-Q101 stress requirements for under-hood use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5355B | Same 47 V nominal rating but in DO-15 package; higher thermal resistance (50°C/W); no metallic bottom or locking tab | Requires larger PCB footprint and manual or wave-solder process; less suitable for high-volume SMT | Select 1N5355B only if through-hole mounting is required and thermal budget allows higher junction rise |
| BZX84-C47 | 47 V SOT-23 device rated for 300 mW; 10× lower power; 150 Ω dynamic impedance; same ±5% tolerance | Limited to low-power biasing or signal-level clamping; cannot replace 1PMT5941E3/TR13 in 3 W applications | Choose BZX84-C47 only for space-constrained, low-current designs where 3 W capability is unnecessary |
Compared with 1N5355B and BZX84-C47, the 1PMT5941E3/TR13 delivers unique 3.0 W SMT capability with integrated thermal management-enabling compact, high-reliability designs where power density and automated assembly are critical.
Availability
1PMT5941E3/TR13 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, and embedded sensor interface modules requiring stable component supply and consistent Zener voltage performance.
Supply support for 1PMT5941E3/TR13 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 was engineered to deliver high-power surface-mount voltage regulation in ruggedized packages optimized for automotive, telecom, and industrial power systems.
FAQ
What is the Zener voltage tolerance for 1PMT5941E3/TR13?
The 1PMT5941E3/TR13 has a standard Zener voltage tolerance of ±5% at 47 V, measured at 8.0 mA test current and TAB 1 temperature of 30°C. Tighter tolerances (±2%, ±1%) are available with suffixes C and D, but the base part number 1PMT5941E3/TR13 specifies ±5%.
How is thermal management handled in the 1PMT5941E3/TR13 package?
The 1PMT5941E3/TR13 uses the Powermite® package with a full metallic bottom and integral locking tab that serves as the cathode (TAB 1) and primary thermal path. Its specified thermal resistance is 30°C/W junction-to-TAB, meaning effective heat sinking requires direct soldering of TAB 1 to a copper pour on the PCB.
Is 1PMT5941E3/TR13 compatible with automated SMT assembly processes?
Yes, the 1PMT5941E3/TR13 is designed for automated insertion and reflow soldering. It ships in EIA-481 compliant tape-and-reel format (13-inch reel, 12,000 pieces), and its Powermite® package features a locking tab and flux-free metallic bottom to prevent assembly defects and ensure placement stability.
What is the maximum reverse leakage current for 1PMT5941E3/TR13?
The maximum reverse leakage current for 1PMT5941E3/TR13 is 1 µA at a reverse voltage of 35.8 V and ambient temperature of 30°C. This low leakage supports high-impedance bias networks and minimizes power loss in always-on circuits.
Does 1PMT5941E3/TR13 meet automotive reliability standards?
The 1PMT5941E3/TR13 operates across –55°C to +150°C junction temperature and has >16 kV HBM ESD rating, aligning with core stress requirements of AEC-Q101. While not formally AEC-Q101 certified as a standalone part, its specifications and construction support use in automotive body control and power modules where qualification is performed at system level.
1PMT5941E3/TR13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-216AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 47 V
- Tolerance:
- ±20%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 67 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 35.8 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
1PMT5941E3/TR13 FAQ
1.How can I place an order for 1PMT5941E3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5941E3/TR13 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 1PMT5941E3/TR13 reliable?
The price and inventory of 1PMT5941E3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5941E3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5941E3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5941E3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5941E3/TR13?
1PMT5941E3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5941E3/TR13 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 1PMT5941E3/TR13?
For technical support, including 1PMT5941E3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5941E3/TR13 requirements.
6.How does Aetrix verify that 1PMT5941E3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5941E3/TR13 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 1PMT5941E3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5941E3/TR13?
All 1PMT5941E3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5941E3/TR13, 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 1PMT5941E3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5941E3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5941E3/TR13 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
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…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
