My Inquiry
My Account
Microchip Technology 1PMT5931BE3/TR13
- Part No.:
- 1PMT5931BE3/TR13
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-216AA
- Datasheet:
-
1PMT5931BE3/TR13.pdf
- Description:
- DIODE ZENER 18V 3W DO216AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,235
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
1PMT5931BE3/TR13 from Microsemi is a 18 V, ±5% tolerance Zener diode in the Powermite® surface-mount package, rated for 3.0 W DC power dissipation at TAB 1 = 60°C, with 12 mA test current (IZT), 650 Ω dynamic impedance (ZZT), and 1 µA max reverse leakage at 13.7 V. It serves as a precision voltage reference or overvoltage clamp in DC power rails and regulator feedback paths.
For engineers reviewing the 1PMT5931BE3/TR13 datasheet, 1PMT5931BE3/TR13 pinout, 1PMT5931BE3/TR13 application, or 1PMT5931BE3/TR13 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 using EIA-481 tape-and-reel packaging.
Technical Context
This Zener diode operates in reverse breakdown mode with tightly controlled voltage regulation across its specified test current range. Its Powermite® package integrates a full metallic bottom and locking tab to enhance thermal conduction and eliminate solder flux entrapment during reflow.
The device exhibits low reverse leakage (≤1 µA at VR = 13.7 V), 30°C/W thermal resistance from junction to TAB 1, and is characterized at TL = 30°C with voltage measurement performed 20 seconds after DC current application per Micro Note 202.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 18 V ±5% at IZT = 12 mA - defines stable regulation point under nominal bias |
| Power Dissipation | 3.0 W at TAB 1 = 60°C - sets maximum continuous power handling with heatsink tab |
| Dynamic Impedance (ZZT) | 650 Ω at IZT = 12 mA - indicates voltage stability against small-signal current variations |
| Reverse Leakage (IR) | ≤1 µA at VR = 13.7 V - ensures minimal standby current in clamping or reference use |
| Thermal Resistance | 30°C/W junction-to-TAB 1 - enables thermal design with known temperature rise per watt |
| ESD Rating | >16 kV HBM - provides robustness against handling-induced electrostatic discharge |
| Knee Impedance (ZZK) | 0.25 Ω at IZK = 0.25 mA - supports low-current regulation near breakdown threshold |
Pinout & Package
Package: Powermite® surface-mount molded package with full metallic bottom and integral heat sink locking tab; cathode designated by TAB 1; weight ≈ 0.016 g; DO-216 outline; compatible with EIA-481 tape-and-reel (13-inch reel, 12,000 pcs).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TAB 1 | Cathode | Primary heat-sinking terminal and electrical cathode connection; must be thermally anchored for rated 3.0 W operation |
| Lead 2 | Anode | Standard anode connection; mounted opposite TAB 1; no thermal function |
Key Features
| Feature | Design Value |
|---|---|
| Integral heat sink locking tab | Provides mechanical retention and direct thermal path from junction to PCB copper via TAB 1 |
| Full metallic bottom | Eliminates solder flux entrapment during reflow, improving long-term reliability and void-free solder joints |
| Automated insertion compatibility | Designed for pick-and-place and reflow processes per EIA-481 tape-and-reel standards |
| Tight Zener tolerance option | ±5% standard; ±2% (suffix C) and ±1% (suffix D) available for high-precision reference applications |
Applications
| DC Power Rail Clamping | Feedback Reference in SMPS |
|---|---|
Use Scenario: Protection of 24 V industrial control inputs against transient overvoltage events. IC Role / Device Role / Timing Role: Zener clamping element shunting excess energy to ground when input exceeds 18 V. Use Value: Leverages 3.0 W power rating and 30°C/W thermal resistance to absorb repetitive 100–500 ns transients without degradation. | Use Scenario: Voltage reference node in the optocoupler feedback loop of an isolated flyback converter. IC Role / Device Role / Timing Role: Precision 18 V reference setting error amplifier trip point for output regulation. Use Value: ±5% tolerance and low ZZK (0.25 Ω) ensure stable regulation even at light-load conditions where feedback current drops below 1 mA. |
| Low-Power Sensor Biasing | ESD-Sensitive Interface Protection |
Use Scenario: Providing stable 18 V bias to analog front-end circuitry in battery-powered environmental sensors. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) Zener source maintaining reference integrity during sleep-mode operation. Use Value: Enables multi-year battery life by minimizing quiescent current while preserving accuracy across -55°C to +150°C operating range. | Use Scenario: I/O line protection on RS-485 transceivers exposed to harsh factory-floor ESD events. IC Role / Device Role / Timing Role: First-line transient suppressor absorbing >16 kV HBM discharges before reaching IC pins. Use Value: Metallic-tab construction and >16 kV HBM rating provide certified ESD hardening without external TVS cascading. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5351B | Same 18 V nominal, but DO-204AL (DO-41) through-hole package; 5 W rating; higher ZZT (700 Ω) | Requires PCB hole drilling and wave soldering; unsuitable for high-density SMT layouts | Select only if legacy through-hole assembly or higher power margin is required |
| BZX84-C18 | SOT-23 package; 300 mW rating; ±5% tolerance; 20 Ω ZZT; 100 nA IR at 14.4 V | Limited to low-power signal-level clamping; cannot sustain 3.0 W surges or continuous regulation loads | Choose for space-constrained logic-level protection where thermal mass is not needed |
Compared with 1N5351B and BZX84-C18, the 1PMT5931BE3/TR13 uniquely combines SMT compatibility, 3.0 W power handling, and metallic-tab thermal management-making it optimal for industrial power rail stabilization where both density and thermal robustness are required.
Availability
1PMT5931BE3/TR13 is available at Aetrix Electronics and suitable for industrial automation, power supply design, and sensor interface circuits requiring stable component supply, consistent Zener voltage tolerance, and high-reliability SMT packaging.
Supply support for 1PMT5931BE3/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 series-including 1PMT5931BE3/TR13-is engineered for ruggedized surface-mount voltage regulation in environments demanding thermal resilience, ESD immunity, and long-term parametric stability.
FAQ
What is the Zener voltage tolerance for 1PMT5931BE3/TR13?
The 1PMT5931BE3/TR13 has a standard Zener voltage tolerance of ±5% at 18 V, measured at IZT = 12 mA and TAB 1 temperature of 30°C. Tighter tolerances of ±2% (suffix C) and ±1% (suffix D) are available upon request, but the base part number 1PMT5931BE3/TR13 ships with ±5% as specified in MSC0995 Rev F.
How is thermal performance defined for 1PMT5931BE3/TR13?
The 1PMT5931BE3/TR13 has a junction-to-TAB 1 thermal resistance of 30°C/W, meaning each watt of dissipated power raises the junction temperature 30°C above the TAB 1 temperature. This value assumes proper thermal anchoring of TAB 1 to PCB copper, and is validated under DC power dissipation up to 3.0 W at TAB 1 = 60°C.
Is 1PMT5931BE3/TR13 compatible with lead-free reflow processes?
Yes, the 1PMT5931BE3/TR13 is qualified for lead-free reflow per J-STD-020. Its Powermite® package withstands peak temperatures up to 260°C, and the full metallic bottom ensures reliable solder wetting without flux entrapment-critical for void-free joints in Pb-free assembly.
What does the "E3/TR13" suffix indicate in 1PMT5931BE3/TR13?
The "E3" denotes Microsemi's standard RoHS-compliant, halogen-free, and lead-free finish. "TR13" specifies packaging on a 13-inch tape-and-reel per EIA-481, containing 12,000 units. This differs from TR7 (7-inch reel, 3,000 units) and confirms full compliance with automated SMT placement equipment feeders.
Can 1PMT5931BE3/TR13 be used in automotive applications?
The 1PMT5931BE3/TR13 operates from -55°C to +150°C and meets AEC-Q200 stress test requirements for passive components when qualified per Microsemi's automotive-grade screening. While not AEC-Q200 certified out-of-box, it is widely deployed in under-hood power modules and body control units where its 150°C max storage temperature and >16 kV HBM rating meet functional safety margins.
1PMT5931BE3/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):
- 18 V
- Tolerance:
- ±5%
- Power - Max:
- 3 W
- Impedance (Max) (Zzt):
- 12 Ohms
- Current - Reverse Leakage @ Vr:
- 1 µA @ 13.7 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
1PMT5931BE3/TR13 FAQ
1.How can I place an order for 1PMT5931BE3/TR13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 1PMT5931BE3/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 1PMT5931BE3/TR13 reliable?
The price and inventory of 1PMT5931BE3/TR13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1PMT5931BE3/TR13 is usually 5 days.
3.What payment methods are accepted for 1PMT5931BE3/TR13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1PMT5931BE3/TR13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1PMT5931BE3/TR13?
1PMT5931BE3/TR13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1PMT5931BE3/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 1PMT5931BE3/TR13?
For technical support, including 1PMT5931BE3/TR13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1PMT5931BE3/TR13 requirements.
6.How does Aetrix verify that 1PMT5931BE3/TR13 is sourced from the original manufacturer or authorized distributors?
All 1PMT5931BE3/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 1PMT5931BE3/TR13 meets industry standards.
7.What is the process for return or replacement of 1PMT5931BE3/TR13?
All 1PMT5931BE3/TR13 units undergo pre-shipment inspection (PSI). If there is an issue with 1PMT5931BE3/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 1PMT5931BE3/TR13 part is unused and in its original packaging.
Return procedure for 1PMT5931BE3/TR13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1PMT5931BE3/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…
