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Product Details:
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| Product: | 0.91" PMOLED | Structure: | COG + PCB |
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| Resolution: | 128 X 32 Pixels | Interfaces: | I²C (IIC), 4 Pins |
| Controller: | SSD1306 | Bightness: | 150 Cd/m² (Min), 180 Cd/m² (Typ) |
| Color: | White & Blue, Optional | Supply Voltage: | 1.65V To 3.3V |
| Opereating Temp.: | -40℃ To +70℃ | Contrast Ratio: | 2000 : 1 ( Dark Room Contrast ) |
| Module Size: | 38.0 Mm (L) X 12.0 Mm (W) X 3.1 Mm (T) Max | Supply Voltage (Display): | 6.4V To 9V (External) / 3.5V To 4.2V (Internal DC/DC) |
| Compliance: | REACH & RoHS Compliant | Customization:: | Available |
| Highlight: | 0.91-inch OLED display module with I²C,SSD1306 PMOLED for embedded designs,compact OLED display module wearable |
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Saef Technology Limited presents the SFOM091JY-12832WB-01, a high-performance 0.91-inch PMOLED display module designed for engineers and developers who require ultra-compact, low-power, and reliable displays for embedded systems, wearable devices, IoT interfaces, and industrial instrumentation. With its crisp 128x32 resolution, I²C interface, and robust SSD1306 driver, this module delivers exceptional clarity and ease of integration in space-constrained designs across Europe and the United States.
Ultra-Compact Form Factor:
Measuring only 38.0 x 12.0 x 3.1 mm, this display is ideal for wearable tech, medical monitors, smart sensors, and portable instruments where every millimeter counts.
High-Contrast PMOLED Technology:
Featuring a 2000:1 contrast ratio and 150–180 cd/m² brightness, this OLED delivers sharp, self-emissive pixels with wide viewing angles and no backlight—perfect for low-light or sunlight-readable applications.
Wide Operating Temperature Range:
Rated for -40°C to 70°C, this module performs reliably in extreme environments, from industrial automation to outdoor wearables.
Low Power Consumption:
With sleep mode currents as low as 1 μA (VDD) and 2 μA (VCC), this display extends battery life in power-sensitive designs.
Flexible Power Architecture:
Supports both external VCC (6.4V–9V) and internal DC/DC conversion from VBAT (3.5V–4.2V), simplifying power system design.
I²C Interface with Full Command Control:
Based on the industry-standard SSD1306, the module offers complete programmability for multiplex ratios, COM scan direction, contrast, pre-charge periods, and VCOMH levels—enabling fine-tuned optimization for your application.
Struggling with limited PCB real estate?
Our 0.91-inch OLED fits into tight layouts with a simple 4-pin interface (GND, VCC, SCL, SDA), reducing routing complexity and BOM cost.
Need a display that works in freezing or high-temperature environments?
With an operating range of -40°C to 70°C and full compliance with industrial reliability testing (including vibration, ESD, and temperature cycling), this module is built for harsh conditions.
Concerned about power management in battery-operated devices?
The integrated DC/DC converter and ultra-low sleep currents enable years of operation on a single coin cell.
Looking for a display that supports custom font colors or graphics?
While standard models come in white or blue, Saef offers free semi-custom modifications including color tuning, custom pinouts, firmware tweaks, and even touchscreen integration (RTP/CTP) upon request.
ISO 9001:2015 & ISO 14001:2015 Certified – Your assurance of quality and environmental responsibility.
Full SSD1306 Command Support – Datasheet includes detailed timing diagrams, initialization sequences, and power-up/down protocols.
Reliability Tested – Includes high/low temperature operation, storage, humidity, vibration, ESD, and drop tests.
Engineer-to-Engineer Support – Access to technical documentation, sample code, and direct factory engineering consultation.
Wearable Devices (Smartwatches, Fitness Trackers)
Medical Monitoring Equipment
IoT Dashboards & Sensor Displays
Industrial HMIs & Instrumentation
Consumer Electronics (Portable Audio, Gaming)
Automotive & Aviation Interfaces
Smart Home Controls
Ready to integrate? Contact our engineering team for free customization quotes, sample requests, or firmware support. We support low MOQ and fast turnaround for OEM/ODM projects, including touchscreen integration, bezel modifications, and custom connector layouts.
Call to Action
Download the full datasheet, view command tables, or request a development sample today. Let Saef Technology empower your next embedded vision with displays engineered for reliability, clarity, and ease of integration.
Mechanical Dimensions
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Interface Pin Definition
| PIN | SYMBOL | Descriptions |
| 1 | GND | Ground of Logic Circuit |
| 2 | VCC | Power Supply for Logic |
| 3 | SCK | Serial clock input. |
| 4 | SDA | Serial data input. |
Absolute Maximum Ratings
| Parameter | Symbol | Min | Max | Unit |
| Supply Voltage for Logic | VDD | -0.3 | 4 | V |
| Supply Voltage for Display | VCC | 0 | 16.5 | V |
| Supply Voltage for DC/DC | VBAT | -0.3 | 4.5 | V |
| Operating Temperature | TOP | -40 | 70 | .C |
| Storage Temperature | TSTG | -40 | 85 | .C |
| Life Time (110 cd/m2) | 10/000 | - | hour | |
| Life Time (80 cd/m2) | 30/000 | - | hour | |
| Life Time (60 cd/m2) | 50/000 | - | hour |
Optics Characteristics
| Characteristics | Symbol | Conditions | Min | Typ | Max | Unit |
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Brightness (VCC Supplied Externally) |
Lbr | - | 90 | - | - | cd/m2 |
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Brightness (VC Generated by Internal DC/DC) |
Lbr | - | 80 | 110 | - | cd/m2 |
| C.I.E. (White) |
(x) (y) |
C.I.E. 1931 |
0.25 0.27 |
0.29 0.31 |
0.33 0.35 |
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| Dark Room Contrast | CR | - | 2000:1 | - | ||
| Viewing Angle | - | Free | - | degree |
DC Characteristics
| Characteristics | Symbol | Conditions | Min | Typ | Max | Unit |
| Supply Voltage for Logic | VDD | - | 3.3 | - | V | |
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Supply Voltage for Display (Supplied Externally) |
VCC |
Note 5 (Internal DC/DC Disable) |
8.5 | 9.0 | 9.5 | V |
| Supply Voltage for DC/DC | VBAT | Internal DC/DC Enable | - | 3.3 | - | V |
| Supply Voltage for Display Generated by Internal DC/DC | VCC |
Note 6 (Internal DC/DC Enable) |
7.0 | - | 7.5 | V |
| High Level Input | VIH | IOUT = 100μA/ 3.3MHz | 0.8×VDD | - | VDD | V |
| Low Level Input | VIL | IOUT = 100μA/ 3.3MHz | 0 | - | 0.2×VDD | V |
| High Level Output | VOH | IOUT = 100μA/ 3.3MHz | 0.9×VDD | - | VDD | V |
| Low Level Output | VOL | IOUT = 100μA/ 3.3MHz | 0 | - | 0.1×VDD | V |
| Operating Current for VDD | IDD | - | 160 | 220 | μA | |
| Operating Current for VCC (VCC Supplied Externally) | ICC | - | 9 | 15 | mA | |
| Operating Current for VBAT (VCC Generated by Internal DC/DC) | IBAT | - | 27.0 | 32.0 | mA | |
| Sleep Mode Current for VDD | IDD/ SLEEP | - | - | 10 | μA | |
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Sleep Mode Current for VCC
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ICC/ SLEEP | - | - | 10 | μA |
Contact Us
We love to hear about your projects, If you have any questions, we can be reached at cologne_ke@saef.com.cn
Contact Person: Cologne Ke
Tel: +8613502983321
Fax: 86-755-2370-9419