Panjit International Inc. S1MF_R1_00001
Full Technical Specifications
11 Parameters| Parameter / Attribute | Specification / Value |
|---|---|
| Diode type | Standard |
| Mounting | Surface Mount |
| Voltage - DC reverse (Vr) | 1000 V |
| Voltage - forward (Vf) (Max) @ if | 1.1 V @ 1 A |
| Current - reverse leakage @ vr | 1 µA @ 1000 V |
| Current - average rectified | 1A |
| Operating temperature - junction | -55°C~150°C |
| Speed | Standard Recovery >500ns, > 200mA (Io) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | DO-221AA, SMB Flat Leads |
| Capacitance @ vr, | 9pF @ 4V, 1MHz |
Need Stock or a Drop-in Second-Source for S1MF_R1_00001?
Package: DO-41 (DO-204AL) axial · Pin-compatible replacements with immediate Shenzhen spot stock
The 1N4007 is the highest-volume rectifier ever made and is never seriously short of supply - but it is also one of the most relabeled parts in the spot market: lots marked 1N4007 occasionally contain lower-voltage dies (1N4001-1N4004 grades) or refurbished pulls, which is exactly the failure that only shows up when the 1000V margin is needed. New designs have mostly migrated to the SMA versions (M7 / S1M), so automated SMT lines and high-density boards increasingly adopt the SMD surface-mount packages in standard factory reels.
Verified Pin-Compatible Replacements (4 verified alternatives)
Deep Factory-Direct Production Reel Stock
Shenzhen Spot Stock (24-48h Dispatch)
1000V VRRM, 1.0A IO, VF 1.1V max at 1A, IFSM 30A - the electrical match to 1N4007 in a surface-mount body.
VRRM 1000V; TJ -55 to +150 degC; standard recovery (trr ~2us class).
Branded JEDEC-Registered Line at Commodity Pricing on Volume
Shenzhen Spot Stock (24-48h Dispatch)
The JEDEC-registered S1x-family equivalent of 1N400x: 1000V VRRM, 1A IO, trr 1.8us typical, VF 1.1V max at 1A.
VRRM 1000V; IFSM 30A; TJ -55 to +150 degC.
Current Upgrade in an Economical Body
Shenzhen Spot Stock (24-48h Dispatch)
Same 1000V family with three times the current: 3.0A IO, IFSM 200A, VF 1.0V max at 3A.
VRRM 1000V; TJ -55 to +150 degC; standard recovery.
Behavior Upgrade for Switching Circuits
Shenzhen Spot Stock (24-48h Dispatch)
Ultrafast 1000V 1A rectifier: trr 75ns versus roughly 2us for the 1N4007 - the right part anywhere switching speed matters.
VRRM 1000V; IO 1A; VF 1.7V max at 1A (a real trade against the 1N4007 VF).
Buyer & Quality Checklist for Sourcing Alternatives
- On incoming lots, check the body marking under magnification: relabeled lots carrying lower-voltage dies are the usual reason a 1N4007 fails where a 1N4004-rated margin would not be enough.
- Only substitute upward within the family: 1N4001 (50V) through 1N4007 (1000V) share the 1A / DO-41 body, so 1N4001 to 1N4007 is always electrically safe, and the reverse removes voltage margin.
- For mains-frequency (50/60Hz) rectification the standard 2us recovery is fine; for anything switching above roughly 1kHz, move to US1M / UF4007 ultrafast instead of stock 1N4007.
- When migrating to SMA (M7 or S1M), check pad size and thermal relief: the copper area is much smaller than the axial part had, and a continuous 1A load on thin copper runs hotter than the old through-hole did.
Frequently Asked Technical Questions
Q: Is M7 the same as 1N4007?
A: Electrically yes - M7 is the SMA surface-mount version of the 1N4007 family: 1000V, 1A, VF about 1.1V. The difference is the package: SMA pads instead of axial DO-41 holes. On boards that already carry SMA pads, M7 is the direct fit.
Q: Can I use a 1N4004 or 1N4001 in place of a 1N4007?
A: No. The family shares the 1A current and the DO-41 package but the reverse voltage drops to 400V (1N4004) and 50V (1N4001). Substituting downward removes margin exactly where the 1000V rating was chosen. Substituting upward is always safe.
Q: Why do 1N4007 lots from some sources fail early in mains rectification?
A: The common causes are relabeled lower-voltage dies, refurbished pulls with re-marked bodies, and undersized inrush handling on big bulk-capacitor charge cycles. Ordering from a desk that photographs the actual lot markings before dispatch is the practical protection.